• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a halogen-free flame retardant reinforced nylon material and its method of preparation and applications. The preparation process includes: mixing a part of the flame retardant with the toughness agent and granulating, then mixing the resulting granules with the nylon, the rest of the flame retardant, the lubricant and the antioxidant and granulating to obtain a material Halogen-free flame retardant reinforced nylon composite. For the granulation at the first stage, the flame retardant used represents 50-80%; the process can improve the efficiency of the flame retardant, and the obtained nylon composite material exhibits better flame retardant property, better impact resistance and better tensile strength.
    公开号:BE1027332B1
    申请号:E20205714
    申请日:2020-10-14
    公开日:2021-08-27
    发明作者:Feipeng Cai；Bo Jiang；Bo Wang；Guilin Jiang；Xianzhong Qin
    申请人:Energy Res Inst Shandong Academy Sciences；
    IPC主号:
    专利说明:

    Halogen-free flame retardant reinforced nylon material and preparation process and applications
    TECHNICAL FIELD The present invention relates to the field of nylon composite material preparation technology, in particular a halogen-free flame retardant reinforced nylon material and its preparation process and applications.
    TECHNICAL BACKGROUND The information on the technical background part is given only to better understand the general context of the present invention and should not necessarily be taken as an acknowledgment or suggestion in any form meaning that this information is art. existing already known to those skilled in the art.
    Lenylon is an engineering plastic material with the widest and most numerous type range of applications. It exhibits good mechanical properties, heat resistance, abrasion resistance, chemical solvent resistance, self-lubricating property and flame retardant property. In addition, it exhibits good machinability and can be integrally machined into parts with complex structure and widely used in various fields. However, nylon has drawbacks such as high hygroscopicity, low impact resistance at low temperatures and in dry environments, which limit the range of applications of nylon materials.
    Polyolefin or polyolefin elastomer can be used as the toughness agent of nylon, which can be mixed with nylon to greatly overcome the disadvantages of nylon, such as high hygroscopicity and low impact resistance at low temperature. To improve the compatibility between a polar nylon and a non-polar toughness agent, when the polyolefin or the polyolefin elastomer is used as the toughness agent of the nylon, it is necessary to graft and modify the polyolefin or the polyolefin elastomer with a polar monomer (for example BE2020 / 5714 maleic anhydride), that is to say a polyolefin or a polyolefin elastomer grafted with maleic anhydride. The incorporation of polyolefin or polyolefin elastomer can greatly improve the low temperature impact resistance of nylon, but greatly reduce the flame retardant property of the material. This is because the oxygen index (LOI) of polyethylene is 17, the flame retardation degree of UL94 is HB, the oxygen index of pure nylon is 30, and the retardation degree of flame of UL94 is V2, therefore, the flame retardant degree of reinforced nylon is less than V2, which is difficult to meet the requirements on flame retardant property of VO for many applications. The incorporation of the flame retardant improves the flame retardant property of nylon, and the traditional halogen flame retardant is gradually being replaced by the halogen free ones with more attention to safety and environmental concerns.
    CN 1854191A (Halogen-free flame-retardant reinforced nylon 6 and nylon 66 alloy) discloses a halogen-free flame-retardant reinforced nylon 6 and nylon 66 alloy and its preparation process, the process of mixing 30-65 parts of nylon 6 , 1-20 parts toughness agent, 0.1-15 parts flame retardant A, 0.1-15 parts flame retardant B, 0.1-2 parts incarbonization agent, 0, 1-1 part antioxidant, 0.1-1 part anti-ultraviolet agent in high speed mixer for 2-5 minutes, then extrude and granulate at 180-260 ° C and screw speed 180 -600 rpm to obtain the alloy with an impact resistance of 140-150 J / m and a flame retardant degree of VO.
    CN 101074316A (Process for Preparing Heavy Duty Flame Retardant Composite Modified Nylon Mother Material) discloses a process for preparing high strength and flame retardant composite modified nylon mother material which comprises mixing 1-5 parts nylon, 70-80 parts compatible toughness agent, 20-30 parts toughness agent, 70-135 parts flame retardant, 1-3 parts antioxidant and 0.5-1.5 parts of dispersing agent, then extrude and granulate at 140-220 ° C and at a screw speed of 30 rpm to obtain said mother material with BE2020 / 5714 flame retardant degree of VO.
    CN 107129679A (Reinforced Modified Flame Retardant Nylon Corrugated Hose) describes a modified and reinforced flame retardant nylon corrugated hose and its preparation process, the preparation process consisting of mixing 100 parts nylon, 5-10 parts toughness agent , 10-20 parts of flame retardant and 5-15 parts of additives, then extrude in special high temperature equipment to obtain said corrugated pipe with flame retardant degree of V2. It can be seen from the existing patents on the preparation of flame retardant reinforced nylon composite materials that the inventors carried out the preparations by mixing the nylon, toughness agent, flame retardant and additives in. one step, then extruding and granulating.
    There are many disadvantages: 1), Due to the toughness agent is more combustible than nylon, for the material obtained by one-step mixing and granulation, the flame retardant is dispersed throughout the material and the nylon phase and toughness agent phase are under the same protection of flame retardant, when the material ignites, the toughness agent is under insufficient protection of flame retardant and more combustible than nylon, for example Accordingly, the composite materials thus obtained exhibit poor flame retardant property, and to improve the degree of flame retardation, it is necessary to increase the content of the flame retardant, which will reduce mechanical properties; 2), because the viscosity of the melt toughness agent phase is higher than the nylon phase, it is difficult for a large volume of the flame retardant to enter the toughening agent phase. high viscosity toughness during extrusion, which makes the flame retardant more dispersed in low viscosity nylon phase, moreover, the flame retardant degree of nylon phase is higher than that of nylon phase. toughness agent, the more combustible toughness agent phase has a lower flame retardant concentration than the less combustible nylon phase, therefore, for the composite materials thus prepared, it is difficult to ensure reasonable distribution concentration of flame retardant in nylon phase and toughness agent phase, which makes fuel efficiency low.
    BE2020 / 5714 DESCRIPTION OF THE INVENTION In order to solve the above problems in the existing techniques, the present invention aims to provide a halogen-free flame retardant reinforced nylon material and its method of preparation and applications.
    To solve the above problems, the technical solution according to the present invention is as follows: A process for preparing a halogen-free flame retardant reinforced nylon, comprising: mixing a part of the flame retardant with the toughness agent and granulating to mix the flame retardant well in the toughness agent phase, then mix the resulting granules with the nylon, the rest of the flame retardant, the lubricant and the antioxidant to disperse the flame retardant well on the surface of the particles. The toughness agent and in the nylon phase, in order to reasonably distribute flame retardant in the material, and granulate to obtain a halogen-free flame retardant reinforced nylon composite material.
    The preparation process according to the present invention is carried out in two stages, the first stage consists in first mixing a part of the flame retardant with the toughness agent and granulating to well pre-mix the flame retardant in the phase d. 'toughness agent, so that the toughness agent can be protected by an appropriate volume of the flame retardant, the second step is to mix the obtained granules with the rest of the flame retardant, so that the surface of the obtained granules is covered again of the flame retardant and the toughness agent is more protected by the flame retardant, and the concentration of the flame retardant can be reasonably distributed in the nylon phase, which ultimately improves the property. flame retardant composite material; in the first step, respectively mixing and dispersing the flame retardant and toughness agent to mix and disperse the flame retardant and toughness agent with each other and provide anti-flame protection in phase l 'toughness agent, then mix the granules obtained with the rest of the flame retardant, BE2020 / 5714 so that the surface of the granules obtained is covered with the flame retardant and the flame retardant is homogeneously dispersed in the nylon phase , which can reasonably optimize the concentration of the flame retardant in the whole composite material, more reasonable distribute the concentration of the flame retardant in the nylon phase, in the nylon phase and on the surface of the material. toughness agent and improve the performance of flame retardant.
    In certain embodiments, for the granulation in the first step, the flame retardant used represents 50-80% by weight of the flame retardant, and preferably 50-60%.
    In the present invention, the proportion by weight of the flame retardant used in the first and second steps of the two-step process is obtained by studies, in order to distribute the flame retardant more reasonable and improve the efficiency of the flame retardant.
    In some embodiments, the proportion by weight of each raw material is: 5-84.85 parts of nylon, 5-20 parts of toughness agent, 10-60 parts of flame retardant, 0.1-3 parts lubricant and 0.1-2 part antioxidant.
    Preferably, 39-68 parts nylon, 5-20 parts toughness agent, 10-60 parts flame retardant, 0.5-3 parts lubricant and 0.5-2 part antioxidant.
    Compared to the existing composition, the composition, the proportions of the components and the method of preparation according to the present invention are different, each component being fully used.
    In some embodiments, the granulation in the first step consists of mixing, extruding, pulling, cooling, drying and cutting to obtain granules.
    Preferably, the mixing time is 25-35 min, the extrusion temperature is 110-150 ° C, the rotational speed of the main screw is 10-100 rpm, and the rotational speed of the main screw. screw feed is 10-70 rpm.
    In some embodiments, the granulation in the second step consists of mixing, extruding, pulling, cooling, drying and cutting.
    Preferably, the mixing time is 25-35min, the extrusion temperature is 220-380 ° C, the main screw rotational speed is 10-600 rpm, and the screw rotational speed is power is 10-70 rpm. PEÉDEO BTE In certain embodiments, the nylon is one selected from nylon 6, nylon 66, nylon 46, nylon 610, nylon 612, nylon 9, nylon 11, nylon 12, nylon 1010, nylon 1012, nylon 1212 or mixtures thereof.
    In some embodiments, the toughness agent is one selected from the polyolefin grafted with maleic anhydride, such as low density polyethylene grafted with maleic anhydride (LDPE), high density polyethylene grafted with maleic anhydride. maleic anhydride (HDPE), linear low density polyethylene grafted maleic anhydride (LLDPE), polypropylene grafted acid anhydride (PP), ethylene / propylene copolymer grafted maleic anhydride (EPR), copolymer ethylene / octene grafted with maleic anhydride (POE) and ethylene propylene rubber grafted with maleic anhydride (EPDM) or mixtures thereof.
    In some embodiments, the flame retardant is one selected from magnesium hydroxide (Mg (OH)), aluminum hydroxide (Al (OH) 3), antimony trioxide (Sb203) , zinc borate (ZnB407), red phosphorus, coated red phosphorus, microcapsulated red phosphorus, melamine cyanurate (MCA), melamine polyphosphate (MPP), melamine pyrophosphate (MP), polyphosphate d ammonium (APP), pentaerythritol, aluminum dimethylphosphinate, aluminum diethylphosphinate, aluminum dipropylphosphinate, aluminum dibutylphosphinate, aluminum diphenylphosphinate or mixtures thereof.
    In some embodiments, the lubricant is one selected from polyethylene wax, microcrystalline paraffin, liquid paraffin, solid paraffin, chlorinated paraffin, oxidized polyethylene wax, silicone oil, acid stearic acid, butyl stearate, calcium stearate, zinc stearate, oleic acid amide, ethylidene bisstearamide, erucamide and glyceryl trihydroxystearate or mixtures thereof.
    In some embodiments, the antioxidant is one selected from [tetras (3,5-di-tert-butyl-4-hydroxyphenyl) propionic] pentaerythritol ester (antioxidant 1010), 3- (3,5- octadecyl di-tert-butyl-4-hydroxy) acrylate (antioxidant 1076), N,
    N'-bis- (3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylene diamine PEEDO BTE (antioxidant 1098), 2,6-di-tert-butyl-4-methylphenol ( antioxidant 264), 2,4,6-tri-tert-butylphenol (antioxidant 246) and phosphite (2,4-di-tert-butylphenyl) triester (antioxidant 168) or mixtures thereof. A composite material is obtained by the above preparation process. The above nylon composite material is used in fields such as automobiles, electronic devices, machinery, rail transport, sports equipment, etc. The composite material obtained according to the present invention has the advantages such as environmental friendliness, good flame retardant property and high toughness. The present invention has the following beneficial effects: The beneficial effect of the present invention is to prepare a flame retardant reinforced nylon using a two-step process, which achieves a reasonable distribution of the flame retardant in the nylon phase and the toughness agent phase, the more combustible tougher phase having a higher flame retardant concentration and the less combustible nylon phase having a lower relative flame retardant concentration, thereby improving the efficiency of the flame retardant. flame.
    The invention solves the problem of low efficiency of the existing flame retardant through a simple and efficient process, and has better development prospects and lower cost compared to using existing high efficiency flame retardants to improve the performance. flame retardant effect.
    The halogen-free flame retardant reinforced nylon prepared according to the present invention has better flame retardant property, better impact resistance and better tensile strength, with a flame retardant degree of V2, impact resistance to notched Charpy of 6.8-7.3 kJ / m2 and improved tensile strength, which improves its application performance and widens its range - of applications.
    EMBODIMENTS It should be noted that the detailed description below is only illustrative in order to better understand the present invention. It should be noted that, unless otherwise indicated, all technical and scientific terms used in the present invention have the same meaning as those well known to those skilled in the art. It should be noted that the terms used here are intended to describe embodiments, instead of limiting the illustrative embodiment according to the present application. Unless otherwise indicated, the singular form includes the plural, furthermore, the words used herein "include" and / or "include", indicate the presence of the characteristic, step, work, device, component and / or the combination of these. The present invention can be described in more detail below via the examples. Example 1 Weigh nylon 6, POE grafted with maleic anhydride, magnesium hydroxide, calcium stearate and antioxidant 1098 in functions of corresponding parts by weight, i.e. 39 parts of nylon, 10 parts of POE grafted with 'maleic anhydride, 50 parts of magnesium hydroxide, 0.5 parts of calcium stearate and 0.5 parts of antioxidant
    1098. Mix the grafted POE of maleic anhydride and 50% (parts by weight, the same below) of magnesium hydroxide in a high speed mixer for 30 minutes, then transfer the mixture to the hopper of an extruder and extrude under the following conditions: the temperature of 120 ° C -140 ° C, the main screw rotational speed of 70 rpm and the feed screw rotational speed of 40 rpm, then pull, cooling, drying and cutting the extruded product to obtain granules; mix the above granules, nylon 6, calcium stearate and 1098 antioxidant in the high speed mixer for 30 minutes, then transfer the mixture to the extruder hopper and extrude under the following conditions: temperature of 200 ° C-230 ° C, the main screw rotating speed of 100 rpm and the feeding screw rotating speed of 50 rpm, then pull, cool, dry and cut the extruded product to obtain a halogen-free flame retardant reinforced nylon composite material. BE2020 / 5714 Example 2 Similar to Example 1, the difference is that, mix the POE grafted with maleic anhydride and 60% (parts by weight, the same below) of magnesium hydroxide in a mixer high speed for 30 minutes.
    Example 3 Similar to Example 2, the difference is that, mix the POE grafted with maleic anhydride and 70% (parts by weight, the same below) of magnesium hydroxide in a high speed mixer for 30 minutes.
    Example 4 Similar to Example 2, the difference is that, mix the POE grafted with maleic anhydride and 80% (parts by weight, the same below) of magnesium hydroxide in a high speed mixer for 30 minutes. Comparison Example 1 Weigh Nylon 6 (Xinhui Meida, M52800, the same below), maleic anhydride-grafted POE (Kehua Saibang New Materials SA of Shandong, KE1, the same below), magnesium hydroxide as flame retardant (Baodi Chemical Industry Company of Shanghai, the same below), calcium stearate as a lubricant (Kaixiang Chemical Industry Company, the same below) and antioxidant 1098 (BASF, the same below) according to the corresponding parts by weight, i.e. 29 parts of nylon, 10 parts of POE grafted with maleic anhydride, 60 parts of magnesium hydroxide, 0.5 part of calcium stearate and 0.5 part of antioxidant 1098, mix the above components in a high speed mixer for 30 minutes, then transfer the mixture to the hopper of an extruder and extrude under the following conditions: the temperature of 200 ° C-230 ° C, the main screw rotational speed of 100 rpm and the screw rotational speed 50 rpm feed, then pull, cool, dry and cut the extruded product to obtain a halogen-free flame retardant reinforced nylon composite material.
    The performance of the flame retardant reinforced nylon composite materials in BE2020 / 5714 Examples 1 to 4 and Comparison Example 1 are shown in Table 1: Table 1 Performance of the Composite Materials Retarder | Retarder | Process of | Resistance | Resistance | Degree of flame | of flame | shock preparation | flame retardant used in tension in to of flame parts MPa the notched / UL94 Charpy in kJ / m Example of | Hydroxide Process in 50.4 3.2 vo comparison of a step 1 magnesium Example 1 | Hydroxide 50 Magnesium two-step 56.2 V2 process: first mix 50% flame retardant Example 2 | Hydroxide 50 Magnesium Two-Step 55.9 7.1 Vl Process: First Mix 60% Flame Retardant Example 3 | Hydroxide 50 Magnesium two-step 57.3 vo process: first mix 70% flame retardant Example 4 | Hydroxide 50 Magnesium two-step 56.5 7.3 vo process: first mix 80% flame retardant By comparing Examples 1 to 4 and Comparison Example 1, it can be seen that for the composite material of flame retardant reinforced nylon 6 prepared by the one-step process in which 60 parts flame retardant is added, the flame retardant degree is VO, the tensile strength is 50 MPa, and the impact strength is 3.2 kJ / m2. To prepare the composite material by the two-step process, the addition of 50 parts of flame retardant achieves a flame retardant degree of VO if the flame retardant is reasonably distributed in the nylon phase and the toughness agent phase (for example the content of flame retardant in the toughness agent phase is 70%), in addition, due to reduction in the volume of the flame retardant used, the mechanical properties of the material composite are better than those of the one-step process, the tensile strength is more than 55 MPa and the impact resistance is more than 6.8 kJ / m2. Example 5 Weigh nylon 6, POE grafted with maleic anhydride, aluminum diethylphosphinate, melamine cyanurate, calcium stearate and antioxidant 1098 in functions of corresponding parts by weight, i.e. 68 parts of nylon, 10 parts of POE grafted with maleic anhydride, 14 parts of aluminum diethylphosphinate, 7 parts of melamine cyanurate, 0.5 parts of calcium stearate and 0.5 parts of 1098 antioxidant.
    Mix the POE grafted with maleic anhydride and 50% (parts by weight, the same here- BE2020 / 5714 after) of composite flame retardant (aluminum diethylphosphinate and melamine cyanurate) in a high speed mixer for 30 minutes, then transfer the mixture to the hopper of an extruder and extrude under the following conditions: the temperature of 120 ° C -140 ° C, the main screw rotational speed of 70 rpm and the screw rotational speed feed of 40 rpm, then pulling, cooling, drying and cutting the extruded product to obtain granules; mix the above granules, nylon 6, calcium stearate and 1098 antioxidant in the high speed mixer for 30 minutes, then transfer the mixture to the extruder hopper and extrude under the following conditions: temperature of 200 ° C -230 ° C, the main screw rotating speed of 100 rpm and the feeding screw rotating speed of 50 rpm, then pull, cool, dry and cut the extruded product to obtain a halogen-free flame retardant reinforced nylon composite material.
    Example 6 Similar to Example 7, the difference is that, mix the POE grafted with maleic anhydride and 60% composite flame retardant in a high speed mixer for 30 minutes. Example 7 Similar to Example 7, the difference is that, mix the POE grafted with maleic anhydride and 70% composite flame retardant in a high speed mixer for 30 minutes. Example 8 Similar to Example 7, the difference is that, mix the POE grafted with maleic anhydride and 80% composite flame retardant in a high speed mixer for 30 minutes. Comparison example 2 Weigh Nylon 6, POE grafted with maleic anhydride, aluminum diethylphosphinate as flame retardant (Opry from Qingdao, the same below), melamine cyanurate as flame retardant (Institute of Fine Chemistry of Sichuan, the same BE2020 / 9714 below), calcium stearate and antioxidant 1098 according to the corresponding parts by weight, i.e. 59 parts of nylon, 10 parts of POE grafted with maleic anhydride, 20 parts of diethylphosphinate aluminum, 10 parts melamine cyanurate, 0.5 part calcium stearate and 0.5 part antioxidant 1098, mix them in a high speed mixer for 30 minutes, then transfer the mixture to the hopper. an extruder and extrude under the following conditions: the temperature of 200 ° C-230 ° C, the rotational speed of the main screw of 100 rpm and the rotational speed of the feed screw of 50 rpm, then pull, cool, dry and cut the extruded product to obtain a halogen-free flame retardant reinforced nylon composite material.
    The performance of the flame-retardant reinforced nylon composite materials composed of nitrogen and phosphorus in Examples 5 to 8 and Comparison Example 2 are shown in Table 2: Table 2 Performance of the composite materials Retarder | Delayateu | Process | Resistance | Resistance | Degree of flame r from e to € to flame retardation | preparation | traction shocks at n of used in n in MPa | the notched | flame parts e Charpy / UL94 in kJ / m Example of | Phosphinate / MC 30 Process 60.3 12.1 vo comparaiso A in one n2 step Example 5 | Phosphinate / MC 21 Two-step 65.4 17.5 V2 A process: mix first
    50% flame retardant Example 6 | Phosphinate / MC 21 Process 64.8 16.8 Vl A in two steps: first mix 60% flame retardant Example 7 | Phosphinate / MC 21 Process 66.7 17.2 VO A in two steps: first mix 70% flame retardant Example 8 | Phosphinate / MC 21 Process 65.3 18.0 vo A in two steps: first mix 80% LL retarder let 11 By comparing Examples 5 to 8 and Comparison Example 2, it can be seen that for the flame retardant reinforced nylon 6 composite material prepared by the one-step process in which 30 parts of composite flame retardant are added, the flame retardant degree is VO, the tensile strength is 60MPa, and the impact resistance is 12 kJ / m ”. To prepare the composite material by the two-step process, the addition of 21 parts of flame retardant achieves a flame retardant degree of VO if the flame retardant is reasonably distributed in the nylon phase and the toughness agent phase (e.g. the content of flame retardant in the toughness agent phase is
    70%), in addition, due to the reduction in the volume of the flame retardant used, the mechanical properties of the composite material are better than that of the one-step process, the tensile strength is more than 65 MPa, and the impact resistance is greater than 17 kJ / m °, this is similar to the conclusions of Examples 1 to 4. According to the present invention, 50-60% of flame retardant is added at the first stage, the flame retardant property of the obtained composite material is further improved, it can be said that the volumes of the flame retardant added at the first and second stages can significantly influence the flame retardant property of the composite material.
    The examples below are given by way of example preferably, rather than limiting the present invention, and modifications and variations on the present invention by those skilled in the art are of course possible.
    All modifications, replacements and equivalent improvements which respect the spirit and principles of the present invention should be included within the scope of the protection of the present invention.
    权利要求:
    Claims (10)
    [1]
    1. Process for the preparation of a halogen-free flame retardant reinforced nylon, characterized in that it comprises: mixing a part of the flame retardant with the tenacity agent and granulating, then mixing the granules obtained with the nylon, the rest of the flame retardant, lubricant and antioxidant and granulate to obtain a halogen-free flame retardant reinforced nylon composite material.
    [2]
    2. A process for preparing a halogen-free flame retardant reinforced nylon according to claim 1, characterized in that, for the granulation in the first step, the flame retardant used represents 50-80%, and preferably 50-60%.
    [3]
    3. Process for the preparation of a halogen-free flame retardant reinforced nylon according to claim 1, characterized in that the proportion by weight of each raw material is: 5-84.8 parts of nylon, 5-20 parts of agent. toughness, 10-60 parts flame retardant, 0.1-3 parts lubricant and 0.1-2 part antioxidant; Preferably, 39-68 parts nylon, 5-20 parts toughness agent, 10-60 parts flame retardant, 0.5-3 parts lubricant and 0.5-2 part antioxidant.
    [4]
    4. A method of preparing a halogen-free flame retardant reinforced nylon according to claim 1, characterized in that, the granulation in the first step consists in mixing, extruding, drawing, cooling, drying and cutting to obtain granules; preferably, the mixing time is 25-35 min, the extrusion temperature is 110-150 ° C, the main screw rotational speed is 10-100 rpm, and the rotational speed of the screw feed is 10-70 rpm; or, the second step granulation involves mixing, extruding, pulling, cooling, drying and cutting; preferably, the mixing time is 25-35min, the extrusion temperature is 220-380 ° C, the main screw rotational speed is 10-600 rpm, and the screw rotational speed is power is 10-70 rpm.
    [5]
    5. A method of preparing a halogen-free flame retardant reinforced nylon according to claim 1, characterized in that the nylon is one selected from nylon 6, nylon 66, nylon 46, nylon 610, nylon 612. , nylon 9, nylon 11, nylon 12,
    nylon 1010, nylon 1012, nylon 1212 or mixtures thereof. PEEDO BTE
    [6]
    6. A process for preparing a halogen-free flame retardant reinforced nylon according to claim 1, characterized in that the polyolefin grafted with maleic anhydride is one selected from low density polyethylene grafted with maleic anhydride, polyethylene with maleic anhydride. high density maleic anhydride graft, linear low density polyethylene graft maleic anhydride, acid anhydride graft polypropylene, maleic anhydride graft ethylene / propylene copolymer, anhydride graft ethylene / octene copolymer maleic and ethylene propylene rubber grafted with maleic anhydride or mixtures thereof.
    [7]
    7. A process for preparing a halogen-free flame retardant reinforced nylon according to claim 1, characterized in that the flame retardant is one selected from magnesium hydroxide, aluminum hydroxide, trioxide. antimony, zinc borate, red phosphorus, coated red phosphorus, microcapsulated red phosphorus, melamine cyanurate, melamine polyphosphate, melamine pyrophosphate, ammonium polyphosphate, pentaerythritol, aluminum dimethylphosphinate , aluminum diethylphosphinate, aluminum dipropylphosphinate, aluminum dibutylphosphinate, aluminum diphenylphosphinate or mixtures thereof.
    [8]
    8. A method of preparing a halogen-free flame retardant reinforced nylon according to claim 1, characterized in that the lubricant is one selected from polyethylene wax, microcrystalline paraffin, liquid paraffin, solid paraffin, paraffin. chlorinated, oxidized polyethylene wax, silicone oil, stearic acid, butyl stearate, calcium stearate, zinc stearate, oleic acid amide, ethylidene bisstearamide, erucamide and glyceryl trihydroxystearate or mixtures thereof; or, the antioxidant is one selected from [tetras (3,5-di-tert-butyl-4-hydroxyphenyl) propionic] pentaerythritol ester, = 3- (3,5-di-tert-butyl-4-hydroxy ) octadecyl acrylate, N, N'-bis- (3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylene diamine, 2,6-di-tert-butyl-4-methylphenol, 2,4,6-tri-tert-butylphenol and (2,4-di-tert-butylphenyl) phosphite triester or mixtures thereof.
    in | a EE BE2020 / 5714
    [9]
    9. Nylon composite material obtained by the preparation process according to any one of claims 1 to 8.
    [10]
    10. Applications of the nylon composite material according to claim 9 in fields such as automobiles, electronic devices, machines, rail transport, sports equipment.
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    同族专利:
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    引用文献:
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    WO2004113437A1|2003-06-23|2004-12-29|Basell Poliolefine Italia S.P.A.|Engineering thermoplastic compositions containing oxidized olefin polymer coupling agents|
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    法律状态:
    2021-09-30| FG| Patent granted|Effective date: 20210827 |
    优先权:
    申请号 | 申请日 | 专利标题
    CN201910979797.7A|CN110615987A|2019-10-15|2019-10-15|Halogen-free flame-retardant toughened nylon and preparation method and application thereof|
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