• 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:
    low-odor, high-heat-resistant and flame-retardant reinforced PET composite material and a preparation method thereof are provided, belonging to the field of PET engineering plastics. The composite material comprises the following substances in parts by weight: 45-50 parts of PET, 18-22 parts of flame retardant, 3-5 parts of nucleating agent, 3-5 parts of compatilizer, 0.5-1 parts of crystallization accelerator, 0.2-0.8 parts of antioxidant, and 28-32 parts of glass fiber. The advantages of the present invention are: l. A crystallization accelerator is added to the formula of the present invention, improving the processability of the product of the present invention and reducing the odors of materials, 2. A nucleating agent is added to the formula of the present invention to stabilize the heat resistance of the product of the present invention, 3. The processing technology of the present invention is optimized, so that the product of the present invention has excellent mechanical properties, and fully meets the requirements of replacing steel with plastics.
    公开号:NL2026350A
    申请号:NL2026350
    申请日:2020-08-27
    公开日:2021-08-30
    发明作者:Li Shujie；Zhao Mengxin；Ma Delin；Wang Hong
    申请人:Shandong Dawn Polymer Co Ltd；
    IPC主号:
    专利说明:

    Title of the Invention Low-Odor, High-Heat-Resistant and Flame-Retardant Reinforced PET Composite Material and Preparation Method Thereof Description Field of the Invention The present invention belongs to the field of PET engineering plastics, and specifically relates to a low-odor, high-heat-resistant and flame-retardant reinforced PET composite material and a preparation method thereof.
    Background of the Invention With the development of society, the consumption of resources is increasing, and people pay more and more attention to energy conservation and consumption reduction.
    Nowadays, many enterprises in the manufacturing industry are trying to reduce the weight of products due to the pressure of energy consumption and manufacturing costs.
    Currently, the hot topic is how to meet the requirement of weight reduction while satisfying the conditions of use.
    The replacement of steel with plastics can solve this problem well.
    Polyethylene terephthalate (PET) is one of the five major engineering plastics.
    PET has excellent electrical insulation, heat resistance and chemical resistance, so its applications in the fields of fiber, film and beverage bottles are relatively mature.
    However, the slow crystallization speed of PET seriously affects its heat resistance stability, and affects the gloss and mechanical properties of products, which greatly limits the application of PET in the field of engineering plastics.
    Particularly, the household appliance industry has strict requirements on materials.
    Not only must the materials have good mechanical properties, but some components have higher requirements for flame retardancy, odor and appearance.
    At present, there are glass fiber reinforced flame-retardant PET materials on the market, but their heat-resistant instability, high odor after heating and other problems have caused them to be less used in the household appliance market.
    One of the primary issues that need to be solved when PET is applied to the household appliance industry is how to improve the heat resistance and odor of the flame-retardant reinforced PET materials while ensuring their mechanical properties.
    Summary of the Invention 1
    The present invention provides a low-odor, high-heat-resistant and flame- retardant reinforced PET composite material and a preparation method thereof to solve the defects in the prior art.
    The present invention is realized through the following technical solutions: The advantages of the present invention are:
    1. A crystallization accelerator is added to the formula of the present invention, improving the processability of the product of the present invention and reducing the odors of materials,
    2. A nucleating agent is added to the formula of the present invention to stabilize the heat resistance of the product of the present invention;
    3. The processing technology of the present invention is optimized, so that the product of the present invention has excellent mechanical properties, and fully meets the requirements of replacing steel with plastics.
    Detailed Description of the Embodiments In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Apparently, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without any creative efforts shall fall within the protection scope of the present invention.
    Example 1 Step 1: 45 Kg of film-grade high flow PET, 19 Kg of brominated epoxy resin, 3 Kg of sodium ionic EEMAA copolymer, 4 Kg of GMA-grafted terpolymer, 0.6 Kg of long-chain linear saturated sodium carboxylate, 0.4 Kg of antioxidant (hindered phenol antioxidant and phosphite antioxidant were weighted at a ratio of 2:1), and 30 Kg of special glass fiber for polyester (Taishan brand) were accurately weighed according to the proportion; Step 2: the film-grade high flow PET, brominated epoxy resin, sodium ionic E/MAA copolymer, GMA-grafted terpolymer, long-chain linear saturated sodium 2 carboxylate, and antioxidant were sequentially added to a tinting machine, and mixed at a speed of 150 r/min for 4 min to form a premix; Step 3: the premix of step 2 was poured into a main feeding hopper of a twin- screw extruder, the glass fiber was poured into a side feeding hopper of the twin- screw extruder, the temperature of the twin-screw extruder was 270°C, the revolving speed of the main machine was 300 r/min, and extrusion and granulation were performed to obtain a finished product.
    Comparative Example 1 Step 1: 45 Kg of film-grade high flow PET, 19 Kg of brominated epoxy resin, 3 Kg of sodium ionic E/MAA copolymer, 4 Kg of GMA-grafted terpolymer, 0.4 Kg of antioxidant (hindered phenol antioxidant and phosphite antioxidant were weighted at a ratio of 2:1), and 30 Kg of special glass fiber for polyester (Taishan brand) were accurately weighed according to the proportion; Step 2: the film-grade high flow PET, brominated epoxy resin, sodium ionic E/MAA copolymer, GMA-grafted terpolymer, and antioxidant were sequentially added to a tinting machine, and mixed at a speed of 150 r/min for 4 min to form a premix; Step 3: the premix of step 2 was poured into a main feeding hopper of a twin- screw extruder, the glass fiber was poured into a side feeding hopper of the twin- screw extruder, the temperature of the twin-screw extruder was 270°C, the revolving speed of the main machine was 300 r/min, and extrusion and granulation were performed to obtain a finished product.
    Comparative Example 2 Step 1: 45 Kg of film-grade high flow PET, 19 Kg of brominated epoxy resin, 4 Kg of GMA-grafted terpolymer, 0.6 Kg of long-chain linear saturated sodium carboxylate, 0.4 Kg of antioxidant (hindered phenol antioxidant and phosphite antioxidant were weighted at a ratio of 2:1), and 30 Kg of special glass fiber for polyester (Taishan brand) were accurately weighed according to the proportion; Step 2: the film-grade high flow PET, brominated epoxy resin, GMA-grafted terpolymer, long-chain linear saturated sodium carboxylate, and antioxidant were sequentially added to a tinting machine, and mixed at a speed of 150 r/min for 4 min to form a premix; Step 3: the premix of step 2 was poured into a main feeding hopper of a twin- screw extruder, the glass fiber was poured into a side feeding hopper of the twin- 3 screw extruder, the temperature of the twin-screw extruder was 270°C, the revolving speed of the main machine was 300 r/min, and extrusion and granulation were performed to obtain a finished product.
    Comparative Example 3 Step 1: 45 Kg of film-grade high flow PET, 19 Kg of brominated epoxy resin, 3 Kg of sodium ionic E/MAA copolymer, 4 Kg of GMA-grafted terpolymer, 0.6 Kg of long-chain linear saturated sodium carboxylate, 0.4 Kg of antioxidant (hindered phenol antioxidant and phosphite antioxidant were weighted at a ratio of 2:1), and 30 Kg of special glass fiber for polyester (Taishan brand) were accurately weighed according to the proportion; Step 2: the film-grade high flow PET, brominated epoxy resin, sodium ionic E/MAA copolymer, GMA-grafted terpolymer, long-chain linear saturated sodium carboxylate, and antioxidant were sequentially added to a tinting machine, and mixed at a speed of 150 r/min for 4 min to form a premix; Step 3: the premix of step 2 was poured into a main feeding hopper of a twin- screw extruder, the glass fiber was poured into a side feeding hopper of the twin- screw extruder, the temperature of the twin-screw extruder was 250°C, the revolving speed of the main machine was 240 r/min, and extrusion and granulation were performed to obtain a finished product.
    After testing the properties of Example 1 and Comparative Examples 1-3, the results were shown in Table 1: Properties Unit Test
    I Cr Lc
    KEIJ dng | Ge [Bin] 9 | |E ¥9 Simply supported | KJ/m | 1S0179 8.2 7.6 6.8 beam notch impact Thermal °C 1.8MPa 201 183 156 192 deformation temperature veer | sw | vo | vo | va | wa 4 a on | Jes] ww | ww Table 1 By comparing the property data of Example 1 with the property data of Comparative Examples 1-3 in Table 1, the crystallization accelerator, i.e., the long- chain linear saturated sodium carboxylate, was not added in Comparative Example 1, the test property of odor was worse than that of Example 1; the nucleating agent, i.e, the sodium ionic E/MAA copolymer, was not added in Comparative Example 2, the properties were obviously worse than those of Example 1 in property test of bending strength, bending modulus, simply supported beam notch impact, thermal deformation temperature, and vertical combustion; and the conditions in the preparation method of Comparative Example 3 were different from those of Example 1, the properties were obviously worse than those of Example 1 in property test of tensile strength, bending strength, bending modulus, simply supported beam notch impact, thermal deformation temperature, and vertical combustion. It can prove that the addition of the crystallization accelerator in the present invention improves the residue of small molecular substances and effectively reduces the odor of materials; the addition of the nucleating agent improves the heat resistance of the materials and also contributes to the improvement on flame retardancy; the adjustment of the processing technology has a relatively obvious impact on the mechanical properties and odor of the materials; and therefore, the application field of the PET composite material of the present invention can be expanded.
    Finally, it should be noted that the above embodiments are only for explaining, but not limiting, the technical solutions of the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understood that the technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently substituted; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of embodiments of the present invention.
    5
    权利要求:
    Claims (9)
    [1]
    1. Low-odour, high-heat-resistant and flame-retardant reinforced PET composite material, comprising the following substances by weight: 45-50 parts PET 18-22 parts flame retardant 3-5 parts nucleating agent 3-5 parts compatiliser 0.5-1 parts crystallization accelerator 0.2- 0.8 parts antioxidant 28-32 parts fiberglass
    [2]
    The low odour, high heat resistant and flame retardant reinforced PET composite material according to claim 1, wherein the PET is film grade PET with high fluidity.
    [3]
    The low-odour, high-heat-resistant and flame-retardant reinforced PET composite material according to claim 1, wherein the flame retardant is brominated epoxy resin.
    [4]
    The low odor, high heat resistance and flame retardant reinforced PET composite material according to claim 1, wherein the nucleating agent is sodium ionic E/MAA copolymer.
    [5]
    The low odour, high heat resistant and flame retardant reinforced PET composite material according to claim 1, wherein the compatiliser is GMA grafted terpolymer.
    [6]
    The low-odour, high-heat and flame-retardant reinforced PET composite material according to claim 1, wherein the crystallization accelerator is linear saturated sodium carboxylate having a carbon chain length of C28-C32.
    [7]
    The low odor, high heat resistance and flame retardant reinforced PET composite material according to claim 1, wherein the antioxidant is composed of hindered phenol antioxidant and phosphite antioxidant in a mass ratio of 1:0.5.
    [8]
    The low-odour, high-heat-resistant and flame-retardant reinforced PET composite material according to claim 1, wherein the glass fiber is special glass fiber for polyester.
    [9]
    A manufacturing method for the low-odor, high-heat-resistant and flame-retardant reinforced PET composite material, comprising the following steps: Step 1: Accurately weighing PET, flame retardant, nucleating agent, compatiliser, crystallization accelerator, antioxidant, and glass fiber according to the ratio;
    step 2: sequentially adding the PET, the vapor retarder, the nucleating agent, the compatilizer, the crystallization accelerator, and the antioxidant to a staining machine, and mixing at a speed of 100-200 rpm for 2-5 minutes to prepare a premix form; and step 3: pouring the premix from step 2 into a main loading hopper of a twin screw extruder, and pouring the glass fiber into a side loading hopper of the twin screw extruder, wherein the temperature of the twin screw extruder is 270°C is , and the rotational speed of the main machine is 300 revolutions per minute; and performing extrusion and granulation to obtain a finished product.
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5700857A|1993-12-28|1997-12-23|E. I. Du Pont De Nemours And Company|Flame resistant polyester resin composition|
    KR19990008048A|1995-04-26|1999-01-25|크리스로저에이취.|Polyester molding composition|
    CN102453313A|2011-09-20|2012-05-16|福建奥峰科技有限公司|High-temperature-resistance flame-retardation enhanced polyethylene terephthalate , preparation method thereof and purpose thereof|
    CN103113720B|2011-11-17|2016-01-06|上海金发科技发展有限公司|Flame-retardant PET resin combination with anti-yellowing function and preparation method thereof|
    CN102816414B|2012-04-09|2014-04-30|青岛海尔新材料研发有限公司|High heat-resistant fire-retardant reinforced polyethylene terephthalate composition and preparation method thereof|
    CN107513255A|2016-06-17|2017-12-26|广东聚石化学股份有限公司|A kind of 3D printing toughness reinforcing heat-resisting PET material and preparation method thereof|CN113248881A|2021-05-25|2021-08-13|青岛国恩科技股份有限公司|High-performance PET/PBT material for air-conditioner compressor junction box and preparation method thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN202010030888.9A|CN111100436A|2020-01-13|2020-01-13|Low-odor high-heat-resistance flame-retardant reinforced PETcomposite material and preparation method thereof|
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