• 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:
    METHOD FOR DRINKING GLASS-FIBER CANVAS by applying a polyvinyl chloride paste on one of its surfaces by means of a roller device and then gelling when heated, which is characterized by the fact that, with a purpose of increasing the strength of the canvas, using a vacuumized paste and applying it onto the surface of the canvas, the floor layer is covered with a 5 foot layer, and a 10 foot layer, 5, a layer should be applied. -120a and mapping is performed at a heating element temperature of 250-270 ° C.
    公开号:SU1153818A3
    申请号:SU813329452
    申请日:1981-09-02
    公开日:1985-04-30
    发明作者:Дост Герхард；Гербер Вальтер；Егер Эберхард；Мештер Эрвин；Вейс Рихард
    申请人:Динамит Нобель Аг (Фирма)；
    IPC主号:
    专利说明:

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    The invention relates to a method for processing porous textile tape materials, in particular to a method for impregnating glass fiber scrim. A known method of impregnation of porous textile tape material, for example glass fiber canvas, is once applied to one of its surfaces with a polyvinyl chloride paste in the form of a dispersion by means of a roller device at an angle of 45 ° C and then gelling of the soaked canvas L. The disadvantage of this method is that, as a result of uneven impregnation and the presence of air bubbles, the strength of the impregnated glass fiber canvas is not fully satisfactory. The purpose of the invention is to increase the strength of the impregnated glass fibers of the scrim. The goal is achieved in that according to the method of impregnating a glass fiber canvas by applying a polyvinyl chloride paste on one of its surfaces by means of a roller device and subsequent gelling, an evacuated polyvinyl chloride paste is used and applied on the surface of the canvas twice at an angle of 50-120 gouging, and the gel is applied at a temperature of the heating element 250-270 ° C. FIG. 1 and 2 shows the schemes of the roller device that implements the proposed method. I The device contains a feed roller 1, from which | A stack of fibrous canvas, a guide roller 2, a roll 3 dp of applying an evacuated polyvinyl chloride paste arranged with the possibility of immersion in a bath 4 with a vacuum paste 5, a squeegee 6, a further high guide roller 7, a further squeegee 8, a pair of rolls 9 and 10, and a further guide roll 11 with a squeegee 12 behind it. A pair of rolls 9 and tO are made or in the form of a guide roll and an additional roll for application, which can be placed into a further bath 13 with evacuated polyvinyl chloride Asta 5 (Figure 1) or in the form of two superposed rolls (2). If a pair of rolls 9 and 10 is made in the form of a roll for applying a roll 10 and a guide roll 11, a further guide roll 14 is located. If a pair of rolls are made in the form of two rolls opposite each other, a further blade 15 is installed behind the roll 10. Device it also contains dosing blades 16 and 17 located adjacent to the rolls 3 and 10 with the possibility of interaction with the roll surface. In accordance with FIG. 2, a paste thickening 19 is formed in front of the gap 18, used as the impregnated mass when the canvas is fed over the roll 10. In order to ensure that the corresponding 50-120 are applied at an angle of about 10–20, the relative position can be changed. Example 1. A glass fiber canvas weighing 45 g / m and 2 m wide, containing 15% by weight of formaldehyde-based resin as a binder, is impregnated with the help of a yarn system (Fig. 1) by applying a vacuum polyvinyl chloride paste containing, by weight.h .: loluch emulsion polymerization of polyvinyl chloride with a value of K 70, 150; di-iso-decylphthalate as a plasticizer 140; epoxidized soybean oil 6; a barium-cadmium stabilizer 9j means for protection against aging 1, a UV stabilizer 0.5, which is fed into the bath in such an amount that the roller for applying the paste can be immersed to a depth of 2-5 cm. Fiberglass canvas is passed through the device speed of 20 m / min. In this case, the circumference angle of the first roll for applying paste 50, and the circumference angle of the second roll for applying paste 120. Then the impregnated glass fiber canvas is gelling at 260 C. A dense and homogeneous glass fiber canvas soaked in 500 g / m is obtained, which does not contain air bubbles Canvas strength 14 N / mm.
    Example 2. Example 1 is repeated, with the difference that the impregnation is carried out by means of the device according to FIG. 2, the paste being applied twice twice at a girth angle of 120 °. You get a dense and homogeneous, impregnated with polyvinyl chloride fiberglass canvas weighing 500 g / m, which does not contain air bubbles. The strength of the canvas is 13.8 N / mm.
    Example 3. Example 1 is repeated with the difference that the process is carried out at an angle of girth of the first and second rolls for applying paste equal to 120 and 50, respectively. You get a glass fiber canvas weighing 500 g / m, having a strength of 14.2 N / mm. Air bubbles canvas does not contain.
    Example 4. Example 2 is repeated with the difference that the process is carried out at an angle of girth of a roller for applying paste 50. A glass fiber canvas weighing 500 g / m and having a strength of 13.5 N / mm is obtained. Air bubbles does not contain canvas,
    Example 5. Repeat example
    1 with the difference that the gelling is carried out at 25Q ° C. When etsm get fiberglass canvas, the strength of which is 13.8 N / mm. Air bubbles canvas does not contain mt.
    Example 6. Example 1 is repeated, with the difference that the gelling is carried out at 270 C. A glass fiber canvas is obtained, the strength of which is 14.1 N / mm. Air bubbles canvas does not contain
    Example 7 (according to the prototype). Example 1 is repeated, with the difference that for a 45 g / m glass fiber canvas and a width of
    2 m once applied non-vacuum polyvinyl chloride paste of the composition indicated in example 1 at a girth angle of 45 °. A glass fiber canvas having a strength of 8 N / mm is obtained.
    Example 8. Example 1 is repeated, with the difference that applying the paste twice is carried out at an angle of 45 ° C. At the same time receive fiberglass canvas, the strength of which is 9.5 N / mm.
    Example 9. Example 1 is repeated with the difference that the double application is carried out using a non-evacuated polyvinyl chloride paste. At the same time receive
    fiberglass canvas, the strength of which is 10.8 N / mm.
    Example 10. Example 1 is repeated, with the difference that the process of applying the evacuated PVC paste was carried out once at an angle of 120 °. A glass fiber canvas is obtained, the strength of which is 12.9 N / mm. Example 11. Gelation
    carried out at 240 ° C. A glass fiber canvas is obtained, the strength of which is 13.1 N / mm.
    EXAMPLE 12 Example 6 is repeated, with the difference that the gelation is carried out at 280 C. A glass fiber canvas is obtained, the strength of which is 14 N / mm.

    Comparison of the strength data of the impregnated glass fiber canvas, given in examples 1-6 and 7, respectively, indicates the achievement of the objective of the invention, and a comparison of the strength data of the impregnated glass fiber canvas shown in examples 1-6 and 8-10, indicates that These limits on the angle of grasp, when using non-evacuated polyvinyl chloride paste and during single-step paste application, a high degree of strength according to examples 1-6 (13.8-14.1 N / mm) is not reached.
    When using polyvinyl chloride paste, gelling temperature is also a necessary sign, since at 250 ° C, i.e. at 240 ° C, the strength of the impregnated canvas decreases (see example, measures 5.11), and at, i.e., at 280 ° C, the strength does not improve (see examples 6.12).
    权利要求:
    Claims (1)
    [1]
    METHOD FOR IMPOSING GLASS FIBER CANVAS by applying polyvinyl chloride paste onto one of its surfaces by means of a roller device and subsequent gelation when heated, characterized in that, in order to increase the strength of the canvas, vacuumized paste is used and it is applied to the surface of the canvas twice at an angle of coverage 50-120 ° and highlighting is carried out at a temperature of the heating element 250-270 C.
    >
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    类似技术:
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    同族专利:
    公开号 | 公开日
    DE3033264A1|1982-03-18|
    DE3173709D1|1986-03-20|
    EP0047373B1|1986-02-05|
    DE3033264C2|1984-06-20|
    AT17878T|1986-02-15|
    JPS57112450A|1982-07-13|
    EP0047373A1|1982-03-17|
    US4464432A|1984-08-07|
    JPH0116943B2|1989-03-28|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
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