Continuous fiber reinforced thermoplastic flame retardant prepreg tape composite material and preparation method thereof

A technology for reinforcing thermoplastic and continuous fibers, which is applied in the field of continuous fiber reinforced thermoplastic flame retardant prepreg composite materials and their preparation, and achieves the effects of good impact resistance, high flame retardant level and strong cleaning ability

Active Publication Date: 2011-12-28
LIAONING LIAOJIE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the current research on flame-retardant thermoplastic composites is limited to long fibers and short fibers, and there has been no re

Method used

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  • Continuous fiber reinforced thermoplastic flame retardant prepreg tape composite material and preparation method thereof
  • Continuous fiber reinforced thermoplastic flame retardant prepreg tape composite material and preparation method thereof
  • Continuous fiber reinforced thermoplastic flame retardant prepreg tape composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] Example 1

[0044] The resin is prepared in parts by weight of the following raw materials:

[0045] PP 65

[0046] Decabromodiphenylethane 24

[0047] Sb 2 O 3 8

[0048] PP-g-MAH 3

[0049] Glass beads 5

[0050] Antioxidant 1010 0.4

[0051] Antioxidant 168 0.2

[0052] Light stabilizer 3346 0.3

[0053] Light stabilizer 3853S 0.3

[0054] Magnesium stearate 1.2

[0055] Such as figure 1 As shown, the thermoplastic, flame retardant, grafting agent, glass microbeads, and auxiliary additives are uniformly mixed by a high-mixer and then extruded and pelletized in a twin-screw extruder for use (accounting for the total amount of the prepreg 45%). The fiber treated with sizing agent (accounting for 55% of the total prepreg tape) is introduced into the fiber spreading system through the textile creel, and the system tension is adjusted by the tension adjustment system to make each fiber bundle evenly stressed, so as to get smooth Prepreg tape. The flat prepr...

Example

[0059] Examples 2~4

[0060] According to the process route of Example 1, the raw material ratio is configured according to the following parts by weight:

[0061]

[0062] The performance of the obtained product is as follows:

[0063]

Example Embodiment

[0064] Example 5

[0065] A method for preparing continuous fiber reinforced thermoplastic flame-retardant prepreg tape composite material, the method includes the following steps:

[0066] (1) Preparation of modified resin, prepare raw materials according to the following components and parts by weight:

[0067] Polyethylene 55,

[0068] Decabromodiphenylethane 35,

[0069] The weight ratio of antimony trioxide is 5,

[0070] Polypropylene grafted maleic anhydride (PP-g-MAH) 3,

[0071] Glass beads with a particle size of 2~130μm and a true density of 0.25~0.6g / cm3 8.

[0072] Antioxidant 1010 0.1

[0073] Antioxidant 168 0.2,

[0074] Commonly used commercially available light stabilizer 0.6,

[0075] Ethylene bisstearamide 1;

[0076] The above raw materials are uniformly mixed in a high mixer and then extruded and pelletized in a twin-screw extruder to obtain the modified resin;

[0077] (2) Weigh the modified resin prepared in step (1) at 45% by weight and 55% by weight of continuous fiber...

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Abstract

The invention relates to a continuous fiber enhanced thermoplastic antiflaming presoaking belt composite material and a preparation method thereof. The composite material is prepared from the following raw materials by weight percent: 45-55% of modified resin and 55-45% of continuous fiber. According to the preparation method in the invention, the composite material is obtained by reasonable fiber dispersion, resin impregnation and composite rolling processes based on the resin containing a flame retardant, a grafting agent, glass microsphere and other auxiliaries and the continuous fiber treated by an impregnating agent which are used as raw materials; compared with the prior art, by using the preparation method in the invention, the problem that the antiflaming resin is difficultly impregnated due to poor flowability is overcome, the produced continuous fiber enhanced thermoplastic antiflaming presoaking belt has extremely high strength, modules and impact property and has antiflaming characteristic, wherein the antiflaming grade can reach UL94 V0 grade.

Description

technical field [0001] The invention relates to a continuous fiber reinforced thermoplastic flame retardant composite material, in particular to a continuous fiber reinforced thermoplastic flame retardant prepreg composite material and a preparation method thereof. Background technique [0002] Most of the existing continuous fiber-reinforced composite materials are continuous fiber-reinforced thermosetting resin composite materials. Although this material has excellent strength and modulus, its brittleness and non-recyclability due to thermosetting resin make it an attractive option for energy conservation and emission reduction. Difficult in the international environment. Continuous fiber-reinforced thermoplastic composites not only have ideal strength and modulus, thermoplastic resin endows composites with excellent impact properties and the advantages of being recyclable, and has been developed rapidly in recent years. The application of common continuous fiber reinforc...

Claims

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Application Information

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IPC IPC(8): C08L23/00C08L77/00C08L69/00C08L77/10C08L23/12C08L23/06C08K7/00C08K3/22C08K5/03C08K5/02C08K7/20C08K9/04C08K7/14C08K7/06C08K7/10B29B9/06
Inventor 冉玉霞解廷秀
Owner LIAONING LIAOJIE SCI & TECH
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