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Continuous fiber enhanced thermoplastic antiflaming presoaking belt 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 retardancy and excellent mechanical properties

Active Publication Date: 2012-12-05
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 report on continuous fibers. The technical difficulty lies in the uniform coating of flame-retardant resin and the infiltration of continuous fibers

Method used

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  • Continuous fiber enhanced thermoplastic antiflaming presoaking belt composite material and preparation method thereof
  • Continuous fiber enhanced thermoplastic antiflaming presoaking belt composite material and preparation method thereof
  • Continuous fiber enhanced thermoplastic antiflaming presoaking belt composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Resin is prepared by following raw material parts by weight:

[0045] PP65

[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, thermoplastics, flame retardants, grafting agents, glass beads and auxiliary additives are mixed uniformly by a high mixer and then extruded in a twin-screw extruder for granulation. 45%). The fibers treated with sizing agent (accounting for 55% of the total amount of prepreg tape) are introduced into the fiber spreading system through the spinning creel, and the tension of the system is adjusted through the tension adjustment system, so that each fiber bundle is evenly stressed, so that it can be flattened prepreg tape. The flat prepreg belt passes through a spreadi...

Embodiment 2～4

[0060] Carry out according to the processing route of embodiment 1, raw material proportioning is configured by following weight parts:

[0061]

[0062] Gained product performance is as follows table:

[0063]

Embodiment 5

[0065] A preparation method of continuous fiber reinforced thermoplastic flame-retardant prepreg tape composite material, the method comprises 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 2-130 μm and a true density of 0.25-0.6 g / cm3 8,

[0072] Antioxidant 1010 0.1

[0073] Antioxidant 168 0.2,

[0074] Commercially available light stabilizer 0.6,

[0075] Ethylene bisstearamide 1;

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

[0077] (2) Weighing the modified resin prepared in step (1) by 45wt%, continuous fiber 55wt%; the continuous ...

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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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Patent Type & Authority Patents(China)
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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