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
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[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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