Thermoplastic composite preimpregnation body plate
The invention discloses a thermoplastic composite preimpregnation body plate, which is prepared by a thermoplastic composite preimpregnation body or is compounded by the thermoplastic composite preimpregnation body and thermoplastic polymer through hot melting. The thermoplastic composite preimpregnation body is prepared by steps of steeping fabric prepared by reinforced fibers in thermoplastic polymer aqueous dispersion, drying and dehydrating, melting the polymer, cooling and shaping, and the length of the reinforced fibers is more than 2cm. According to the preparation method of the thermoplastic composite preimpregnation body, an organic solvent is not used, water is taken as a dispersion medium, the aqueous dispersion of polymer substitutes for the organic solvent, so that the preparation method is environment-friendly; the aqueous dispersion used by the preparation method has low viscosity and is beneficial to steeping of the polymer on fiber bundles, the immersion treatment is convenient, the production efficiency is high, the production cost is low, and the problem of effectively steeping the reinforced fiber fabric by the thermoplastic polymer is solved; compared with the composite board prepared by the prior art, the preimpregnation body plate is sharply improved in tensile strength and deformation performance. 1. A thermoplastic composite material prepregs plate, characterized in that the thermoplastic composite material prepreg preparation and into, or made of a thermoplastic composite material and a thermoplastic polymer preliminary dip body compounded of heat; thermoplastic composite material prepregs body is composed of a reinforced fiber prepared by thermal plasticity of the polymer dispersions of the fabric after impregnation, drying and dewatering, polymer melt, and cooling; increasing the fiber length is more than 2 centimeters. 2. Thermoplastic composite material prepregs plate according to Claim 1, characterized in that the reinforcing fiber is glass fiber, carbon fiber, metal fiber, aramid fiber, polyether-ether-ketone fiber or polyphenylene sulfide fiber, the diameter of the reinforcing fiber 4-30 microns, the reinforced fiber of fiber bundle siphon test is qualified, prepreg in the content of the thermoplastic polymer is a thermoplastic composite material prepreg quality 10-40%. 3. Thermoplastic composite material prepregs plate according to Claim 2, characterized in that the diameter of the reinforcing fiber 8-25 microns. 4. -3 arbitrary a said thermoplastic composite material prepregs plate according to Claim 1, characterized in that the thermoplastic polymer dispersions of raw material components including: thermoplastic polymer powder 100 parts, reactive surfactant 5-20 parts, initiator 0.05-2 parts, graft monomer 0-30 parts, water 180-250 parts, the parts of the mass portion; The thermoplastic polymer powder including: polyethylene, polypropylene, thermoplastic polyurethane, thermoplastic polyester, ABS, nylon, polyether-ether-ketone, polyketone ketonic ether , polyphenylene sulfide, polyimide, polycarbonate, polyacrylonitrile, polystyrene, polyacrylate or polymethacrylate one kind or more than two kinds of arbitrary proportions of the mixture; The reactive surface active agent is acrylamide-based isopropylacrylamides sulfonate, allyl containing special alcohol ether sulfate, double bond-containing alcohol ether sulfosuccinate salt, vinyl sulfonic acid sodium salt, 2-ene of diallyl ether 3- hydroxyl propane-1-sulfonic acid sodium, allyl ether hydroxy propane sulfonic acid sodium, allyl polyether sulfate, alkyl phenol alkene propyl polyether sulfate, sulfonate acrylamide, acrylic acid ethers sulfonated bodies acid salt, maleic acid salt, acrylic acid, 2-methyl propylene methoxyethyl trimethyl ammonium chloride, methacryloyl ethyl cetyl dimethyl ammonium bromide, polyoxyethylene ether maleic acid, acrylic acid polyoxyethylene ethers, polyoxyethylene castor oil, polyoxyethylene ethers or allyl demulsified in a ratio of any two or more of the mixture; The initiator is benzoyl peroxide, azobisisobutyronitrile or persulfate in a ratio of any two or more of the mixture; The grafting monomer is methyl styrene, styrene, acrylic acid, acrylic ester, methyl acrylic acid, methyl acrylate, vinyl acetate, maleic acid, shuen butene dioic acid ester , fumaric acid , fumaric acid ester, acrylamide, or hydroxymethyl acrylamide in a ratio of any two or more of the mixture; The thermoplastic polymer method for producing aqueous dispersions, which comprises the following steps of: A, the thermoplastic polymer powder 100 parts, reactive surfactant 5-20 parts, initiator 0.05-2 parts, graft monomer 0-30 and water 180-250 uniformly mixed; B, the step of heating the mixed material obtained A to the 85-99 [...] , under stirring condition, thermostatic 3-6 hours, the temperature of the material is then reduced to room temperature or the temperature in the next step; C, the step of grinding the resulting supplies B to material particle size D50 of less than 13 the m, cooling to room temperature the discharge. 5. Thermoplastic composite material prepregs plate according to Claim 4, characterized in that the quality of the reinforcing fiber for the total weight of the prepreg board 4-70%. 6. -3 arbitrary a said thermoplastic composite material prepregs plate according to Claim 1, characterized in that the said fabric is a woven fabric, knitted fabric, nonwoven fabric, multi-directional fabric or three-dimensional fabric. 7. -3 arbitrary one of the thermoplastic composite material prepregs plate according to Claim 1, characterized in that the thermoplastic polymer include: polyethylene, polypropylene, polyvinyl chloride, thermoplastic polyurethane, thermoplastic polyester, ABS, nylon, polyether-ether-ketone, polyketone ketonic ether , polyphenylene sulfide, polyimide, polycarbonate, polyacrylonitrile, polystyrene, polyacrylate or polymethacrylate. 8. -3 the thermoplastic composite material prepregs plate according to Claim 1, characterized in that the thermoplastic composite material preliminary dip body one surface or two surfaces of a composite of a layer or multi-layer polymer film, after the compound is a single-layer polymer film gram weight per sq m 50 g to 500 g; polymer film is formed of a thermoplastic polymer, said thermoplastic polymer including: polyethylene, polypropylene, thermoplastic polyurethane, thermoplastic polyester, ABS, nylon, polyether-ether-ketone, polyketone ketonic ether , polyphenylene sulfide, polyimide, polycarbonate, polyacrylonitrile, polystyrene, polyacrylate or polymethacrylate. 9. -3 the thermoplastic composite material prepregs plate according to Claim 1, characterized in that the non-woven fabric layer or more than one layer of the thermoplastic composite material with a thermoplastic polymer preliminary dip body in heating molten state under preparation to needling, the direction of thickness of the prepreg board to form a longitudinal fiber distribution, needle is made of metal or polymer, polymer prepreg of the needle remain buried in the board. 10. Thermoplastic composite material prepregs plate according to Claim 9, characterized in that the needling, needling density per square centimeter is lower than 4 needle.