▎ 摘　　要

NOVELTY - High-strength MC nylon 6-base composite material comprises 100 pts. wt. caprolactam monomer, 0.1-10 pts. wt. graphene, 0.01-10self-assembling nucleating agent, 0.5-10 pts. wt. nylon fiber, 0.1-10 pts. wt. polyether compound, 0.1-5 pts. wt. dopamine, 0.01-1 pts. wt. alkali catalyst and 0.1-1 pts. wt. polyisocyanate activator, where the self-assembling nucleating agent is dibenzylidene sorbitol, di (pmethyl benzylidene) sorbitol, 4-dimethyldibenzylidene sorbitol, substituted aromatic amide nucleating agent (TMB-5), decanediyl dibenzoyl hydrazine, rare earth beta -crystal nucleating agent (WBG), 2, 6-benzene dicarboxylic acid cyclohexane amide. The diameter of the nylon fiber is 10-30um and the length is 100-5000um. The alkali catalyst is metal sodium, metal potassium, sodium hydroxide, sodium caprolactam and/or sodium methoxide. USE - Used as high-strength MC nylon 6-base composite material. ADVANTAGE - The material: has excellent toughening effect and high mechanical strength; enhances the graphene role; and prevents fiber sedimentation. DETAILED DESCRIPTION - High-strength MC nylon 6-base composite material comprises 100 pts. wt. caprolactam monomer, 0.1-10 pts. wt. graphene, 0.01-10self-assembling nucleating agent, 0.5-10 pts. wt. nylon fiber, 0.1-10 pts. wt. polyether compound, 0.1-5 pts. wt. dopamine, 0.01-1 pts. wt. alkali catalyst and 0.1-1 pts. wt. polyisocyanate activator, where the self-assembling nucleating agent is dibenzylidene sorbitol, di (pmethyl benzylidene) sorbitol, 4-dimethyldibenzylidene sorbitol, substituted aromatic amide nucleating agent (TMB-5), decanediyl dibenzoyl hydrazine, rare earth beta -crystal nucleating agent (WBG), 2, 6-benzene dicarboxylic acid cyclohexane amide. The diameter of the nylon fiber is 10-30um and the length is 100-5000um. The alkali catalyst is metal sodium, metal potassium, sodium hydroxide, sodium caprolactam and/or sodium methoxide. The polyisocyanate is toluene diisocyanate (TDI), diphenyl methane diisocyanate (MDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI) and/or triphenylmethane triisocyanate (TTI). The polyether compound is a hydroxy-terminated polyoxyethylene ether with a molecular weight of 500-50,000 g/mol, hydroxy-terminated polyoxypropylene ether with a molecular weight of 500-50,000 g/mol, amino-terminated polyoxypropylene ether with a molecular weight of 500-50,000 g/mol, and/or amino-terminated polyoxyethylene ethers with a molecular weight of 500-50,000 g/mol. An INDEPENDENT CLAIM is also included for preparing the high-strength MC nylon 6-base composite material comprising preparing nylon fiber-g-dopamine-polyether compound by taking 0.1-5 pts. wt. dopamine into an aqueous solution with a concentration of 2 g/l, adding tris methylolaminomethane to adjusting the pH value of the solution to make the pH value to 8-9, adding 10-30 pts. wt. nylon fiber, treating at room temperature for 2-10 hours to graft dopamine onto the surface of nylon and polymerizing to form polydopamine, adding 0.1-10 pts. wt. polyether compound, mixing uniformly and treating at 30-50 degrees C for 2-10 hours, rinsing with deionized water, vacuuming and drying at 50 degrees C, melting 100 pts. wt. caprolactam at 180-230 degrees C, adding 0.1-10 pts. wt. graphene and 0.01-10 pts. wt. self-assembly nucleating agent, stirring uniformly, carrying out ultrasonica treatment for 20-200 minutes and cooling to 125-150 degrees C, adding 0.5-10 pts. wt. nylon fiber-g-dopamine-polyether compound, stirring uniformly and distilling under reduced pressure to remove water, adding 0.01-1 pts. wt. alkali catalyst into the reaction kettle and performing vacuum distillation again to remove water, heating up to 135-160 degrees C, removing the vacuum and quickly adding 0.1-1 pts. wt. polyisocyanate activator, stirring uniformly and injecting it into the mold and preheating to 160-200 degrees C, polymerizing for 20-90 minutes and naturally cooling.