SiO2 colloid microsphere reinforced flame retardation automobile vacuum-thermoform material and preparation method thereof

Abstract

The invention discloses a SiO2 colloid microsphere reinforced flame retardation automobile vacuum-thermoform material and a preparation method thereof. The method is characterized in that acrylonitrile-butadiene-styrene copolymer (ABS), linear phenolic resin, microencapsulated red phosphorus, basic magnesium sulfate whisker, nitrile butadiene rubber, meso-porous molecular sieve SBA-15, ammonium polyphosphate, melamine formaldehyde resin, kaolin, Sb2O3, dimethicone, graphene, L-arginine, cyclohexane and tetraethyl orthosilicate are adopted as raw materials. The linkage effect of the meso-porous molecular sieve and the linear phenolic resin improves the thermal stability of matrix resin; the microencapsulated red phosphorus and antimony oxide/kaolin composite flame-retardant micro-powder have synergism, so the material has a good flame retardation effect; and the graphene is added to the ABS resin matrix, so the flame retardation property and the thermal stability of the resin are obviously improved, and the mechanical performances are high. The SiO2 colloid microsphere reinforced flame retardation automobile vacuum-thermoform material is prepared in the invention.

Description

technical field [0001] The invention relates to the technical field of flame retardancy of composite materials, in particular to a SiO 2 Colloidal microsphere-reinforced flame-retardant automotive plastic-absorbing material, and its preparation process. Background technique [0002] ABS is a terpolymer composed of acrylonitrile, butadiene and styrene. As a thermoplastic engineering plastic, it is widely used in the automotive industry, electronics, Electrical appliances, textiles, appliances and building materials and other fields. However, the flame retardancy of ABS resin is poor. How to find an additive that can improve the flame retardancy of ABS resin without reducing its excellent performance has become a research hotspot. [0003] Yang Bing used low-toxicity, low-smoke, high temperature resistance, high carbon residue rate, economical and efficient novolac resin as charcoal-forming material in his master's thesis "Research on Novolac Resin and Microcapsule Red Phosp...

AI Technical Summary

Problems solved by technology

However, the flame retardancy of ABS resin is poor. How to find an additive that can improve the flame retardancy of ABS resin without reducing its excellent performance has become a research hotspot.

[0003] Yang Bing used low-toxicity, low-smoke, high temperature resistance, high carbon residue rate, economical and efficient novolac resin as charcoal-forming material in his master's thesis "Research on Novolac Resin and Microcapsule Red Phosphorus Halogen-Free Flame Retardant ABS". As an agent, microencapsulated red phosphorus is used as a synergistic flame retardant, basic magnesium sulfate whiskers are used as inorganic flame retardant, and nitrile rubber with good compatibility with ABS matrix is ​​selected for toughening modification. After plasticizing on a double-roll mill at 180°C, add antioxidants and evenly mixed novolak resin, microcapsule red phosphorus, inorganic flame retardant basic magnesium sulfate whiskers, and nitrile rubber blends in sequence, and knead After uniformity, the material is discharged and placed in the mold, hot-pressed on a flat vulcanizing machine at 180°C for 10 minutes, and then cold-pressed at room temperature for 10 minutes, and the modified ABS plastic sheet is molded, but the flame retardant effect is insufficient.