Nano-mesoporous molecular sieve synergistic intumescent flame-retardant rubber and preparation method thereof

Abstract

Nano-mesoporous molecular sieve synergistic intumescent flame-retardant rubber and a preparation method thereof relate to flame-retardant rubber and the preparation method thereof. The flame-retardant rubber provided by the invention comprises, by weight, 100 parts of a rubber matrix, 1.5-2.8 parts of a vulcanizing agent, 1-1.5 parts of a promoter CZ, 1-3 parts of stearic acid, 4.5-5 parts of zinc oxide, 1-2 parts of an antioxidant 4010, 1-3 parts of liquid paraffin, 30-40 parts of carbon black, 60-80 parts of an intumescent flame retardant, and 0-5 parts of nano-mesoporous molecular sieve. The preparation method provided by the invention comprises the following steps of: plasticating rubber in an open mill, successively adding eleaostearic acid, zinc oxide, the promoter CZ, the antioxidant 4010, the nano-mesoporous molecular sieve, carbon black, liquid paraffin, IFR and sulphur, mixing and discharging tablets, followed by sulfuration. By the adoption of the nano-mesoporous molecular sieve synergistic intumescent flame retardant, its excellent flame-retardant synergistic effect and interfacial compatibility effect greatly improve the flame-retardant performance and mechanical properties of the rubber material.

Description

technical field [0001] The invention relates to a flame-retardant rubber and a preparation method thereof, in particular to a nano-mesoporous molecular sieve synergistic expansion type flame-retardant flame-retardant rubber material and a preparation method thereof. Background technique [0002] As a polymer material with excellent performance, rubber is widely used in wires, cables, rubber shoes, glove conveyor belts, rubber products used in automobiles, aircraft tires, electrical appliances, rubber sheets used in shopping malls, hospitals and other public places, and even Even high-tech products such as rockets, artificial earth satellites and spacecraft are inseparable from rubber materials. [0003] However, most rubber products are combustible or flammable, and will release a lot of black smoke during combustion, so the flame retardancy of rubber materials is very important. Traditional halogen-based flame retardants can achieve good flame-retardant effects, but they w...

AI Technical Summary

Problems solved by technology

However, if it is directly applied to polymer materials, the physical and mechanical properties of the material will be greatly reduced due to the compatibility between the two.