Flame-retardant grafted composite elastic material and preparation method thereof

Abstract

The invention discloses a flame-retardant grafted composite elastic material which is prepared from the following raw materials in parts by weight: 0.6-1 part of 8-hydroxyquinoline, 3-4 parts of 4-dimethylamino pyridine, 1-2 parts of triethylamine, 0.1-0.3 part of 2-bBromo-2-methylpropionyl bromide, 1-2 parts of sodium myrastate, 1-2 parts of 1-allyl-3methylimidazolium chloride, 50-60 parts of methyl methacrylate, 10-13 parts of carbon nanotubes, 40-51 parts of n-butyl acrylate, 0.7-1 part of copper bromide, 1.6-2 parts of pentamethyldiethylenetriamine, 1-2 parts of copper powder, 3-4 parts of allyl-polyethylene glycol, 1-2 parts of hydroxyl stearic acid, 2-3 parts of calcium fluoride, 2-4 parts of diisodecyl phthalate, 0.5-1 part of hexadecyl trimethyl ammonium chloride, 3-4 parts of water and zinc borate, 6-8 parts of tetrahydrofuran, a proper amount of ethylene glycol, a proper amount of dimethyl formamide, a proper amount of 95-98% nitric acid, a proper amount of chloroform, and a proper amount of thionyl chloride. Through the water, zinc borate, carbon nanotube and the like added, the flame-retardant performance of the finished material can be effectively enhanced, and the safety fireproof property of the finished product can be improved.

Description

Technical field [0001] The invention relates to the technical field of elastic materials, in particular to a flame-retardant grafted composite elastic material and a preparation method thereof. Background technique [0002] Thermoplastic elastomer is a special polymer material that has both elasticity and plasticity. It can be widely used in important areas of the national economy such as packaging materials, auto parts, adhesives, clothing, and biomedicine. Thermoplastic elastomers have a common feature, that is, almost all of them are phase separation systems. At room temperature, one phase is a rubber phase, and the other phase is a hard phase. The rubber phase with a very low glass transition temperature is used as the matrix, while the hard phase with a higher glass transition temperature is used as the dispersed phase to be dispersed in the rubber matrix to act as a physical crosslinking point. For thermoplastic elastomers, the hard phase makes the elastomer have strength,...

AI Technical Summary

Problems solved by technology

There are many studies on the introduction of carbon nanotubes into elastomers by physical blending methods. However, there are few studies on the use of carbon nanotubes as initiation points for graft polymerization to prepare elastomers. One-pot method is carried out by chemical methods. Graft polymerization can effectively increase the interaction between nanofillers and the matrix, make them better dispersed in the matrix, significantly enhance their interfacial force, and further improve their performance. Therefore, it is important to prepare such high-performance thermoplastic elastomers. the actual meaning of