Fiber modified nylon mould material and preparation method thereof

Abstract

The invention discloses a fiber modified nylon mould material. The fiber modified nylon mould material is prepared from, by weight, 1-2 parts of cyanoethyl cellulose, 2-3 parts of phosphorylated cellulose, 0.3-1 part of chitosan, 100-130 parts of nylon 66, 110-140 parts of dimethyl formamide, 4-6 parts of molybdenum disulfide, 0.1-0.2 part of lithium chloride, 2-3 parts of polystyrene, 20-30 parts of glass fiber, 0.7-1 part of hexadecyl trimethyl ammonium bromide, 1-2 parts of diacetone alcohol, 0.5-1 part of manganese sulfate, 2-4 parts ofpolymethyl acrylate, 0.4-0.5 part of fatty alcohol polyoxyethylene ether, 0.1-0.3 part of butyltin mercaptide, 3-4 parts of allyl polyethylene glycol and 0.1-0.2 part of sp80. The fiber modified nylon mould material can be dispersed in a polymer matrix by adding machine modified molybdenum disulfide, the thermal stability of the material can be effectively improved, meanwhile the molybdenum disulfide does not release non-combustible gas sulphur dioxide in the thermal degradation process, and the flame retardant properties of the material can be improved by utilizing the dilution effect of the molybdenum disulfide.

Description

technical field [0001] The invention relates to the technical field of mold materials, in particular to a fiber-modified nylon mold material and a preparation method thereof. Background technique [0002] As an indispensable tooling for modern industrial production, molds play a decisive role in production. Most of the current molds are made of metal. The quality and life of metal molds are very high, but their production costs are expensive, especially for some complex shapes. Formed metal molds, the production process is extremely complicated, many metal materials also have the defects of difficult processing, long processing cycle, and long repair time after the mold is worn; [0003] With the rapid development of industry, the strength and precision of polymer composite materials have been continuously improved, and the application range of its products has also been continuously expanded. Compared with metal materials, polymer composite materials are cheap to manufactur...

AI Technical Summary

Problems solved by technology

[0006] However, there are many thorny problems in the current research on molybdenum disulfide-based polymer nanocomposites

For example, the high-efficiency stripping of molybdenum disulfide, the dispersion of molybdenum disulfide nanosheets in the polymer matrix, and the low flame retardancy efficiency of a single molybdenum disulfide nanosheet may exist;