Molybdenum-disulfide-modified nylon mold and preparation method thereof

Abstract

The invention discloses a molybdenum-disulfide-modified nylon mold which is prepared from the following raw materials in parts by weight: 0.3-0.4 part of tetramethyl ammonium hydroxide, 100-130 parts of nylon 66, 120-140 parts of dimethylformamide, 4-6 parts of molybdenum disulfide, 0.7-1 part of cetyl trimethylammonium bromide, 0.3-1 part of chitosan, 2-3 parts of polystyrene, 20-30 parts of glass fiber, 1-2 parts of aluminum potassium sulfate, 4-6 parts of glyceryl caprylate-caprate, 0.5-2 parts of lauroyl diethanolamide, 0.7-1 part of abietinol, 1-2 parts of phytic acid, 0.1-0.3 part of silane coupling agent kh560, 2-3 parts of barium stearate and 0.1-0.2 part of lithium chloride. The added modified molybdenum disulfide can be dispersed in the polymer matrix, thereby effectively enhancing the heat stability of the material. The molybdenum disulfide can release incombustible gas sulfur dioxide in the thermal degradation process, and thus, can enhance the flame retardancy of the material under the dilution action.

Description

technical field [0001] The invention relates to the technical field of mold materials, in particular to a molybdenum disulfide 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 chea...

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;