Preparation of high-ductility polyformaldehyde material with excellent comprehensive properties

Abstract

The invention relates to a high-tenacity polyoxymethylene material with extremely outstanding comprehensive performance, which is characterized in that the material is made of the following raw materials according to the weight percentage as follows: 50 percent-70 percent of kematal, 15 percent-30 percent of polyurethane elastomer, 3 percent-10 percent of compatibilizer, 0.1 percent-0.5 percent of antioxidant, 0.1 percent-0.5 percent of lubricant. The preparation method comprises the following steps: the raw materials are scaled and taken according to weight proportion; all the materials are put into a high mixing machine to be mixed for 2-5 minutes; the materials are taken out; the mixed materials are put into a screw compressor for extruding prilling. The rotating speed of the screw compressor is 180-600 rotation per minute and temperature is 150-170 DEG C. The invention has the advantages that the prepared poformaldehyde material has excellent shock resistance, and the intensity of shock can be reached. The invention can be used instead of the non-ferrous metals and alloy, and which is widely used in the fields of automobile, electrical appliance industry, common and precise mechanism, building and construction materials, etc.

Description

technical field [0001] The invention relates to a preparation method of a high-toughness polyoxymethylene material with excellent comprehensive performance. The material can be used to replace non-ferrous metals and alloys, and is widely used in industries such as automobiles, electronic appliances, general and precision machinery, hardware and building materials, and belongs to chemical materials. technology field. Background technique [0002] Polyoxymethylene (POM) is an engineering plastic with excellent comprehensive properties. Since the first industrialization of Du Pont Company in the United States in 1959, polyoxymethylene has been cheap and easy to obtain with its raw materials, and it is easy to process and shape, especially because of its unique mechanical properties. Performance, oil resistance, chemical resistance, low water absorption and good thermal and electrical properties, are used to replace non-ferrous metals and alloys, and are widely used in automobil...

AI Technical Summary

Problems solved by technology

POM is a weakly polar linear polymer with poor compatibility with other high polymers, so the toughening modification of POM is still a big problem.