Continuous extrusion method by bulk polymerization of acrylate rubber

Abstract

A continuous extrusion method by the bulk polymerization of acrylate rubber is characterized in that: a reaction component I, a reaction component II, an initiator and an addition agent are mixed according to a proportioning ratio to form a mixed solution according to a certain mixture ratio; then the mixed solution is injected into an extruder protected under N2 for reaction and extrusion; and finally solid materials of various shapes are obtained. According to parts by weight, the mixed solution comprises: 100 parts of the component I, 0-30 parts of the component II, 0.01-5 parts of the initiator and 0-5 parts of the addition agent. The method has the following advantages of: pure polymer in the bulk polymerization and lower ash content, simple synthesis formula and less intermittent equipment, and less working procedures due to reaction under the solvent-free condition, shortened process, reduced cost and improved production efficiency.

Description

technical field [0001] The invention relates to a reaction continuous extrusion method of bulk polymerization of acrylate rubber, in particular to the realization of the reaction continuous extrusion of bulk polymerization of acrylate rubber synthesis on an extruder. Background technique [0002] The application of the principle of reactive extrusion to the synthesis of high polymers first appeared in the 1960s. At present, polyurethane and polylactic acid have been applied. [0003] At present, the synthesis of acrylate rubber in industry mainly includes suspension polymerization, solution polymerization, and emulsion polymerization. Among them, emulsion polymerization is more common, but the three methods of emulsion, suspension, and solution all face a series of problems, such as the need for a large amount of solvent or water. Recycling, complex synthesis process, and additives remaining in the polymer also bring inconvenience to later processing and utilization. The tr...

AI Technical Summary

Problems solved by technology

[0003] At present, the synthesis of acrylate rubber in industry mainly includes suspension polymerization, solution polymerization, and emulsion polymerization. Among them, emulsion polymerization is more common, but the three methods of emulsion, suspension, and solution all face a series of problems, such as the need for a large amount of solvent or water. Recycling, the synthesis process is complicated, and the additives remaining in the polymer also bring inconvenience to the later processing and utilization

The traditional bulk polymerization method is difficult to control the heat of polymerization, so the industrialization of acrylate rubber bulk polymerization cannot be realized