Preparation process of styrene type polybasic copolymerized high molecular material

Abstract

The invention provides a preparation process of a styrene type polybasic copolymerized high molecular material and belongs to the technical field of high molecular materials. The preparation process is characterized by comprising the following steps: (1) purifying a solvent; (2) refining raw materials; (3) pre-treating a monomer; (4) synthesizing; (5) homogenizing; (6) devolatilizing; (7) dicing, drying, homogenizing and packaging. According to the preparation process of the styrene type polybasic copolymerized high molecular material, provided by the invention, combined application of technologies including comprehensive refining, polymerization, double-screw-rod extrusion, solvent devolatilization and the like of the raw materials is carried out to prepare the styrene type polybasic copolymerized high molecular material with various types of specific characteristics. Compared with a traditional polymerization process, the production efficiency is obviously improved; the recycling rate of a solvent is high and the loss of the materials is small; the content of residues in a product is low, and the optimization of inherent quality and reaction speed of a polymer is realized. The preparation process also has the advantages of small pollution to the environment and benefits to environment protection.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a preparation process of styrene-based multi-component copolymerized polymer materials. Background technique [0002] Styrene copolymer is a kind of thermoplastic polymer synthetic material with block structure and high styrene content, which is produced by adding suitable initiator and adopting suitable polymerization method, which uses styrene and diene as monomers. The material has the characteristics of environmental protection, excellent comprehensive performance, easy availability of raw materials, and wide application. It is widely used in the manufacture of transparent, hard, and unbreakable products, such as electrical appliances, instruments, medical supplies, food packaging, household daily necessities and plastics. Alloy etc. [0003] In the traditional solution polymerization process, most of them use steam stripping method to realize the separation of solid...

AI Technical Summary

Problems solved by technology

However, compared with the requirements of environmental protection, energy saving and water saving in modern society, this route has the disadvantages of large water consumption, 4 to 6 tons of sewage per ton of product; high energy consumption and high volatile content.

[0004] At present, the methods for preparing styrene-based copolymers at home and abroad mostly adopt the anionic solution polymerization method using the reactor as the polymerization reactor. This polymerization method has a better polymerization effect than other polymerization methods. Anionic solution polymerization method, but it ignores the important influence of the refining of raw materials on various special properties of styrene-based multi-component copolymerization functional polymer materials, and its yield is low

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