Thermoplastic styrene-butadiene rubber used in medical treatment field and preparation method of thermoplastic styrene-butadiene rubber

Abstract

The invention discloses thermoplastic styrene-butadiene rubber used in the medical treatment field. The rubber is prepared from the following components in percentage by weight: 10-40 percent of styrene-butadiene-styrene segmented copolymer, 20-50 percent of naphthenic oil 4006, 0.5-10 percent of n-butyllithium, 1-6 percent of tetrahydrofuran, 0.1-3 percent of titanocene dichloride, 0.1-5 percent of antioxygen, 0.2-3 percent of UL327 and 0.1-0.5 percent of vinyl bistearic amide, the sum of the weight percentage of all components being 100 percent. The thermoplastic styrene-butadiene rubber has the advantages of high temperature tolerance, weather resistance and ultraviolet (UV) resistance, and is free of toxicity, good in flexibility, low in compression deformation and high in sealing performance; 120-DEG C steam sterilization and X-ray irradiation can be borne; the food and drug administration standard of elastic characteristics of styrene type thermoplastic elastomer is met so that the rubber conforms to the food and drug administration (FDA) and can be used for making medical rubber products such as injectors and transfusion instruments.

Description

technical field [0001] The invention relates to the technical field of hydrogenation of styrene-butadiene rubber, in particular to a thermoplastic styrene-butadiene rubber used in the medical field and a preparation method thereof. Background technique [0002] Thermoplastic styrene-butadiene rubber (TPE) has the characteristics of both plastic and rubber, and is known as "the third generation of synthetic plastics". Styrenic thermoplastic elastomer (SBC) occupies an important position in TPE, and is currently the world's largest and fastest-growing thermoplastic elastomer. Compared with other thermoplastic elastomers, SBC has the characteristics of softness, small permanent deformation, and rubber elasticity. It is suitable for adhesives and sealing materials for hot-melt processing, and is used in shoemaking, liquid sealing materials, wires, cables, automotive parts, There are a wide range of applications in areas such as medical device components, household appliances, a...

AI Technical Summary

Problems solved by technology

Although the research and development of SBC in my country has made important progress, two sets of 10,000-ton SBS production equipment have been built using the complete set of technology developed by ourselves, and successfully realized the supply to Enichem Elastom Company of Italy and Taiwan Synthetic Rubber Co., Ltd. Complete set of technology transfer, but at present, compared with foreign advanced technology, there is still a certain gap between my country's SBS and its series of products (including SIS, SEBS, SPES and other varieties) complete set of technology in terms of material consumption, energy consumption and variety grades, resulting in product costs. high energy consumption

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