Thermoplastic elastomer for medical experimental human part and production method

Abstract

The invention discloses a thermoplastic elastomer for a medical experimental human part and a production method. The elastomer is prepared by the following raw materials by weight: one or two of SEBS503 and maleic anhydride graft SEBS, intensifier, one or a plurality of polypropylene, maleic anhydride graft polypropylene with the grafting ratio of 2-9wt%, maleic anhydride graft ABS and polystyrene with the grafting ratio no less than 9wt%, SBS792, skeleton intensifier, plasticized softener, pigment and additive. In the invention, universal compatilizer-SEBS503 and maleic anhydride copolymer are adopted in the raw materials, and the mineral oil resistance of a produced variety can be compared favorably with the oil resistance of butadiene nitrile rubber, thereby solving the disadvantages of low tear resistance intensity and non mineral oil resistance of human soft part materials. When the thermoplastic elastomer is used for producing a product, a vulcanization process is removed, equipment and the process are simple, leftover bits and pieces can be repeatedly utilized, and environmental pollution caused by any exhaust of three wastes can not occur in both production process and use process.

Description

technical field [0001] The invention relates to a medical component of a radiotherapy planning system (TPS), in particular to a thermoplastic elastomer used for medical experiment human body components and a production method. Background technique [0002] Polyvinyl chloride (PVC) resin has been the material of general medical experimental human body parts. However, the polyvinyl chloride (PVC) material itself has disadvantages, that is, hydrogen chloride will be released during use, forming chronic pollution emissions. Europe, the United States and some developed countries have basically eliminated the application of PVC in the field of experimental human medical use; while vulcanized natural latex (with part of carboxylated styrene-butadiene latex) and liquid silicone products require complicated vulcanization processes and processes, complex equipment, expensive investment, and raw and auxiliary materials. There are toxic substances in the materials and reaction by-produ...

AI Technical Summary

Problems solved by technology

However, the polyvinyl chloride (PVC) material itself has disadvantages, that is, hydrogen chloride will be released during use, forming chronic pollution emissions.

Europe, the United States and some developed countries have basically eliminated the application of PVC in the field of experimental human medical use; while vulcanized natural latex (with part of carboxylated styrene-butadiene latex) and liquid silicone products require complicated vulcanization processes and processes, complex equipment, expensive investment, and raw and auxiliary materials. There are toxic substances in the materials and reaction by-products, and there are serious unsafe hidden dangers in the high temperature and high pressure in the production process; and the production consumption is large, the scrap rate is high, and the production cost increases accordingly; moreover, there are a large number of "three wastes" discharged, forming harsh environmental pollution

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