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High temperature resistant low-deformation medical TPE (thermoplastic elastomer) injection molding rubber plug material and preparation method thereof

A low-deformation, plastic injection technology, applied in the production and processing of polymer modified materials, can solve the problems of low-deformation performance of medical TPE rubber plug materials, etc., to improve high temperature resistance and low deformation performance, improve elasticity and strength, good practical effect

Inactive Publication Date: 2017-02-22
济南泰瑞丰高分子新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to improve the high temperature resistance and low deformation performance of disposable injection molding medical TPE rubber stopper materials is still a big problem in China.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: A high-temperature-resistant and low-deformation medical TPE injection rubber plug material mentioned in the present invention consists of the following components in parts by weight: 70 parts of SEBS (medical grade hydrogenated styrene-butadiene-styrene thermoplastic elastomer ), 20 parts of SEEPS, 20 parts of SEPS (hydrogenated styrene-isoprene-styrene thermoplastic elastomer), 60 parts of white oil, 10 parts of polyvinyl resin, 10 parts of polyether-based resin, 5 parts of silica , 5 parts of titanium dioxide, 7.5 parts of montmorillonite, 18 parts of talcum powder;

[0013] The preparation method is as follows: under the condition of 50°C-80°C, fully stir 70 parts of SEBS, 20 parts of SEEPS, and 20 parts of SEPS until fluffy, add 60 parts of white oil and heat at 50-80°C to make oil-extended Sizing material, then compound evenly with parts by weight of 10 parts of polyvinyl resin, 10 parts of polyether based resin, 5 parts of silicon dioxide, 5 parts o...

Embodiment 2

[0014] Embodiment 2: A high-temperature-resistant and low-deformation medical TPE injection molding rubber plug material is characterized in that it is composed of the following components by weight: 65 parts of SEBS (medical grade hydrogenated styrene-butadiene-styrene thermoplastic elastomer), 15 parts SEEPS, 30 parts SEPS (medical grade hydrogenated styrene-isoprene-styrene thermoplastic elastomer), 55 parts white oil, 15 parts polyvinyl resin, 15 parts polyether based resin, 5 parts silica , 5 parts of titanium dioxide, 8 parts of montmorillonite, 20 parts of talcum powder.

[0015] The preparation method is as follows: under the condition of 50°C-80°C, fully stir 65 parts of SEBS, 15 parts of SEEPS, and 30 parts of SEPS until fluffy, add 55 parts of white oil and heat at 50-80°C to make oil-extended Sizing material, and then with parts by weight of 15 parts of polyvinyl resin, 15 parts of polyether-based resin, 5 parts of silicon dioxide, 5 parts of titanium dioxide, 8 pa...

Embodiment 3

[0016] Example 3: A high-temperature-resistant and low-deformation medical TPE injection molding rubber plug material is characterized by the following components by weight: 80 parts of SEBS (medical grade hydrogenated styrene-butadiene-styrene thermoplastic elastomer), 15 parts of SEEPS, 10 parts of SEPS (medical grade hydrogenated styrene-isoprene-styrene thermoplastic elastomer), 65 parts of white oil, 12 parts of polyvinyl resin, 11 parts of polyether-based resin, 5 parts of silica , 5 parts of titanium dioxide, 7.5 parts of montmorillonite, 18 parts of talcum powder.

[0017] Its preparation method is: under the condition of 50℃-80℃, fully stir 80 parts of SEBS, 15 parts of SEEPS, and 10 parts of SEPS until it becomes fluffy, add 65 parts of white oil and heat at 50-80℃ and stir to make oil-extended Sizing material, and then with parts by weight of 12 parts of polyvinyl resin, 11 parts of polyether-based resin, 5 parts of silicon dioxide, 5 parts of titanium dioxide, 7.5 ...

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Abstract

The invention relates to a high temperature resistant low-deformation medical TPE (thermoplastic elastomer) injection molding rubber plug material and a preparation method thereof. The material mainly contains the following components in parts by weight: 20-150 parts of SEBS, 20-120 parts of at least one of SEPS and SEEPS, 20-200 parts of white oil, 20-160 parts of reinforced resin and 10-200 parts of filler. The material has the beneficial effects that the elasticity and strength of the new copolymer are greatly improved by blending SEBS, SEPS and SEEPS; the temperature and stress deformation resistance of the product system is improved by using the high molecular weight raw materials; the microscopic interlayer spacing of the product molecules is changed via the intercalation effect of montmorillonite, thus not only improving the original surface rigidity, creep resistance, acid-base resistance and dimensional stability of the filler system, but also improving the compatibility of the whole system and improving the high temperature resistance and low deformation performance of the product.

Description

technical field [0001] The invention relates to the technical field of production and processing of polymer modified materials, in particular to a high-temperature-resistant and low-deformation medical TPE injection molding rubber plug material and a preparation method thereof. Background technique [0002] Thermoplastic elastomer TPE is a promising elastomeric material, which has the elasticity of rubber, but also has the ease of processing of plastic and can be recycled repeatedly. Medical rubber stopper materials used to be mainly linear rubber materials, which must be chemically cross-linked before use, but the vulcanized cross-linking system will introduce a series of pollution sources, greatly reducing the purity of rubber stoppers, and burying hidden dangers for pharmaceutical packaging. It cannot be recycled and used. At the same time, the production process of domestic thermosetting rubber materials is backward, with high energy consumption, low efficiency, overcapa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L91/06C08L71/00C08K3/00C08K3/36C08K3/22C08K3/34B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08L53/025C08L91/06C08L2201/08C08L2205/025C08L2205/035C08L71/00C08K3/00C08K3/36C08K2003/2241C08K3/34C08K3/346
Inventor 王彦富王彦君迟建友
Owner 济南泰瑞丰高分子新材料有限公司
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