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Medical PVC material with high elasticity, low temperature resistance and electron beam irradiation sterilization resistance and preparation method thereof

A technology of PVC material and electron beam irradiation is applied in the field of medical PVC material and its preparation, which can solve the problems of decreased mechanical properties, low temperature elasticity, yellowing of medical PVC materials, etc.

Active Publication Date: 2021-01-22
常州恒方大高分子材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a medical PVC material with high elasticity, low temperature resistance and electron beam irradiation sterilization and its preparation method. This material mainly solves the serious yellowing and the decline of mechanical properties of existing medical PVC materials after electron beam sterilization. The problem of low-temperature elasticity decline is caused, and the requirements of electron beam radiation resistance and low-temperature elasticity at -40°C for PVC materials are realized.

Method used

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  • Medical PVC material with high elasticity, low temperature resistance and electron beam irradiation sterilization resistance and preparation method thereof
  • Medical PVC material with high elasticity, low temperature resistance and electron beam irradiation sterilization resistance and preparation method thereof

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Embodiment 1

[0030] The material provided by the invention is formulated by weight ratio from the following raw materials:

[0031] Medical PVC resin powder: 100 parts;

[0032] Low temperature resistant plasticizer DOA: 40 parts;

[0033] High elastic low temperature resistant resin: 30 parts;

[0034] Ultrafine calcium / zinc stabilizer: 1.5 parts;

[0035] Auxiliary heat stabilizer: 5 parts;

[0036] Lubricant: 1.0 parts.

[0037] The high elastic low temperature resistant resin is composed of 50%-60% ethylene / vinyl acetate / carbon monoxide copolymer, 10%-20% ethylene-vinyl acetate copolymer and 20%-40% thermoplastic polyester polyurethane Elastomer composition; Described superfine calcium / zinc stabilizer is by the calcium stearate of 30-60%, the zinc glycerol of 5-10%, the zinc acetylacetonate of 5-10%, the stearyl stearyl of 10-20% Benzoylmethane, 5-15% of 1,3-diphenylpropanedione-rare earth metal organic complex and 10-25% of bis(2,4-di-tert-butylphenol) pentaerythritol diphosphite...

Embodiment 2

[0044] The material provided by the invention is formulated by weight ratio from the following raw materials:

[0045] Medical PVC resin powder: 100 parts;

[0046] Low temperature resistant plasticizer DOA: 20 parts;

[0047] High elastic low temperature resistant resin: 50 parts

[0048] Ultrafine calcium / zinc stabilizer: 1 part;

[0049] Auxiliary heat stabilizer: 8 parts;

[0050] Lubricant: 0.5 parts.

[0051] The high elastic low temperature resistant resin is composed of 50%-60% ethylene / vinyl acetate / carbon monoxide copolymer, 10%-20% ethylene-vinyl acetate copolymer and 20%-40% thermoplastic polyester polyurethane Elastomer composition; Described superfine calcium / zinc stabilizer is by the calcium stearate of 30-60%, the zinc glycerol of 5-10%, the zinc acetylacetonate of 5-10%, the stearyl stearyl of 10-20% Benzoylmethane, 5-15% of 1,3-diphenylpropanedione-rare earth metal organic complex and 10-25% of bis(2,4-di-tert-butylphenol) pentaerythritol diphosphite ; Th...

Embodiment 3

[0054] The material provided by the invention is formulated by weight ratio from the following raw materials:

[0055] Medical PVC resin powder: 100 parts;

[0056] Low temperature resistant plasticizer DEHP: 30 parts;

[0057] High elastic low temperature resistant resin: 50 parts;

[0058] Ultrafine calcium / zinc stabilizer: 1.0 parts;

[0059] Auxiliary heat stabilizer: 10 parts;

[0060] Lubricant: 0.8 parts.

[0061] The high elastic low temperature resistant resin is composed of 50%-60% ethylene / vinyl acetate / carbon monoxide copolymer, 10%-20% ethylene-vinyl acetate copolymer and 20%-40% thermoplastic polyester polyurethane Elastomer composition; Described superfine calcium / zinc stabilizer is by the calcium stearate of 30-60%, the zinc glycerol of 5-10%, the zinc acetylacetonate of 5-10%, the stearyl stearyl of 10-20% Benzoylmethane, 5-15% of 1,3-diphenylpropanedione-rare earth metal organic complex and 10-25% of bis(2,4-di-tert-butylphenol) pentaerythritol diphosphi...

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Abstract

The invention relates to a medical PVC material with high elasticity, low temperature resistance and electron beam irradiation sterilization resistance and a preparation method thereof. The medical PVC material comprises the following components in parts by weight: 100 parts of medical PVC resin powder; 20-40 parts of a low temperature resistant plasticizer dioctyl adipate (DOA); 30-50 parts of high-elasticity low-temperature-resistant resin; 1.0-1.5 parts of an ultrafine calcium / zinc composite stabilizer; 5-10 parts of an auxiliary heat stabilizer; and 0.5-1.0 part of lubricant. The medical PVC material with high elasticity, low temperature resistance and electron beam irradiation sterilization resistance can effectively solve the problems that the existing medical PVC material is seriously yellowed and the low-temperature elasticity is reduced after electron beam irradiation sterilization, and the requirements of the PVC material on electron beam irradiation resistance and elasticityat -40 DEG C are met.

Description

technical field [0001] The invention relates to a medical PVC material with high elasticity, low temperature resistance and electron beam irradiation sterilization and a preparation method thereof. Background technique [0002] At present, the world generally adopts three methods of high-temperature steam sterilization, ethylene oxide sterilization and radiation sterilization for disposable polyvinyl chloride medical consumables. With the increasingly stringent environmental protection requirements, in recent years, international developed regions and countries The elimination of traditional ethylene oxide sterilization has been accelerated, and steam sterilization has high requirements on materials and is difficult to popularize. The use of electron beam irradiation sterilization to sterilize medical devices has strong penetrating power, fast sterilization speed, A series of advantages such as high efficiency and normal temperature sterilization. However, ordinary medical ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/08C08L75/06C08L91/04C08L23/06C08K5/11C08K5/098C08K5/057C08K5/00C08K5/527C08K5/07C08K5/09
CPCC08L27/06C08L2201/08C08L2205/02C08L2205/025C08L2205/035C08L23/0853C08L75/06C08L91/04C08L23/06C08K5/11C08K5/098C08K5/057C08K5/0091C08K5/527C08K5/07C08K5/09
Inventor 沈蕾陆锋殷海青
Owner 常州恒方大高分子材料科技有限公司
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