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High-efficiency antibacterial medical polyvinyl chloride elastomer

A technology of polyvinyl chloride and elastomer, which is applied in the field of high-efficiency antibacterial medical polyvinyl chloride elastomer, can solve the problems of unguaranteed aseptic effect, insufficient elasticity, long sterilization cycle, etc., and achieve the reduction of ethylene oxide Harmful to the environment and human body, excellent resilience, and good processing performance

Active Publication Date: 2020-04-17
上海新上化高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention solves the problems of the current medical PVC plastic ethylene oxide sterilization cycle is long, the sterility effect cannot be guaranteed during the storage period, and the elasticity is insufficient, and provides a kind of physical performance, chemical performance and biological performance that meet GB15593 1995 Relevant requirements for soft polyvinyl chloride plastics for blood transfusion (liquid) equipment, medical PVC plastics with excellent resilience, antibacterial and antibacterial effects, and its preparation method

Method used

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  • High-efficiency antibacterial medical polyvinyl chloride elastomer
  • High-efficiency antibacterial medical polyvinyl chloride elastomer
  • High-efficiency antibacterial medical polyvinyl chloride elastomer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Weigh 100 parts of polyvinyl chloride resin (polymerization degree 2000), 70 parts of plasticizer DOP, 50 parts of elastomer EVA, 6 parts of auxiliary plasticizer ESO, 1 part of high-efficiency antibacterial agent, heat stabilizer (CaSt, ZnSt mixture) 1 parts, 0.3 parts of lubricant oxidized polyethylene.

[0042] A kind of preparation method of high-efficiency antibacterial agent, its concrete steps are: take 1-vinyl-3-ethyl imidazolium bromide and cyclopentadiene as raw material, azobisisobutyronitrile (AIBN) as initiator, in reaction The temperature is 45-60°C, the raw materials and the initiator are mixed evenly, and then reacted under nitrogen protection, the reaction time is controlled to be 4-6 hours, so that the conversion rate of the monomer is more than 96%, and the polymer antibacterial agent is prepared. The molar ratio of 1-vinyl-3-ethylimidazolium bromide to cyclopentadiene is 1:1, and the initiator is controlled to be 0.2wt% of the total mass of the two r...

Embodiment 2

[0049] Weigh 100 parts of PVC resin (polymerization degree 2500), 80 parts of plasticizer DOP, 30 parts of elastomer NBR, 8 parts of auxiliary plasticizer ESO, 3 parts of high-efficiency antibacterial agent, 1.5 parts of heat stabilizer (CaSt, ZnSt mixture) , 0.5 parts of lubricant polyamide wax.

[0050] The preparation method is the same as in Example 1.

Embodiment 3

[0060] The application also provides a polyvinyl chloride / polyurethane elastomer medical material, the parts by weight of the raw material components are:

[0061]

[0062] The preparation method of polyvinyl chloride / polyurethane elastomer medical material comprises the steps:

[0063] 1. Premix each component in a kneader at 100°C to 150°C to obtain a premix;

[0064] 2. Add the above-mentioned premixed materials into a two-stage extruder, plasticize, extrude and granulate at 120°C to 180°C to obtain the product.

[0065] Polyvinyl chloride / polyurethane elastomer material has excellent cold resistance, which is tested according to the GB / T 5470-2008 standard. The cold resistance performance is as follows: it can be used for a long time at -50 ° C ~ -60 ° C, and can be used to make blood bags Or other blood product packaging materials and medical materials for other purposes.

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Abstract

The invention relates to a high-efficiency antibacterial medical polyvinyl chloride elastomer. The high-efficiency antibacterial medical polyvinyl chloride elastomer is prepared by taking polyvinyl chloride resin as a matrix, a plasticizer as a second component, an elastomer as a third component and a high-efficiency antibacterial agent as a functional aid, adding an auxiliary plasticizer, a heatstabilizer and a lubricant, and performing blending modification processing. The prepared high-efficiency antibacterial medical polyvinyl chloride elastomer is stable in physical performance and chemical performance, has excellent high-strength, high-elasticity and high-toughness characteristics, and is suitable for preparing special medical instruments with high elasticity requirements; the prepared product has sterilization and antibacterial effects, the ethylene oxide sterilization period can be shortened, and the sterilization efficiency is improved; secondary pollution of the medical instruments can be effectively prevented, the anti-pollution characteristic is achieved, and the purposes of effective sterilization and long-acting antibiosis are achieved.

Description

technical field [0001] The invention relates to the technical field of medical consumables, in particular to a high-efficiency antibacterial medical polyvinyl chloride elastomer. Background technique [0002] Polyvinyl chloride (PVC) is widely used in the field of medical consumables, such as medical pipelines and injection molding products, especially in blood preservation materials, due to its cheapness, good processing performance, good air permeability, and safety. There is no complete substitute material. The application of medical PVC materials in the field of disposable transfusion (blood) consumables has brought great convenience to people's production and life, but there are still some problems that need to be improved urgently. First of all, there are problems of environmental pollution, long sterilization cycle and low efficiency in ethylene oxide sterilization technology. At present, most disposable PVC consumables such as infusion sets in my country use ethyle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/08C08L9/02C08L75/04C08L39/04C08L45/00C08L23/30C08K5/12C08K5/098C08F226/06C08F232/06
CPCC08L27/06C08F226/06C08F232/06C08L2205/035C08L23/0853C08L9/02C08L75/04C08L39/04C08L45/00C08L23/30C08K5/12C08K5/098
Inventor 唐艳芳徐晓辉王芹徐永卫
Owner 上海新上化高分子材料有限公司
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