Rubber plug material for blood specimen collection and preparation method thereof

A technology for collecting blood samples and rubber plugs, which is applied in the field of rubber plug materials for collecting blood samples and their preparation, and can solve the problems of influence, poor performance, poor sealing performance and the like

Active Publication Date: 2014-07-09
应城市恒天药业包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the material performance of the existing rubber stoppers for oral liquids is not good, and there are defects such as high difficulty in processing and poor sealing performance, and some of them also release some odors, which will have a certain impact on users.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The present invention is formed by mixing the following raw materials according to weight percentage: 40% of butyl rubber, 20% of ethylene-propylene copolymer, 30% of filler, 9% of phenolic resin, 1% of coloring agent, and the filler consists of pottery clay, talcum powder, white carbon Black is mixed in a weight ratio of 2:1:1; the viscosity-average molecular weight of butyl rubber is 80,000, the Mooney viscosity ML1+8 (100 °C) is 40 to 70, and the degree of unsaturation is 0.7~1.5mol%. The melting point of ethylene-propylene copolymer is ≤120°C. The preparation method is that the above-mentioned materials are kneaded in a mixer, mixed at 130°C to 190°C, preferably at 140°C to 160°C, and molded by compression molding or injection molding.

Embodiment 2

[0015] The present invention is formed by mixing the following raw materials according to weight percentage: 30% of butyl rubber, 15% of ethylene-propylene copolymer, 50% of filler, 3.5% of phenolic resin, 1.5% of coloring agent, and the filler consists of clay, talcum powder, white carbon Black is mixed in a weight ratio of 2:1:1; the viscosity-average molecular weight of butyl rubber is 80,000, the Mooney viscosity ML1+8 (100 °C) is 40 to 70, and the degree of unsaturation is 0.7~1.5mol%. The melting point of ethylene-propylene copolymer is ≤120°C. The preparation method is that the above-mentioned materials are kneaded in a mixer, mixed at 130°C to 190°C, preferably at 140°C to 160°C, and molded by compression molding or injection molding.

Embodiment 3

[0017] The present invention is formed by mixing the following raw materials according to weight percentage: 40% of butyl rubber, 10% of styrene-based elastomer, 50% of filler, 9.5% of phenolic resin, 0.5% of colorant, and the filler consists of clay, talcum powder, white carbon Black is mixed in a weight ratio of 2:1:1; the viscosity-average molecular weight of butyl rubber is 80,000, the Mooney viscosity ML1+8 (100 °C) is 40 to 70, and the degree of unsaturation is 0.7~1.5mol%. The melting point of ethylene-propylene copolymer is ≤120°C. The preparation method is that the above-mentioned materials are kneaded in a mixer, mixed at 130°C to 190°C, preferably at 140°C to 160°C, and molded by compression molding or injection molding.

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Abstract

The invention relates to a chemical material, and particularly relates to a material for blood specimen collection and a preparation method thereof. The material for blood specimen collection is prepared by mixing the following raw materials in percentage by weight: 20-40% of synthetic rubber, 10-20% of thermoplastic elastomer, 30-50% of filler, 3-10% of crosslinking agent and 0.5-1.5% of colorant, wherein the synthetic rubber is butyl rubber, polyisobutylene rubber or halogenated butyl rubber; the thermoplastic elastomer is styryl elastomer or polyolefin thermoplastic elastomer; the filler is one or more of argil, talcum powder and white carbon black; the crosslinking agent is metal oxide or phenol formaldehyde resin; and the colorant is titanium white, carbon black or a mixture thereof. According to the invention, the prepared rubber plug material for an oral liquid has good mechanical strength and elasticity, can meet the operation requirements and processing requirements of the rubber plug for an oral liquid, and can also meet the requirements for the compatibility of liquid medicine which is in contact with the rubber plug after sealing.

Description

technical field [0001] The invention relates to a rubber material, in particular to a rubber plug material for collecting blood samples and a preparation method thereof. Background technique [0002] Currently, there are many types of rubber stoppers for collecting blood samples in the market, and the materials are various. However, the existing rubber stoppers for oral liquids have poor material properties, have the defects of high processing difficulty and poor sealing performance, and some of them also release some odors, which will have a certain impact on users. Contents of the invention [0003] The object of the present invention is aimed at the defects of the existing oral liquid rubber plug material formula, and provides a kind of rubber plug material for collecting blood samples, which can not only meet the use requirements and processing requirements of the oral liquid rubber plug, but also meet the requirements for the contact of the oral liquid rubber plug aft...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/22C08L23/28C08L25/04C08L23/16C08L61/06C08K3/00C08K3/34C08K3/36C08K3/22C08K3/04
Inventor 夏汉桥黄爱华张雾云
Owner 应城市恒天药业包装有限公司
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