张小菊

摘 要：针对传统利用硫磺和过氧化物硫化医用橡胶在使用过程中出现助剂析出，影响人体健康的问题。提出采用电子束辐射硫化方式制备NR/SBR橡胶材料，并对比了辐射硫化NR/SBR橡胶与传统化学硫化NR/SBR橡胶的性能差异，得到的结果为：辐射硫化NR/SBR橡胶材料受辐射敏化剂影响，拉伸强度和撕裂强度对辐射剂量的增加先增大后减小。在氯化钠浸出液中并未白色物质析出，pH值变化小于1。在液相色谱图中并未捕捉到促进剂M和TAIC等析出物，证实辐射硫化NR/SBR橡胶具有较高的医用稳定性和安全性。

关键词：NR/SBR;电子束辐射硫化;医用橡胶;医用安全性

中图分类号：TQ336.6 文献标识码：A  文章编号：1001-5922（2021）08-0046-04

Preparation of Medical Radiation Vulcanized NR/SBR Rubber material and Its Safety in Nursing

Zhang Xiaoju

（The Peoples Hospital of Yuechi County， Guang an 638300， China）

Abstract：Aiming at the problem of the precipitation of auxiliary agents during the use of traditional medical rubber vulcanized with sulfur and peroxide， which affects human health. NR/SBR rubber materials were prepared by electron beam radiation vulcanization， and the performance differences between radiation vulcanized NR/SBR rubber and traditional chemical vulcanized NR/SBR rubber were coMPared. The results showed that the radiation sensitizer affected the radiation dose of radiation vulcanized NR/SBR rubber materials， and the increase of tensile strength and tear strength on radiation dose firstly increased and then decreased. There is no white matter in the leaching solution of sodium chloride， and the change of pH value is less than 1. The precipitates such as accelerator M and TAIC were not found in the liquid chromatogram， which confirmed that the radiation vulcanized NR/SBR rubber had high medical stability and safety.

Key words：NR/SBR; electron beam radiation vulcanization; medical rubber; medical safety

隨着化学工业技术的进步，医用橡胶得到广泛使用，但医用橡胶的安全问题也受到关注。传统医用橡胶材料是通过硫磺、过氧化物化学硫化制备而成，需要大量硫化机、防老剂辅助硫化[1]，患者长期使用会析出助剂，给人们的健康带来影响。针对该问题，刘霞（2019）尝试在NR/SBR橡胶材料中加入补强剂，改善NR/SBR橡胶材料的力学性能[2];李志锋（2020）等则通过减小天然胶乳中蛋白质含量，实现硫化促进剂绿色化，同时应用新型纳米材料来提高天然胶乳医用制品使用的安全性[3]。基于以上研究，进一步改进医用橡胶的安全性，是当前的热点。基于此，本研究尝试改变医用橡胶硫化方式，采用电子束辐射硫化方式制备NR/SBR橡胶材料，以求得到一种环保且安全性能较高的医用橡胶材料。

1 材料与方法

1.1 材……