环境条件对丁腈基遇水膨胀橡胶性能的影响  

Influence of working condition on properties of water-swellable nitrile-butadiene rubber

作　　者：刘阳[1] 韩峰[1] 侯乃贺[1] 

机构地区：[1]中国石化石油工程技术研究院,北京100101

出　　处：《弹性体》2016年第4期56-59,共4页China Elastomerics

基　　金：中国石化油田事业部项目(YTXD-PT1306D)

摘　　要：遇水膨胀橡胶(WSR)是一种由弹性体和亲水性物质组成的新型高分子功能材料,以丁腈橡胶为基体,选用自制的耐盐耐高温吸水树脂为主要原料,以炭黑和白炭黑混用作为补强剂,与其它各种添加剂经机械共混制得WSR。研究了WSR材料试样厚度、盐度、pH值以及温度等环境因素对其吸水性能的影响。结果表明,随着试样厚度的增加,WSR吸水性能降低;在实验温度范围内,随着温度的升高,WSR的平衡吸水膨胀率和吸水膨胀率逐渐增加;随着NaCl溶液浓度增加,WSR吸水膨胀率和平衡吸水膨胀率下降;pH值对WSR的吸水性能的影响不明显,当pH值为7时,其吸水能力最佳。Water-swellable rubber（WSR） is a novel functional material,which is made by NBR as matrix mixed with the ASP and all kinds of other additives.Specimen thickness and the impact of envi- ronmental factors of salinity,pH value and temperature on the swelling properties of WSR were analyzed.With the increase of the specimen thickness, WSR absorption ability reduces. The equilibrium swelling ratio of WSR increases as the temperature increases. On the contrary, the swelling rate and equilibrium swelling ratio of WSR decreases when the concentration of salinity increases.The pH value has no clear influence on the mass absorption rate of WSR,and the rate reaches a summit as the pH value reaches 7.

关 键 词：遇水膨胀橡胶 试样厚度 盐度 温度 PH值 

分 类 号：TQ333.7[化学工程—橡胶工业]