卤化丁基胶作为防毒面具罩体材料初探  

Preliminary Discussion on Halobutyl Rubber Used for Faceblank

作　　者：王得印[1] 李小银[1] 黄强[1] 李和国[1] 刘斌[1] 皇甫喜乐[1] 温世鹏[2] 连晓磊 

机构地区：[1]国民核生化灾害防护重点实验室防化研究院,北京100191 [2]北京市先进弹性体工程技术研究中心,北京化工大学100029 [3]国家橡塑密封工程技术研究中心,广州510700

出　　处：《中国个体防护装备》2016年第3期9-13,共5页China Personal Protective Equipment

摘　　要：本文研究了卤化丁基胶优良的阻隔性能,其源于分子结构中密集的侧甲基可有效限制其它小分子的热运动,但密集侧甲基所产生的较大内摩擦损耗也将导致材料的回弹性偏低。罩体材料的回弹率对防毒面具的性能具有重要影响,较低的回弹率会降低罩体与其它配合件的密合性进而导致面具气密性降低及长时间受力后制品外观发生变形等,通过卤化丁基胶与内摩擦损耗较小的胶种并用,可提高罩体材料的回弹率。High resistance of halobutyl rubber mainly derives from the dense side methyl groups on the backbones which effectively prevent other small molecules from thermal motion. However, quite amount of internal friction originated from the dense side methyl groups will result in low resilience. Influence of resilience on the properties of gas mask was considerable and should not be neglected. Low resilience will decrease the tight fit degree between faceblank and other assemblies, thus causing the increasing of risk of leakage, and furthermore, it will result in shape defromation under external forces. Blending with other rubbers with low internal friction is an alternative way to improve the resilience.

关 键 词：卤化丁基胶 罩体 回弹率 

分 类 号：TQ333.6[化学工程—橡胶工业] TS941.731.8[轻工技术与工程—服装设计与工程]