溴化丁基橡胶耐热性能研究

摘要本文主要研究了不同牌号溴化丁基橡胶（BIIR）的耐热性能以及配合体系（炭黑含量，增塑剂含量）对BIIR及其硫化胶硫化特性和耐热性能的影响。采用热重分析法对耐热性能进行了测定，并对不同牌号和配合体系的BIIR硫化胶的耐热性进行了分析和比较。通过对各项性能进行测定和分析，结果表明：牌号为BIIR2222硫化胶的耐热性能是最好的；在炭黑含量小于40phr时，炭黑的加入具有促进硫化的作用，但随着炭黑含量的继续增加，出现了延迟硫化的现象，硫化速度减慢，硫化时间变大；少量炭黑的加入降低了BIIR硫化胶的耐热性能，当炭黑含量达到30phr后，热稳定性随炭黑含量不断提升，在55 phr时达到最大值，最大失重速率时的温度相比未填充的BIIR硫化胶提升了17℃；随着增塑剂含量的提高，焦烧时间和正硫化时间变化不是很明显，最小转矩、最大转矩和转矩差值均有明显的下降趋势；BIIR硫化胶的热稳定性随着增塑剂含量的增加不断降低。 64132

毕业论文关键词：溴化丁基橡胶热稳定性硫化特性炭黑增塑剂

毕业设计说明书（论文）外文摘要

Title ： Studies on Thermal Properties Of Bromobutyl rudders

Abstract

The cure characteristics and thermal stability of bromobutyl rubber (BIIR) with different brand (including BIIR 2255, BIIR 2222, BIIR 2211, BIIR 2030, BIIR-C), different carbon black content and different plasticizer content were investigated. The results show that: BIIR2222 vulcanizates show the best thermal stability compared to other brands. With the content of carbon black increased up to 40 phr, BIIR show an improved cure characteristics with decreased cure time and increased cure rate, while the further addition of carbon black is etrimental to curing properties. The addition of small amount of carbon black reduced the thermal stability of BIIR vulcanizates, as the content of carbon black up to 30 phr the thermal stability of BIIR vulcanizates increased with the addition of carbon black and reached a maximum at the 55 phr carbon black, which the temperature at the maximum rate improved by 17℃ compared with the unfilled BIIR. With the increasing content of plasticizer, the cure rate, maximum torque, minimum torque and thermal stability of BIIR vulcanizates decreased.

Keywords: Bromobutyl rudder, Thermal stability, Cure characteristics, Carbon black, Plasticizer

1 绪论 1

1．1 溴化丁基橡胶的结构 1

1．2 溴化丁基橡胶的特性 2

1．3 溴化丁基橡胶的配合体系 3

1.3.1 硫化体系 3

1.3.2 补强体系 4

1.3.3 增塑体系 4

1.3.4 其它体系 4

1．4 溴化丁基橡胶的耐热性应用研究 5

1.4.1 在汽车轮胎方面的应用 5

1.4.2 在医药用瓶塞上的应用 5

1.4.3 溴化丁基橡胶耐热性能研究:http://www.751com.cn/huaxue/lunwen_71077.html