PDF (1966K)
摘要
通过对配合体系的探究,构建以硫载体二硫化二己内酰胺(DTDC)、硫化促进剂、硅烷偶联剂及硫磺为主体的新型平衡硫化体系;软丁腈橡胶(N41)应用这种新型的平衡硫化体系,拉伸强度最好可达29MPa,断裂伸长率超过500％,通过改变促进剂、硫磺和DTDC用量,分析各项物理机械性能,比较不同硫化体系下的动态性能,探究这种平衡硫化体系在软丁腈橡胶中的应用。
Abstract
Through the exploration of the complex system,a new balanced vulcanization system based on sulfur carrier (DTDC),vulcanization accelerator,silane coupling agent,and sulfur was constructed.Soft NBR (N41) applied this new type of equilibrium vulcanization system,its vulcanizate had a shore hardness of around 72.The best tensile strength was 29MPa and elongation at break was above 500%.By changing the amount of accelerator,sulfur and DTDC,various physical and mechanical properties were analysed,compared dynamic properties in different vulcanization systems,and explored the application of this balanced vulcanization system in soft NBR.
关键词
软丁腈橡胶
/
高强度
/
硫载体二硫化二己内酰胺
/
平衡硫化体系
Key words
soft NBR
/
high strength
/
DTDC
/
equilibrium vulcanization system
软丁腈橡胶(N41)新型平衡硫化体系研究[J].
化工新型材料, 2020, 48(3): 166-169 DOI:
[1] 邓本诚,纪奎江.橡胶工艺原理[M].北京:化学工业出版社,1995,25-26.
[2] 李晓强,唐斌.软丁腈与硬丁腈的性能对比分析[J].特种橡胶制品,2003,24(1):1-3.
[3] 宋哲明,李丽贤.软丁腈橡胶替代硬丁腈橡胶的航空用混炼胶的性能研究[J].特种橡胶制品,2018,39(2):39-41.
[4] 贾颖华.橡胶硫磺硫化交联密度表征方法研究及应用[D].北京:北京化工大学,2010.
[5] Rattanasom N.白炭黑/炭黑复合填料对天然橡胶性能的影响[J].橡胶科技,2014,12(8):18-21.
[6] 刘涛,陈亚薇,刘东,等.填充橡胶的Payne效应[J].特种橡胶制品,2015,36(6):78-81.
[7] 刘大晨,梁雨,汤琦.炭黑/稻壳源白炭黑并用对天然橡胶增强作用的粒径效应[J].合成橡胶工业,2017,40(5):372-376.
[8] Scagliusi S R,Jothiramalingam R,Adam F,et al.Evaluation of ‘Payne effect’ in radiation-induced modification of chlorobutyl rubber[J].Radiation Physics and Chemistry,2013,84:42-46.
[9] Wu Y,Du Mengchen,Zheng Chongna,et al.Improved dynamic properties of natural rubber filled with irradiation-modified carbon black[J].Radiation Physics and Chemistry,2015,111:91-97.
