|本期目录/Table of Contents|

[1]刘海洪,阙永婵,雪冰峰,等.氯化丁基橡胶三嗪硫化体系硫化机理探讨[J].合成橡胶工业,2022,4:303-308.
 LIU Hai-hong,QUE Yong-chan,XUE Bing-feng,et al.Discussion on curing mechanism of triazine curing system for chlorinated butyl rubber[J].China synthetic rubber industy,2022,4:303-308.
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氯化丁基橡胶三嗪硫化体系硫化机理探讨(PDF)

《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]

期数:
2022年4期
页码:
303-308
栏目:
出版日期:
2022-07-15

文章信息/Info

Title:
Discussion on curing mechanism of triazine curing system for chlorinated butyl rubber
文章编号:
1000-1255(2022)04-0303-06
作者:
刘海洪阙永婵雪冰峰崔 喆刘民英付 鹏
郑州大学 材料科学与工程学院/河南省先进尼龙材料及应用重点实验室,郑州 450001
Author(s):
LIU Hai-hong QUE Yong-chan XUE Bing-feng CUI Zhe LIU Min-ying FU Peng
School of Materials Science and Engineering/Henan Key Laboratory of Advanced Nylon Materials and Applications, Zhengzhou University, Zhengzhou 450001, China
关键词:
氯化丁基橡胶三嗪硫化体系氧化镁硫化机理药用胶塞
Keywords:
chlorinated butyl rubber triazine curing system magnesium oxide curing mechanism medicinal rubber stopper
分类号:
TQ 333.6
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2022.04.0303
文献标识码:
A
摘要:
在交替变更2-正丁氨基-4,6-二巯基均三嗪(硫化剂DB)和氧化镁用量的情况下,考察了二者配合硫化氯化丁基橡胶的硫化特性和物理机械性能,并进行了傅里叶变换红外光谱和热重的分析,探讨了其硫化机理。结果表明,硫化剂DB和氧化镁配合可以很好地硫化氯化丁基橡胶,做到“无锌硫化”。在氧化镁用量固定的情况下,1.0~1.5份(质量)的硫化剂DB用量比较合适;在该硫化体系中氧化镁能起到改善焦烧、延迟硫化的作用。该交联反应的特点在于烯丙基键合的氯原子参与反应,三嗪硫醇的巯基与烯丙基氯反应并脱出氯化氢,形成碳硫键交联网络,氧化镁作为酸受体参与硫化反应。
Abstract:
Under the condition of changing amount of 2-dibutylamino-4,6-dimercapto-s-triazine (curing agent DB) and magnesium oxide alternately, the curing characteristics and physical and mechanical properties of chlorinated butyl rubber cured with them were investigated, and the curing mechanism was discussed by Fourier transform infrared spectroscopy and thermogravimetric analysis. The results showed that the combination of curing agent DB and magnesium oxide could cure chlorinated butyl rubber well and achieve “zinc free cure”. When the amount of magnesium oxide was fixed, the amount of curing agent DB of 1.0-1.5 phr (mass) was appropriate. Magnesium oxide could improve scorch and prolong curing time in the curing system. The crosslinking reaction was characterized by participation of allyl bonded chlorine atoms, the thiol group of triazine mercaptan reacted with ally chloride and disengaged hydrogen chloride to form a C—S crosslinking network, and magnesium oxide participated in the curing reaction as an acid receptor.

参考文献/References

[1] Jando T, Mori K. Crosslinking of poly(viny chloride)fibers with 2-dibutylmono 4,6-dimercapto-1,3,5-triazine in watee[J]. Polymer Journal, 1990, 22(9): 793-802.[2] He Xianru, Yu H, Wang X, et al. The influence of vulcanization agents on vulcanization kinetics of chloride butyl rubber[J]. International Polymer Processing Journal of the Polymer Processing Society, 2013, 28(4): 398-414.[3] Hendrikse K G, McGill W J. Vulcanizayion of chlorobutyl rubber (Ⅱ): A revised cationic mechanism of ZnO/ZnCl2 initiated crosslinking[J]. Journal of Applied Polymer Science, 2000, 78(13): 2302-2310.[4] Shibulal G S, Jang Jun Yeol , Je Kwang-Un, et al. Synergisitic effect of 4,4′-bis (maleimido) diphenylmethane and zinc oxide on the vulcanization behavior and thermo-mechanical properties of chlorinated isobutylene-isoprene rubber[J]. Polymers for Advanced Technologies, 2017, 28(6): 742-753.[5] 吴增青, 涂志刚, 周凯梁. PVC交联剂DB的合成与表征[J]. 江苏化工, 2002, 30(2): 39-40.[6] 宋永海, 盛锐, 怀乐, 等. DB硫化体系交联CM弹性体的研究[J]. 弹性体, 2017, 27(2): 15-18.[7] 孙亚娟, 马智勇, 江盛玲, 等. 巯基均三嗪类和有机硅烷类交联剂对聚氯乙烯糊树脂的交联改性[J]. 北京化工大学学报, 2002, 29(4): 32-35.[8] 杨建高. 交联剂PSH的合成、表征及在丁基胶塞中的应用[J]. 特种橡胶制品, 2020, 41(4): 31-33.[9] 杨建高, 崔健, 路晓娥. 2,4,6-三巯基均三嗪的应用现状及开发进展[J]. 化工中间体, 2007(7): 15-18.[10] 罗浩敏, 王辉, 曾卓, 等. 均三嗪衍生物的合成研究进展[J]. 有机化学, 2013, 33: 915-926.[11] Gopisathi S, Park C, Huh Y I, et al. Enhancing the reversion resistance, crosslinking density and thermo-methanical properties of acceterated sulfur cured chlorobutyl rubber using 4,4′-bis(maleimido) diphenyl methane[J]. Rubber Chemistry and Technology, 2019, 92(1): 110-128.[12] 胡宗智, 赵小蓉, 顾华, 等.医用包装用卤化丁基橡胶瓶塞的红外表征[J]. 包装工程, 2007, 28(5): 41-43.[13] 盛锐. 三嗪硫醇类衍生物合成及其硫化CPE的研究[D]. 安徽: 合肥工业大学, 2015.[14]梁星宇. 丁基橡胶应用技术[M]. 北京: 化学工业出版社, 2004: 169-170.

备注/Memo

备注/Memo:
2020年度河南省重点研发与推广专项(科技攻关)(202102210034)
更新日期/Last Update: 2022-07-15