|本期目录/Table of Contents|

[1]孙 豪,张家平,汤 琦,等.结构化控制剂种类及配比对硅橡胶性能的影响[J].合成橡胶工业,2021,6:481-487.
 SUN Hao,ZHANG Jia-ping,TANG Qi,et al.Effect of type and proportion of structure control agents on properties of silicone rubber[J].China synthetic rubber industy,2021,6:481-487.
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结构化控制剂种类及配比对硅橡胶性能的影响(PDF)

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

期数:
2021年6期
页码:
481-487
栏目:
出版日期:
2021-11-10

文章信息/Info

Title:
Effect of type and proportion of structure control agents on properties of silicone rubber
文章编号:
1000-1255(2021)06-0481-07
作者:
孙 豪张家平汤 琦王庆富宗成中*
青岛科技大学 高分子科学与工程学院,山东 青岛 266042
Author(s):
SUN Hao ZHANG Jia-ping TANG Qi WANG Qing-fu ZONG Cheng-zhong
(School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
关键词:
硅橡胶结构化控制剂力学性能耐热性能
Keywords:
silicone rubber structure control agent mechanical property heat resistance
分类号:
TQ 333.93
DOI:
10.19908/j.cnki.ISSN1000-1255.2021.06.0481
文献标识码:
B
摘要:
以甲基乙烯基硅橡胶为生胶、2,5-二甲基-2,5-双(叔丁基过氧基)乙烷为硫化剂,通过添加白炭黑和结构化控制剂并采用二段硫化工艺制得热硫化硅橡胶,研究了结构化控制剂种类及并用比例对热硫化硅橡胶力学性能和耐热性能的影响。结果表明,端羟基甲基苯基硅油(OH-PMPS)的加入对硅橡胶的硬度、撕裂强度、回弹性和耐热性能有较大的提升,但是当其用量过大时会导致硅橡胶的强度有所下降;而六甲基二硅氮烷(HMDS)与羟基硅油(OH-PDMS)的加入分别有助于提高材料的拉伸强度和扯断伸长率,当HMDS用量为4份、OH-PDMS和OH-PMPS用量均为2份时,对硅橡胶综合性能的提升效果最佳。
Abstract:
The heat curing silicone rubber was prepared with methyl vinyl silicone rubber as raw rubber and 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane as curing agent by the additon of silica and structural control agents via two-stage vulcanization.The effects of the type and combined proportion of structure control agents on the mechanical properties and heat resistance of heat curing silicone rubber were studied.The results showed that the addition of hydroxymethyl phenyl silicone oil (OH-PMPS) could greatly improve the hardness, tear strength, rebound resilience and heat resistance of silicone rubber, but when the amount of OH-PMPS was too large, the tensile strength of silicone rubber would decrease.However, hexamethyldisilazane (HMDS) and hydroxyl silicone oil (OH-PDMS) could improve the tensile strength and elongation at break of the materials, respectively.When the amount of HMDS was 4 phr and the amount of OH-PDMS and OH-PMPS was both 2 phr, the comprehensive performance of silicone rubber was better.

参考文献/References

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备注/Memo

备注/Memo:
收稿日期:2021-03-06;修订日期:2021-07-23。
作者简介:孙豪(1997—),男,河南许昌人,硕士研究生。主要从事高分子材料合成、结构和性能研究工作。
*通讯联系人。
更新日期/Last Update: 2021-11-10