|本期目录/Table of Contents|

[1]刘 旭,林新志,王雯霏,等.宽温域阻尼材料用嵌段溶聚丁苯橡胶的合成与性能[J].合成橡胶工业,2022,6:462-468.
　LIU Xu,LIN Xin-zhi,WANG Wen-fei,et al.Synthesis and properties of block solution-polymerized styrene-butadiene rubber for damping material with broad temperature range[J].China synthetic rubber industy,2022,6:462-468.
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宽温域阻尼材料用嵌段溶聚丁苯橡胶的合成与性能(PDF)

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

期数:
2022年6期
页码:
462-468
栏目:
出版日期:
2022-11-15

文章信息/Info

Title:
Synthesis and properties of block solution-polymerized styrene-butadiene rubber for damping material with broad temperature range
文章编号:
1000-1255（2022）06-0462-07
作者:
刘 旭; 林新志; 王雯霏; 刘金才; 赵忠夫; 何 坤1; 张春庆
1. 大连理工大学化工学院 高分子材料系， 辽宁 大连 116024； 2. 中国船舶集团有限公司第七二五研究所， 河南 洛阳 471023
Author(s):
LIU Xu1;  LIN Xin-zhi2;  WANG Wen-fei2;  LIU Jin-cai2;  ZHAO Zhong-fu1;  HE Kun1;  ZHANG Chun-qing1
1. Department of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; 2. Luoyang Ship Material Research Institute, Luoyang 471023, China
关键词:
活性负离子聚合; 嵌段溶聚丁苯橡胶; 阻尼材料; 玻璃化转变温度; 阻尼性能
Keywords:
living anionic polymerization;  block solution-polymerized styrene-butadiene rubber;  damping material;  glass transition temperature;  damping propery
分类号:
TQ 333.6
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2022.06.0462
文献标识码:
A
摘要:
以苯乙烯和丁二烯为单体、正丁基锂为引发剂、2,2-二(四氢呋喃)丙烷为调节剂、环己烷为溶剂，采用活性负离子聚合技术设计并合成出两段组成及比例不同的嵌段型溶聚丁苯橡胶（SSBR），使用核磁共振波谱仪和凝胶渗透色谱仪表征其微观结构、化学组成和分子量及其分布，并采用橡胶拉力机和动态机械分析仪分别对嵌段SSBR硫化胶的力学性能和动态力学性能进行测试。结果表明，嵌段SSBR分子结构满足设计要求；嵌段SSBR硫化胶具有较好的力学性能和动态力学性能；嵌段SSBR的软段与硬段的质量比越高，有效阻尼温域越宽；当软段为结合苯乙烯含量更低的链段，嵌段SSBR有效阻尼温域进一步拓宽；当嵌段SSBR两段结合苯乙烯结构单元质量分数分别为15%和50%且二者质量比为7/3时，损耗因子不小于0.3时的温域超过53 ℃。
Abstract:
Block solution-polymerized styrene-butadiene rubber (SSBR) with two different compositions and ratios was designed and synthesized by living anionic polymerization with styrene and butadiene as monomers, n-butyllithium as initiator, 2,2-bis(tetrahydrofuran)propane as modifier, and cyclohexane as solvent. The microstructure, chemical composition and molecular weight and its distribution of the block SSBR were characterized by proton nuclear magnetic resonance spectrometer and gel permeation chromatographer, and the mechanical properties and dynamic mechanical properties of the block SSBR vulcanizate were analyzed by rubber tension machine and dynamic mechanical analyse respectively. The results showed that the molecular structure of the block SSBR met the desired molecular structure. The vulcanizate had good mechanical properties and dynamic mechanical properties. The higher the mass ratio of the soft block to the hard block of the block SSBR, the wider the damping temperature range. As the soft block had lower bound styrene content, the damping temperature range of the block SSBR was more widened. When mass fraction of bound styrene of the two blocks of block SSBR was 15% and 50%, and the mass ratio was 7/3, the efficient damping temperature range exceeded 53 ℃ with loss factor of not less than 0.3.

参考文献/References

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更新日期/Last Update: 2022-11-15