钛系异戊二烯橡胶的合成及性能表征
Synthesis and properties characterization of isoprene rubber using titanium catalyst system
戴立平 1李尚英 1刘继红 1陈移姣 1张建国1
作者信息
- 1. 中国石化巴陵石化公司合成橡胶事业部橡塑中心,湖南岳阳414014
- 折叠
摘要
以异戊二烯(Ip)为单体,Al(i- Bu)3(简称Al)/TiCi4(简称Ti)为催化剂(以100 g lp计,Al、Ti的用量分别为2.27～3.77 mmol、4.08 ～6.81 mmol),芳香醚为活化剂,合成了异戊二烯橡胶(IR),考察合成钛系IR的影响因素,并将合成的钛系IR与日本Zeon公司生产的钛系IR的性能进行对比.结果表明,采用Al/Ti/芳香醚体系,可合成出顺式-1,4-结构质量分数大于97.00％的IR,适宜的Al/Ti(摩尔比)为0.9～1.2；合成的钛系IR的顺式-1,4-结构含量和硫化胶的物理机械性能与Zeon公司生产的钛系IR相当.
Abstract
The isoprene rubber (IR) was synthesized using isoprene(lp) as monomer, Al( I-Bu)3 ( simplified as Al)/ TiCi4 ( simplified as Ti) as catalyst ( level of Al and Ti was 2.21-5.11 mmol, 4.08 -6.81 mmol respectively every 100 g Ip) , and aromatic ether as activator. The effect factors on synthesis IR were studied, and the properties between self-made Ti based IR(Ti-IR) and the one manufactured by Zeon Company in Japan were compared. The results showed thatthe Ti-IR with mass fraction of cis-1 ,4-unit beyond 97. 00% could be obtained in Al/Ti/aromatic ester system at Al/Ti ( mole ratio) of 0. 9 - 1. 2. The cis-1 ,4- unit content of synthesized Ti-IR and the mechanical properties of its vulcani-zates were about similar to Zeon's Ti-IR.
关键词
异戊二烯橡胶/铝-钛催化体系/顺式-1,4-结构/物理机械性能Key words
isoprene rubber/aluminum-titanium catalyst system/cis-1,4-unit/mechanical property引用本文复制引用
出版年
2011
NETL
NSTL
维普
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