| KH550改性CM弹性体及其水浴交联研究 |
| Study of CM elastomer modified by KH550 and its crosslinking in water bath |
| 投稿时间：2016-08-22 修订日期：2016-08-22 |
| DOI： |
| 中文关键词: 氯化聚乙烯橡胶,γ-氨丙基三乙氧基硅烷,改性,交联,水浴 |
| 英文关键词: CM elastomer γ-aminopropyltriethoxysilane modification crosslinking water bath |
| 基金项目: |
|
| 摘要点击次数: 1381 |
| 全文下载次数: 760 |
| 中文摘要: |
| 本文采用γ-氨丙基三乙氧基硅烷(KH550)改性氯化聚乙烯弹性体(CM),二丁基二月桂酸锡(DBTDL)为硅烷水解缩合催化剂,以交联样品的凝胶含量为主要对象,研究了不同的水与DBTDL环境对改性CM交联的影响与动力学特性。研究中,采用傅里叶变换红外光谱(FTIR)和热机械分析(TMA)对交联样品的结构与热行为进行了分析表征,并探讨了影响改性CM交联的主要因素。结果表明,硅烷改性-水浴法是CM交联的有效方式,DBTDL浓度、外部环境的水含量、水浴条件均对改性CM的交联有显著影响。 |
| 英文摘要: |
| In the present study, chlorinated polyethylene elastomer (CM) was modified with γ-aminopropyltriethoxysilane (KH550). Then, under catalysis of dibutyltin dilaurate (DBTDL), the modified CM was crosslinked in a water bath via hydrolysis-condensation of KH550. The study was mainly focused on gel content of the cured CM, the affects of water concentration and DBTDL concentration on curng CM and its kinetics characteristics were investigated in detail. Besides, the crosslinked CM was characterized by FTIR and TMA, and the main factors that influence curing of the modified CM were also discussed. The results showed that silane crosslinking technology is an efficient route to cure CM, and either the concentration of DBTDL and H2O in the external environment, or temperatures and times of the sample were immersed in a water bath played important roles in crosslinking the modified CM. |
|
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
