Preparation and Properties of Underwater Curing Elastomeric Sealant/SiO2 Nanocomposites

被引：0
|
作者：
Su G. [1 ,2 ]
Luo Y. [1 ]
Li F. [3 ]
Chen S. [1 ]
Yang H. [1 ]
Ma C. [2 ]
机构：
[1] College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou
[2] Key Laboratory of Oil and Gas Drilling and Production Engineering, Petroleum Engineering College, Yangtze University, Wuhan
[3] Research Institute of Petroleum Engineering, SINOPEC, Beijing
来源：
Luo, Yue (lyue1958@163.com) | 2018年 / Sichuan University卷 / 34期
关键词：
Elastomeric sealant; Glass-transition temperature; Underwater curing; Working life;
D O I：
10.16865/j.cnki.1000-7555.2018.06.030
中图分类号：
学科分类号：
摘要：
The underwater curing with high elasticity and high bonding ability sealant was fabricated using elastic epoxy resin and water-repelling curing agent. The best system was 100 phr MS-1086T elastic epoxy resin, 80 phr water-repelling curing agent and 10% oil soluble nano-SiO2 (H-nano-SiO2). The property of sealant was investigated by universal material tester, DMA and scanning electron microscopy (SEM). The results indicate that when the addition of curing agent increases, the strain increases from 99.50% to 173.10%, the tensile strength and lap-shear strength reduce from 4.80 MPa to 1.75 MPa and 7.02 MPa to 2.98 MPa, respectively. The results of DMA indicate that Tg rises up to 70.55℃ with the increase of nano-SiO2 content, and Tg decreases to 8.36℃ with the increase of H-nano-SiO2 content. The simulation experiment shows that the system has good performance of splicing flexible riser at 80℃ and the working life is about 22.70 year. © 2018, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：171 / 178
页数：7
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