Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (10): 20220384.doi: 10.7503/cjcu20220384

• Physical Chemistry • Previous Articles     Next Articles

Silicone Surfactant-enhanced Dual Networks and High Temperature Resistance Porous Silicone Elastomers

QIAO Zhenghua, FAN Qi, HAO Jingcheng()   

  1. Key Laboratory of Colloid and Interface Chemistry,Ministry of Education,Shandong University,Jinan 250100,China
  • Received:2022-05-30 Online:2022-10-10 Published:2022-08-08
  • Contact: HAO Jingcheng E-mail:jhao@sdu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(22032003)

Abstract:

A stable water-in-oil(W/O) emulsion was prepared by using polyether-modified trisiloxane surfactant, acrylate-modified silicone oil, and water. Porous organosilcone elastomers with double networks were produced after acid-base catalyzed hydrolysis, UV-initiated polymerization, and drying to remove water. Scanning electron microscope(SEM) images show that the elastomers have rich pore structures. Compressive strength tests clearly demonstrate that the elastomers have good compression resistance and still have good resilience performance under 45% compressive strain for 50 cycles. In addition, the prepared silicone elastomers have excellent high temperature resistance, and the decomposition temperature is 370 ℃, which is higher than the decomposition temperature of most silicone elastomers. The preparation technology of acrylate modified silicone oil is mature, cheap and easy to obtain, which significantly reduces the production cost of porous silicone elastomer, and provides a new idea and application prospect for large-scale development of silicone materials.

Key words: Silicone surfactant, Silicone elastomer, Water-in-oil emulsion, Double networks, High temperature resistance

CLC Number: 

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