Effect of Surface-modified Clay on the Thermal Stability and Insulation of Polyorganosiloxane Foam

doi:10.1007/s40242-016-6002-0

高等学校化学研究 ›› 2016, Vol. 32 ›› Issue (5): 867-871.doi: 10.1007/s40242-016-6002-0

Effect of Surface-modified Clay on the Thermal Stability and Insulation of Polyorganosiloxane Foam

ZHANG Chunling, HUANG Rong, HOU Jiazi, LI Aiming, HOU Xiaoman, GU Xiaoyan

College of Materials Science and Engineering, Jilin University, Changchun 130025, P. R. China

收稿日期:2016-01-04 修回日期:2016-06-24 出版日期:2016-10-01 发布日期:2016-08-08
通讯作者: GU Xiaoyan E-mail:guxy@jlu.edu.cn
基金资助:
Supported by the International Cooperative Project of Jilin Provincial Science and Technology Department, China(No. 20130413048GH).

Effect of Surface-modified Clay on the Thermal Stability and Insulation of Polyorganosiloxane Foam

ZHANG Chunling, HUANG Rong, HOU Jiazi, LI Aiming, HOU Xiaoman, GU Xiaoyan

College of Materials Science and Engineering, Jilin University, Changchun 130025, P. R. China

Received:2016-01-04 Revised:2016-06-24 Online:2016-10-01 Published:2016-08-08
Contact: GU Xiaoyan E-mail:guxy@jlu.edu.cn
Supported by:
Supported by the International Cooperative Project of Jilin Provincial Science and Technology Department, China(No. 20130413048GH).

摘要/Abstract

摘要：

Polyorganosiloxane foam(SIF) nanocomposites reinforced with vinyl-modified montmorillonite(Mt-V) and hydrox-yl-modified montmorillonite(Mt-OH) were prepared through cross-linking and foaming. The effects of modified Mt on the density, pore morphology, and thermal and compressive properties of the prepared polyorganosiloxane foams were investi-gated. The structure of the polyorganosiloxane foam was studied by solid-state nuclear magnetic resonance analysis. Clay dispersion in polyorganosiloxane nanocomposites and pore morphology were investigated by X-ray diffraction and scan-ning electron microscopy analyses. The thermal and mechanical properties of the prepared materials were also evaluated by differential scanning calorimeter, thermogravimetric analysis, thermal diffusivity and compressive strength. The results show that Mt-V exhibits improved cell structure, thermal insulation, and crush compressive than Mt-OH. The addition of modified Mt reduces the density, cell size, and thermal conductivity but increases the high-temperature resistance and com-pressive strength of the nanocomposite. The amount of the residues of SIF/Mt-OH nanocomposites increases by 9% com-pared with that of the pure SIF. Furthermore, SIF/Mt-V decreases the thermal conductivity to 0.014 W/mK and the cell size to 98 μm. Those properties give the material potential application value in the aerospace and construction industry.

关键词: Polyorganosiloxane foam, Modified montmorillonite, Thermal property, Mechanical property

Abstract:

Key words: Polyorganosiloxane foam, Modified montmorillonite, Thermal property, Mechanical property

ZHANG Chunling, HUANG Rong, HOU Jiazi, LI Aiming, HOU Xiaoman, GU Xiaoyan. Effect of Surface-modified Clay on the Thermal Stability and Insulation of Polyorganosiloxane Foam[J]. 高等学校化学研究, 2016, 32(5): 867-871.

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Effect of Surface-modified Clay on the Thermal Stability and Insulation of Polyorganosiloxane Foam

Effect of Surface-modified Clay on the Thermal Stability and Insulation of Polyorganosiloxane Foam

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