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- Title
Effect of hybrid hollow microspheres on thermal insulation performance and mechanical properties of silicone rubber composites.
- Authors
Zhao, Xiong‐Wei; Zang, Chong‐Guang; Sun, Ya‐Lun; Zhang, Yu‐Long; Wen, Yu-Quan; Jiao, Qing‐Jie
- Abstract
ABSTRACT Hollow microspheres (HM) of ceramic, silica, and glass-filled silicone rubber (SR) composites were prepared, and the effects of hybrid HM on thermal and mechanical properties of composites were investigated. The results indicate that hybrid HM can effectively improve the thermal insulation property of HM/SR composites. Especially, for sample 15S, the thermal conductivity and thermal degradation temperature reached 0.1273 W/m K and 521 °C (45 °C higher than that of neat SR), respectively. Besides, thermal insulation performance was improved, showing as a temperature of 103.2 °C after 15 min heating, which is 37.8 °C lower than that of SR. The tensile strength of composites was enhanced from 1.92 MPa at 11.56 vol % hollow silica microspheres (HSM) loading to 3.08 MPa at 21.88 vol % HSM loading. Moreover, the compressive strength was improved from 3.33 to 5.68 MPa by introducing more hollow ceramic microspheres into the matrix, in this case, from 7.79 to 15.33 vol %. Furthermore, the failure mechanism was analyzed. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46025.
- Subjects
MICROSPHERES; THERMAL insulation; MECHANICAL behavior of materials; SILICONE rubber insulators; SILICONE rubber; COMPOSITE materials
- Publication
Journal of Applied Polymer Science, 2018, Vol 135, Issue 11, pn/a
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.46025