Study on the thermal stability and ablation properties of metallic oxide-filled silicone rubber composites using uniform design method
-
Rui Li
and
Mei Liang
Abstract
The thermal stability and ablation properties of silicone rubber composites filled with Fe2O3, SnO2, CuO, MgO, and Al2O3 were researched using thermogravimetric analysis (TGA) and the oxyacetylene torch test. The effecting laws of metallic oxide on the thermal stability and ablation properties of silicone rubber composites were analyzed by uniform design method. TGA indicated that the thermal degradation process of silicone rubber composites took a two mass loss steps. The effecting order of metallic oxide on enhancing thermal stability property of silicone rubber composites in step 1 was MgO>SnO2> Fe2O3>Al2O3>CuO, whereas the order in step 2 was CuO> SnO2>MgO>Fe2O3>Al2O3. Furthermore, Fe2O3 and SnO2 had an evident synergistic effect on enhancing the thermal stability property and residual carbon of silicone rubber composites. The oxyacetylene torch test showed that the effecting order of metallic oxide on increasing ablation resistance property of silicone rubber composites in ablation process was CuO>MgO>Fe2O3>SnO2>Al2O3. Moreover, the line ablation rate of specimen 2 was 0.0499, which indicated that it had the best ablation resistance among all uniform samples. Furthermore, scanning electron microscopy also showed that the porous ceramic layer became much denser after the ablation process, and this will significantly improve the ablation resistance property.
Acknowledgments
The authors would like to thank the National Natural Science Foundation of China (51273118) and the Science and Technology Pillar Program of Sichuan (2013FZ0006) for financial support and the Analytical and Testing Center of Sichuan University for providing SEM measurement.
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Articles in the same Issue
- Frontmatter
- Original articles
- Levofloxacin loaded gelrite-cellulose polymer based sustained ocular drug delivery: formulation, optimization and biological study
- Tailoring the in vitro characteristics of poly(vinyl alcohol)-nanohydroxyapatite composite scaffolds for bone tissue engineering
- Effect of nonthermal plasma treatment on the surface of dental resins immersed in artificial saliva
- Spray dried hydroxyapatite-polyvinyl alcohol biocomposites
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- NR/SBR composites reinforced with organically functionalized MWCNTs: simultaneous improvement of tensile strength and elongation and enhanced thermal stability
- The control and optimization of the curing process of epoxy coatings: a case of poly(glycidoxy siloxane) resins
- Effect of γ irradiation on the impact response of rigid polyurethane foam
- Effects of fiber surface modification on the friction coefficient of luffa fiber/polyester composites under dry sliding condition
- Effect of surface modification on the compressive properties of silica fume/polyurethane composites
- Weldability of pipe grade polyethylenes as realized from thermal and mechanical properties assessments
- Analysis on vibration characteristics of screw in filling process of dynamic injection molding machine
