期刊
E-POLYMERS
卷 18, 期 3, 页码 237-245出版社
WALTER DE GRUYTER GMBH
DOI: 10.1515/epoly-2017-0204
关键词
flame retardance; phosphorus; properties; RTV; trisilanol polyhedral oligomeric silsesquioxane
资金
- Capacity Building Project of Some Local Colleges and Universities in Shanghai [17030501200]
- Talent Program of Shanghai University of Engineering Science [2017RC422017]
A novel trisilanol polyhedral oligomeric silses-quioxane-containing phosphorus (DPCP-TPOSS) was synthesized from trisilanolphenyl polyhedral oligomeric silsesquioxane (TPOSS) and diphenyl chlorophosphate. DPCP-TPOSS was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), hydrogen nuclear magnetic resonance (H-1-NMR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). Then a novel type of room-temperature vulcanized silicone rubber (RTV)/DPCP-TPOSS composite was prepared. Properties such as swelling behavior, tensile strength, elongation at break, thermal stability and flame retardance were researched and compared. Results showed that RTV/DPCP-TPOSS-3 and RTV/DPCP-TPOSS-5 composites exhibited the best tensile strength and elongation at break, 4.5 MPa and 427%, which was 25% and 32% higher than that of pure RTV. TGA tests demonstrated that RTV/DPCP-TPOSS-3 owned the highest char residues, 39.7%. T-max of RTV composites was increased from 531.9(degrees)C to 557(degrees)C with the incorporation of DPCP-TPOSS. Moreover, the addition of DPCP-TPOSS led to considerably increase of the fire-retardant performance.
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