| PC/POSS复合材料的制备及热性能 |
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| 引用本文： | 蔡华轮,许凯,刘欢,苏江勋,刘新,付子恩,陈鸣才.PC/POSS复合材料的制备及热性能[J].高分子材料科学与工程,2011(12):114-118. |
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| 作者姓名： | 蔡华轮 许凯 刘欢 苏江勋 刘新 付子恩 陈鸣才 |
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| 作者单位： | 中国科学院广州化学所电子有机聚合物材料省重点实验室;中国科学院研究生院 |
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| 摘 要： | 合成及表征了八苯基倍半硅氧烷（PH-POSS）、γ-甲基丙烯酰氧丙基倍半硅氧烷（MA-POSS）,并利用差示扫描量热（DSC）和热重分析（TGA）分别研究其在聚碳酸酯（PC）体系中对体系热性能的影响。研究结果表明,复合材料Tg随着PH-POSS含量的增加而降低;而随着MA-POSS含量的增加基本不受影响。在氮气中,复合...
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| 关 键 词： | 聚碳酸酯 复合材料 笼型倍半硅氧烷 热稳定性 |
Preparation and Thermal Properties of PC/POSS Composites |
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| Hualun Cai,Kai Xu,Huan Liu,Jiangxun Su,Xin Liu,Zien Fu,Mingcai Chen.Preparation and Thermal Properties of PC/POSS Composites[J].Polymer Materials Science & Engineering,2011(12):114-118. |
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| Authors: | Hualun Cai Kai Xu Huan Liu Jiangxun Su Xin Liu Zien Fu Mingcai Chen |
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| Affiliation: | 1(1.Guangdong Provincial Key Laboratory of Organic Polymer Material for Electronics,Guangzhou Institute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China;2. Graduate School of the Chinese Academy of Sciences,Beijing 100039,China) |
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| Abstract: | Octaphenylsilsesquioxane(PH-POSS) and γ-methacryloxypropyl silsesquioxane(MA-POSS) were prepared and characterized respectively.And then the thermal properties of polycarbonate(PC)/polyhedral oligomeric silsesquioxane(POSS) composites were studied with differential scanning calorimetry and thermogravimetric analysis.The results show that: glass transition temperatures of composites decrease with PH-POSS content increasing;while no insignificant change with MA-POSS content increasing.The degradation temperatures(T5%) of composites under the nitrogen are slightly lower than that of pristine PC,but later composites degradation rates are slower than it and the largest mass loss temperatures(Tmax) of composites are higher than that of PC at a range of 1 ℃～15 ℃.In air,T5% and Tmax of composites are all higher than that of PC,and Tmax of PC/MA-POSS composites increases at a range of 22 ℃～50 ℃ with MA-POSS content increasing,furthermore,the chars of two composites are improved at a range of 5%～12%. |
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| Keywords: | polycarbonate composites polyhedral oligomeric silsesquioxane thermal stability |
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