| OTS自组装改性PTW增强PTFE复合材料的非等温结晶动力学 |
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| 引用本文： | 史以俊,何明,顾晓利,罗振扬,冯新,陆小华. OTS自组装改性PTW增强PTFE复合材料的非等温结晶动力学[J]. 高分子材料科学与工程, 2009, 0(12) |
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| 作者姓名： | 史以俊 何明 顾晓利 罗振扬 冯新 陆小华 |
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| 作者单位： | 南京林业大学理学院化学材料系;南京工业大学材料化学工程国家重点实验室; |
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| 摘 要： | 采用冷压烧结的方法制备了纯聚四氟乙烯(PTFE)、未处理钛酸钾晶须(PTW)及十八烷基三氯硅烷(OTS)自组装改性PTW填充的PTFE复合材料。研究了PTFE及改性前后PTW的静态接触角,用差示扫描量热(DSC)法并结合Jeziorny方程研究了PTFE及其填充改性前后PTW复合材料的非等温结晶动力学。结果表明,Jeziorny方程能够较好地描述复合材料的非等温结晶动力学,PTW在PTFE基体中起异相成核作用,加快了PTFE的结晶速率。OTS能够明显提高PTW的憎水性能,这使PTW的异相成核能力得到增强。
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| 关 键 词： | 十八烷基三氯硅烷 钛酸钾晶须 聚四氟乙烯 非等温结晶动力学 |
Non-Isothermal Crystallization Kinetics of OTS Treated Potassium Titanate Whiskers Filled PTFE Composites |
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| SHI Yi-jun,HE Ming,GU Xiao-li,LUO Zhen-yang,FENG Xin,LU Xiao-hua. Non-Isothermal Crystallization Kinetics of OTS Treated Potassium Titanate Whiskers Filled PTFE Composites[J]. Polymer Materials Science & Engineering, 2009, 0(12) |
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| Authors: | SHI Yi-jun HE Ming GU Xiao-li LUO Zhen-yang FENG Xin LU Xiao-hua |
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| Affiliation: | SHI Yi-jun1,HE Ming1,GU Xiao-li1,LUO Zhen-yang1,FENG Xin2,LU Xiao-hua2 (1.Department of Chemistry and Materials Science,Institute of Science,Nanjing Forestry University,Nanjing 210037,China,2.State Key Laboratory of Materials-Oriented Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | Polytetrafluoroethylene(PTFE),untreated potassium titanate whiskers(PTW) and n-octadecyltrichlorosilane(OTS) treated PTW filled PTFE composites were prepared in this paper.The water contact angle of pure PTFE,untreated PTW and OTS treated PTW were studied.Meanwhile,the non-isothermal crystallization kinetics of pure PTFE,untreated PTW and OTS treated PTW filled PTFE composites were also investigated by using differential scanning calorimetry(DSC) method and Jeziorny function.The results indicate that the no... |
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| Keywords: | n-octadecyltrichlorosilane PTW PTFE non-isothermal crystallization kinetics |
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