| 热处理对聚偏氟乙烯-酰胺类溶剂所制薄膜结晶行为的影响 |
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| 引用本文： | 宋锐,杨德彬,谢巧丽,何领好,刘宝菲.热处理对聚偏氟乙烯-酰胺类溶剂所制薄膜结晶行为的影响[J].高分子学报,2007,0(2):144-147. |
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| 作者姓名： | 宋锐 杨德彬 谢巧丽 何领好 刘宝菲 |
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| 作者单位： | 1. 郑州轻工业学院化工与材料学院,郑州,450002;中国科学院研究生院化学化工学院,北京,100049
2. 郑州轻工业学院化工与材料学院,郑州,450002 |
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| 基金项目： | 河南省高校杰出科研创新人才工程项目 |
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| 摘 要： | 使用红外光谱和偏光显微镜对PVDF(聚偏氟乙烯)-DMF(N,N-二甲基甲酰胺)和PVDF-DMAc(N,N-二甲基乙酰胺)体系结晶行为的研究表明,PVDF薄膜的结晶受制备溶剂,后期热处理温度和膜厚度等因素的影响;升高温度,β相含量减小;当温度低于90℃时,PVDF-DMF体系的F(β)值较DMAc体系大,在90~160℃之间则相反,且两种体系的F(β)值分别在约90℃和80℃发生“突变”;同时,结晶还明显受到薄膜厚度的影响,厚度大,结晶较完善.
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| 关 键 词： | 聚偏氟乙烯 结晶 薄膜厚度 红外光谱 |
| 收稿时间： | 2005-12-27 |
| 修稿时间： | 2006-03-28 |
THE EFFECT OF ANNEALING TEMPERATURE ON CRYSTALLIZATION OF POLY(VINYLIDENE FLUORIDE) FILMS PREPARED FROM POLY(VINYLIDENE FLUORIDE)/AMIDE SOLUTION |
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| SONG Rui,YANG Debin,XIE Qiaoli,HE Linghao,LIU Baofei.THE EFFECT OF ANNEALING TEMPERATURE ON CRYSTALLIZATION OF POLY(VINYLIDENE FLUORIDE) FILMS PREPARED FROM POLY(VINYLIDENE FLUORIDE)/AMIDE SOLUTION[J].Acta Polymerica Sinica,2007,0(2):144-147. |
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| Authors: | SONG Rui YANG Debin XIE Qiaoli HE Linghao LIU Baofei |
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| Institution: | 1.College of Chemical Engineering &; Material, Zhengzhou University of Light Industry,Zhengzhou 450002,2.College of Chemistry and Chemial Engineering, Graduate Univeristy of Chinese Academy of Sciences, Beijing 100049 |
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| Abstract: | The crystallization of poly(vinylidene fluoride)(PVDF)films prepared from dimethylformamide(DMF)and dimethylacetamide(DMAc)solution and subsequently annealed at various temperature was studied by FT-IR and optical microscope.The results indicate that the crystallization of PVDF film depends on solvent,annealing temperature and film thickness.For all samples the content of β phase,F(β),decreases with elevating annealing temperature.When the annealing temperature is less than 90℃,the F(β)of PVDF-DMF system is higher than that of PVDF-DMAc system;however,at 90～160℃,a reversed observation is obtained.For the two systems,interestingly,the F(β)decreases drastically at the region of ca 90℃ and 80℃,respectively.In addition,the crystallization of PVDF is also affected by film thickness,higher film thickness will make the spherulite more resolved. |
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| Keywords: | Polyvinylidene fluoride Crystallization Film thickness FT-IR spectrum |
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