| PVA/SiO2杂化纤维的制备与表征 |
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| 引用本文： | 宋秋生,史铁钧,王华林,杭国培.PVA/SiO2杂化纤维的制备与表征[J].高分子材料科学与工程,2007,23(6):216-219. |
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| 作者姓名： | 宋秋生 史铁钧 王华林 杭国培 |
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| 作者单位： | 合肥工业大学化工学院,安徽合肥,230009 |
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| 摘 要： | 采用溶胶凝胶法制备了不同SiO2含量的PVA/SiO2杂化溶胶,通过拉丝得到杂化纤维。对溶胶的可纺性和杂化纤维的性能进行了研究。结果表明,SiO2溶胶与PVA/SiO2杂化溶胶在反应过程中的黏度变化规律相似,黏度均存在三个变化区间,随PVA含量的增加,杂化溶胶的可纺性能改善。FT-IR表明,杂化纤维中PVA与SiO2之间形成了化学键结合;XRD、DSC和光学显微分析表明,杂化使PVA结晶能力明显降低;热失重和耐溶剂研究表明,PVA与SiO2之间的化学键结合使杂化纤维具有良好的耐热性能。
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| 关 键 词： | 有机-无机杂化 聚乙烯醇 二氧化硅 杂化纤维 溶胶凝胶法 |
| 文章编号： | 1000-7555（2007）06-0216-04 |
| 修稿时间： | 2006-07-24 |
Preparation and Characterization of Continuous Fibres of PVA/SiO2 Hybrid by Sol-Gel Method |
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| SONG Qiu-sheng,SHI Tie-jan,WANG Hua-lin,HANG Guo-pei.Preparation and Characterization of Continuous Fibres of PVA/SiO2 Hybrid by Sol-Gel Method[J].Polymer Materials Science & Engineering,2007,23(6):216-219. |
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| Authors: | SONG Qiu-sheng SHI Tie-jan WANG Hua-lin HANG Guo-pei |
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| Affiliation: | School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China |
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| Abstract: | Continuous PVA/SiO2 hybrid fibers were prepared by Sol-Gel method.The spinnablity of the sols prepared and the performance of the PVA/SiO2 hybrid fibers were researched.The results show that,in the reaction,the change rules in viscosity of sols of SiO2 and PVA/SiO2 were similar,that is,three change rate stages of viscosity are happened in all these sols;with the increases of PVA content,the gelling-time and spinning-time of PVA/SiO2 hybrid sols increases.The hybrid fibers were characterized by FT-IR,XRD,DSC,TG and optical microscope.The results indicate that their interior-structure are homogeneous and amorphous,chemical bonds are linked PVA with SiO2 networks,and they have good resistance to heat. |
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| Keywords: | organic-inorganic hybrids PVA SiO2 hybrid fibers sol-gel method |
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