改性纳米W-VO2纸基控温材料的制备及性能  

Preparation and properties of nano modified W-VO2 temperature-control paper materials

作　　者：张鑫 王凤[1,2] 党洪洋 龙柱[1,2] ZHANG Xin;WANG Feng;DANG Hongyang;LONG Zhu(Key Laboratory of Eco-textiles,Ministry of Education(Jiangnan University),Wuxi 214122,China;Laboratory of Papermaking,School of Textiles&Clothing,Jiangnan University,Wuxi 214122,China)

机构地区：[1]生态纺织教育部重点实验室(江南大学),江苏无锡214122 [2]江南大学纺织服装学院造纸研究室,江苏无锡214122

出　　处：《材料科学与工艺》2019年第6期27-33,共7页Materials Science and Technology

基　　金：国家自然科学基金资助项目(31270633);制浆造纸工程国家重点实验室开放基金资助项目(201512)

摘　　要：现阶段以磁控溅射法制备的掺杂钨二氧化钒控温薄膜,其热滞回线陡峭、机械加工性能以及强度性能较差,为解决上述问题,采用湿法非织造法制备了红外光学性能优异、相变温度较低的纳米掺杂钨二氧化钒(W-VO2)纸基控温材料.使用差示扫描量热法(DSC)、扫描电子显微镜(SEM)、傅里叶变换红外光谱仪(FT-IR)等分析方法,对纳米W-VO2纸基控温材料的微观结构及红外相变特性等方面进行了分析,并对纳米W-VO2纸基控温材料的红外透射率及相变特性进行表征.结果表明:表面改性处理后可促进纳米W-VO 2晶粒均匀分散,采用湿法非织造法制备的纳米W-VO2纸基控温材料,能够将相变温度控制在45℃附近,使红外透射率前后对比值达到37.5%,实现了对红外波段透射率差值的优化;当纳米W-VO 2控温材料加填量达到15 mL时,抗张指数、撕裂指数、耐破指数和耐折次数分别为7.62 kN/m、23.97 mN·m^2/g、5.37 kPa·m^2/g和92次(分度值14.7 N),为深入研究智能控温包装材料提供了参考依据.At present,the temperature-control films of W-VO2(M)prepared by magnetron sputtering method have a steep hysteresis loop with poor mechanical and strength properties.In order to solve the above problems,nano W-VO2(M)temperature-control paper materials that have excellent infrared optical property and low phase-change temperature were prepared by wet-nonwoven method.The experiment analyzed the microstructure and infrared phase-change characteristics of the nano W-VO2(M)temperature-control paper materials by using DSC,SEM,and FT-IR analytical methods,and characterized the infrared ray transmittance and phase-change property of nano W-VO2(M)temperature-control paper materials.Results show that the surface modification couled improve the dispersity of the nano W-VO2(M)grain,and the nano W-VO2(M)temperature-control paper materials could maintain the phase-change temperature at about 45℃.The ratio of infrared transmittance reached 37.5%,which improved the infrared transmittance interpolation.When the dosage of nano W-VO2(M)temperature-control materials was 15 ml,the value of tensile index,tear index,burst index,and folding times were 7.62 kN/m,23.97 mN·m^2/g,5.37 kPa·m^2/g,and 92 times(Resolation:14.7 N),which provided reference for further research on the field of intelligent temperature-control packing paper field.

关 键 词：纸基控温材料 纳米掺杂钨二氧化钒(M) 热致相变 单斜相M 相变温度 

分 类 号：TS767[轻工技术与工程—制浆造纸工程]