李昭,叶光斗,徐建军,刘鹏清,姜猛进
LI Zhao,YE Guang-dou,XU Jian-jun,LIU Peng-qing,JIANG Meng-jin

• 1:四川大学高分子科学与工程学院高分子材料与工程国家重点实验室

摘要(Abstract)：

以聚乙二醇(PEG)为相变物质,聚乙烯醇(PVA)为纤维基体,加入少量丁烷四羧酸(BTCA)作为交联剂,采用干法纺丝制备相变储能纤维,利用原位交联法在纤维拉伸热定形过程中使BTCA与PVA、PEG发生交联,将PEG接枝在PVA上。研究了BTCA、PEG合适的添加量以及最佳热定形温度对PEG保留率的影响,并通过差示扫描量热法、扫描电镜对纤维的热性能和形貌进行了分析。结果表明:当PEG添加量为30%(占PVA质量的百分数)、BTCA添加量为5%(占PVA质量的百分数)时,纤维充分交联,200℃下热处理10 min所得纤维PEG的保留率>98%;制得的纤维的相变热焓可达34 J/g,拉伸强度可达3.26 cN/dtex;在升降温循环400次后仍具有良好的储能性。
Thermal regulating fibers were prepared by dry spinning,which were made from polyethylene gly-col(PEG) phase change material,polyvinyl alcohol(PVA)(fiber matrix) and small amounts of cross-linkingagent butane tetracarboxylic acid(BTCA).An in situ cross-linking method was employed to make the BTCAreacting with the PEG and PVA during the thermal treatment which led to the cross-linking between PVAand PEG.The amounts of BTCA and PEG were optimized and the influence of thermal treatment conditionson reservation ratio was investigated.The performance and morphology of the fibers were analyzed by DSCand SEM,respectively.Results showed that when the PEG was 30%(to the mass of PVA)and BTCA was 5%(to the mass of PVA),after the thermal treatment of 200 ℃ and 10 min,the obtained fiber had a high PEGgrafting ratio of>98%.The latent heat of the fiber was 34 J/g,the fiber's tensile strength was 3.26 c N/dtex,and the fibers still had good energy storage performance after 400 times of heating-cooling cycles.

关键词(KeyWords)： 原位交联;相变储能纤维;聚乙烯醇;聚乙二醇
in situ cross-linked,thermal regulating fiber,polyethylene glycol,polyvinly alcohol

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(No.51103088)支持

作者(Author): 李昭,叶光斗,徐建军,刘鹏清,姜猛进
LI Zhao,YE Guang-dou,XU Jian-jun,LIU Peng-qing,JIANG Meng-jin

DOI: 10.16090/j.cnki.hcxw.2015.07.006

参考文献(References)：

• [1]陈爱英,江学英,曹学增.相变储能材料的研究进展与应用[J].材料导报,2003,17(5):42-44.
• [2]刘超,剧霏,侯海燕,等.贮能相变材料的研究及发展趋势[J].材料导报,2006,19(F11):261-264.
• [3]宋晓庆,姜猛进,叶光斗,等.石蜡/聚乙烯醇相变储能纤维的制备与表征[J].复合材料学报,2008,25(1):17-22.
• [4]姜勇,丁恩勇,黎国康.聚乙二醇/二醋酸纤维素相变材料的组成与储能性能间的关系[J].高分子学报,2000,1(6):681-687.
• [5]姜猛进,徐建军,叶光斗,等.常温储能控温纤维及纺织品的研究与发展[J].纺织学报,2007,28(3):124-128.
• [6]胡广东,邹黎明,徐速,等.复合相变材料/聚甲基丙烯甲酯微胶囊的制备及表征[J].合成纤维,2011,40(9):20-23.
• [7]段玉情,西鹏,刘然,等.一种纤维用新型聚乙二醇固-固相变储能材料[J].合成纤维,2011,40(9):13-18.
• [8]R K Kaul.Thermal insulating coating for spacecrafts:US 6939610[P].2005.
• [9]J L Zuckerman,R J Pushaw,B T Perry,et al.Fabric coating composition containing energy absorbing phase change material and method of manufacturing same:US 6514362[P].2003.
• [10]T L Vigo,C M Frost,Temperature adaptable hollow fibers containing polyethylene glycols[J].Journal of Industrial Textiles,1983(12):243-254.
• [11]李佳佳,许维星,罗森,等.BTCA改性PEG/PVA相变储能纤维的结构与性能[J].合成纤维工业,2013,36(3):31-34.
• [12]张梅,那莹,姜振华.接枝共聚法制备聚乙二醇(PEG)/聚乙烯醇(PVA)高分子固-固相变材料性能研究[J].高等学校化学学报,2005,26(1):170-174.