多壁碳纳米管/聚乙烯醇缩丁醛复合相变纤维的制备与性能

doi:10.16085/j.issn.1000-6613.2015.10.026

化工进展 ›› 2015, Vol. 34 ›› Issue (10): 3688-3692,3718.DOI: 10.16085/j.issn.1000-6613.2015.10.026

多壁碳纳米管/聚乙烯醇缩丁醛复合相变纤维的制备与性能

温国清, 谢锐, 巨晓洁, 汪伟, 刘壮, 褚良银

四川大学化学工程学院, 四川成都 610065

收稿日期:2015-04-17 修回日期:2015-06-14 出版日期:2015-10-05 发布日期:2015-10-05
作者简介:谢锐,教授,博士生导师,主要从事膜材料与膜技术、微流控技术等研究。E-mailxierui@scu.edu.cn。
基金资助:
国家自然科学基金重点项目(21136006)及高分子材料工程国家重点实验室自主研究课题——团队项目(sklpme2014-1-01)。

Preparation and properties of MWNT/polyvinyl butyral composite phase change fibers

WEN Guoqing, XIE Rui, JU Xiaojie, WANG Wei, LIU Zhuang, CHU Liangyin

School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China

Received:2015-04-17 Revised:2015-06-14 Online:2015-10-05 Published:2015-10-05

摘要/Abstract

摘要： 利用微流控技术成功制备了以石蜡(RT27)为芯层、共混多壁碳纳米管(MWNT)的聚乙烯醇缩丁醛(PVB)为鞘层的核-鞘型MWNT/PVB 复合相变纤维。系统研究了MWNT 的含量对复合相变纤维的形貌、力学性能、热性能、导热性能的影响。研究结果表明,MWNT 的加入显著提高了MWNT/PVB 复合相变纤维的力学性能和导热性能。随着MWNT 含量增加,MWNT/PVB 复合相变纤维的断裂强度先增大后减小。当MWNT 含量为0.5%时,复合相变纤维的断裂强度最大,比未添加MWNT 相变纤维的断裂强度提高了28.27%。在42℃高温下,比较缠绕MWNT 含量为4%的复合相变纤维和缠绕未添加MWNT 相变纤维的模型帽子的内部温度,前者从相同的初始温度17℃升温到达石蜡RT27 的相变温度(27℃)所用的时间比后者减少了25%。研究结果为制备具有良好导热性能、高强度和稳定、快速调温性能的相变纤维提供重要的实验参考和指导。

关键词: 微流体学, 相变, 焓, 纤维, 导热性能

Abstract: Core-sheath multi-walled carbon nanotube/polyvinyl butyral(MWNT/PVB) composite phase change fibers are successfully prepared by microfluidic technology, which are composed of paraffin (RT27) as core and PVB blended with MWNT as sheath. The effect of MWNT content on the morphology, mechanical properties, thermal properties, and conductive properties of MWNT/PVB composite phase change fibers is systematically investigated. The results show that the mechanical properties and heat conductive properties of MWNT/PVB fibers have improved significantly by adding the MWNT in PVB fiber matrix. The tensile strength of MWNT/PVB composite fibers firstly increases and then decreases with the increase of MWNT content. When MWNT content is 0.5%, the tensile strength of MWNT/PVB composite fibers reaches the maximum and increases by 28.27% than that of the phase change fibers without MWNT. At 42℃, the inner temperature of model hat twined by MWNT/PVB fibers with 4% of MWNT to PVB raises faster than that of the model hat with PVB phase change fibers. The duration time of the former reduces by 25% compared with the latter when the inner temperatures of two model hats reach the melting point of RT27 (27℃) from the same initial temperature (17℃). The results provide a valuable guidance for the preparation of phase change fibers with satisfactory heat conduction properties, mechanical properties as well as stable and fast thermal regulation properties.

Key words: microfluidics, phase change, enthalpy, fibers, conductive properties

中图分类号:

TQ342⁺.89

温国清, 谢锐, 巨晓洁, 汪伟, 刘壮, 褚良银. 多壁碳纳米管/聚乙烯醇缩丁醛复合相变纤维的制备与性能[J]. 化工进展, 2015, 34(10): 3688-3692,3718.

WEN Guoqing, XIE Rui, JU Xiaojie, WANG Wei, LIU Zhuang, CHU Liangyin. Preparation and properties of MWNT/polyvinyl butyral composite phase change fibers[J]. Chemical Industry and Engineering Progree, 2015, 34(10): 3688-3692,3718.

参考文献

[1] Chen C,Wang L,Huang Y. Electrospun phase change fibers based on polyethylene glycol/cellulose acetate blends[J]. Applied Energy,2011,88(9):3133-3139.

[2] Farid M M,Khudhair A M,Razack S A K,et al. A review on phase change energy storage:Materials and applications[J]. Energy Conversion and Management,2004,45(9-10):1597-1615.

[3] Zalba B,Mar?n J M,Cabeza L F,et al. Review on thermal energy storage with phase change:Materials,heat transfer analysis and applications[J]. Applied Thermal Engineering,2003,23:251-283.

[4] Li M. A nano-graphite/paraffin phase change material with high thermal conductivity[J]. Applied Energy,2013,106:25-30.

[5] Fan L W,Fang X,Wang X,et al. Effects of various carbon nanofillers on the thermal conductivity and energy storage properties of paraffin-based nanocomposite phase change materials[J]. Applied Energy,2013,110:163-172.

[6] Wang J,Xie H,Xin Z,et al. Enhancing thermal conductivity of palmitic acid based phase change materials with carbon nanotubes as fillers[J]. Solar Energy,2010,84(2):339-344.

[7] Wang Y,Tang B,Zhang S. Single-walled carbon nanotube/phase change material composites:Sunlight-driven,reversible,form-stable phase transitions for solar thermal energy storage[J]. Advanced Functional Materials,2013,23(35):4354-4360.

[8] 谢望平,汪南,朱冬生,等. 相变材料强化传热研究进展[J]. 化工进展,2008,27(2):190-193.

[9] Wang W,Yang X,Fang Y,et al. Enhanced thermal conductivity and thermal performance of form-stable composite phase change materials by using β-aluminum nitride[J]. Applied Energy,2009,86(7-8):1196-1200.

[10] 王维龙,杨晓西,方玉堂,等.聚乙二醇/二氧化硅定形相变材料的制备[J]. 化工学报,2007,58(10):2664-2668.

[11] Bin Y,Mine M,Koganemaru A,et al. Morphology and mechanical and electrical properties of oriented PVA-VGCF and PVA-MWNT composites[J]. Polymer,2006,47(4):1308-1317.

[12] Li Y,Yu T,Pui T,et al. Fabrication and characterization of recyclable carbon nanotube/polyvinyl butyral composite fiber[J]. Composites Science and Technology,2011,71(14):1665-1670.

[13] Imaizumi S,Matsumoto H,Konosu Y,et al. Top-down process based on electrospinning,twisting,and heating for producing one-dimensional carbon nanotube assembly[J]. ACS Applied Materials & Interfaces,2011,3(2):469-475.

[14] Cai Y,Xu X,Gao C,et al. Effects of carbon nanotubes on morphological structure,thermal and flammability properties of electrospun composite fibers consisting of lauric acid and polyamide 6 as thermal energy storage materials[J]. Fibers and Polymers,2012,13(7):837-845.

[15] He X H,Wang W,Deng K,et al. Microfluidic fabrication of chitosan microfibers with controllable internals from tubular to peapod-like structures[J]. RSC Advances,2015,5(2):928-936.

[16] Cai Y,Ke H,Dong J,et al. Effects of nano-SiO₂ on morphology,thermal energy storage,thermal stability,and combustion properties of electrospun lauric acid/PET ultrafine composite fibers as form-stable phase change materials[J]. Applied Energy,2011,88(6):2106-2112.

多壁碳纳米管/聚乙烯醇缩丁醛复合相变纤维的制备与性能

Preparation and properties of MWNT/polyvinyl butyral composite phase change fibers

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	王家庆, 宋广伟, 李强, 郭帅成, DAI Qingli. 橡胶混凝土界面改性方法及性能提升路径[J]. 化工进展, 2023, 42(S1): 328-343.
[2]	时雨, 赵运超, 樊智轩, 蒋达华. 夏热冬冷地区相变屋面最佳相变温度的实验研究[J]. 化工进展, 2023, 42(9): 4828-4836.
[3]	卜治丞, 焦波, 林海花, 孙洪源. 脉动热管计算流体力学模型与研究进展[J]. 化工进展, 2023, 42(8): 4167-4181.
[4]	张超, 杨鹏, 刘广林, 赵伟, 杨绪飞, 张伟, 宇波. 表面微结构对阵列微射流沸腾换热的影响[J]. 化工进展, 2023, 42(8): 4193-4203.
[5]	汤磊, 曾德森, 凌子夜, 张正国, 方晓明. 相变蓄冷材料及系统应用研究进展[J]. 化工进展, 2023, 42(8): 4322-4339.
[6]	陶梦琦, 刘美红, 康宇驰. 基于micro-PIV的微通道内流体绕流单微圆柱和并联双微圆柱流场特性[J]. 化工进展, 2023, 42(6): 2836-2844.
[7]	吴和平, 曹宁, 徐圆圆, 曹云波, 李裕东, 杨强, 卢浩. 氢氟酸与烷基化油快速分离[J]. 化工进展, 2023, 42(6): 2845-2853.
[8]	董晓珊, 王建, 林法伟, 颜蓓蓓, 陈冠益. 基于钙钛矿氧化物的金属纳米粒子溶出策略：溶出过程、驱动力及控制策略[J]. 化工进展, 2023, 42(6): 3049-3065.
[9]	王久衡, 荣鼐, 刘开伟, 韩龙, 水滔滔, 吴岩, 穆正勇, 廖徐情, 孟文佳. 水蒸气强化纤维素模板改性钙基吸附剂固碳性能及强度[J]. 化工进展, 2023, 42(6): 3217-3225.
[10]	张乐乐, 钱运东, 朱华曈, 冯思龙, 杨秀娜, 于颖, 杨强, 卢浩. 加氢原料煤焦油脱水除盐预处理工艺优化限值[J]. 化工进展, 2023, 42(5): 2298-2305.
[11]	刘厚励, 顾中浩, 阳康, 张莉. 3D打印槽道结构槽宽对池沸腾传热特性的影响[J]. 化工进展, 2023, 42(5): 2282-2288.
[12]	张晨宇, 王宁, 徐洪涛, 罗祝清. 纳米颗粒强化传热的多级潜热储热器性能评价[J]. 化工进展, 2023, 42(5): 2332-2342.
[13]	陈明星, 王新亚, 张威, 肖长发. 纤维基耐高温空气过滤材料研究进展[J]. 化工进展, 2023, 42(5): 2439-2453.
[14]	徐玉珍, 蒋达华, 刘景滔, 陈璞. 粉煤灰基相变储能材料的制备及性能[J]. 化工进展, 2023, 42(5): 2595-2605.
[15]	庞楠炯, 王晓玲, 廖学品, 石碧. 胶原纤维固化黑荆树单宁对硼同位素的分离[J]. 化工进展, 2023, 42(5): 2616-2625.