潜热输送相变乳状液的制备与性能

doi:10.3969/j.issn.2095-4239.2014.02.006

储能科学与技术 ›› 2014, Vol. 3 ›› Issue (2): 128-132.doi: 10.3969/j.issn.2095-4239.2014.02.006

潜热输送相变乳状液的制备与性能

毛凌波^1,2, 梁志彬², 林敬堂², 李福涛², 孔祥湛², 贾德民¹

1华南理工大学材料科学与工程学院,广东广州 510640;
2广东工业大学材料与能源学院,广东广州 510006

收稿日期:2013-09-02 出版日期:2014-03-01 发布日期:2014-03-01
作者简介:第一作者及通讯联系人:毛凌波(1980--),男,博士,讲师,研究方向为相变材料与技术,E-mail:bobvic@126.com.
基金资助:
中国博士后科学基金(2011M501095); 2013年大学生创新创业训练计划(1184513239)项目

Phase change emulsions for latent heat transportation:Preparation and characterization

MAO Lingbo^1,2, LIANG Zhibin², LIN Jingtang², LI Futao², KONG Xiangzhan², JIA Demin¹

1College of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China;
2Faculty of Material & Energy,Guangdong University of Technology,Guangzhou 510006,Guangdong,China

Received:2013-09-02 Online:2014-03-01 Published:2014-03-01

摘要/Abstract

摘要： 采用相转化乳化法,以Tween80+Span80为复配乳化剂,通过优化复配乳化剂的比例以及优选不同的助乳化剂(稳定剂),制备了固含量高达40%的石蜡相变乳状液.分别采用NDJ-1黏度仪和DSC-Q10热流式差示扫描量热仪测试了石蜡相变乳状液的黏度和潜热.结果表明:当复配乳化剂的HLB值在10附近时,即Span80占46.8%(质量分数),Tween80占53.2%(质量分数),以正丁醇为助乳化剂,可制得分散均匀稳定,流动性好的石蜡相变乳状液,该相变乳状液的黏度随石蜡含量的增加而急剧增大,而潜热则在油相/水相共存时达到最大.当乳状液为油相时,潜热随含水量的增加而增大;当乳状液为水相时,潜热随含水量的增加而减小.

关键词: 石蜡乳状液, 相变, 黏度, 潜热

Abstract: Paraffin-water emulsions were prepared by using a phase transformation emulsification method. Span80 and Tween80 were used as the emulsifiers. Paraffin content up to 40% could be obtained by using such a method. The emulsions were characterized for their viscosity and latent heat by using the NDJ-1 viscometer and the Q10 differential scanning calorimeter (DSC), respectively. The results showed that uniform and stable paraffin wax emulsions could be obtained when the HLB of emulsifiers was about 10 (i.e. the weight ratio of Span80 to Tween80 was round 46.8∶53.2). The viscosity of the emulsions increased sharply with increasing wax content, whereas the latent heat was at maximum when the oil and water phases coexisted. When the emulsion contains the oil phase only, the latent heat increased with increasing water content, while the latent heat of the emulsions decreased with increasing water content when the emulsion contains the water phase.

Key words: paraffin wax emulsion, phase change, viscosity, latent heat

中图分类号:

TM02

毛凌波, 梁志彬, 林敬堂, 李福涛, 孔祥湛, 贾德民. 潜热输送相变乳状液的制备与性能[J]. 储能科学与技术, 2014, 3(2): 128-132.

MAO Lingbo, LIANG Zhibin, LIN Jingtang, LI Futao, KONG Xiangzhan, JIA Demin. Phase change emulsions for latent heat transportation:Preparation and characterization[J]. Energy Storage Science and Technology, 2014, 3(2): 128-132.

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潜热输送相变乳状液的制备与性能

Phase change emulsions for latent heat transportation:Preparation and characterization

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