Page 22 - 201906

第 36 卷第 6 期 精 细 化 工 Vol.36, No.6
201 9 年 6 月 FINE CHEMICALS June 2019

功能材料
纳米胶囊化二元复合相变材料的制备及热性能

1
1
3
赵姣姣 1,2 ，周建华 1,2* ，崔艳娇 ，刘 娟 ，程文静
（1. 陕西科技大学 轻工科学与工程学院，陕西 西安 710021；2. 轻化工程国家级实验教学示范中心，
陕西 西安 710021；3. 清远市宏图助剂有限公司，广东 清远 511500）

摘要：以正十八烷（C18）和硬脂酸丁酯（BS）为复合芯材（PCMs），聚甲基丙烯酸甲酯（PMMA）为壁材，
通过无皂乳液聚合法制备纳米胶囊化相变材料，探讨了乳化剂种类和用量、引发剂种类和用量、芯壁比对纳米
胶囊的影响，并采用 TEM、SEM、FTIR、XRD、DSC 和 TGA 对纳米胶囊的形貌、化学结构和热性能进行了测
试表征。结果表明：当烷基乙烯基磺酸盐（AVS）用量占油相总质量的 3.0%，过硫酸铵（APS）用量占单体 MMA
质量的 1.2%，芯材与壁材质量比（芯壁比）为 2∶4 时，制备的纳米胶囊单体转化率最高、粒径最小、球形形
貌最规整。相变纳米胶囊的熔融焓和结晶焓分别为 56.89 和 54.02 J/g，具有良好的储热能力和耐热性能，且整理
于棉织物上有较好的调温效果。
关键词：相变材料；纳米胶囊；PMMA；潜热储存；调温织物；功能材料
中图分类号：O632.52; TS195.2 文献标识码：A 文章编号：1003-5214 (2019) 06-1028-08

Preparation and Thermal Properties of Nanoencapsulated Binary
Phase Change Materials

3
1
1,2
1
ZHAO Jiao-jiao , ZHOU Jian-hua 1,2* , CUI Yan-jiao , LIU Juan , CHENG Wen-jing
（1. College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021,
Shaanxi, China; 2. National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi
University of Science & Technology, Xi'an 710021, Shaanxi, China; 3. HT Fine Chemical Co., Ltd., Qingyuan 511500,
Guangdong, China）
Abstract: Nanoencapsulated phase change materials were prepared through surfactant-free emulsion
polymerization with n-octadecane (C18) and n-butyl stearate (BS) as binary cores and poly(methyl
methacrylate) (PMMA) as shell. The effects of emulsifier type and dosage, initiator type and dosage and
core/shell mass ratio on the nanocapsules were studied. The surface morphology, chemical structure and
thermal properties of phase change nanocapsules were characterized by TEM, SEM, FTIR, XRD, DSC and
TGA. The results indicate that the best preparation conditions of nanocapsules are alkyl vinyl sulfonate
(AVS) dosage 3.0% of the total oil phase mass, ammonium persulfate (APS) dosage 1.2% of the mass of
MMA and core/shell mass ratio 2∶4. Under these conditions, the monomer conversion of nanocapsules is
the highest, particle size is the smallest and spherical morphology is the most regular. In addition, phase
change nanocapsules have good latent heat storage capacity and heat resistance, and their melting enthalpy
and crystallization enthalpy are 56.89 J/g and 54.02 J/g, respectively. The finished cotton fabrics with phase
change nanocapsules have better thermoregulation effect.
Key words: phase change material; nanocapsules; PMMA; latent heat storage; thermoregulation textile;
functional materials
Foundation items: Industrialization Cultivation Item of Educational Department of Shaanxi Provincial
Government (16JF006); Natural Science Basic Research Plan in Shaanxi Province (2017JZ003); Qingyuan
Municipal Science and Technology Plan Project (2018D008)

收稿日期：2018-11-22; 定用日期：2019-02-21; DOI: 10.13550/j.jxhg.20180867
基金项目：陕西省教育厅服务地方专项计划项目（16JF006）；陕西省自然科学基础研究计划项目（2017JZ003）；清远市科技计划项目
（2018D008）
作者简介：赵姣姣（1994—），女，硕士生。联系人：周建华（1973—），女，教授，E-mail：zhoujianh@21cn.com。