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过程工程学报 ›› 2017, Vol. 17 ›› Issue (3): 584-587.DOI: 10.12034/j.issn.1009-606X.216343

• 过程与工艺 • 上一篇    下一篇

纳米级癸酸-棕榈酸/SiO2相变储湿复合材料的团聚原因及分散方法

张 浩1,2*，  宗志芳1，  刘秀玉1，  唐 刚1   

  1. 1. 安徽工业大学建筑工程学院，安徽 马鞍山 243032；
    2. 安徽工业大学冶金减排与资源综合利用教育部重点实验室，安徽 马鞍山 243002
  • 收稿日期:2016-11-01 修回日期:2016-11-24 出版日期:2017-06-20 发布日期:2017-06-14
  • 通讯作者: 张浩 fengxu19821018@163.com
  • 基金资助:
    高等学校优秀青年人才基金项目

Reunion Reason and Dispersion Method of Nano Decanoic Acid-Palmitic Acid/SiO2 Phase Change and Humidity Storage Composite Materials

Hao ZHANG1,2*,  Zhifang ZONG1,  Xiuyu LIU1,  Gang TANG1   

  1. 1. School of Civil Engineering and Architecture, Anhui University of Technology, Ma?anshan, Anhui 243032, China;
    2. Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education,
    Anhui University of Technology, Ma?anshan, Anhui 243002, China
  • Received:2016-11-01 Revised:2016-11-24 Online:2017-06-20 Published:2017-06-14
  • Contact: ZHANG Hao fengxu19821018@163.com

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摘要：

以SiO2为载体、癸酸-棕榈酸为相变材料，采用溶胶-凝胶法制备纳米级癸酸-棕榈酸/SiO2相变储湿复合材料，以复合材料粒度d50, d90, d10和d90-d10为评价指标，用激光粒度分析仪研究了溶质浓度、超声波功率、超声波分散时间及分散剂浓度对复合材料粒度分布的影响. 结果表明，激光粒度分析仪(测试范围1~10000 nm)可用于检测纳米级癸酸-棕榈酸/SiO2相变储湿复合材料的粒度分布，且具有高度重复性，最佳分散条件为溶质(复合材料)浓度4 g/L，超声波功率300 W，超声波分散时间30 min，分散剂六偏磷酸钠浓度3 g/L.

关键词: 激光粒度仪, 纳米级癸酸-棕榈酸/SiO2相变储湿复合材料, 团聚, 粒度分布, 分散

Abstract:

With SiO2 as the carrier and decanoic acid-palmitic acid as a phase change material, nano decanoic acid-palmitic acid/SiO2 phase change and humidity storage composite materials were prepared by the sol-gel process. The effects of solute concentration, ultrasonic dispersing power, ultrasonic dispersing time and dispersant concentration on the particle size distribution of composite materials were investigated using the particle size d50, d90, d10 and d90-d10 as evaluation indicator. The results indicated that the laser particle size analyzer (test range 1~10000 nm) is applicable to the particle size measurement of nano decanoic acid-palmitic acid/SiO2 phase change and humidity storage composite materials showing high reproducibility. Optimum dispersion conditions are solute (composite material) concentration 4 g/L, ultrasonic dispersing power 300 W, ultrasonic dispersing time 30 min, dispersant sodium hexametaphosphate concentration 3 g/L.

Key words: laser particle size analysis, nano decanoic acid-palmitic acid/SiO2 phase change and humidity storage composite materials, reunion, particle size distribution, dispersion