细粒径SiO2基棕榈醇-棕榈酸-月桂酸微胶囊相变调湿材料的制备与性能*

张浩, 黄新杰, 宗志芳, 刘秀玉

Preparation and Properties of SiO2 Based Hexadecanol-Palmitic Acid-Lauric Acid Microencapsulated Phase Change and Humidity Controlling Materials with Fine Particle Size

ZHANG Hao, HUANG Xinjie, ZONG Zhifang, LIU Xiuyu

表2 SiO2基棕榈醇-棕榈酸-月桂酸微胶囊相变调湿材料的热性能

Table 2 Thermal properties of SiO2 based hexadecanol-palmitic acid-lauric acid microencapsulated phase change and humidity controlling materials

Sample Phase change temperature (℃) Phase transition enthalpy (J/g) hexadecanol-palmitic acid-lauric acid content (%) Pure hexadecanol-palmitic acid-lauric acid 22.79~28.18 173.36~178.72 100 2 21.89~27.75 92.03~97.96 53.1~54.8 6 21.54~27.24 86.78~90.45 50.1~50.6 9 22.13~27.58 30.62~32.28 17.7~18.1 10 22.27~28.06 141.46~150.33 81.6~84.1