摘要
利用异氰酸苯酯(MDI)对空心玻璃微珠(HGMS)表面进行修饰,通过溶液共混法制得HGMS-NCO材料,并将其作为硬质聚氨酯泡沫(RPUF)的增强填料制备HGMS-NCO/RPUF复合泡沫。利用红外光谱(FT-IR)和扫描电子显微镜(SEM)对所合成的HGMS-NCO材料进行表征。HGMS-NCO/RPUF复合泡沫的压缩试验结果表明,与纯RPUF相比,HGMS-NCO/RPUF(25%)的表观密度、压缩强度分别提高了35.18%和48.62%。此外,HGMS-NCO的加入提高了RPUF泡沫的热稳定性。HGMS-NCO/RPUF的吸水率和导热系数随填料质量的增加呈现先减小后增大的趋势,添加25%泡沫的吸水率为3.4%,导热系数为0.023 82 W/(m·K)。
HGMS-NCO is obtained through modifying hollow glass microspheres(HGMS) surface by phenyl isocyanate(MDI) and solution blending method, and used as an enhanced filler for hard polyurethane foam(RPUF) to prepare HGMS-NCO/RPUF composite foam.HGMS-NCO is characterized by means of infrared spectroscopy(FT-IR) and scanning electron microscopy(SEM).The results from the compression test of HGMS-NCO/RPUF composite foam show that the apparent density and compression intensity of HGMS-NCO/RPUF(25 wt%) are 35.18% and 48.62% respectively higher than that of pure RPUF.Furthermore, the addition of HGMS-NCO improves the thermal stability of RPUF foam.The water absorption rate and thermal conductivity of HGMS-NCO/RPUF foam decrease firstly and increase then with the increasing mass content of fillings.HGMS-NCO/RPUF foam with an fillings addition of 25 wt% can absorb 3.4% of water, and has a thermal conductivity of 0.023 82 W·m·K.
作者
刘冬
邹龙庆
张宏斌
兰天宇
LIU Dong;ZOU Long-qing;ZHANG Hong-bin;LAN Tian-yu(School of Mechanical Science and Engineering,Northeast Petroleum University,Daqing 163318,China;School of Mechanical and Electronic Engineering,Qiqihar University,Qiqihar 161006,China;Heilongjiang Provincial Collaborative Innovation Center for Intelligent Manufacturing Equipment Industrialization,Qiqihar 161006,China;School of Materials Science and Engineering,Qiqihar University,Qiqihar 161006,China)
出处
《现代化工》
CAS
CSCD
北大核心
2022年第9期160-164,169,共6页
Modern Chemical Industry
基金
黑龙江省省属高等学校基本科研业务费科研项目(145109125)。
关键词
异氰酸酯
空心玻璃微珠
硬质聚氨酯泡沫
压缩强度
isocyanate
hollow glass microspheres
rigid polyurethane foam
compressive strength
