Ma Yizhe, Du Ying, Zhao Jin, Yuan Xubo, Hou Xin
School of Material Science and Engineering, Tianjin University, Tianjin 300350, China.
Polymers (Basel). 2020 Jul 1;12(7):1480. doi: 10.3390/polym12071480.
In this study, a new class of thermal insulation composites was prepared by blending a modified hollow glass microsphere (HGM) with furan resin. The particle dispersion between the microparticles and resin matrix was improved using 3-methacryloxypropyltrimethoxy silane (KH-570). Furthermore, the structure and morphology of the modified HGM were characterised by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). In addition, the effects of the modified HGM on the thermal insulation, flame retardancy, and thermal properties of the composites were investigated. The thermal conductivity of the composites was lower than that of the native furan resin. The minimum thermal conductivity of the composites was 0.0274 W/m·K; the flame retardancy of the composites improved, and the limiting oxygen index become a maximum of 31.6%, reaching the refractory material level. Furthermore, the thermal analysis of the composites demonstrated enhanced thermal stability. This study demonstrates that the composite material exhibited good thermal insulation performance and flame retardancy and that it can be applied in the field of thermal insulation.
在本研究中，通过将改性空心玻璃微球（HGM）与呋喃树脂共混制备了一类新型的隔热复合材料。使用3-甲基丙烯酰氧基丙基三甲氧基硅烷（KH-570）改善了微粒与树脂基体之间的颗粒分散性。此外，通过傅里叶变换红外光谱（FTIR）、X射线光电子能谱（XPS）和扫描电子显微镜（SEM）对改性HGM的结构和形态进行了表征。另外，研究了改性HGM对复合材料的隔热、阻燃和热性能的影响。复合材料的热导率低于天然呋喃树脂。复合材料的最低热导率为0.0274W/m·K；复合材料的阻燃性提高，极限氧指数最高达到31.6%，达到难燃材料水平。此外，对复合材料的热分析表明其热稳定性增强。本研究表明该复合材料具有良好的隔热性能和阻燃性，可应用于隔热领域。
