耐高温无机聚合物胶结材料的开发研究

Development of heat resistance inorganic geo-polymer bonded materials

研究尝试以无机聚合物取代环氧树脂进行可行性实验,在实验过程中发现无机聚合物容易产生干缩裂缝,且与碳纤维的胶合、围束性能较弱,同时经高温（700-800℃）定压加温之后碳纤维呈现碎裂现象。但经检讨其在围束补强后定载加温模式,确实较现行以环氧树脂作为胶合补强材料有较高的抗温行为。为寻求更适合的取代物,尝试以玻璃纤维替代碳纤维作为围束补强材料的可行性实验,克服前述干缩裂缝缺点,以及探求无机聚和物厚度与热传导的关系。

The possibility of using geo-polymer to replace Epoxy was explored in this paper. The experiment found that geo-polymer can easily produce shrinkage and cracks, as binding with CFRP will weaken the confinement effect. In the meantime, under the high temperature up to 700- 800℃ and high pressure, the specimen covered by CFRP may easily crack. However, the studying of the pattern under fixed pressure and temperature after reinforcing the confinement indicates that it has much higher heat-tolerance than using Epoxy as the binding material. In order to search for proper replacement material, the study examined the possibility of using FRP to replace CFRP as the confinement material, and aimed at finding the solution to overcome the defect of shrinkage and cracks, and the relationship between the thickness of geo-polymer and the heat transmission.