CAJ | 학술논문

采用高浓度氯化锌乙醇溶液为反应体系，高效催化降解环氧树脂基炭纤维( CF/EP)复合材料并回收炭纤维。考察反应温度与氯化锌浓度对树脂基体降解的影响，探讨环氧树脂在氯化锌乙醇溶液中的催化降解机理。结果表明，复合材料中的树脂基体完全降解，炭纤维表面微观结构基本不变，且回收炭纤维的强度最高为原始炭纤维强度的97.1%，但表面含氧官能团有所减少。
채용고농도록화자을순용액위반응체계，고효최화강해배양수지기탄섬유( CF/EP)복합재료병회수탄섬유。고찰반응온도여록화자농도대수지기체강해적영향，탐토배양수지재록화자을순용액중적최화강해궤리。결과표명，복합재료중적수지기체완전강해，탄섬유표면미관결구기본불변，차회수탄섬유적강도최고위원시탄섬유강도적97.1%，단표면함양관능단유소감소。
Concentrated zinc chloride in ethanol was used to decompose the epoxy in carbon fiber/epoxy ( CF/EP) composites to recover carbon fibers. Factors affecting the degradation rate such as reaction temperature and zinc chloride concentration were inves-tigated. The properties of the products decomposed by epoxy and the recovered carbon fibers were characterized. Results indicated that the molecular weight of the decomposed epoxy decreased and its solubility in ethanol increased with the reaction time. A signifi-cant fraction of the C-O bonds in epoxy is broken down by the degradation. The strength of the recovered fibers is 97. 1% of the original ones and their microstructure was only slightly changed, but the amount of the oxygen-containing functional groups on the surface of the recovered fibers decreased.