CAJ | 학술논문

将木粉、高密度聚乙烯（ HDPE）与不同含量的废旧橡胶粉复合制备木橡塑复合材料，采用热重分析法（ TGA）研究各组分材料及复合材料的热解动力学特性，并引入Flynn?Wall?Ozawa模型量化了组分及复合材料的表观活化能。结果表明：木粉、HDPE、废旧橡胶粉复合材料（ WRPC）的热解出现两个显著的失重区（230～380℃和430～580℃），分别对应木粉/废旧橡胶和HDPE的热降解。木粉、废旧橡胶和HDPE热解过程平均活化能值分别为179．2、243．8和246．8 kJ/mol，WPC（木粉、HDPE复合材料）平均活化能为239．3 kJ/mol，WRPC活化能值较WPC低（200．3～208．4 kJ/mol）。活化能的变化表明木、橡、塑3种原料在复合材料的热解过程中具有协同效应，而废旧橡胶的掺入对复合材料的热降解特性发挥了显著的调控作用。
장목분、고밀도취을희（ HDPE）여불동함량적폐구상효분복합제비목상소복합재료，채용열중분석법（ TGA）연구각조분재료급복합재료적열해동역학특성，병인입Flynn?Wall?Ozawa모형양화료조분급복합재료적표관활화능。결과표명：목분、HDPE、폐구상효분복합재료（ WRPC）적열해출현량개현저적실중구（230～380℃화430～580℃），분별대응목분/폐구상효화HDPE적열강해。목분、폐구상효화HDPE열해과정평균활화능치분별위179．2、243．8화246．8 kJ/mol，WPC（목분、HDPE복합재료）평균활화능위239．3 kJ/mol，WRPC활화능치교WPC저（200．3～208．4 kJ/mol）。활화능적변화표명목、상、소3충원료재복합재료적열해과정중구유협동효응，이폐구상효적참입대복합재료적열강해특성발휘료현저적조공작용。
Wood?waste rubber?HDPE composites ( WRPC) were made with different rubber content. Thermogravimetric analysis ( TGA) method was applied to investigate the thermal decomposition kinetics of wood flour, HDPE, waste rub?ber, WPC, and WRPC. The corresponding apparent activation energy ( AAE) values were calculated with the Flynn?Wall?Ozawa model. The results showed that WRPCs have two weight loss stages at 230-380℃ and 430-580℃ due to thermal decomposition of wood/rubber and HDPE, respectively. The AAE values for wood, waste rubber, HDPE were 179.2, 243. 8, 246. 8 kJ/mol, respectively, while 239. 3 kJ/mol for WPC. Decreased AAE values were found for WRPCs, i.e., 200.3-208.4 kJ/mol. It?s concluded that the three raw materials, i.e., wood, rubber, and HDPE, syner?gistically react in WRPC decomposition process, and rubber addition content has evident influence on the thermal de?composition behaviors of WRPC.