木粉、废旧橡胶和高密度聚乙烯复合材料的
热解动力学特性

doi:10.3969/j.issn.1000-2006.2014.06.026

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南京林业大学学报（自然科学版） ›› 2014, Vol. 57 ›› Issue (06): 135-140.doi: 10.3969/j.issn.1000-2006.2014.06.026

木粉、废旧橡胶和高密度聚乙烯复合材料的热解动力学特性

陈玲¹, 黄润州¹,刘秀娟¹,周秉亮¹,徐信武^1*,吴清林²,杨勋³,沈金祥³

1.南京林业大学材料科学与工程学院,江苏南京 210037;
2.路易斯安娜州立大学林产品试验室,美国 70803;
3.德华兔宝宝装饰新材研究院,浙江德清 313200

出版日期:2014-12-31 发布日期:2014-12-31
基金资助:
收稿日期:2013-12-16 修回日期:2014-03-19
基金项目:江苏省高校自然科学研究重大项目(13KJA220003); 江苏高校优势学科建设工程资助项目(PAPD)
第一作者:陈玲,硕士生。*通信作者:徐信武,教授,博士。E-mail: xucarpenter@aliyun.com。
引文格式:陈玲, 黄润州,刘秀娟,等. 木粉、废旧橡胶和高密度聚乙烯复合材料的热解动力学特性[J]. 南京林业大学学报:自然科学版,2014,38(6):135-140.

Thermal decomposition kinetics of wood/rubber/HDPE composites

CHEN Ling¹,HUANG Runzhou¹,LIU Xiujuan¹,ZHOU Bingliang¹,XU Xinwu^1*, WU Qinglin²,YANG Xun³, SHEN Jinxiang³

1. College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China;
2. Forest Products Lab, Louisiana State University, Louisiana 70803, USA;
3. Dehua Tubaobao Institute of Decoration Materials, Deqing 313200, China

Online:2014-12-31 Published:2014-12-31

摘要/Abstract

摘要： 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。

Abstract: 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 rubber, 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, synergistically react in WRPC decomposition process, and rubber addition content has evident influence on the thermal decomposition behaviors of WRPC.

中图分类号:

TQ325

陈玲,黄润州,刘秀娟,等. 木粉、废旧橡胶和高密度聚乙烯复合材料的热解动力学特性[J]. 南京林业大学学报（自然科学版）, 2014, 57(06): 135-140.

CHEN Ling,HUANG Runzhou,LIU Xiujuan,ZHOU Bingliang,XU Xinwu, WU Qinglin,YANG Xun, SHEN Jinxiang. Thermal decomposition kinetics of wood/rubber/HDPE composites[J].Journal of Nanjing Forestry University (Natural Science Edition), 2014, 57(06): 135-140.DOI: 10.3969/j.issn.1000-2006.2014.06.026.

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木粉、废旧橡胶和高密度聚乙烯复合材料的热解动力学特性

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木粉、废旧橡胶和高密度聚乙烯复合材料的 热解动力学特性

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木粉、废旧橡胶和高密度聚乙烯复合材料的热解动力学特性