文献类型：期刊文献

英文题名：Effect of Environmental Conditions on the Mechanical Properties and Fungal Degradation of Polycaprolactone/Microcrystalline Cellulose/Wood Flour Composites

作者：Sabo, Ronald[1] Jin, Liwei[2] Stark, Nicole[1] Ibach, Rebecca E.[1]

第一作者：Sabo, Ronald

通信作者：Sabo, R[1]

机构：[1]US Forest Serv, USDA, Forest Prod Lab, Madison, WI 53726 USA;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China

年份：2013

卷号：8

期号：3

起止页码：3322-3335

外文期刊名：BIORESOURCES

收录：;EI(收录号：20132416415722);Scopus(收录号：2-s2.0-84878661521);WOS:【SCI-EXPANDED(收录号:WOS:000323370400013)】；

语种：英文

外文关键词：Thermoplastic resin; Polycaprolactone; Wood flour; Microcrystalline cellulose; Composite; Environmental degradation; Mechanical properties

摘要：Polycaprolactone (PCL) filled with microcrystalline cellulose (MCC), wood flour (WF), or both were characterized before and after exposure to various environmental conditions for 60 days. PCL/WF composites had the greatest tensile strength and modulus compared to neat PCL or PCL composites containing MCC. Electron microscopy indicated better adhesion between WF particles and PCL than between MCC particles and PCL. Neither wood flour nor MCC cellulose appeared to significantly affect the crystallinity of PCL. Environmental conditioning resulted in only minor deterioration of mechanical properties, although samples soaked in water had greater deterioration of mechanical properties than those in high humidity or freezing environments. After a modified 12-week soil block test, specimens made with wood flour lost weight and showed signs of decay after exposure to the brown-rot fungus Gloeophyllum trabeum.