CAJ | 학술논문

采用熔融开炼方法制备聚乙烯(PE)/竹粉木塑复合材料(WPC),通过平菇和凤尾菇两种真菌对WPC进行微生物降解实验,利用变色圈、扫描电子显微镜、气相色谱–质谱(GC–MS)和差示扫描量热分析等手段研究WPC的微生物降解性能.变色圈试验表明平菇和凤尾菇均对竹粉和WPC有较好的降解作用,其中平菇的降解能力更明显;降解产物的GC–MS分析显示真菌不仅能降解WPC中的竹粉,也使PE基体发生一定的降解,破坏PE分子链的规整性,导致PE的熔点降低.
채용용융개련방법제비취을희(PE)/죽분목소복합재료(WPC),통과평고화봉미고량충진균대WPC진행미생물강해실험,이용변색권、소묘전자현미경、기상색보–질보(GC–MS)화차시소묘량열분석등수단연구WPC적미생물강해성능.변색권시험표명평고화봉미고균대죽분화WPC유교호적강해작용,기중평고적강해능력경명현;강해산물적GC–MS분석현시진균불부능강해WPC중적죽분,야사PE기체발생일정적강해,파배PE분자련적규정성,도치PE적용점강저.
Polyethylene/bamboo flour plastic-wood composites(WPC) were prepared through melt mixing.The fungal degradation of WPC by ostreatus and pleurotus was investigated by color ring test,SEM,GC–MS and DSC.Color ring test shows that bamboo flour and WPC are well decayed by ostreatus and pleurotus,especially by ostreatus.GC–MS results indicate that fungal not only decays the bamboo flour in WPC,but also decays PE matrix,resulting in the decrease of melting point of PE matrix due to the low tacticity.