高校化学工程学报Issue(3)：571-577,7.DOI:10.3969/j.issn.1003-9015.2015.03.011
HDPE/PP共混热裂解特性
Thermal Cracking of HDPE/PP Mixtures
摘要
Abstract
Thermal cracking of HDPE, PP and HDPE/PP mixtures and the interaction between the polymers were investigated with TGA (thermogravimetric analysis). The effects of cracking temperature, residence time, initial pressure and PP content on the yield and properties of the products were discussed, and the oil products were analyzed with simulated distillation, FT-IR and GC-MS. In addition, the chemical bond breaking energies of HDPE and PP were calculated and analyzed using Density Functional Theory. It was found that PP can decrease cracking temperature of HDPE and there presents significant interactions between HDPE and PP in the cracking process. Orthogonal experimental design reveales that the most important factor on oil yield is PP content, and factors affecting the light oil yield are in the order of residence time, cracking temperature, content of PP and initial pressure. The analysis results of FT-IR, GC-MS and theoretical calculation show that the oils obtained from thermal cracking of HDPE/PP are mainly aliphatic and can be used as feedstock to produce ethylene.关键词
聚烯烃/共混裂解/油/相互作用/化学键断裂能Key words
polyolefin/co-cracking/oil/interaction/chemical bond breaking energy分类
资源环境引用本文复制引用
闫国荀,景晓东,韩清珍,温浩,项曙光..HDPE/PP共混热裂解特性[J].高校化学工程学报,2015,(3):571-577,7.基金项目
多相复杂系统国家重点实验室资助项目(MPCS-2012-A-01). （MPCS-2012-A-01）
