| PBT／PET共混体系相容性研究 |
| |
| 引用本文： | 张彦,张瑜,陈彦模. PBT／PET共混体系相容性研究[J]. 合成纤维工业, 2006, 29(1): 32-34 |
| |
| 作者姓名： | 张彦 张瑜 陈彦模 |
| |
| 作者单位： | 东华大学纤维材料改性国家重点实验室,上海,200051 |
| |
| 基金项目： | 上海市经委项目(2002A012) |
| |
| 摘 要： | 将聚对苯二甲酸丁二醇酯(PBT)与聚对苯二甲酸乙二醇酯(PET)熔融共混,通过粘度匹配原则, 确定PBT／PET共混体系的熔体温度为275-285℃,在283℃时制得PBT／PET共混切片,并对其共混体系进行相容性研究。结果表明:PBT／PET共混体系的理论热焓均小于41．8 mJ,为热力学相容体系;由扫描电镜观察PBT／PET共混体系在PBT和PET交界处发生了相分离,当PBT与PET共混比越接近,相分离程度越明显;DSC分析表明PBT／PET共混体系在非晶区相容,晶区不相容。
|
| 关 键 词： | 聚对苯二甲酸丁二醇酯 聚对苯二甲酸乙二醇酯 相容性 共混 热性能 |
| 文章编号： | 1001-0041(2006)01-0032-03 |
| 收稿时间： | 2005-04-29 |
| 修稿时间： | 2005-11-12 |
Study on compatibility of PBT/PET blend systems |
| |
| Zhang Yan,Zhang Yu,Chen Yanmo. Study on compatibility of PBT/PET blend systems[J]. China Synthetic Fiber Industry, 2006, 29(1): 32-34 |
| |
| Authors: | Zhang Yan Zhang Yu Chen Yanmo |
| |
| Affiliation: | State Key Lab for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 200051 |
| |
| Abstract: | Polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) were melted and blended to prepare PBT/ PET blend systems. The melt temperature of PBT/PET blend system was determined as 275 -285℃ according to viscosity accordance principle. The PBT/PET blend chips can be produced at 283℃. The compatibility of PBT/PET blend systems was studied. The results showed that the PBT/PET blend systems showed the enthalpy less than 41. 8 mJ, which belonged to thermo-dynamic compatible system. The phase separation was observed at the interface between PBT and PET by scanning electron microscopy. The more close to 1 the mass fraction ratio of PBT and PET was, the greater the phase separation was. The DSC results showed that the PBT/PET blend system was compatible in amorphous region, but incompatible in crystalline region. |
| |
| Keywords: | polybutylene terephthalate polyethylene terephthalate compatibility blend thermal behavior |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
