TG-FTIR技术在聚氨酯包和物对聚甲醛的热稳定作用中的应用  

Application of TG-FTIR Analyzing Technology in Thermal Stability of POM with TPU Inclusion Complex

作　　者：焦旗[1] 林青青[2] 张彩霞[1] 王莲[2] 罗春桃[1] 李勇进[2] 

机构地区：[1]神华宁夏煤业集团有限责任公司煤制油化工研发中心,宁夏银川750411 [2]杭州师范大学,浙江杭州310016

出　　处：《塑料工业》2017年第11期43-46,共4页China Plastics Industry

基　　金：国家自然科学基金项目(51403046)

摘　　要：利用热失重-红外光谱(TG-FTIR)联用分析技术研究了聚氨酯包和物(IC-TPU)对聚甲醛(POM)的热稳定性作用。结果表明,TPU中的氨基以及β环糊精(β-CD)中的羟基的协同作用使得POM的热稳定性相比于单纯加入TPU和β-CD的POM更加显著。IC-TPU的加入能够明显延缓聚甲醛的降解,其甲醛以及一氧化碳等降解产物的产生明显滞后。The thermal stability of polyacetal （POM） with thermoplastic polyurethane （TPU） inclusion complex was investigated by thermal gravimetry-fourier transform infrared spectroscopy （TG-FTIR） analyzing technology. Results show that the synergistic effect of the hydroxyl groups of TPU and the hydroxyl groups of β-CD in IC-TPU makes POM better thermal stability than that of POM incorporating TPU or β-CD alone. The addition of IC-TPU can significantly delay the degradation of POM, so the degradation products such as formaldehyde and carbon monoxide were produced more slowly.

关 键 词：聚甲醛 包和物 热失重-红外光谱联用分析 热降解 

分 类 号：TQ326.51[化学工程—合成树脂塑料工业]