摘要
在常规PET生产中加入适当的第三单体和第四单体可制备低熔点聚酯。以精对苯二甲酸(PTA)和乙二醇(EG)为原料，加入适当的间苯二甲酸(或己二酸)、1，4-丁二醇(或6-己二醇)，聚乙二醇的质量分数(相对二元羧酸)为5％～8％，采用质量分数为0.005％～0.008％钛系催化剂，生产的低熔点聚酯熔点为110～120℃，且热稳定性好。
A low-melting point PET can be produced by adding the proper third and forth monomers during regular PET production. The low-melting point PET with the melting point in the range of 110 - 120℃and good thermal stability can be produced from purified terephthalic acid and ethylene glycol by adding proper amount of isophthalic acid or adipic acid and 1,4-butanediol or 1,6-hexamethylene glycol, 5% -8% polyethylene glycol based on dicarboxylic acid and 0. 005% -0. 008% Ti-containing catalysts by mass fraction.
出处
《合成纤维工业》
CAS
CSCD
北大核心
2005年第6期40-41,共2页
China Synthetic Fiber Industry
关键词
聚对苯二甲酸乙二酯
低熔点聚酯
共聚
力学性能
催化剂
制备
polyethylene terephthalate
low-melting point polyester
copolymerization
mechanical property
catalyst
preparation
