PETG的制备与性能研究  

Preparation and performance study of PETG

作　　者：王凯莉 Wang Kaili(Sichuan Yibin Plus Packaging Material Co.LTD.,Yibin 644000,Sichuan,China)

机构地区：[1]四川省宜宾普拉斯包装材料有限公司聚酯事业部,四川宜宾

出　　处：《橡塑技术与装备》2025年第3期10-13,共4页China Rubber/Plastics Technology and Equipment

摘　　要：乙二醇、对苯二甲酸、1,4-环己烷二甲醇(CHDM)通过反应得到聚对苯二甲酸乙二醇酯-1,4-环己烷二甲醇酯(PETG),研究CHDM含量为20%~50%的PETG的性能。随着CHDM含量的增加PETG的冲击强度逐渐增加最高值为9.1 kJ/m^(2),但是反应速率、拉伸强度、弯曲强度和弯曲模量逐渐降低,玻璃化转变温度、热变形温度、透光率逐渐升高。最终制备出热变形温度为72 ℃透光率为89.3%的高透明耐温聚合物。Researchers used ethylene glycol,terephthalic acid,and 1,4-cyclohexanedimethanol (CHDM) to obtain polyethylene terephthalate 1,4-cyclohexanedimethanol (PETG) by reaction.Meanwhile,the performance of PETG with CHDM content ranging from 20% to 50% was studied.As the CHDM content increases,the impact strength of PETG gradually increases,with a maximum value of 9.1 kJ/m~2,but the reaction rate,tensile strength,bending strength,and bending modulus gradually decrease;The glass transition temperature,thermal deformation temperature,and transmittance gradually increase.Finally,a highly transparent and heat-resistant polymer with a thermal deformation temperature of 72 ℃ and a light trans mittance of 89.3% was prepared.

关 键 词：聚对苯二甲酸乙二醇酯-1 4-环己烷二甲醇酯(PETG) CHDM 透光率 冲击强度 

分 类 号：TQ330.44[化学工程—橡胶工业]