己二酸环氧环己烷酯改性水溶性聚酯的制备及其膜性能研究  

Preparation and membrane properties of epoxy cyclohexane adipate-modified watersoluble polyester

作　　者：邓倩 孙屹亭 马子斐 陆震 吕东昊 肖波 李继新[1] DENG Qian;SUN Yiting;MA Zifei;LU Zhen;LYU Donghao;XIAO Bo;LI Jixin(College of Petrochemical Engineering,Shenyang University of Technology,Liaoyang 111003,China)

机构地区：[1]沈阳工业大学石油化工学院,辽宁辽阳111003

出　　处：《中国塑料》2022年第2期27-32,共6页China Plastics

摘　　要：以对苯二甲酸(PTA)、乙二醇(EG)、间苯二甲酸-5-磺酸钠(SIPA)为主要原料,自制己二酸环氧环己烷酯(ACHD)为改性剂,制备了酸值为9~14 mg KOH/g、羟值为85~110 mg KOH/g、特性黏度为0.26~0.31 dL/g的己二酸环氧环己烷酯改性水溶性聚酯(MWPET),并进一步制备了厚度≤45μm、光泽度约100 Gu的MWPET涂膜。通过红外光谱仪(FTIR)、核磁共振仪(^(1)H-NMR)和质谱仪等对ACHD及MWPET进行表征,并对MWPET涂膜的铅笔硬度、附着力、耐水性、耐化学性及吸水率进行了测试。结果表明,ACHD已被成功合成;随着ACHD含量的增加,MWPET的玻璃化转变温度逐渐降低,颜色逐渐加深,水溶性及水溶液透明性先变好后变差,MWPET涂膜的铅笔硬度、耐水性和耐化学性都有所增强,附着力先增强后减弱,耐冲击性无明显变化。Self-made epoxy cyclohexyl adipate(ACHD)-modified water-soluble polyester(MWPET)was prepared with terephthalic acid(PTA),ethylene glycol(EG)and sodium isophthalic acid-5-sulfonate(SIPA)as main raw materials and epoxy cyclohexane adipate(ACHD)as a modifier,and it achieved an acid value of 9~14 mg KOH/g,a hydroxyl value of 85~110 mg KOH/g,and an intrinsic viscosity of 0.26~0.31 dL/g.The MWPET membrane with a thickness≤45μm and a gloss of about 100 Gu was further prepared.ACHD and MWPET were characterized using infrared spectrometer,nuclear magnetic resonance,and mass spectrometer.The pencil hardness,adhesion,water resistance,chemical resistance,and water absorption of MWPET membrane were analyzed.The analysis results confirmed the successful synthesis of ACHD.With increasing the ACHD content,the MWPET showed a decrease in glass transition temperature of decreased,its color gradually deepened,and its water solubility and water solution transparency became better at first and then tended to become worse;There was an enhancement in the hardness,water resistance and chemical resistance of the membrane,and its adhesion became stronger at first and then became weaker.The impact resistance seems to show no obvious change.

关 键 词：己二酸环氧环己烷酯 水溶性聚酯 膜性能 

分 类 号：TQ328[化学工程—合成树脂塑料工业]