摘要
以己二酸(AA)、对苯二甲酸(PTA)、丁二醇(BDO)为单体,合成了聚己二酸丁二醇-co-对苯二甲酸丁二醇酯(PBAT),考察了酯化方式、酯化时间、缩聚温度、稳定剂等关键工艺对合成过程及产品性能的影响,确定了制备良好色相PBAT树脂的工艺条件:共酯化方式,酯化时间185 min,缩聚温度248～250℃,稳定剂添加量70μg/g。对AA理论加入量与实测值差异分析发现:己二酸以2～3个聚合度的己二酸低聚物形式通过真空系统抽出,可以再聚合使用。
Poly(butylene adipate-co-terephthalate)(PBAT) was synthesized by the monomers of adipic acid(AA), terephthalic acid(PTA) and butanediol(BDO). The effects of the esterification method, esterification time, polycondensation temperature, stabilizer and other key processes on the synthesis process and product properties were investigated. The technological conditions for the preparation of a good hue PBAT resin were determined: co-esterification method, esterification time 185 min, polycondensation temperature 248 ～250 ℃, stabilizer at about 70 μg/g. Analysis of the difference between the theoretical addition of AA and the measured values showed that adipic acid could be repolymerized by vacuum system in the form of 2 to 3 polymeric adipic acid oligomers.
引文
[1] 王佳琪,徐莎莎.新疆棉田白色污染现状、问题及治理对策研究[J].农村经济与科技,2016,27(9):32-33.
[2] 刘香丽.白色污染治理现状与对策[J].当代化工研究,2017,12:65-66.
[3] 严昌荣,何文清,薛颖昊,等.生物降解地膜应用与地膜残留污染防控[J].生物工程学报,2016,32(6):748-760.
[4] 谭志坚,王朝云,易永健,等.可生物降解材料及其在农业生产中的应用[J].塑料科技,2014,42(2):83-89.
[5] 张磊.地膜用生物降解支化共聚酯的吹膜加工与改性[D].杭州:浙江大学,2015.
[6] 张维,季君晖,赵剑,等.生物质基聚丁二酸丁二醇酯(PBS)应用研究进展[J].化工新型材料,2017,38(7):1-5.
[7] 何文清,刘琪,李元桥,等.生物降解地膜新材料的发展及产业化前景[J].生物产业技术,2017,(2):7-13.
[8] 潘宏伟.聚对苯二甲酸丁二醇-co-己二酸丁二醇酯(PBAT)生物降解膜的制备及性质研究[D].长春:长春工业大学,2016.
[9] 王晓慧.脂肪族_芳香族共聚酯合成新工艺及性能研究[D].北京:北京化工大学,2011.
[10] 苑仁旭,徐依斌,麦堪成.生物降解PBAT的合成与表征[J].化工新型材料2012,40(12),85-88.
[11] 马一萍,张乃文,杨军伟,等.PBAT的制备与性能[J].塑料,2010,39(4):98-101.
[12] Kim S,Park S W,Lee K.Fishing performance of environmentally friendly tubular pots made of biodegradable resin (PBS/PBAT) for catching the conger eel Conger myriaster[J].Fisheries Science,2014,80(5):887-895.
[13] 潘宏伟,郎贤忠,赵岩,等.聚对苯二甲酸丁二醇-己二酸丁二醇共聚酯/热塑性淀粉生物降解膜的制备及性能[J].高分子材料科学与工程,2016,(10):137-142.
[14] 潘祖仁.高分子化学[M].3版.北京:化学工业出版社,2003:230-232.
[15] 魏高富.聚酯热稳定性的研究[J].合成技术及应用,2004,19(1):13-15.
[16] 王迷霞,徐士超,卢言菊,等.有机低聚物分离方法研究进展[J].化工新型材料,20169(01):10-12.
[17] Gan Z H,Kuwabara K,Yamamoto M,et al.Solid-state structures and thermal properties of aliphatic-aromatic poly(butylene adipate-co-butylene terephthalate) copolyesters[J].Polymer Degradation and Stability,2004,(83):289-300.
