
Effect of Additive Compounding on Acidic Properties of Polyethanol
GE Xi-hui, YIN Tian, JIANG Zhi-kui, SUN Xiao-jie, WANG Rong, SUN Miao-miao
Effect of Additive Compounding on Acidic Properties of Polyethanol
Modified polyglycolic acid (PGA) was prepared by melt blending and reactive extrusion. The effects of chain extenders, crosslinking agents and lubricants on melt fluidity, dynamic rheological properties, thermal stability, and crystallization properties of modified samples were studied. The results show that the melt strength of samples are significantly improved by using ADR chain extender and BIBP crosslinking agent simultaneously, the melt mass flow rate is decreased by 73.6% compared to pure PGA. The thermal stability of modified samples is also improved, with increasing the 5% thermal decomposition temperature by 7 ℃. With the addition of chain extender and crosslinking agent, the degree of crystallinity of PGA samples are decreased, the number of crystal nuclei are decreased, and the spherulite size are increased. The degree of cross-linking of the sapmles with adding chain extender and crosslinking agent at the same time is increased, resulting in imperfect crystallization and the formation of irregular crystals. Molecular motion are promoted by lubricants, and the crystallization temperature of PGA sample is decreased from 179.3 ℃ without addition to 173.9 ℃ after addition.
Polyglycolic acid / Chain extender / Crosslinking agent / Rheological properties / Crystallization property
1 |
谭博雯,孙朝阳,计扬,等.聚乙醇酸的合成、改性与性能研究综述[J].中国塑料,2021,35(10):137-145.
|
2 |
钟正冲.聚酯弹性体对聚乙醇酸增韧改性研究[D].北京:北京化工大学,2023.
|
3 |
陈群,许平,崔爱军.煤基聚乙醇酸技术进展[J].化工进展,2011,30(1):172-180.
|
4 |
汪朝阳,赵耀明.聚乙醇酸类生物降解高分子[J].广州化学,2004,29(1):50-56.
|
5 |
王淑敏,商宽祥,谢鸿洲,等.聚乙醇酸产业现状和发展前景[J].化肥设计,2021,59(4):1-4.
|
6 |
崔爱军,李战飞,陈群,等.生物降解材料聚羟基乙酸及其结晶性能研究[J].化工新型材料,2012,40(7):87-90.
|
7 |
张燚.聚羟基乙酸增韧及其性能的研究[J].镇江:江苏科技大学,2020.
|
8 |
崔爱军,朱晨浩,祝龙生,等.抗氧剂对聚乙醇酸热稳定性能的影响[J].化工新型材料,2019,47(8):197-200.
|
9 |
陈兰兰,孙小杰,王荣,等.助剂复配对聚乙醇酸性能的影响[J].塑料工业,2021,49(1):145-148.
|
10 |
阿部俊辅.逐次双轴拉伸聚乙醇酸膜、该聚乙醇酸膜的制造方法以及多层膜:101945749A[P].2011-01-12.
|
11 |
|
12 |
王国振.PBAT增韧PLA可降解共混体系的制备及性能研究[D].广州:华南理工大学,2020.
|
13 |
赵龙,徐鼐,庞素娟,等.PLA增强改性PBS共混物制备及性能[J].工程塑料应用,2020,48(5):39-45.
|
14 |
孙苗苗,孙小杰,王荣,等.扩链剂对PGA/PBS共混体系结构及性能的影响[J].塑料科技,2022,50(4):5-9.
|
15 |
吕怀兴,杨彪,许国志,等.聚丁二酸丁二醇酯与聚乳酸共混型全生物降解材料的结构和性能研究[J].塑料制造,2008,12(7):72-75.
|
16 |
赵海鹏,胡顺朋,夏雪莲,等.扩链剂增容PBAT/PLA共混体系结构及性能[J].工程塑料应用,2021,49(10):131-137.
|
17 |
|
/
〈 |
|
〉 |