中国塑料2024，Vol.38Issue(5)：82-87,6.DOI:10.19491/j.issn.1001-9278.2024.05.015
挤出吹塑工艺对PBAT/PLA共混体系微观结构与性能的影响
Effect of extrusion blowing process on microstructure and properties of PBAT/PLA blend
杨超永 1郭金强 1王富玉 1张玉霞1
作者信息
- 1. 北京工商大学轻工科学与工程学院,北京 100048
- 折叠
摘要
Abstract
The in-situ fibrillation films based on poly(adipic acid/butylene terephthalate)(PBAT)/poly(lactic acid)(PLA)blends were prepared by extrusion blowing through adjusting the extrusion process conditions such as die temper-ature and traction speed.The results indicated that PLA tended to form fibers in PBAT/PLA blend system with an in-crease in the traction speed at lower die temperature.The formed fibers tended to refine with an increase at first and then a decrease in the crystallinity.The longitudinal tensile strength and tensile modulus of in-situ fiber formed films also in-creased at first and then tended to decrease.The effect of PLA in-situ fibrillation was the most obvious in the blend at a die temperature of 150℃and a traction speed of 5.0 m/min.Meantime,the longitudinal tensile strength and modulus of the films reached 40.0 and 723.9 MPa,respectively.Their tensile strength was 20%higher than that of pure PBAT,whereas their tensile modulus was much higher than that of pure PBAT.关键词
聚己二酸/对苯二甲酸丁二醇酯/聚乳酸/原位成纤/挤出吹塑/牵引速度/机头温度/微观结构/薄膜Key words
poly(adipic acid/butylene terephthalate)/poly(lactic acid)/in-situ fibrillation/extrusion blow molding/traction speed/die temperature/microstructure/film分类
化学工程引用本文复制引用
杨超永,郭金强,王富玉,张玉霞..挤出吹塑工艺对PBAT/PLA共混体系微观结构与性能的影响[J].中国塑料,2024,38(5):82-87,6.
