塑料科技2017，Vol.45Issue(3)：30-33,4.DOI:10.15925/j.cnki.issn1005-3360.2017.03.002
乙烯-乙酸乙烯酯共聚物增韧改性聚甲醛的工艺研究
Study on Technology of Polyacetal Toughened by Ethylene-Vinyl Acetate Copolymer
沈晓洁 1李雪健 1王允枭 1邱桂学1
作者信息
- 1. 青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042
- 折叠
摘要
Abstract
Ethylene-vinyl acetate copolymer (EVA) was used to toughen polyacetal (POM) by melt mixing using a twin-screw extruder.The effects of EVA content and technical parameters on the mechanical properties of POM/EVA blends were studied,which technical parameters including screw speed of extruder,processing temperature and injection pressure.The results show that POM is effectively toughened by EVA,and the notched impact strength improves from 7.6 k J/m2 to 22.9 k J/m2 after the incorporation of 25％ EVA.When the content of EVA is 15％,the overall performance is at high point.Technical parameters have an effect on the mechanical properties,and while the screw speed is 200 r/min,processing temperature from 150 to 180℃,injection pressure at 8 MPa,the mechanical properties of POM/EVA blends are optimal.关键词
聚甲醛/乙烯-乙酸乙烯酯/增韧/力学性能/工艺参数Key words
Polyacetal/Ethylene-vinylacetate copolymer/Toughening/Mechanical properties/Technical parameters分类
化学化工引用本文复制引用
沈晓洁,李雪健,王允枭,邱桂学..乙烯-乙酸乙烯酯共聚物增韧改性聚甲醛的工艺研究[J].塑料科技,2017,45(3):30-33,4.
