中国塑料2024，Vol.38Issue(10)：81-86,6.DOI:10.19491/j.issn.1001-9278.2024.10.015
浅析注塑工艺对二醋酸纤维素力学性能的影响
Influence of injection molding process on mechanical properties of cellulose diacetate
成名 1王永康 1何杰 1王如意 1向光会1
作者信息
- 1. 四川普什醋酸纤维素有限责任公司 四川 宜宾 644300
- 折叠
摘要
Abstract
Cellulose diacetate plastic(DACP)was injection molded under different process conditions with a change in the injection temperature,injection speed,pressure,and other conditions one by one.The mechanical properties of the injection-molded products were investigated.The results indicated that with a change in the injection conditions,the molded products presented a regular change in their performance.The injection temperature exhibited a greater influence on the toughness and elongation at break of the molded products.Their toughness was further enhanced with an increase in the injection temperature,followed by a significant improvement in the elongation at break.However,the molded products started yellowing at a temperature of above 230℃.An over high or over low injection speed might lead to dete-rioration in the impact resistance of the molded products.The products molded at a medium speed of 55%exhibited the highest impact strength.The change of injection pressure generated little effect on the performance of the molded prod-ucts;however,an excessive pressure led to some defects such as flashing.The molded products exhibited the optimal overall performance at an injection temperature of 225℃,an injection speed of 55%,and an injection pressure of 9 MPa In this sense,selecting an appropriate injection molding process condition can improve the performance of the injection-molded DACP products.关键词
二醋酸纤维素/注射成型/力学性能/成型工艺/眼镜架/应力Key words
cellulose acetate/injection molding/mechanical property/molding process/spectacles frame/stress分类
化学化工引用本文复制引用
成名,王永康,何杰,王如意,向光会..浅析注塑工艺对二醋酸纤维素力学性能的影响[J].中国塑料,2024,38(10):81-86,6.
