云南化工2023，Vol.50Issue(z1)：14-17,4.DOI:10.3969/j.issn.1004-275X.2023.Supp.04
核磁共振法测定聚丙烯粉料二甲苯可溶物的影响因素及对策研究
Study on the influencing factors and countermeasures for the determination of xylene soluble matter in polypropylene powder by nuclear magnetic resonance method
代刚 1陈举 1王建平 1李章 1严凌1
作者信息
- 1. 云南云天化石化有限公司, 云南 昆明 650309
- 折叠
摘要
Abstract
Conduct experimental research on the stability of xylene soluble matter in polypropylene powder determined by nuclear magnetic reso-nance method,identify the main factors affecting the determination results,establish an improved method including new sample pretreatment method and experimental conditions,and achieve accurate and rapid determination of xylene soluble matter in intermediate product polypropylene powder under multiple operating conditions such as single brand production and different brand conversion in polypropylene equipment.The im-proved measurement method shortened the measurement time from 5 hours to 2 hours.The results were verified using the GB/T24282-2009 chemical extraction method,and the accuracy and precision met the requirements.It has been applied for a long time in the production of 4 types and 12 brands of polypropylene at Yunnan Yuntianhua Petrochemical Co.,Ltd.'s 150000 ton polypropylene plant.关键词
聚丙烯粉料/二甲苯可溶物/核磁共振/样品预处理Key words
Polypropylene powder/Xylene soluble substance/Nuclear magnetic resonance/Sample pretreatment分类
化学化工引用本文复制引用
代刚,陈举,王建平,李章,严凌..核磁共振法测定聚丙烯粉料二甲苯可溶物的影响因素及对策研究[J].云南化工,2023,50(z1):14-17,4.
