国产高密度聚乙烯在电子级化学品包装桶上的应用研究  

The Application of Domestic High-density Polyethylene in Electronic Grade Chemical Packaging Barrels

作　　者：朱伟 林胜奇 吴希 雷佳伟 Zhu Wei;Lin Shengqi;Wu Xi;Lei Jiawei(SINOPEC-SK(Wuhan)Petrochemical Co.,Ltd.,Wuhan 430082,China)

机构地区：[1]中韩(武汉)石油化工有限公司,湖北武汉430082

出　　处：《广东化工》2024年第12期1-3,56,共4页Guangdong Chemical Industry

摘　　要：将中韩石化高密度聚乙烯HD570制备成200升包装桶,并在电子级化学品包装方面进行试用研究。结果显示HD570满足堆码和跌落测试,在电子化学品盛装测试中金属离子析出结果合格,但颗粒物析出结果不合格。通过熔指仪、万能材料试验机测试等手段比较了中韩HD570与包装桶中外层料1158P的物理性能,表明中韩HD570取代中外层料1158P在产品拉伸屈服应力、弯曲模量及加工性能方面更优。进一步对HD570包装不合格的原因进行探究,多方面比较了HD570和进口料NH8D01A的性质,显示HD570原料在产品灰分和产品结晶度上低于NH8D01A,低分子量聚合物含量高于NH8D01A,再加上添加剂配方的影响,导致HD570在电子级化学品包装颗粒物析出测试不合格。本研究为替代进口的超纯内层料开发提供了思路和建议。The high-density polyethylene HD570 from Sinopec-SK petrochemical company was prepared into 200-liter packaging barrels and subjected to experimental research in the packaging of electronic-grade chemicals.The results showed that HD570 passed stacking and dropping tests,and the metal ion precipitation test for electronic chemical packaging met the standards,but the particle precipitation test did not.The properties of HD570 and 1158P for preparing the outer and middle layers of ultra pure barrels were compared by means of melt flow index and universal material testing machine,indicating that HD570 outperformed 1158P in terms of product tensile yield stress,flexural modulus,and processing performance.Further investigation was conducted on the reasons for the unqualified packaging of HD570,and the properties of HD570 and imported material NH8D01A were compared from multiple aspects.The results showed that the raw material HD570 had higher ash content,higher content of low molecular weight polymers,and lower crystallinity than NH8D01A.Combined with the effects of additive formulations,all these factors led to HD570 failing the particle precipitation test for electronic-grade chemical packaging.This study provides insights and recommendations for the development of domestically produced ultra-pure inner layer materials as substitutes for imported ones.

关 键 词：高密度聚乙烯 超纯桶 大中空 化学品包装 

分 类 号：TQ[化学工程]