| 高密度聚乙烯管材专用树脂的双检测器凝胶色谱测定 |
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| 引用本文： | 姚自余,贾慧青,杨芳,唐迎春,张宇.高密度聚乙烯管材专用树脂的双检测器凝胶色谱测定[J].石化技术与应用,2010,28(5):423-426. |
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| 作者姓名： | 姚自余 贾慧青 杨芳 唐迎春 张宇 |
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| 作者单位： | 中国石油兰州化工研究中心,甘肃,兰州,730060 |
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| 摘 要： | 建立了一种采用示差折光计-自动黏度计双检测器凝胶色谱测定高密度聚乙烯(HDPE)管材专用树脂相对分子质量(M)及其分布的方法,并对仪器的稳定性和方法的精密度进行了考察。结果表明,该方法无须借助聚合物的K和α值,便可直接测定HDPE管材专用树脂"真实"的M及其分布。方法精密度高,具有较强的实用性。
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| 关 键 词： | 凝胶色谱 高密度聚乙烯 示差/黏度双检测器 相对分子质量 相对分子质量分布 管材专用树脂 |
Determination of relative molecular mass and its distribution of speciality high density polyethylene resin for pipe by gel permeation chromatography with refractometer/viscometer detectors combination |
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| Yao Ziyu,Jia Huiqing,Yang Fang,Tang Yingchun,Zhang Yu.Determination of relative molecular mass and its distribution of speciality high density polyethylene resin for pipe by gel permeation chromatography with refractometer/viscometer detectors combination[J].Petrochemical Technology & Application,2010,28(5):423-426. |
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| Authors: | Yao Ziyu Jia Huiqing Yang Fang Tang Yingchun Zhang Yu |
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| Affiliation: | (Lanzhou Chemical Research Center,PetroChina,Lanzhou 730060,China) |
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| Abstract: | A method of determining the relative molecular mass and its distribution of speciality high density polyethylene（HDPE） resin for pipe by gel permeation chromatography with double detectors,the refractive index detector and the viscosity detector was established,and the stability of the instrument and the precision of the method were examined.The results showed that the method could determine the relative molecular mass and its distribution of speciality HDPE resin for pipe without the K,α values of the polymer and had excellent precision and availability easily. |
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| Keywords: | gel permeation chromatography high density polyethylene refractometer/viscometer detectors combination relative molecular mass relative molecular mass distribution pipe speciality resin |
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