[1]许惠芳,慕雪梅,魏福庆,等.不同牌号LDPE树脂的流变与结构性能[J].石化技术与应用,2022,6:383-386.
XU Hui-fang,MU Xue-mei,WEI Fu-qing,et al.Rheological and structural properties of different grades of LDPE resins[J].Petrochemical technology & application,2022,6:383-386.
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《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]
- 期数:
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2022年6期
- 页码:
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383-386
- 栏目:
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- 出版日期:
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2022-11-10
文章信息/Info
- Title:
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Rheological and structural properties of different grades of LDPE resins
- 文章编号:
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1009-0045(2022)06-0383-04
- 作者:
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许惠芳1; 慕雪梅1; 魏福庆1; 邸麟婷1; 罗小城2; 张海毅2; 王多鹏3
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1.中国石油石油化工研究院 兰州化工研究中心,甘肃 兰州 730060;2.中国石油兰州石化公司,甘肃 兰州 730060;3.中国石油华南化工销售公司,广东 广州 510630
- Author(s):
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XU Hui-fang1; MU Xue-mei1; WEI Fu-qing1; DI Lin-ting1; LUO Xiao-cheng2; ZHANG Hai-yi2; WANG Duo-peng3
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1.Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina, Lanzhou 730060,China;2.Lanzhou Petrochemical Company, PetroChina, Lanzhou 730060, China;3.SouthChina Chemicals Marketing Company,PetroChina, Guangzhou 510630,China
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- 关键词:
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低密度聚乙烯(LDPE); 树脂; 流变性能; 结构性能; 储能模量; 损耗模量; 相对分子质量
- Keywords:
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low density polyethylene(LDPE); resin; rheological properties; structure performance; storage modulus; loss modulus; relative molecular mass
- 分类号:
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TQ 325.12
- DOI:
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DOI:10.19909/j.cnki.ISSN1009-0045.2022.06.0383
- 文献标识码:
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B
- 摘要:
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采用旋转流变仪、毛细管流变仪、凝胶渗透色谱(GPC)仪及稳态流变下的模型拟合试验,测试分析、比较了3种牌号低密度聚乙烯(LDPE)树脂的流变性能和结构性能。结果表明:LDPE-1,LDPE-2和LDPE-3 这3种LDPE树脂的动态流变曲线形状极其相似,其储能模量、损耗模量均随扫描角频率的增加而增大;其在不同剪切速率下的毛细管试验流变行为相似,但相对分子质量最小的LDPE-3树脂加工性能最好,而相对分子质量最大的LDPE-1对剪切敏感;这3种LDPE树脂的动态流变扫描、毛细管流变试验,以及在稳态流变下使用Cross拟合模型拟合试验结果所推断得出的其相对分子质量及其分布排序,与其结构性能的GPC测试结果均呈良好的相关性。
- Abstract:
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The rheological and structural properties of3 grades of low density polyethylene(LDPE) resins were tested, analyzed and compared by means of rotary rheometer, capillary rheometer, gel permeation chromatography(GPC) and steady-state rheological model fitting test. The results showed that:the dynamic rheological curves of LDPE-1, LDPE-2 and LDPE-3 were very similar, and their storage modulus and loss modulus increased with the increase of scanning angular frequency. The capillary rheological behaviors of such 3 LDPE resins under the different shear rates were similar, but the processability of LDPE-3 resin with the smallest relative molecular mass was better, while LDPE-1 with the largest relative molecular mass was sensitive to shear. The dynamic rheological scanning and capillary rheological tests of such 3 LDPE resins, as well as the conclusion that the relative molecular mass ranking and the distribution width of such 3 LDPE resins were deduced by fitting the test results using the Cross model under the steady rheological state, which had good correlation with that of the GPC test results.
参考文献/References
[1] 张顺强,剡军.微晶PE保护膜2420 H质量改进及应用[J].现代塑料加工应用,2020,32(1):31-34.[2] 赵东波,雷军霞,孙建敏.低晶点薄膜专用低密度聚乙烯树脂[J].石化技术与应用,2020,38(4):263-266.[3] 赵东波.熊华伟.优化工艺提高低密度聚乙烯装置产量[J].合成树脂及塑料,2011,28(3):34-38.[4] 周兵.高透明膜用低密度聚乙烯2436 H的开发[J].合成树脂及塑料,2010,27(5):21-23.[5] 朱瑞璋,杨云芹,李心怡.高压聚乙烯薄膜的成型加工与物理性能[J].塑料工业,2016,44(3):72-74.[6] 宋美丽,谷宇,田广华, 等.孙亚楠聚乙烯薄膜的性能及应用综述[J] .合成材料老化与应用,2018,47(3):115-118.[7] 许惠芳,魏福庆,巨娟侠,等.低密度聚乙烯 2420 H吹膜工艺研究[J] .石化技术与应用,2021,39(1):22-24.[8] 陈红. 抗静电抗粘连爽滑线性低密度聚乙烯组合物及其制备方法:中国,200610097861.1[P].2007-08-08.[9] 高凌雁,王群涛,郭锐,等.聚乙烯的动态流变行为分析[J].合成树脂及塑料,2018,35(4):75-78.[10] 许惠芳,王洪山,魏福庆,等.高爽滑线性低密度聚乙烯包装膜用树脂的流变性能[J].石化技术与应用,2010,28(6):495-497.[11] 梁基照. 应用熔体指数仪研究HDPE的流变特性Ⅲ、熔体的零切黏度和分子量[J].塑料科技,1994(4):40-42.[12] 何曼君,陈维孝,董西侠.高分子物理[M]. 上海:复旦大学出版社,1990:462.
备注/Memo
- 备注/Memo:
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中国石油炼油与化工分公司基金资助项目(项目编号:19-LH-28-01/02/05)
更新日期/Last Update:
2022-11-10