| 乙烯-丙烯-1-丁烯三元共聚合 |
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| 引用本文： | 张瑞,王路海,李波,刘盘阁,闫卫东. 乙烯-丙烯-1-丁烯三元共聚合[J]. 合成树脂及塑料, 2008, 25(3): 11-14 |
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| 作者姓名： | 张瑞 王路海 李波 刘盘阁 闫卫东 |
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| 作者单位： | 河北工业大学高分子科学与工程研究所,天津,300130;中国石油石化研究总院大庆化工研究中心,黑龙江,大庆,163714;河北工业大学高分子科学与工程研究所,天津,300130 |
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| 基金项目： | 中国石油天然气股份有限公司资助项目 |
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| 摘 要： | 采用自制的ziegler-Natta催化剂催化乙烯-丙烯-1-丁烯三元共聚合.考察了1-丁烯/丙烯、铝钛比、反应温度和压力等对三元共聚合的影响.结果表明.三元共聚物中支化度约为26门000 C,其中乙基支链为18/1 000 C、丙基支链为8/1 000 C.在聚合温度为60℃、压力为0.8 MPa、乙烯分压百分数为70%、1-丁烯分压百分数为5.7%和丙烯分压百分数为24.3%时,催化活性最高,为10.5 kg/g.当n(Al)/n(Ti)大于100时,催化活性增加趋势变缓.聚合压力超过0.8 MPa时,催化活性变化不大.聚合平行实验结果表明,上述条件稳定,所得三元共聚物的表观密度为0.32g/cm3,拉伸强度为11～12 MPa、断裂伸长率为540%～560%.
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| 关 键 词： | 线型低密度聚乙烯 三元共聚合 齐格勒-纳塔催化剂 表征 性能 |
Ternary polymerization of ethylene-propylene-butene-1 |
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| Zhang Rui,Wang Luhai,Li Bo,Liu Pange,Yan Weidong. Ternary polymerization of ethylene-propylene-butene-1[J]. China Synthetic Resin and Plastics, 2008, 25(3): 11-14 |
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| Authors: | Zhang Rui Wang Luhai Li Bo Liu Pange Yan Weidong |
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| Affiliation: | Zhong Rui~(1,2) Wang Luhai~(1,2) Li Bo~1 Liu Ponge~1 Yan Weidong~1 (1. Institute of Polymer Science , Engineering,Hebei University of Technology,Tianjin 300130,China,2. Daqing Chemical Engineering Research Center,the Institute of Petrochemical Engineering,PetroChina,Daqing 163714,China) |
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| Abstract: | The authors synthesized a terpolymer of ethylene,propylene and butene-1 via ternary polymerization in the presence of the home-made Ziegler-Natta catalyst. The influences of butene-1/propylene ratio,n(Al)/n(Ti) ratio,reaction temperature and pressure on ternary polymerization were examined. The results show that the branching degree in the terpolymer is 26/1,000 C,wherein ethyl group is 18/1,000 C,propyl group is 8/1,000 C. The catalytic activity can reach its maximum,10.5 kg/g,under the conditions of polym... |
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| Keywords: | ternary polymerization Ziegler-Natta catalyst linear low density polyethylene characterization property |
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