| 无规共聚聚丙烯反应挤出接枝马来酸酐研究 |
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| 引用本文： | 王丽姝,王益龙,陈振宇.无规共聚聚丙烯反应挤出接枝马来酸酐研究[J].现代塑料加工应用,2007,19(2):15-18. |
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| 作者姓名： | 王丽姝 王益龙 陈振宇 |
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| 作者单位： | 大连理工大学化工学院高分子材料系,辽宁,大连,116012 |
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| 摘 要： | 使用高长径比的接枝型反应挤出机,研究了在反应挤出过程中马来酸酐接枝无规共聚聚丙烯(PPR)(PPR-g- MAH)的熔融反应规律。研究反应单体马来酸酐(MAH)用量和过氧化二异丙苯(DCP)用量对产物PPR-g-MAH接枝率及熔体流动速率的影响。结果表明,最佳配方为MAH质量分数为2.0％,DCP质量分数为0.15％,此时产物的接枝率为0.55％,熔体流动速率为4.8g／10min。通过红外光谱、差示扫描量热仪(DSC)、广角X射线衍射仪(WAXD)分析表明,接枝物有明显的酐基吸收峰,表明PPR分子链确实接枝上强极性的酐基;接枝物的熔点与原料相同;晶型和结晶度基本没有发生改变。
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| 关 键 词： | 无规共聚聚丙烯 反应挤出 接枝 马来酸酐 |
| 修稿时间： | 2006-09-06 |
Study on PPR Grafted with Maleic Anhydride by Reactive Extrusion |
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| Wang Lishu,Wang Yilong,Chen Zhenyu.Study on PPR Grafted with Maleic Anhydride by Reactive Extrusion[J].Modern Plastics Processing and Applications,2007,19(2):15-18. |
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| Authors: | Wang Lishu Wang Yilong Chen Zhenyu |
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| Affiliation: | Dept. of Polymer Materials, Dalian University of Technology, Dalian, Liaoning, 116012 |
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| Abstract: | The reaction rule of PPR melt grafted with maleic anhydride(MA)during re- active extrusion was studied in a high L/D reactive extruder.The effects of maleic anhydride and dicumyl peroxide(DCP)content on grafting degree and melt flow rate of the product were studied.The results show that the optimal condition is 2.0% MA and 0.15% DCP, Grafting degree of the best product is 0.55% and melt flow rate is 4.8g/10 min.FT-IR, DSC and WAXD curves of PPR-g-MA show that the grafted product has an evident an- hydride peak, which indicates the anhydride is grafted onto PPR molecule chain.Melting point is similar to raw materials.The crystal phase and crystallinity remain unchanged. |
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| Keywords: | random copolypropylene reactive extrusion graft maleic anhydride |
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