Study of maleic anhydride and styrene grafted onto polypropylene induced by UV irradiation

LI Zhenzhong; HE Wei; MA Yalin; GUO Hongjun; ZHANG Wenxiong

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Study of maleic anhydride and styrene grafted onto polypropylene induced by UV irradiation

更新时间：2023-03-30

- Study of maleic anhydride and styrene grafted onto polypropylene induced by UV irradiation
- Journal of Radiation Research and Radiation Processing Vol. 25, Issue 6, Pages: 336-340(2007)
- 作者机构：
  
  1.北京工业大学材料科学与工程学院　北京　100022
  2.中北大学分校高分子材料研究所　太原　030008
  3.中北大学高分子与生物工程研究所　太原　030051
- 作者简介：
- 基金信息：
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LI Zhenzhong, HE Wei, MA Yalin, et al. Study of maleic anhydride and styrene grafted onto polypropylene induced by UV irradiation. [J]. Journal of Radiation Research and Radiation Processing 25(6):336-340(2007)
DOI：

LI Zhenzhong, HE Wei, MA Yalin, et al. Study of maleic anhydride and styrene grafted onto polypropylene induced by UV irradiation. [J]. Journal of Radiation Research and Radiation Processing 25(6):336-340(2007) DOI：

摘要

将紫外辐射技术应用到本体接枝改性，成功制备了聚丙烯的马来酸酐-苯乙烯接枝物(PP-g-(MAH-,co,- St))，并用红外光谱对接枝物进行了表征。研究了紫外光辐照时间、单体及引发剂(BP)浓度等因素对接枝率及熔体流动速率的影响。结果显示，辐照时间为30 s时，接枝效果最佳。接枝率及熔体流动速率随BP含量的增加呈现先增加后降低的趋势，分别在BP用量为0.6 g/100 g PP及0.4 g/100 g PP时达到最佳值。MAH及St浓度对接枝率及熔体流动速率的影响与BP浓度的影响相似，其最佳用量为4 g/100 g PP。St的存在对接枝反应有明显的改善作用。接枝物的热性能分析显示，接枝PP的结晶及熔融温度都有所变化，说明接枝反应对PP的晶体形貌及尺寸有显著影响。

Abstract

Maleic anhydride (MAH) and styrene (St) grafted onto polypropylene (PP) were prepared by UV irradiation. Effects of the irradiation time, monomer and initiator content on the grafting rate and melt flow rate (MFR) were studied. The results show that the optimal duration of UV irradiation is 30s. The grafting rate increases with initiator content when initiator content less than 0.6 phr, the MFR value of grafted PP reaches the highest point when benzophenone (BP) content is 0.4 phr. The content of MAH and St have an effect on the grafting rate and MFR value of the grafted PP, and the optimal contents of monomer is 4 phr. The existence of St as a co-monomer reduces apparently the MFR value of grafted PP greatly. Grafted PP present significant changes in crystallization and fusion peaks, indicating differences in crystal size and formation after grafting reaction.

关键词

马来酸酐苯乙烯紫外辐射接枝聚丙烯

Keywords

Maleic anhydrideStyreneUV irradiationGraftingPolypropylene

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