双单体固相接枝聚丙烯的制备与应用

doi:10.19491/j.issn.1001-9278.2019.06.006

中国塑料 ›› 2019, Vol. 33 ›› Issue (6): 31-37.DOI: 10.19491/j.issn.1001-9278.2019.06.006

双单体固相接枝聚丙烯的制备与应用

肖潇^1,2,郑玉婴^1,^3*,卢鑫⁴,赵波²,张欣涛²

1. 福州大学材料科学与工程学院
2. 福建省产品质量检验研究院
3. 福建宸琦新材料科技有限公司
4. 福建省橡塑新材料重点实验室

收稿日期:2019-01-23 修回日期:2019-05-28 出版日期:2019-06-26 发布日期:2019-07-26

Preparation and Application of Daul Monomers Solid Phase Grafted Polypropylene

Received:2019-01-23 Revised:2019-05-28 Online:2019-06-26 Published:2019-07-26

摘要/Abstract

摘要： 以马来酸酐（MAH）/苯乙烯（St）双单体固相接枝聚丙烯（PP）制备了PP-g-MAH/St接枝物，采用正交试验确定最佳工艺条件，并通过傅里叶变换红外光谱仪、核磁共振谱仪、差式扫描量热仪和X射线衍射仪对接枝物的结构和性能进行了表征和分析。结果表明，最佳接枝工艺条件为：反应温度120 ℃，反应时间1 h，nSt/nMAH=1.2∶1（摩尔比），mMAH/mPP=0.14，mBPO/mPP=0.02（质量比）；接枝前后PP的晶型保持不变，均为α晶，但是PP结晶度降低，结晶温度则有所提高；作为相容剂，PP-g-MAH/St可显著提高PP复合材料的冲击强度。

Abstract: PP-g-malic anhydride (MAH)/styrene (St) was prepared by a twin-monomer solid phase grafting method. The optimum condition was determined by orthogonal experiments with a reaction temperature of 120 ℃, a reaction time of 1 h, a St/MAH molar ratio of 1.2∶1, a MAH/PP mass ratio of 0.14/1, and a BPO/PP mass ratio of 0.02/1. The characterization results of FTIR and NMR spectroscopy indicated that MAH and styrene were successfully grafted into PP by free radical copolymerization. DSC and XRD investigations indicated that PP presented α-form crystals without any changes before and after grafting. However, the crystallinity degree of PP decreased, and its crystallization temperature increased. As a compatibilizer, the incorporation of PP-g-MAH/St enhanced the impact strength of PP compounds.

肖潇郑玉婴卢鑫赵波张欣涛. 双单体固相接枝聚丙烯的制备与应用[J]. 中国塑料, 2019, 33(6): 31-37.

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双单体固相接枝聚丙烯的制备与应用

Preparation and Application of Daul Monomers Solid Phase Grafted Polypropylene

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