苯乙烯接枝改性聚丙烯制备及其性能

王卫霞; 周帅; 石尧麒; 辛忠

doi:10.3969/j.issn.0438-1157.2013.z1.027

您当前的位置：

首页 >

文章列表页 >

苯乙烯接枝改性聚丙烯制备及其性能

材料化学工程与纳米技术 | 更新时间：2025-12-10

- 苯乙烯接枝改性聚丙烯制备及其性能
- Preparation and properties of polypropylene modified by grafting styrene
- 化工学报 2013年第S1期页码：175-181
- 作者机构：
  
  华东理工大学化工学院产品工程系, 化学工程联合国家重点实验室,上海,200237
- 作者简介：
  
  王卫霞(1987—)，女，博士研究生.
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.z1.027
  中图分类号： Q316.6
- 网络首发：2013-12-30，
  
  纸质出版：2013-12-30
- 稿件说明：
移动端阅览
王卫霞, 周帅, 石尧麒, 等. 苯乙烯接枝改性聚丙烯制备及其性能[J]. 化工学报, 2013,(S1):175-181.

WANG Weixia, ZHOU Shuai, SHI Yaoqi, et al. Preparation and properties of polypropylene modified by grafting styrene[J]. CIESC Journal, 2013, (S1): 175-181.
王卫霞, 周帅, 石尧麒, 等. 苯乙烯接枝改性聚丙烯制备及其性能[J]. 化工学报, 2013,(S1):175-181. DOI： 10.3969/j.issn.0438-1157.2013.z1.027.

WANG Weixia, ZHOU Shuai, SHI Yaoqi, et al. Preparation and properties of polypropylene modified by grafting styrene[J]. CIESC Journal, 2013, (S1): 175-181. DOI： 10.3969/j.issn.0438-1157.2013.z1.027.

摘要

以过氧化苯甲酰为引发剂，采用反应挤出法将苯乙烯(St)接枝到等规聚丙烯(iPP)上，并考察了St浓度对接枝PP结晶性能、流变性能和发泡性能的影响。由FTIR、GPC和MFR表征结果表明St成功接到PP上；DSC结果表明，接枝PP结晶峰值温度与iPP相比最大提高了15.4℃；由剪切流变测试结果，在低频区，接枝PP的G'值增大，出现明显的剪切变稀现象，tan δ-ω曲线中出现平台，说明接枝PP中有长支链结构的存在；由于接枝PP的熔融流动速率降低即熔体强度提高，使得接枝PP的泡孔更规则。

Abstract

With benzoyl peroxide as initiator

melt isotatic polypropylen (iPP) was grafted with styrene (St) by reactive extrusion process. The effects of St concentration on oscillatory shear rheology

foaming and thermal properties were comparatively evaluated. That Sts were grafted onto PP was comfirmed by FTIR

GPC and MFR. The results of DSC showed that the crystallization temperatures of grafted PPs were higher than that of iPP (maximum 15.4℃). The rheological characteristics of grafted PPs such as higher storage modulus (G')

the obvious shear thinning

a plateat in tan δ-ω plot at low frequency proved that the long chain branches have been added to the PP molecules. As the melt flow rate of grafted PP was reduced

i.e. the melt strength increased

the bubble pore of grafted PP was more regular than that of iPP.

关键词

Keywords

references

浏览量

881

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

碱金属改性对SrMnO3催化乙苯化学链氧化脱氢性能的影响规律研究

聚离子液体载MoO2/Ag催化分子氧氧化苯乙烯的研究

正反向同时引发ATRP制备凹凸棒土/聚苯乙烯杂化粒子

聚乙二醇存在下苯乙烯/甲基丙烯酸甲酯无皂乳液聚合体系的动态表面张力

基于时序-空间双流卷积神经网络的炼化污水厂进水COD预测模型