Flowability and anti-static properties of high impact polypropylene particles

XU Hongbin; CHEN Wei; WU Yan; MEI Li; YAO Zhen; DA Wenzhong; CAO Kun

doi:10.11949/j.issn.0438-1157.20161037

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Flowability and anti-static properties of high impact polypropylene particles

更新时间：2025-12-10

- Flowability and anti-static properties of high impact polypropylene particles
- CIESC Journal Issue 2, Pages: 767-773(2017)
- 作者机构：
  
  1. 中国石化扬子石油化工有限公司南京研究院,江苏,南京,210047
  2. 化学工程联合国家重点实验室, 浙江大学化学工程与生物工程学院,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161037
  CLC： Q033
- Online First：05 February 2017，
  
  Published：05 February 2017
- 稿件说明：
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XU Hongbin, CHEN Wei, WU Yan, et al. Flowability and anti-static properties of high impact polypropylene particles[J]. CIESC Journal, 2017, (2): 767-773.
DOI：

XU Hongbin, CHEN Wei, WU Yan, et al. Flowability and anti-static properties of high impact polypropylene particles[J]. CIESC Journal, 2017, (2): 767-773. DOI： 10.11949/j.issn.0438-1157.20161037.

摘要

随着气相釜中乙烯含量的增加，高抗冲聚丙烯颗粒会出现发黏、聚并等现象，严重影响其流动性及连续化生产。添加极少量惰性无机超细粉体是减少高抗冲聚丙烯颗粒间粘连的有效措施。通过冷模研究，剖析超细粉体的加入对颗粒流动性的影响，同时探讨体系静电的产生因素及其对颗粒流动性的影响。选用的超细粉体包括球形二氧化硅和层状水滑石。研究发现，相对于直接加入未改性处理的超细粉体，加入经抗静电剂改性的超细粉体后，颗粒的带电量明显减少，落下时间缩短，流动性也得到了有效提高；而且选用水滑石的效果明显优于二氧化硅。

Abstract

With the increase of ethylene content in gas phase fluidized bed

stickiness and agglomeration among high impact polypropylene granules seriously impacted on particle flowability and continuous production. Adding a small amount of inert inorganic superfine powders could effectively reduce the sticky agglomeration. The cold-flow model study was to analyze impact of superfine powders such as spherical silica and layered hydrotalcite (HT)

as well as to explore electrostatic formation and effect on flowability. Compared to untreated powders

powders modified by antistatic agents could decrease accumulation of static charges

shorten dropping time

and enhance flowability of particles. Overall

hydrotalcite showed better effect than silica.

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Related Author

CAO Kun

YAO Zhen

TU Yuxia

XIAO Zhixian

TU Yuxia

CAO Kun

YAO Zhen

MEI Li

Related Institution

State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University

Nanjing Research Institute of SINOPEC Yangzi Petrochemical Co. Ltd.

School of Chemistry and Chemical Engineering, Guangzhou University

Guangzhou Research Institute of Synthetic Materials

Department of Chemical Engineering, Guangdong Light Industry Technical College,, Guangdong

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