Modification of Polypropylene with Composite Nucleating Agents Containing 2,2-Methylene-bis-(4,6-di-t-butylphenylene) Phosphate/Attapulgite/Silica Nano-particles

Min Guo; Jin-qing Li; Zhuang Miao; Yang Zhang; Guo-yuan Pan; Hao Yan; Yun-jun Luo; Yi-qun Liu

doi:10.11777/j.issn1000-3304.2014.13465

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Modification of Polypropylene with Composite Nucleating Agents Containing 2,2-Methylene-bis-(4,6-di-t-butylphenylene) Phosphate/Attapulgite/Silica Nano-particles

Research Article | 更新时间：2021-03-19

- Modification of Polypropylene with Composite Nucleating Agents Containing 2,2-Methylene-bis-(4,6-di-t-butylphenylene) Phosphate/Attapulgite/Silica Nano-particles
- Acta Polymerica Sinica Issue 8, Pages: 1124-1134(2014)
- 作者机构：
  
  1. 北京理工大学材料科学与工程学院,北京,100081
  2. 中国石油化工股份有限公司北京化工研究院,北京,100013
  3. 中国兵器科学研究院,北京,100089
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2014.13465
  CLC：
- Published：20 August 2014，
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Min Guo, Jin-qing Li, Zhuang Miao, Yang Zhang, Guo-yuan Pan, Hao Yan, Yun-jun Luo, Yi-qun Liu. Modification of Polypropylene with Composite Nucleating Agents Containing 2,2-Methylene-bis-(4,6-di-t-butylphenylene) Phosphate/Attapulgite/Silica Nano-particles. [J]. Acta Polymerica Sinica (8):1124-1134(2014)
DOI：

Min Guo, Jin-qing Li, Zhuang Miao, Yang Zhang, Guo-yuan Pan, Hao Yan, Yun-jun Luo, Yi-qun Liu. Modification of Polypropylene with Composite Nucleating Agents Containing 2,2-Methylene-bis-(4,6-di-t-butylphenylene) Phosphate/Attapulgite/Silica Nano-particles. [J]. Acta Polymerica Sinica (8):1124-1134(2014) DOI： 10.11777/j.issn1000-3304.2014.13465.

摘要

通过喷雾干燥技术制备了一系列无机纳米粒子（凹凸棒土和/或二氧化硅）与有机磷酸盐类成核剂（NA11）复配的复合成核剂.研究了复合成核剂对聚丙烯力学性能与结晶行为的影响.采用透射电镜（TEM）、扫描电镜（SEM）、偏光显微镜（POM）、广角X射线衍射仪（WAXD）等对复合成核剂在聚丙烯中的分散和对结晶行为的影响进行了表征和分析，并且对复合成核剂改性聚丙烯的机理进行了探讨.结果表明，这种复合成核剂对聚丙烯力学性能的改善明显，聚丙烯的刚性迅速增加，其中三元成核剂对聚丙烯刚性的提高更显著，该成核剂在0.2%用量下对聚丙烯力学性能的改善效果，相当于同等添加量下纯NA11的改性效果.微观形态研究表明三元复合成核剂体系中，三组分形成了相互隔离的分散状态，使有机成核剂和无机纳米粒子可以在聚丙烯基体中实现良好分散.

Abstract

A series of composite nucleating agents based on inorganic nano-particles (attapulgite and/or silica) and organic phosphate nucleating agent (NA11) were prepared via spray drying technique.The effects of nucleating agents on the mechanical properties and nucleation behavior of PP were studied.Transmission electron microscopy(TEM)

scanning electron microscopy(SEM)

polarizing optical microscopy(POM) and wide angle X-ray diffraction(WAXD) were employed to characterize the dispersion of composite nucleating agents and their effects on the crystallization behavior of polypropylene.The mechanism of influences of composite nucleating agents on the properties of PP was also discussed.The research results suggested that the mechanical properties of PP were improved substantially with addition of composite nucleating agents into the system.The stiffness of PP was increased significantly with increasing the loading of composite nucleating agents.The ternary composite nucleating agents showed significant effect on improving the stiffness of PP at a loading of 0.2 wt%

which was similar as using pure NA11 at such loading.The observation on microscopic morphology showed that the three components in the ternary composite nucleating agent were inter-partitioned with each other

resulting in the improved dispersion of NA11and the inorganic nano-particles in PP matrix.

关键词

聚丙烯复合成核剂NA11二氧化硅凹凸棒土力学性能结晶

Keywords

PolypropyleneComposite nucleating agentNA11SilicaAttapulgiteMechanical propertyCrystallization

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College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University

Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences

Institute of Chemistry, Chinese Academy of Sciences

Beijing Institute of Automatic Control Equipment

College of Chemistry and Materials Engineering, Beijing Technology and Business University

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