Preparation and crystallization of isotactic polypropylene composites filled by titanium dioxide-supported montmorillonite with a β-nucleating surface

被引：6

作者：

Dai, Xin ^{[1
]}

Wang, Zhenxi ^{[1
]}

Zhang, Xiaohang ^{[1
]}

Xu, Sheng ^{[1
]}

Zhang, Shangxi ^{[1
]}

Cao, Meng ^{[1
]}

Jiang, Xinde ^{[1
]}

机构：

[1] Nanchang Inst Technol, Coll Sci, Nanchang 330099, Jiangxi, Peoples R China

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2018年 / 132卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Polypropylene; beta-nucleation; Montmorillonite; Titanium dioxide; NANOCOMPOSITES; BEHAVIOR; AGENTS;

D O I：

10.1007/s10973-018-7025-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

To obtain multi-functional beta-iPP composites, beta-iPP composites are always filled by multiple fillers with alpha-nucleating ability. To prepare beta-iPP/TiO2/MMT composites, TiO2-supported MMT with a beta-nucleating surface was prepared through hydrolysis reaction of Tetra-n-butyl titanate and chemical reaction between pimelic acid and calcium ion. X-ray diffraction and scanning electron micrograph confirmed the formation of TiO2 on the surface of MMT. The differential scanning calorimeter and X-ray diffraction illustrated that the beta-iPP composites filled by TiO2 and MMT had lower relative beta-phase contents than beta-iPP. It is observed by polarized optical microscope that addition of TiO2-supported MMT with a beta-nucleating surface into iPP can increase the spherulite nuclei density and decrease the spherulite size significantly and obtain the beta-iPP/TiO2/MMT composites with high relative beta-phase content.

引用

页码：947 / 953

页数：7

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