Crystallization of post-consumer polypropylene in the presence of β-nucleating agent

被引：5

作者：

Ding, Qian ^{[1
]}

Fu, Hao ^{[1
]}

Hua, Chaoran ^{[1
]}

Ke, Shenghai ^{[1
]}

Yao, Jin ^{[1
]}

Zhu, Heping ^{[1
]}

机构：

[1] Hunan Univ Technol, Sch Packaging Design & Art, China Packing Design & Innovat Ctr, Zhuzhou 412007, Peoples R China

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2019年 / 138卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Post-consumer waste; Polypropylene; Crystallization; beta-nucleation; SUPERMOLECULAR STRUCTURE; ISOTACTIC POLYPROPYLENE; RECYCLED POLYPROPYLENE; WASTE; DEGRADATION; CONVERSION; BEHAVIOR; STATE;

D O I：

10.1007/s10973-019-08248-y

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In order to investigate the crystallization behavior of post-consumer waste polypropylene (PCW-PP) in the presence of an aryl amide derivative beta-nucleating agent (TMB-5), differential scanning calorimetry (DSC), wide-angle X-ray diffraction and polarized-light optical microscopy were used. The content of calcium carbonate (CaCO3) in four kinds of PCW-PP, as well as the relative beta-content of PCW-PP nucleated by 0.3 mass% TMB-5, is estimated by thermogravimetric analysis and DSC. The results indicate that the commercial grade TMB-5 has strong b-nucleating effect on the crystallization of PCW-PP and increases the crystallization temperature of PCW-PP in the presence of different content of CaCO3 with alpha-nucleating effect. As a result, PCW-PP with b-phase content higher than 75% is prepared through the addition of 0.3 mass% TMB-5, which has significance for high-value added recycling of PCW-PP.

引用

页码：379 / 385

页数：7

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