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

被引：4
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
收藏
页码：379 / 385
页数：7
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