Synergism of pentaerythritol-zinc with β-diketone and calcium stearate in poly(vinyl chloride) thermal stability

被引：0

作者：

Degang Li

Min Zhou

Linghua Xie

Xianjin Yu

Yuanzhang Yu

Hongqi Ai

Shouyu Tang

机构：

[1] School of Chemical Engineering,

[2] Shandong University of Technology,undefined

[3] School of Chemistry and Chemical Engineering,undefined

[4] University of Jinan,undefined

[5] Shandong Huike Additives Co.,undefined

[6] Ltd.,undefined

来源：

Polymer Journal | 2013年 / 45卷

关键词：

PVC; pentaerythritol-zinc; β-diketone; synergism; quantum chemical calculations; thermal stability mechanism;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Pentaerythritol-zinc (called Penzinc), which is a novel thermal stabilizer for PVC, was synthesized, and its performance was characterized during the thermal processing of PVC. The stabilization effects of this new stabilizer combined with calcium stearate (CaSt2) and stearoyl benzoyl methane (β-diketone) were investigated using conductivity tests, thermal aging tests, and torque rheometry tests. The results revealed that the addition of Penzinc can improve the color and thermal stability of PVC in both static and dynamic tests. There are no obvious synergistic effects between Penzinc and CaSt2. However, the synergistic action between Penzinc and β-diketone is excellent. The thermal stability mechanisms of Penzinc and β-diketone are also discussed with the help of quantum chemical calculations.

引用

页码：775 / 782

页数：7

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