| PVC复合稀土热稳定体系加工与应用性能 |
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| 引用本文： | 张星,程雷,蔡伟龙,郑玉婴.PVC复合稀土热稳定体系加工与应用性能[J].华侨大学学报(自然科学版),2009,30(4). |
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| 作者姓名： | 张星 程雷 蔡伟龙 郑玉婴 |
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| 作者单位： | 福州大学,化学化工学院,福建,福州,350002 |
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| 基金项目： | 国家自然科学基金资助项目，福建省科技计划重大专项，福建省自然科学基金计划资助项目 |
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| 摘 要： | 研究不同稳定体系对聚氯乙烯(PVC)的加工流变行为、力学性能和维卡软化点的影响,通过对比,评价复合稀土稳定剂的综合性能结果表明,复合稀土稳定体系具有良好的综合加工性能,大大改善PVC材料的力学性能.扫描电镜及红外光谱分析证实,稀土热稳定剂具有偶联增韧作用;热分析结果表明,PVC-HREC(稀土稳定剂)体系在氮气中的热降解反应较为简单,为一步反应,通过外推得到其起始降解温度和终止降解温度分别为264.82,325.47 ℃.
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| 关 键 词： | 聚氯乙烯 热稳定剂 硬脂酸稀土 流变性能 偶联作用 |
Study on Processing and Mechanical Properties of PVC Rare-Earth Compound Stabilizer System |
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| ZHANG Xing,CHENG Lei,CAI Wei-long,ZHENG Yu-ying.Study on Processing and Mechanical Properties of PVC Rare-Earth Compound Stabilizer System[J].Journal of Huaqiao University(Natural Science),2009,30(4). |
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| Authors: | ZHANG Xing CHENG Lei CAI Wei-long ZHENG Yu-ying |
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| Institution: | College of Chemistry and Chemical Engineering;Fuzhou University;Fuzhou 350002;China |
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| Abstract: | Influence of different thermal stabilization system of polyvinylchlorid(PVC) on the processing rheological properties,mechanical properties and vicat softening temperature were studied.The result indicates that compound rare-earth stabilization system has excellent whole processing property and could improve the mechanical properties evidently.The coupling effect of rare-earth stabilizer were investigated by SEM and FT-IR analysis.In addition,the result of DSC-TGA shows the thermal degradability of PVC-HREC... |
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| Keywords: | polyvinylchlorid thermal stabilizer rare-earth stearate rheological property coupling effect |
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