| 硬脂酸钙-硬脂酸锌复合物的形成及对聚氯乙烯的稳定化作用 |
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| 引用本文： | 许家友,郭少云,吴炜来. 硬脂酸钙-硬脂酸锌复合物的形成及对聚氯乙烯的稳定化作用[J]. 高分子材料科学与工程, 2005, 21(2): 241-244 |
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| 作者姓名： | 许家友 郭少云 吴炜来 |
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| 作者单位： | 高分子材料工程国家重点实验室,四川大学高分子研究所,四川,成都,610065;高分子材料工程国家重点实验室,四川大学高分子研究所,四川,成都,610065;高分子材料工程国家重点实验室,四川大学高分子研究所,四川,成都,610065 |
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| 基金项目： | 国家重点基础研究发展规划项目(G1999064800)，国家863计划资助课题(2003AA333010) |
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| 摘 要： | 通过红外光谱、广角X射线衍射和DSC等研究了硬脂酸钙-硬脂酸锌的结构,结果显示,硬脂酸钙与硬脂酸锌熔融共混时,其红外光谱上的特征峰、晶体结构和熔点均发生了明显的变化,表明硬脂酸钙与硬脂酸锌形成了复合物,并提出了可能的复合物结构.动态热稳定实验结果表明,硬脂酸钙-硬脂酸锌复合物对聚氯乙烯的稳定化具有明显的协同作用,聚氯乙烯热稳定时间得到明显提高.通过红外光谱表征了聚氯乙烯/硬脂酸钙-硬脂酸锌复合物体系在热降解过程中复合物结构的变化,探讨了复合物对聚氯乙烯稳定化的机理.
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| 关 键 词： | 聚氯乙烯 硬脂酸钙 硬脂酸锌 降解 热稳定剂 |
| 文章编号： | 1000-7555(2005)02-0241-04 |
| 修稿时间： | 2004-02-05 |
STUDY ON THE FORMATION OF COMPLEX OF CaSt2-ZnSt2 AND ITS EFFECT ON THE THERMAL STABILITY OF PVC |
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| XU Jia-you,GUO Shao-yun,WU Wei-lai. STUDY ON THE FORMATION OF COMPLEX OF CaSt2-ZnSt2 AND ITS EFFECT ON THE THERMAL STABILITY OF PVC[J]. Polymer Materials Science & Engineering, 2005, 21(2): 241-244 |
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| Authors: | XU Jia-you GUO Shao-yun WU Wei-lai |
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| Affiliation: | XU Jia-you,GUO Shao-yun,WU Wei-lai Research Institute of Sichuan University,Chengdu 610065,China) |
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| Abstract: | The structure of CaSt_2-ZnSt_2 was studied by FT-IR, X-ray and DSC. The experimental results show that CaSt_2 and ZnSt_2 formed complex during melt blending, which can be proved by the remarkable changes of characteristic peaks on FT-IR, crystal structures and melting points of CaSt_2 and ZnSt_2. The possible structure of complex is proposed according to the development of structure. The dynamic thermal stability test indicates that CaSt_2-ZnSt_2 has synergism on the thermal stability of PVC and prolong the thermal stability time for PVC. The mechanism of CaSt_2-ZnSt_2 complex stabilizing PVC based on the changes of structure of CaSt_2-ZnSt_2 complex on FT-IR during melt blendy of PVC with CaSt_2-ZnSt_2 complex was also investigated in this paper. |
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| Keywords: | PVC CaSt_2 ZnSt_2 degradation thermalstabilizer |
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