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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis of a new compatibilisant agent PVC-g-MA and its use in the PVC/alfa composites
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Synthesis of a new compatibilisant agent PVC-g-MA and its use in the PVC/alfa composites

机译：新型相容剂PVC-g-MA的合成及其在PVC /阿尔法复合材料中的应用

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The main objective of this research was to synthesize a new compatibilisant agent (PVC-g-MA), which was grafted from the maleic anhydride on the PVC chains. The presence of maleic anhydride grafting on PVC was made evident by infrared analysis. PVC-g-MA was used like compatibilisant to solve the problem of the incompatibility between the hydrophobic polymeric matrix (PVC) and hydrophilic fiber (alfa). Composites samples were prepared with different alfa fiber loading (10, 20, and 30 wt %) and incorporating PVC-g-MA (1, 3, and 5 wt %) or PP-g-MA (3 wt %). The tensile properties, the thermal stability and the morphology of the composites were investigated. The result indicated that the PVC-g-MA increased the interfacial adhesion between the fibers and the polymer matrix and this effect was better than that obtained for the maleated-polypropylene-coupled composites. Microstructure analysis of the fractured surfaces of MAPP modified composites confirmed improved interfacial bonding. The addition of alfa and PVC-g-MA increased the thermal stability of the composites. The temperature of degradation of the polymer matrix increased about 16°C in comparison to the noncoupled composite, indicating that PVC-g-MA improved the thermal stability of the polymer.
机译：这项研究的主要目的是合成一种新的增容剂（PVC-g-MA），该增容剂是从马来酸酐接枝到PVC链上而得到的。通过红外分析证实了在PVC上接枝马来酸酐。像相容剂一样使用PVC-g-MA解决疏水性聚合物基质（PVC）和亲水性纤维（alfa）之间不相容的问题。制备具有不同阿尔法纤维负载量（10、20和30重量％）并掺入PVC-g-MA（1、3和5重量％）或PP-g-MA（3重量％）的复合材料样品。研究了复合材料的拉伸性能，热稳定性和形貌。结果表明，PVC-g-MA增加了纤维与聚合物基体之间的界面粘合力，其效果优于马来酸化聚丙烯偶联的复合材料。 MAPP改性的复合材料的断裂表面的微观结构分析证实了改进的界面结合。阿尔法和PVC-g-MA的添加提高了复合材料的热稳定性。与未偶联的复合材料相比，聚合物基质的降解温度提高了约16°C，这表明PVC-g-MA改善了聚合物的热稳定性。

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