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首页> 外文期刊>American journal of applied sciences >Improvement of the Thermal, Photo and Mechanical Properties of Poly (Vinyl Chloride) in Presence of Poly (Glycidyl Methacrylate)
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Improvement of the Thermal, Photo and Mechanical Properties of Poly (Vinyl Chloride) in Presence of Poly (Glycidyl Methacrylate)

机译：在聚甲基丙烯酸缩水甘油酯存在下改善聚氯乙烯的热，光和机械性能

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摘要

Problem statement: Poly (vinyl chloride) suffers from poor heat stability. The thermal degradation of the polymer leads to the evolution of hydrogen chloride gas, extensive discoloration of the polymer and lowering of physical and mechanical properties. Approach: Binary blends of Poly (Vinyl Chloride) (PVC) and Poly (Glycidyl Methacrylate) (PGMA) have been prepared by solution blending aimed at the improvement of thermal and mechanical properties. Results and Conclusion: Thermal properties of the blends were studied using Scanning Calorimetry (DSC), Thermogravimetry (TGA) and potentiometric rate of dehydrochlorination. The increase of the PGMA content in the blend leads to thermal stability of the blend as shown from the thermogravimetry and the rate of dehydrochlorination results. All blends exhibited one major glass transition temperature (Tg) whose position on the temperature scale was lowered with increased level of PGMA. The miscibility of blends was also confirmed by the use of Scanning Electron Microscope (SEM). The improvement of the mechanical properties of various blends of the two polymers was also obtained.
机译：问题陈述：聚氯乙烯的热稳定性差。聚合物的热降解导致氯化氢气体的释放，聚合物的大量变色以及物理和机械性能的降低。方法：通过溶液共混制备了聚氯乙烯（PVC）和聚甲基丙烯酸缩水甘油酯（PGMA）的二元共混物，旨在改善热性能和机械性能。结果与结论：采用扫描量热法（DSC），热重法（TGA）和脱氯化氢电位法研究了共混物的热性能。混合物中PGMA含量的增加导致混合物的热稳定性，如从热重法和脱氯化氢速率所显示的那样。所有共混物均表现出一种主要的玻璃化转变温度（Tg），随着PGMA含量的增加，其在温度标度上的位置降低。共混物的混溶性也通过使用扫描电子显微镜（SEM）来确认。还获得了两种聚合物的各种共混物的机械性能的改善。

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