自制了多单体接枝物PP g (St co MMA) ,并利用其增容PP/PVC共混体系。讨论了共混物组成、相容剂用量在不同温度、不同压力下对其流变行为的影响。实验结果表明 ,在所研究的温度和压力范围内 ,加入PP g (St co MMA)增容PP/PVC共混体系后 ...自制了多单体接枝物PP g (St co MMA) ,并利用其增容PP/PVC共混体系。讨论了共混物组成、相容剂用量在不同温度、不同压力下对其流变行为的影响。实验结果表明 ,在所研究的温度和压力范围内 ,加入PP g (St co MMA)增容PP/PVC共混体系后 ,共混物熔体呈典型的假塑性流体特性 ,粘流活化能增加 ,非牛顿性有增大的趋势。共混体系的力学性能提高 。展开更多
MgO has been prepared by precipitation of magnesium nitrate solution with ammonium hydroxide,and the dechlorination abilities of the MgO for PP/PVC have been investigated.Moreover,effects of the MgO preparation condit...MgO has been prepared by precipitation of magnesium nitrate solution with ammonium hydroxide,and the dechlorination abilities of the MgO for PP/PVC have been investigated.Moreover,effects of the MgO preparation conditions,including types of washing solutions and calcination atmosphere on dechlorination behaviors of PP/PVC have been discussed.Results prove that the obtained MgO(washing solution: ethanol;calcinations atmosphere: nitrogen) possesses much higher dechlorination ability than that of commercial grade MgO,which exhibits dechlorination degree of PP/PVC as high as 95.71wt.%.展开更多
文摘自制了多单体接枝物PP g (St co MMA) ,并利用其增容PP/PVC共混体系。讨论了共混物组成、相容剂用量在不同温度、不同压力下对其流变行为的影响。实验结果表明 ,在所研究的温度和压力范围内 ,加入PP g (St co MMA)增容PP/PVC共混体系后 ,共混物熔体呈典型的假塑性流体特性 ,粘流活化能增加 ,非牛顿性有增大的趋势。共混体系的力学性能提高 。
文摘MgO has been prepared by precipitation of magnesium nitrate solution with ammonium hydroxide,and the dechlorination abilities of the MgO for PP/PVC have been investigated.Moreover,effects of the MgO preparation conditions,including types of washing solutions and calcination atmosphere on dechlorination behaviors of PP/PVC have been discussed.Results prove that the obtained MgO(washing solution: ethanol;calcinations atmosphere: nitrogen) possesses much higher dechlorination ability than that of commercial grade MgO,which exhibits dechlorination degree of PP/PVC as high as 95.71wt.%.
