关于PVC-U型材共混料灰分测定的研究

本文通过对PVC-U型材共混料中的主要原材料和PVC与CaCO_3混合物的灰分测定方法和结果进行了研究,并利用具有代表性配方的共混料进行了验证,阐述了目前行业标准草案所拟定的灰分分级与检测方法存在的问题,为编制更具有操作性和指导意义的共混料行业标准提供建议。

In this paper, the methods and results of the ash determination in main raw material blend for PVC-U profile and PVC-CaCO3 blend have been studied and validated by representative blend recipe. We explain the problem in the ash classification and test in the current industry standard draft and provide suggestions for a more feasible and instructive PVC-U profile blend industry standard.