It can draw the following conclusions form this experiment: 1. Calcium carbonate, kaolin clay and starch of filling have greatly influence on properties of PE film.
本论文从实验得到以下主要结论：1、碳酸钙、高岭土和淀粉填料对聚乙烯微孔薄膜性能影响很大。
2
Purple is a natural clay, rich in sodium, potassium, iron, calcium, zinc and other elements, can be alkalinized water quality, and enhance the body's immunity so good for health.
紫砂是一种天然陶土，富含钠、钾、铁、钙、锌等元素，可碱化水质，提高人体的免疫力，对健康很有好处。
3
A gray powder that is a mixture of calcium silicate and calcium aluminate made by heating limestone (calcium carbonate) and clay (containing silicon. dioxide and aluminum oxide).