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聚合物干粉拌合到水泥砂浆中,随着基面对水分的吸收,树脂颗粒在一步步的靠近过程中,其界面越来越模糊,最终融合了所有的树脂,通过聚合方式形成了膜。这种膜属于高分子树脂薄膜,它的拉伸强度比一般的水泥基材料高出一个数量级,所以可以明显地增强砂浆的抗拉强度,提高其内聚力,而且其分散应力的作用大幅度上升,从而提高了砂浆的抗裂能力。采用聚合物干粉改性后的砂浆的抗拉强度、弹性、柔性与封闭性均有提高。聚合物砂浆中的聚合物膜还起到了另一种关键作用,即增加了对所接触材料的黏结性。
Polymer dry powder mixed into the cement mortar, with the base surface of the water absorption, the resin particles in a step by step approach, the interface more and more fuzzy, the final fusion of all the resin, the formation of the film by polymerization. This film belongs to the polymer resin film, its tensile strength than the average cement-based materials an order of magnitude, it can significantly enhance the tensile strength of mortar and improve its cohesion, and its role in dispersing stress increased significantly, Thus improving the crack resistance of mortar. The tensile strength, elasticity, flexibility and sealability of mortar modified with polymer dry powder are all improved. Polymer membranes in polymer mortar also play another key role, which increases the adhesion of the material in contact.