Research on Oil Impermeability of Acrylic Waterproofing Coating for Roof Renovation
A type of oil impermeability acrylic waterproofing coating is prepared,which can be directly applied on old bitumen waterproofing membrane.The effects of coating thickness,ambient temperature and emulsion type on oil impermeability of the acrylic waterproofing coating are studied.The results show that the tensile strength of acrylic waterproofing coating prepared by self-made acrylic emulsion can reach 3.4 MPa,and the elongation at break can reach 555％;when the coating thickness is more than 1.50 mm,it can effectively block the migration of oil with small molecule in the bitumen waterproofing membrane to the coating surface and make it yellow under natural environment temperature(below 50 ℃),and the self-made acrylic emulsion can further improve oil impermeability of the coating by adding silane crosslinking agent.
万方数据
维普
