Study on Influence of Impregnation Process on Thermal Aging Properties of Polyester Reinforced Self-adhesive Modified Bitumen Waterproofing Membrane
The effects of impregnation process parameters and formula on thermal aging properties(low temperature flexibility,peeling strength)of polyester reinforced self-adhesive polymer modified bitumen waterproofing membrane are discussed in this article.The diffusion and fusion processes of bitumen in the impregnating and coating materials are analyzed tentatively.The experimental results show that the thermal aging properties of polyester reinforced membrane are greatly affected by the consuming amount of impregnation,and are less affected by the formula.The higher the impregnating content of polyester mat,the greater the peeling strength and the worse the low temperature flexibility of polyester reinforced membrane after thermal aging.
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