摘 要:本文以沥青和废橡胶粉为主要原料,乙酸乙酯为溶剂,紫外线吸收剂UV326和UV770为辅料,通过改变各组分的配比得到综合性能良好的沥青防水涂料。该配方改善了传统沥青涂料延伸性不高、粘结性差、温度敏感性低和抗老化能力差等缺陷。当沥青与废橡胶粉的质量比为10.0:1.6时,改性沥青涂料的抗拉强度、断裂伸长率、耐热度和不透水性等性能最佳。36141 毕业论文关键词:改性沥青;废橡胶粉;UV326;UV770;防水涂料
Modification of Asphalt Waterproof Coating
Abstract:In the paper,asphalt and waste rubber powder were used as main raw materials,ethyl acetate as solvent,ultraviolet absorbent UV326 and UV770 as accessories,The ratio of components was changed to obtain good comprehensive property of asphalt waterproof coating.The shortcomings such as low extensibility,poor cohesiveness,low temperature sensitivity and poor anti-aging ability of additional asphalt coating were improved by this formula.When the quality ratio of asphalt and waste rubber powder is 1:0.6,tensile strength,elongation at break.heat resistance and waterproof performance of modified asphalt coating were best.
Key words:Modified asphalt;Waste rubber powder;UV326;UV770;Waterproof coating
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