1日本聚氨酯防水涂料的发展1.1聚氨酯防水涂料市场近年来,日本各种防水材料及工法的应用情况见表1。2010年日本各种防水材料及工法的施工面积和其所占比列,见表2。由表1、表2可知,2010年日本防水市场规模为7 955.9万m2,其中聚氨酯防水涂料的施工面积为17 689万m2,占30.4%,跃居各种 1 Japan polyurethane waterproof coating development 1.1 polyurethane waterproof coating market In recent years, Japan, a variety of waterproof materials and methods of application are shown in Table 1. 2010 in Japan, a variety of waterproof materials and methods of construction area and the proportion of columns, see table 2. As can be seen from Table 1 and Table 2, the size of the Japanese waterproof market in 2010 was 75.95 million m2, of which the construction area of ​​polyurethane waterproof coating was 176.89 million m2, accounting for 30.4% of the total,