水性聚氨酯,通称聚氨酯水分散体(PUD)于上世纪40年代问世,50年代得到进一步发展,60年代首次出现于美国市场,而70年代成为重要工业品。80年代后,尤其是进入90年代,德、美、日等国纷纷将PUD研究成果转化为生产力,应用领域也不断扩展。随着现代工业的不断发展和人民生活水平的日益 Waterborne polyurethane, commonly known as PUD, was introduced in the 1940s and further developed in the 1950s. It first appeared in the United States in the 1960s and became an important industrial product in the 1970s. After the 1980s, especially into the 90s, Germany, the United States, Japan and other countries have PUD research results into productivity, applications are also expanding. With the continuous development of modern industry and people’s living standards increasingly