论文部分内容阅读
聚氨酯浆材是70年代发展起来的一种高效能灌浆材料，除具有一般浆材的优点外，更具有遇水反应，发泡膨胀的特点，广泛应用于工程中．聚氨酯浆材一般分为非水溶性聚氨酯浆材、水溶性聚氨酯浆材和弹性聚氨酯浆材．非水溶性聚氨酯浆材和弹性聚氨酯浆材虽然原料来源广泛，但前者完
Polyurethane Pulp is a high-performance grouting material developed in the 1970s. It has the advantages of water-responsiveness and foam expansion in addition to the advantages of general pulp materials. It is widely used in engineering. Polyurethane pulp is generally divided into water-insoluble polyurethane pulp, water-soluble polyurethane pulp and elastic polyurethane pulp. Water-insoluble polyurethane slurries and elastic polyurethane slurries