| 摘要 |
<p>A process for preparing alkali silicate-polyisocyanate composites without catalyst separation. The process involves blending a catalyst and a polyisocyanate to form a first component, and bending an alkali silicate and water to form a second component. The first and second components are then mixed together to form a reactive mixture that reacts to form a hardened composite. The progression of the reaction proceeds without excessive foaming, high exotherms, or the release of an offensive odor. Sodium silicate - polyisocyanate composites prepared according to the above process, and a process for using the alkali silicate - polyisocyanate composites to consolidate and seal various types of formations in mining tunneling, and related construction projects are also disclosed.</p> |
