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Aqueous siloxane coating composition, making method, surface treating agent, surface treated steel, and coated steel

机译:水性硅氧烷涂料组合物,制备方法,表面处理剂,表面处理钢和涂层钢

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摘要

Using the partial hydrolysate of alkoxysilane and acidic hydrolysis catalysts, a silane sol-gel coating composition having a certain degree of storage stability can be prepared. This composition,however, is limited to an organic alcohol system. Using an amount of water for full hydrolysis of alkoxysilanes and high solids content can lead to a drastic reduction in the storage stability of the system. In the course of preparing a coating composition, it becomes difficult to control the hydrolytic condensation of silane, leading to molecular weight build up and gelation.
机译:使用烷氧基硅烷的部分水解产物和酸性水解催化剂,可以制备具有一定程度的储存稳定性的硅烷溶胶-凝胶涂料组合物。然而,该组成限于有机醇体系。使用一定量的水使烷氧基硅烷完全水解并且固体含量高,会导致系统的储存稳定性急剧下降。在制备涂料组合物的过程中,变得难以控制硅烷的水解缩合,导致分子量增加和凝胶化。

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