Process for preparing water-proof glass fiber punched felt
The invention provides a process for preparing a water-proof glass fiber punched felt. The process comprises the steps that 1, a water repellent agent while being stirred is added into water to be diluted, then a coupling reagent is added and stirred evenly, wherein the ratio of the water repellent...
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Format: | Patent |
Sprache: | chi ; eng |
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