Polycarbonate type polyurethane primer and preparation method thereof
The invention discloses a polycarbonate type polyurethane primer. The polycarbonate type polyurethane primer comprises an A component and a B component. The A component comprises 50-70 parts by weight of polyurethane produced by reacting polycarbonate polyol with isocyanate, 20-40 parts by weight of...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a polycarbonate type polyurethane primer. The polycarbonate type polyurethane primer comprises an A component and a B component. The A component comprises 50-70 parts by weight of polyurethane produced by reacting polycarbonate polyol with isocyanate, 20-40 parts by weight of a solvent, and 0.01-0.1 part by weight of a catalyst. The B component comprises 20-45 parts by weight of a curing agent produced by reacting polyether polyol with isocyanate, 30-50 parts by weight of a solvent, 5-45 parts by weight of a plasticizer, 0.1-1.0 part by weight of a catalyst, and 0.1-5 parts by weight of other micromolecule auxiliaries. The polycarbonate type polyurethane primer is a waterproof primer used for cement concrete base materials, has advantages of water-proofness, low viscosity, good wettability for water-mixed base materials, environmental protection, high adhesive strength, and the like, and is widely used for adhesion where cement or concrete is adopted as a base material. |
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