Solvent-free single-component polyurethane waterproof coating and preparation method thereof
A polyurethane waterproof, one-component technology, applied in the field of coatings, can solve problems such as poor sag resistance at high temperature, and achieve the effects of strong adhesion, improved sag resistance and bond strength, and good sag resistance.
Active Publication Date: 2022-05-06
HEBEI YUYANGZELI WATERPROOF MATERIAL
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Abstract
The invention relates to the technical field of coatings, and provides a solvent-free single-component polyurethane waterproof coating which comprises the following components in parts by weight: 20-30 parts of polyether glycol, 3-10 parts of polyether triol, 5-10 parts of liquefied MDI, 30-55 parts of talcum powder, 5-10 parts of a latent curing agent, 15-30 parts of a low-viscosity plasticizer and 3-10 parts of a rheological additive. The high-temperature-resistant water-based paint comprises the following components in parts by weight: 0.1-0.5 part of fluorine-containing polymer micro powder, 0.1-0.5 part of zirconium phosphate, 0.05-2 parts of a catalyst and 0.2-1 part According to the technical scheme, the problem of poor high-temperature sagging resistance of the polyurethane waterproof coating in the prior art is solved.
Application Domain
Fireproof paintsPolyurea/polyurethane coatings
Technology Topic
PlasticizerFirming agent +12
Examples
- Experimental program(7)
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PUM
Property | Measurement | Unit |
Tear strength | 18.0 | N/mm |
Bond strength | 1.0 | mPa |
Tear strength | 20.0 | N/mm |
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