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Water-resistant polyurethane adhesive
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A polyurethane adhesive and water resistance technology, applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive additives, etc., can solve problems such as poor water resistance, improve initial and final adhesive strength, water resistance The effect of excellent performance and high bond strength
Inactive Publication Date: 2018-05-18
阜阳市龙建包装材料有限公司
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Problems solved by technology
Although a variety of polyurethane adhesives have been disclosed, the existing polyurethane adhesives have poor water resistance, which limits their use in some special environments
Method used
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[0017] A water-resistant polyurethane adhesive proposed by the present invention, its raw materials include by weight: 15 parts of polyisocyanate, 20 parts of poly-1,4-butylene adipate diol, polyε-caprolactone diol 10 parts of alcohol, 25 parts of lignin, 0.3 parts of catalyst, 22 parts of polyethyleneimine, 1 part of terpene resin, 3 parts of nano titanium dioxide, 2 parts of nano silicon dioxide, 3.5 parts of titanium diboride, 0.2 parts of ferroussulfate , 2 parts of composite flame retardant, 15 parts of polystyrene, 0.1 part of glycerin, 8 parts of triethanolamine, 15 parts of solvent, and 0.18 part of coupling agent.
Embodiment 3
[0019] A kind of water-resistant polyurethane adhesive proposed by the present invention, its raw materials include by weight: 43 parts of polyisocyanate, 9 parts of poly-1,4-butylene adipate diol, polyε-caprolactone diol 32 parts of alcohol, 9 parts of lignin, 1.3 parts of catalyst, 14 parts of polyethyleneimine, 3 parts of terpene resin, 1.5 parts of nano titanium dioxide, 7 parts of nano silicon dioxide, 1.6 parts of titanium diboride, 1.3 parts of ferrous sulfate , 3.2 parts of composite flame retardant, 13 parts of polystyrene, 0.2 parts of glycerin, 7 parts of triethanolamine, 20 parts of solvent, and 0.13 parts of coupling agent;
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technical field [0001] The invention relates to the technical field of adhesives, in particular to a water-resistant polyurethane adhesive. Background technique [0002] Polyurethane adhesives refer to adhesives containing carbamate groups or isocyanate groups in the molecular chain. Because of their excellent bonding performance and good flexibility, impact resistance, solvent resistance, abrasion resistance, It is widely used in civil, sports, aerospace, military and other fields due to its flexibility and low temperature resistance, and has become one of the indispensable important materials. Although a variety of polyurethane adhesives have been disclosed, the existing polyurethane adhesives have poor water resistance, which limits their use in some special environments. Contents of the invention [0003] Based on the technical problems in the background technology, the present invention proposes a water-resistant polyurethane adhesive, which has high bonding strength...
Claims
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Application Information
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