Road crack-filling adhesive suitable for wet-surface crack and preparation method thereof
A technology for seam filling and road, applied in the direction of adhesive, adhesive type, polyurea/polyurethane adhesive, etc., can solve the problems of damaged roadbed, poor bonding effect on wet surface, complicated process, etc., and achieve good tearing and tensile strength, increased adhesion, and strong hydrophobicity
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[0035] Example 1
[0036] A preparation method of road grouting glue suitable for wet surface cracks is as follows:
[0037] Preparation of component A: Weigh 10 parts of amino-terminated polyoxypropylene ether, 20 parts of hydroxyl-terminated liquid polybutadiene rubber, and 59 parts of polyether polyol. Stir and vacuum dehydrate in the temperature range of 90℃~110℃ for 2~4h, then Add 3 parts of polyvinyl butyral, 2.5 parts of tetraethoxysilane, 1.5 parts of ethoxy-modified trisiloxane, 3,3'-dichloro-4,4'-diaminodiphenylmethane 1 Parts, 1 part of N,N-dihydroxy(diisopropyl)aniline, 1 part of pentamethyldiethylenetriamine, 1 part of dibutyltin dilaurate, stirring and vacuum dehydration for 1~2h, packaging for later use;
[0038] Preparation of component B: First, stir the polytetrahydrofuran ether glycol and polyethylene glycol at a temperature range of 90℃~110℃ for vacuum dehydration for 2~4h, then add polymethylene polyphenyl polyisocyanate, Isophorone diisocyanate is reacted at ...
Example Embodiment
[0041] Example 2
[0042] A preparation method of road grouting glue suitable for wet surface cracks is as follows:
[0043] Preparation of component A: Weigh 13 parts of amino-terminated polyoxyethylene ether, 14 parts of hydroxyl-terminated liquid polybutadiene rubber, and 68 parts of polyether polyol. Stir and vacuum dehydrate in the temperature range of 90℃~110℃ for 2~4h, then Add 5 parts of polyvinyl butyral, 3 parts of tetraethoxysilane, 2 parts of ethoxy-modified trisiloxane, 3,3'-dichloro-4,4'-diaminodiphenylmethane 2 Parts, 1 part of 2-methylpentanediamine, 1 part of pentamethyldiethylenetriamine, 1 part of triethylenediamine, stirring and vacuum dehydration for 1~2h, packaging for later use;
[0044] Preparation of component B: First, stir the polytetrahydrofuran ether glycol and polyethylene glycol at a temperature range of 90℃~110℃ for vacuum dehydration for 2~4h, then cool to 50℃~60℃ and add diphenylmethane diisocyanate and isophor. The ketone diisocyanate is reacted ...
Example Embodiment
[0047] Example 3
[0048] A preparation method of road grouting glue suitable for wet surface cracks is as follows:
[0049] Preparation of component A: weigh 15 parts of amino-terminated polyoxyethylene ether, 17 parts of hydroxyl-terminated liquid polybutadiene rubber, and 61 parts of polyether polyol. Stir and vacuum dehydrate in the temperature range of 90℃~110℃ for 2~4h, then Add 2 parts of polyvinyl butyral, 1 part of tetraethoxysilane, 1 part of ethoxy-modified trisiloxane, 1 part of 2-methylpentanediamine, N,N-dihydroxy (diisopropyl) Base) 1 part of aniline, 1 part of triethylenediamine, stirred and vacuum dehydrated for 1~2h, packaged for later use;
[0050] Preparation of component B: First, stir the polytetrahydrofuran ether glycol and polyethylene glycol at a temperature range of 90℃~110℃ for vacuum dehydration for 2~4h, then add polymethylene polyphenyl polyisocyanate, Diphenylmethane diisocyanate is reacted at about 85°C to prepare polyurethane prepolymer, and the NC...
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