Poly (urea-urethane) stone crack pouring adhesive and stone crack pouring method
A urea urethane and adhesive technology, applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve the problems of harsh construction conditions, low adhesive strength, poor fluidity, etc. Excellent anti-yellowing performance, high viscosity controllability, fast curing effect
Active Publication Date: 2016-02-03
WUHAN KEDA MARBLE PROTECTIVE MATERIALS
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Problems solved by technology
[0006] In view of the above defects or improvement needs of the prior art, the present invention provides a polyureaurethane stone joint filling adhesive and a stone joint filling method. The mutual cooperation of the curing agent and the polyurea urethane system improves the adhesive strength while reducing the construction requirements, thus solving the poor fluidity of the existing stone joint filling adhesives, the low adhesive strength, easy yellowing, and the construction conditions required by the joint filling method demanding technical questions
Method used
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Embodiment 1
[0097] Component A: 90 parts of IPDI, 10 parts of propylene carbonate.
[0098] Component B: polyether polyol GE-30395 parts, secondary amine curing agent SD-4015 parts, organotin catalyst 0.1 part, ketimine 0.5 part, leveling agent 0.1 part, defoamer 0.1 part.
[0099] The ratio of A and B components is 2:1.
Embodiment 2
[0101] Component A: 100 parts of HDI trimer.
[0102] Component B: polyether polyol MN-305010, GMN-45085, secondary amine curing agent SD-2315, organotin catalyst 0.05, ketimine 1, leveling agent 0.2, defoamer 0.2 .
[0103] The ratio of A and B components is 1:1.
Embodiment 3
[0105] Component A: 90 parts of NCO-terminated polyurethane oligomer (prepared from IPDI and MN-3050 according to the above synthesis method, NCO:OH=15:1), 10 parts of propylene carbonate.
[0106] Component B: polyether polyol GMN-45070 parts, ethylenediamine polyether polyol tetraol 20 parts, secondary amine curing agent SD-40110 parts, organotin catalyst 0.05 parts, oxazolidine dewatering agent ALT-2010.5 parts, 0.2 parts of leveling agent, 0.2 parts of defoamer.
[0107] The ratio of A and B components is 3:1.
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Abstract
The invention discloses poly (urea-urethane) stone crack pouring adhesive and a stone crack pouring method. The poly (urea-urethane) stone crack pouring adhesive comprises a component A and a component B, wherein the component A contains 90 to 100 parts by weight of non-aromatic isocyanate or non-aromatic isocyanate-terminated NOC-terminated polyurethane low polymer, and the viscosity of the component A is 50mpa.s; the component B contains 90 to 95 parts by weight of hydroxyl terminated polyether glycol, 5 to 10 parts by weight of special secondary amine curing agent and 0.05 to 0.5 part by weight of catalyst, and the viscosity of the component B is 200 to 500mpa.s; the ratio of the component A and the component B is 1-5 to 1, and the initial viscosity of a mixture is below 300mpa.s. According to the tone crack pouring method, construction can be performed 12 to 24h after adhesive pouring. The adhesive is strong in fluidity, moist-resistant, and yellowing-resistant, and during stone crack pouring, the construction is convenient and the curing time is short.
Description
technical field [0001] The invention belongs to the field of stone processing, and more specifically relates to a polyureaurethane stone filling adhesive and a stone filling method. Background technique [0002] As one of the representative decorative styles of modern decoration, stone decoration has become more and more popular among people. In the process of stone mining, there are many processes from stone blocks to finished stone slabs, the first of which is gang sawing and slicing. However, natural stones have natural cracks and pores inside, making it easy to cut stones. Fragmentation along the cracks, or even crushing damage, makes it impossible to become a plate, resulting in a low stone yield. [0003] At present, there is a reinforcement technology for block stone before cutting on the market. It mainly uses high-pressure infusion to pour epoxy resin adhesive into the natural cracks of the stone through the cracks of the stone. After curing and curing, it can play...
Claims
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IPC IPC(8): C09J175/08C08G18/48C08G18/79C08G18/75C08G18/73C08G18/10C08G18/32C08G18/66
Inventor 杜昆文杜昆武王云飞彭玖玲张忠侠
Owner WUHAN KEDA MARBLE PROTECTIVE MATERIALS