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A kind of polyurea urethane stone joint filling adhesive and stone material joint filling method

A technology of urea urethane and adhesive, applied in the field of stone processing, can solve the problems of harsh construction conditions, low adhesive strength, poor fluidity, etc., and achieve excellent yellowing resistance, high viscosity adjustable, and fast curing Effect

Active Publication Date: 2018-03-27
WUHAN KEDA MARBLE PROTECTIVE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • A kind of polyurea urethane stone joint filling adhesive and stone material joint filling method
  • A kind of polyurea urethane stone joint filling adhesive and stone material joint filling method
  • A kind of polyurea urethane stone joint filling adhesive and stone material joint filling method

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Effect test

Embodiment 1

[0097] Component A: 90 parts of IPDI, 10 parts of propylene carbonate.

[0098] Component B: 95 parts of polyether polyol GE-303, 5 parts of secondary amine curing agent SD-401, 0.1 part of organotin catalyst, 0.5 part of ketimine, 0.1 part of leveling agent, and 0.1 part of defoamer.

[0099] The ratio of A and B components is 2:1.

Embodiment 2

[0101] Component A: 100 parts of HDI trimer.

[0102] Component B: 10 parts of polyether polyol MN-3050, 85 parts of GMN-450, 5 parts of secondary amine curing agent SD-231, 0.05 parts of organic tin catalyst, 1 part of ketimine, 0.2 parts of leveling agent, defoaming 0.2 parts of the agent.

[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: 70 parts of polyether polyol GMN-450, 20 parts of ethylenediamine polyether polyol, 10 parts of secondary amine curing agent SD-40110 parts, 0.05 parts of organic tin catalyst, 0.5 parts of oxazolidine dewatering agent ALT-201 parts, 0.2 parts of leveling agent, and 0.2 parts of defoamer.

[0107] The ratio of A and B components is 3:1.

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Abstract

The invention discloses a polyurea urethane stone joint filling adhesive and a stone joint filling method. The polyurea urethane stone filling adhesive includes two components A and B, wherein: component A contains 90 to 100 parts by weight of non-aromatic isocyanate or NCO-terminated polyurethane oligomer terminated by non-aromatic isocyanate, Its viscosity is less than 50mpa.s; component B contains 90-95 parts by weight of hydroxyl-terminated polyether polyol, 5-10 parts by weight of special secondary amine curing agent, and 0.05-0.5 parts by weight of catalyst, and its viscosity is 200 ~500mpa.s; the proportion of A component and B component is between 1~5:1, and the initial viscosity of the mixture is below 300mpa.s. According to the stone joint filling method, processing can be carried out after curing for 12 to 24 hours after glue filling. The adhesive has strong fluidity, moisture resistance and yellowing resistance, and is convenient for construction and short maintenance time for stone joint filling.

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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Application Information

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Patent Type & Authority Patents(China)
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