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Stone adhesive and preparation method thereof

A technology for adhesives and stone materials, applied in the direction of adhesives, adhesive types, polymer adhesive additives, etc., can solve the problems of poor temperature adaptability, high VOC content, etc., achieve good toughness, good color fullness, and improve The effect of temperature adaptability

Active Publication Date: 2021-04-09
三棵树(上海)新材料研究有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of existing stone adhesives such as poor temperature adaptability and high VOC content, the present invention provides a stone adhesive and a preparation method thereof, through the combination of a bio-based plasticizer and a high-functionality novolak epoxy epoxy resin mixture , has the advantages of wide temperature adaptability, high strength, good toughness, stable color, low VOC, environmental protection and health

Method used

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  • Stone adhesive and preparation method thereof
  • Stone adhesive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0070] A kind of stone adhesive of the present invention is prepared from following components and preparation method:

[0071] (1) Preparation of component A: Mix 28 parts of bisphenol A epoxy resin, 7 parts of novolac epoxy, and 5 parts of epoxy soybean oil for 10 minutes to mix evenly, add 1 part of nano-calcium to mix and then pass through a three-roller machine Grind and disperse once, then add 5 parts of 200-mesh red colored sand and 54 parts of calcite powder, stir at -0.06MPa for 20 minutes and discharge to obtain component A;

[0072] (2) Preparation of component B:

[0073] (1) Preparation of modified curing agent: put 3 mol of toluene diisocyanate in a container, heat up to 60°C, add 1 mol of polyethylene glycol PEG400 dropwise, complete the dropwise addition within 1 hour, keep at 60°C for 2 hours, and then discharge to obtain modified Reactive agent isocyanate terminated polyether polyol. Then put 2.5mol of triethylenetetramine in the container, raise the temper...

Embodiment 2

[0077] A kind of stone adhesive of the present invention is prepared from following components and preparation method:

[0078] (1) Preparation of component A: Mix 22 parts of bisphenol F-type epoxy resin and 33 parts of novolac epoxy with 25 parts of epoxy linseed oil for 15 minutes to mix evenly, add 5 parts of polyamide wax and mix through three Grind and disperse with a roller machine for 3 times, then add 10 parts of 400-mesh red colored sand and 5 parts of silicon micropowder, stir at -0.1MPa for 40 minutes and discharge to obtain component A;

[0079] (2) Preparation of component B:

[0080] (1) Preparation of modified curing agent: put 5 mol of hydrogenated phenylmethane diisocyanate in a container, raise the temperature to 80°C, add 1 mol of polyethylene glycol PEG600 dropwise, complete the dropwise addition within 3 hours, keep at 80°C for 4 hours, and leave isocyanate-terminated polyether polyols. Then put 4 mol of hydrogenated m-xylylenediamine in the container, ...

Embodiment 3

[0084] A kind of stone adhesive of the present invention is prepared from following components and preparation method:

[0085] (1) Preparation of component A: mix 20 parts of bisphenol A type epoxy resin, 8 parts of bisphenol F type epoxy resin, and 12 parts of novolac epoxy with 8 parts of epoxy cottonseed oil and 2 parts of epoxy oil Stir the butyl ester for 12 minutes to mix evenly, add 2 parts of organic bentonite to mix, then grind and disperse twice through a three-roller machine, then add 6 parts of 300 mesh red colored sand and 42 parts of barite powder, and stir for 30 minutes under vacuum at -0.07MPa. material, to obtain A component;

[0086] (2) Preparation of component B:

[0087] (1) Preparation of modified curing agent: put 4 mol of methylcyclohexyl diisocyanate in a container, heat up to 70°C, add 1 mol of polypropylene glycol PPG400 dropwise, complete the dropwise addition within 2 hours, keep at 70°C for 3 hours, and discharge to obtain isocyanate End-cappe...

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Abstract

The invention relates to a stone adhesive and a preparation method thereof. The stone adhesive comprises a component A and a component B, wherein the component A is mainly prepared from the following components in parts by weight: 35-55 parts of an epoxy resin, 5-25 parts of a bio-based plasticizer, 1-5 parts of a thixotropic agent, 5-54 parts of an inorganic filler and 5-10 parts of red color sand, and the component B is mainly prepared from the following components in parts by weight: 35-55 parts of a curing agent, 1-5 parts of an accelerant, 1-5 parts of a thixotropic agent, 25-58 parts of an inorganic filler and 5-10 parts of green colored sand. According to the invention, the stone adhesive overcomes the defects of poor temperature adaptability, high VOC content and the like of the existing stone adhesive, and has the advantages of wide temperature adaptability, high strength, favorable toughness, stable color, low VOC, environment friendliness, health and the like through the cooperation of the bio-based plasticizer and the high-functionality phenolic epoxy epoxy resin mixture.

Description

technical field [0001] The invention relates to a stone adhesive and a preparation method thereof, which are applied in the field of adhesives. Background technique [0002] As the main style type of modern urban architectural exterior decoration, dry-hanging stone occupies a large proportion of use in the high-end architectural decoration market due to its beautiful and natural, green and environmental protection, health and safety advantages. With the emergence of stone dry hanging technology, more and more stone adhesive varieties are familiar to people. Compared with the "wet laying" process of traditional cement, stone dry hanging has the characteristics of high bonding strength, good toughness without cracking, and good weather resistance, thus avoiding the problems of stone falling off, alkali return, water stains, and rust caused by traditional processes . [0003] Epoxy resin is widely used in stone adhesives because of its high bonding strength, small curing shri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/02C09J163/04C09J11/04C09J11/06C09J11/08C08G59/50
CPCC09J163/00C09J163/04C09J11/04C09J11/06C09J11/08C08G59/504C08G59/502C08G59/5033C08G59/5026C08L2205/035C08L2205/025C08K2003/265C08L63/04C08L91/00C08K13/02C08K3/013C08K3/26C08L63/00C08K3/36C08K13/04C08K7/26C08K5/1515
Inventor 蔡珩王志银李世鹏黄敏阳王成吴颖王艳君
Owner 三棵树(上海)新材料研究有限公司
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