Method for preparing adhesive special for flexible veneers or bricks

A production method and technology of decorative panels, applied in the direction of adhesives, acidic copolymer adhesives, adhesive types, etc., to achieve the effect of eliminating pan-alkali, excellent thixotropic performance, and high construction efficiency

Inactive Publication Date: 2012-05-23
东营宜达新材料有限责任公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to aim at the above-mentioned defects existing in the prior art, and to provide a method for making a special adhesive for flexible veneer panels or bricks. Adhesive, which can solve the problems existing in the construction operation of flexible veneer (brick)

Method used

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Embodiment Construction

[0019] For describing the present invention in detail, the present invention will be further described below in conjunction with the example of specific implementation:

[0020] Production method of polyurethane water-based latex: 1. Make prepolymer, according to the following weight ratio: 52% of DL2000 polyether polyol, 20% of N310 polyether polyol, 28% of hexamethylene diisocyanate HDI, add it into a standard glass-lined reaction kettle to heat up To 80°C-95°C, react at this temperature for 3-5 hours to prepare the prepolymer for later use; 2. Prepolymer hydrophilic graft body, measure 45% of prepolymer according to the following weight ratio; 50% of acetone; Dimethylol propionic acid (DMPA) 5% is added in the glass-lined reactor with condenser and is warmed up to 65 ℃-75 ℃ and carries out solvent reflux grafting for 2 hours and makes prepolymer hydrophilic graft for subsequent use; 3. The polyurethane water-based latex is measured by the following weight ratio: 40% of the ...

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Abstract

The invention relates to a method for preparing an adhesive special for flexible veneers or flexible bricks. In the method, acrylic acid aqueous latex is modified by using polyurethane aqueous latex to improve the low-temperature flexibility of the acrylic acid aqueous latex, so the acrylic acid aqueous latex is not hardened at a low temperature and is not softened at a high temperature, and the water resisting property and the binding strength are improved. The method for preparing the adhesive special for the flexible veneers or the flexible bricks has the advantages that: 1, the adhesive is ready for use after a can is opened, does not need field mixing, and is convenient and efficient; 2, a sizing process of the adhesive can adopt a spray coating method or a knife coating method, and has high construction efficiency; 3, the adhesive has high thixotropic property and sag resisting property, the bricks can be adsorbed by applying light pressure instead of kneading and pressing brickbodies, so time and labor are saved; and 4, as the adhesive is semitransparent after being sprayed on a wall body, no influence on observing a snapped control line is generated, the face bricks can be glued along the control line which is snapped on a wall in advance, and the operation is simple and convenient.

Description

1. Technical field: [0001] The invention relates to a construction-specific adhesive and a production method, in particular to a production method of a special adhesive for flexible decorative panels or bricks. 2. Background technology: [0002] At present, the adhesive and jointing agent for flexible veneer (or brick) is a one-component polymer dry powder mortar made of separable redispersible rubber powder, cement, fine sand and other additives, which is used after adding water and stirring on site. There is also a two-component polymer mortar that is mixed with polymer emulsion and auxiliary materials such as cement sand on site. During construction operations, there are often the following eight major problems: [0003] 1. On-site batching, in terms of metering, stirring homogeneity, slurry viscosity, etc., the physical properties of the material will be affected due to manual operation. 2. When pasting flexible decorative panels (or bricks), although the thin-layer m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/02C09J175/08
Inventor 李金诺顾效国谈乾生李文锋
Owner 东营宜达新材料有限责任公司
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