Nail-free glue and preparation method thereof

A technology of nail-free glue and formula, which is applied in the direction of adhesives, adhesive types, polyether adhesives, etc., can solve problems affecting construction operations, high internal stress of glue, and strong odor, etc., and achieve good application and promotion prospects. The effect of wide base material and high bonding strength

Inactive Publication Date: 2015-05-13
广东鑫展新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Epoxy resin adhesive has high bonding strength, but the curing speed is slow at room temperature, which affects the construction operation, and it is not suitable for construction at low temperature (below 10°C)
Although the unsaturated polyester adhesive has fast curing speed, low price and easy operation, its adhesive force is poor, the shrinkage rate is 10%-15%, the internal stress of the colloid is high, and the adhesion is not strong. In the water environment, the main resin will gradually hydrolyze, especially in the environment of acid rain and alkaline water, which will lead to a decrease in the bonding strength
Although polyvinyl acetate resin adhesives and rubber elastomer-tackifying resin adhesives have high bonding strength, convenient construction, and a wide range of applications, they contain organic solvents and have a strong odor after construction, which will damage human health.

Method used

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  • Nail-free glue and preparation method thereof
  • Nail-free glue and preparation method thereof
  • Nail-free glue and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Place the nano-calcium carbonate in a constant temperature oven and dry at 120°C for 20 hours; 100 parts of silyl-terminated polyether, 80 parts of polyoxypropylene diol, bis(2,2,6,6-tetramethyl- Add 2 parts of 4-piperidinyl) sebacate into the planetary kneader, then vacuumize, continue stirring and degassing for 20 minutes; stop stirring and vacuuming, add 60 and 70 parts of nano-calcium carbonate fillers in batches, and mix well Vacuum at 100-110°C to 0.090±0.005MPa, stir and degas for 1-2 hours; reduce the temperature of the obtained high-mixture to below 50°C, fill with nitrogen, add 1.5 parts of vinyltrimethoxysilane, adhesion promotion Agent aminopropyltriethoxysilane 3 parts, mix well. Add 2 parts of catalyst dibutyltin dilaurate under the condition of nitrogen protection, and mix evenly; vacuumize, continue to mix evenly; fill with nitrogen to release the vacuum to normal pressure, and discharge the material into sub-packages to obtain nail-free glue.

[0039] ...

Embodiment 2

[0042] The preparation method of this sealant is as in Example 1.

[0043] Raw material composition and mass parts in the embodiment 2 of table 2

[0044]

Embodiment 3

[0046] The preparation method of this sealant is as in Example 1.

[0047] Raw material composition and mass parts in the embodiment 3 of table 3

[0048]

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PUM

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Abstract

The invention discloses nail-free glue and a preparation method thereof, and belongs to the field of a binding agent. The nail-free glue is characterized in that the sealant consists of the following components in parts by weight: 100 parts of silane-terminated polyether, 70-140 parts of a plasticizer, 1-4 parts of a water removal agent, 0.5-4 parts of a stabilizer, 120-420 parts of filler, 3-6 parts of an adhesion accelerant and 2-5 parts of a catalyst. The product disclosed by the invention is free from volatile solvent component in a component formula, environmentally friendly and free from harm, and has performances of fast hardening, excellent mechanical property and adhesion property, heat resistance, water resistance, aging resistance and the like; and the nail-free glue can be widely applied to the binding of such base materials as stone, glass, wood, metal, plastic and the like.

Description

technical field [0001] The invention belongs to the field of sealants / adhesives, and relates to a nail-free glue and a preparation method thereof. technical background [0002] The interior decoration of modern buildings generally adopts the method of bonding to replace nails or bolts. The adhesive used is often called nail-free glue to achieve the purpose of beautifying the appearance. Substrates to be bonded include wood, cement boards, metals, plastics, ceramic tiles, and composite boards. In terms of decoration, nail-free glue is usually divided into water-based, solvent-based and body-based. In order to facilitate construction and bonding, volatile solvents are often used, including aldehydes, benzene, and chlorinated organic solvents, which are harmful to the human body and the environment. Harmful organic solvents. From the perspective of polymer resin and its application fields, nail-free adhesives can be divided into epoxy resin adhesives, unsaturated polyester ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J171/02C09J11/08C09J11/06C09J11/04
Inventor 黄活阳何晓军
Owner 广东鑫展新材料有限公司
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