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Silane coupling agent and preparation method thereof as well as metal adhesive containing silane coupling agent

A silane coupling agent and adhesive technology, applied in adhesives, adhesive additives, chemical instruments and methods, etc., can solve the problems of flammable and explosive, easy to generate dust, adverse effects on the aquatic environment, etc., and achieve high bonding strength, Excellent aging resistance

Inactive Publication Date: 2014-03-12
贾梦虹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, aromatic hydrocarbons (such as toluene, xylene), chlorinated solvents (such as trichlorethylene, tetrachloroethylene) and the like are used as dispersion media, which are not environmentally friendly and are flammable and explosive; aromatic polynitroso compounds are flammable, explosive, and toxic. Large, the three wastes in the production process are serious, and it is a controlled product; lead salts are highly toxic and bioaccumulative, and are easy to generate dust, which is very harmful to human health and the ecological environment during production and use, so many countries and regions have banned their use; Zinc oxide can cause human discomfort, is highly toxic to aquatic organisms, and can cause long-term adverse effects in the aquatic environment

Method used

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  • Silane coupling agent and preparation method thereof as well as metal adhesive containing silane coupling agent
  • Silane coupling agent and preparation method thereof as well as metal adhesive containing silane coupling agent
  • Silane coupling agent and preparation method thereof as well as metal adhesive containing silane coupling agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Example 1 Blocked isocyanate modified silane coupling agent

[0067]

[0068] Follow the steps below to synthesize a blocked isocyanate-modified silane coupling agent:

[0069] a. In a three-necked flask equipped with a stirrer, a thermometer, a condenser and an addition funnel, put the calculated amount of toluene diisocyanate, dibutyltin dilaurate, and anhydrous tetrahydrofuran. Stir and heat the reactant to 70°C, and the solution is refluxed.

[0070] b. Keep the temperature and stir, slowly add stoichiometric p-nitrosophenol, and react for 1.5 hours.

[0071] c. Keeping the temperature and stirring, disperse the calculated amount of γ-aminopropyltriethoxysilane or γ-mercaptopropyltriethoxysilane into tetrahydrofuran and slowly add the mixture to the above reactants, and react 1.5 hours.

[0072] d. Precipitate and dry the reactant in alkanes to obtain the finished product.

[0073] The formula number corresponding to the finished product of blocked isocyanate...

Embodiment 2

[0075] Example 2 Adhesive composition EXP.1-EXP.5

[0076]

Embodiment 3

[0077] Embodiment 3 Adhesive composition EXP.6~EXP.10

[0078]

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Abstract

The invention relates to a silane coupling agent and a preparation method thereof as well as a metal adhesive containing the silane coupling agent. The metal adhesive containing the silane coupling agent comprises at least one halogenated polyolefin, a blocked isocyanate-modified silane coupling agent, a metal oxide, at least one vulcanizing agent and at least one inert inorganic filler, wherein the blocked isocyanate-modified silane coupling agent is a product based on reaction of a nitrosophenol-blocked diisocyanate compound and a silane coupling agent containing terminal active hydrogen. The adhesive composition is especially suitable for bonding of various elastomers and metal base materials vulcanized at low vulcanizing temperature of 90-120 DEG C, is high in bonding strength, excellent in ageing-resistant performance, environmental, can be used as a single-coated product, and also can be matched with a bottom coating adhesive as a face paint.

Description

technical field [0001] The invention relates to a silane coupling agent, a preparation method and a metal adhesive containing the silane coupling agent. The metal adhesive containing the silane coupling agent contains at least one halogenated polyolefin, a blocked isocyanate modified silane coupling agent, a A metal oxide, at least one vulcanizing agent and at least one inert inorganic filler; the blocked isocyanate modified silane coupling agent is based on the reaction product of p-nitrosophenol blocked diisocyanate compound and silane coupling agent containing terminal active hydrogen . The adhesive composition is especially suitable for bonding various elastomers and metal substrates vulcanized at a low vulcanization temperature of 90-120°C. It is environmentally friendly and can be used as a single-coated product or as a top-coat and primer-coat adhesive. , can effectively bond various elastomers and metal substrates, with high bonding strength and excellent aging resist...

Claims

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Application Information

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IPC IPC(8): C09J11/06C07F7/18C09J123/34C09J115/02C09J11/04
Inventor 贾梦虹
Owner 贾梦虹
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