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Bicomponent environment-friendly type adhesive and preparing method thereof

A two-component adhesive, environmentally friendly technology, applied in the direction of adhesives, unsaturated alcohol copolymer adhesives, non-polymer organic compound adhesives, etc., can solve the problem of poor water resistance, poor heat and humidity resistance, affecting use, etc. problem, to achieve the effect of low cost, lower production cost and lower cost

Inactive Publication Date: 2008-07-02
王喆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the water resistance is not good, the resistance to humidity and heat is poor, which also greatly affects its use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] First take 20kg of polyvinyl alcohol (model 2099) and 300kg of water and add them to the reaction kettle at the same time, heat up under constant stirring, cool to 50-60°C after it dissolves completely, add emulsifier OP-108kg, dodecane 5 kilograms of sodium phenylsulfate; under stirring, add successively to make a total amount of 2 kilograms of 20-40% ammonium persulfate aqueous solution, then add a mixed total amount of 105 kilograms of 10-20% vinyl acetate ( 100 kg) and fumaric anhydride (5 kg), under continuous stirring, the temperature rose to 80 ° C; then the remaining vinyl acetate and fumaric anhydride were added dropwise, and the remaining ammonium persulfate aqueous solution was evenly added at the same time. Complete in 2-4 hours; heat up to 90°C and keep for one hour, add 20 kg of kaolin after cooling down to 70-80°C, stir evenly and keep for 20 minutes, cool to 30°C, and pack it out, which is the main component of the two-component adhesive The finished pro...

Embodiment 2

[0048] Get respectively 15 kilograms of polyvinyl alcohol (model 2099) that is used to prepare the two-component adhesive main agent, 300 kilograms of water, 5 kilograms of emulsifier OP-10, 3 kilograms of sodium dodecylbenzenesulfonate, potassium persulfate aqueous solution ( Dissolve potassium persulfate in water) 2.5 kilograms, 140 kilograms of methyl methacrylate, 3 kilograms of methacrylic acid, 20 kilograms of bentonite; finally make about 488 kilograms of main agent finished product of two-component adhesive (due to the presence of a small amount of water Volatile).

[0049] Take 60 kg of any one of diphenylmethane diisocyanate, hexamethylene diisocyanate, toluene diisocyanate or polymethylene polyphenyl polyisocyanate used to prepare the two-component adhesive curing agent respectively.

[0050] Its preparation method is the same as that of Example 1, so it is omitted.

[0051] Its practical effect: stick this glue to the hardest oak wood, boil it in boiling water for...

Embodiment 3

[0053] Get respectively 22 kilograms of polyvinyl alcohol (model 2099) that is used to prepare the two-component adhesive main agent, 300 kilograms of water, 6 kilograms of emulsifier OP-10, 4 kilograms of sodium dodecylbenzenesulfonate, sodium persulfate aqueous solution ( Dissolve 3 kg of sodium persulfate in water), 160 kg of butyl methacrylate, 3 kg of maleic anhydride, and 18 kg of light calcium carbonate; finally make about 516 kg of the main agent of the two-component adhesive.

[0054] Take respectively 4 kilograms of castor oil, 60 kilograms of toluene diisocyanate and 50 kilograms of organic saturated esters used to prepare the two-component adhesive curing agent; finally make 114 kilograms of the finished curing agent.

[0055] Its preparation method and practical effect are identical with embodiment 1, so omit it.

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Abstract

The invention relates to a bicomponent environment-friendly adhesive of enhanced type which comprises base and curing agent. The main point of the technology is that a certain amount of polyvinyl alcohol and water are added in a reaction vessel to be continuously stirred to lead the temperature to be increased; after the mixture is fully dissolved and cooled, a certain amount of emulsifier OP-10 and dodecyl benzene sodium sulfate are added into the obtained material and stirred, then added with proper amount of persulphate water solution and prepared alkenyl unsaturated acid ester and alkeneyl unsaturated anhydride or acid mixture; after the temperature is increased to 80 DEG C, the rest alkenyl unsaturated acid ester and alkeneyl unsaturated anhydride or acid mixture are added, then evenly added with the rest persulphate water solution; the obtained material is added with addictive after 2-4 hours, stirred and cooled to 30 DEG C, and the final base product is obtained. The curing agent is prepared by the method of subpackage polyisocyanate, or mixing and continuously stirring compound containing more than one hydroxyl, polyisocyanate and organic acid ester, thus getting the curing agent finished product.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a water-soluble two-component environment-friendly adhesive and a preparation method thereof. It is mainly used for bonding woodworking furniture, various wood-based panels, glulam processing, advanced solid wood composite floor bonding, decoration and many other aspects, and has a wide range of applications. Background technique [0002] As we all know, formaldehyde is the biggest killer that harms people's health in wood bonding and decoration. Especially the formaldehyde content in urea-formaldehyde glue, phenol-formaldehyde glue and melamine-formaldehyde glue seriously exceeds the standard, and the wood-based panels produced are not only polluted the environment when used for decoration, but also cause great harm to the human body. There is also a big problem in white latex, which is second only to urea-formaldehyde glue in wood-based panels and wood processing. Such as p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J129/04C09J4/02
Inventor 王喆王学谦
Owner 王喆
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