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One-component strong adhesive and preparation method and application thereof

An adhesive, one-component technology, used in adhesives, adhesive types, polyurea/polyurethane adhesives, etc. Initial tack, improved rigidity, and the effect of high initial tack

Active Publication Date: 2019-01-18
GUANGZHOU RETAN NEW MATERIALS & HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But usually the initial tack is low, which does not meet the requirements of high initial tack of contact adhesives

Method used

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  • One-component strong adhesive and preparation method and application thereof
  • One-component strong adhesive and preparation method and application thereof
  • One-component strong adhesive and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The present embodiment provides a one-component strong adhesive prepared from the following raw materials by weight:

[0041] 30% polyether and polyester blended polyol Kosin polyol-1000, 30% isocyanate Suprasec2020, 5% phenolic resin Kosin resin-2#, 10% polybutadiene modified epoxy resin, 15% butanone and 10% ethyl acetate.

[0042] The preparation method is:

[0043] Pour the isocyanate Suprasec 2020 into the stirred tank and heat it to 80°C, add 20% polyether and polyester blend type polyol Kosin polyol-1000, control the reaction temperature between 70-90°C, react for 2h, add 10% Polybutadiene-modified epoxy resin is reacted for 1 h to obtain a modified isocyanate prepolymer.

[0044] Add the remaining polyether and polyester blended polyol Kosinpolyol-1000 to the above modified isocyanate prepolymer, seal the reaction for 2 hours, reduce the temperature of the material to 50 ° C, add methyl ethyl ketone and ethyl acetate, stir evenly, and seal the reaction for 0.5...

Embodiment 2

[0046] The present embodiment provides a one-component strong adhesive prepared from the following raw materials by weight:

[0047] 30% polyether and polyester blended polyol Kosin polyol-1000, 30% isocyanate Suprasec2020, 8% polybutadiene modified epoxy resin, 5% phenolic resin Kosin resin-2#, 5% phenolic resin Kosinresin-3#, 12% butanone and 10% ethyl acetate.

[0048] The preparation method is:

[0049] Pour the isocyanate Suprasec 2020 into the stirred tank and heat it to 80°C, add 20% polyether and polyester blend type polyol Kosin polyol-1000, control the reaction temperature between 70-90°C, react for 2h, add 10% Polybutadiene-modified epoxy resin is reacted for 1 h to obtain a modified isocyanate prepolymer.

[0050] Add the remaining polyether and polyester blended polyol Kosin polyol-1000 to the above isocyanate prepolymer, seal the reaction for 2h, lower the temperature of the material to 50°C, add methyl ethyl ketone and ethyl acetate, stir evenly, and seal the ...

Embodiment 3

[0052] The present embodiment provides a one-component strong adhesive prepared from the following raw materials by weight:

[0053]35% polyether and polyester blend polyol, 30% isocyanate Suprasec 2020, 5% phenolic resin Kosin resin-2#, 5% phenolic resin Kosin resin-3#, 5% polybutadiene Modified epoxy resin, 10% butanone and 10% ethyl acetate.

[0054] The preparation method is:

[0055] Pour the isocyanate Suprasec 2020 into the stirred tank and heat it to 80°C, add 25% polyether and polyester blend type polyol Kosin polyol-1000, control the reaction temperature between 70-90°C, react for 2h, add 5% Polybutadiene-modified epoxy resin is reacted for 1 h to obtain a modified isocyanate prepolymer.

[0056] Add the remaining polyether and polyester blended polyol Kosin polyol-1000 to the above isocyanate prepolymer, seal the reaction for 2h, lower the temperature of the material to 50°C, add methyl ethyl ketone and ethyl acetate, stir evenly, and seal the reaction for 0.5h ,...

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Abstract

The invention relates to a one-component strong adhesive. The one-component strong adhesive comprises the following raw materials in percent by weight: 20-40% of polyether and polyester blend polyol,20-40% of isocyanate, 5-10% of reactive tackifying resin, 5-10% of polybutadiene modified epoxy resin and 15-35% of a solvent. The adhesive further has relatively strong initial adhesion, final adhesion and heat resistance, can be applied to PVC / density board adhesion and beech / beech adhesion and has a very wide prospect.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a single-component strong adhesive and a preparation method and application thereof. Background technique [0002] At present, the contact adhesives on the market are mainly pressure-sensitive adhesives. Including acrylate polymer type, vinyl ester polymer type, chloroprene type and styrene type polymer etc. Adhesives of this type generally cannot be used for structural bonding and have low thermal, weathering and chemical resistance properties. The structural adhesives on the market are generally reactive adhesives, including polyurethane polymers, epoxy polymers and acrylate polymers, etc., which have good heat resistance, weather resistance, water resistance and chemical resistance. connection strength. However, the initial tack is usually low, which does not meet the requirements of high initial tack for contact adhesives. SUMMARY OF THE INVENTION [0003] Based on this, the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J175/06C09J175/14C08G18/69C08G18/48C08G18/42C08G18/12C08G18/54
CPCC08G18/12C08G18/4018C08G18/42C08G18/48C08G18/698C09J175/06C09J175/08C09J175/14C08G18/40
Inventor 张辉
Owner GUANGZHOU RETAN NEW MATERIALS & HI TECH CO LTD
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