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Two-component strong adhesive and its preparation method and application

An adhesive, two-component technology, applied in the direction of adhesives, adhesive types, conjugated diene adhesives, etc., can solve problems such as low initial adhesion and high initial adhesion that do not meet contact adhesives

Active Publication Date: 2021-01-08
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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  • Two-component strong adhesive and its preparation method and application
  • Two-component strong adhesive and its preparation method and application
  • Two-component strong adhesive and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] This embodiment provides a two-component strong adhesive prepared from the following raw materials in weight percentage:

[0053] Component A: 15% polyol I-stick polyol-S, 15% phenolic resin Kosin resin-1#, 50% acetone and 20% butanone.

[0054] Component B: 20% polyether and polyester blend polyol Kosin polyol-160, 40% Suprasec2020, 5% tackifying resin Kosin resin-2#, 10% polybutadiene modified epoxy Resin Kosin Epoxy-1# and 25% ethyl acetate.

[0055] The preparation method is:

[0056] (1) To prepare component A, pour acetone and methyl ethyl ketone into the stirring tank, heat the stirring tank to 30-40°C, add polyol I-stick polyol-S and stir evenly, seal and react for 2 hours, add phenolic resin Kosin Resin-1#, stir evenly, seal and react for 0.5h to get the adhesive component A.

[0057] (2) To prepare component B, pour the isocyanate Suprasec 2020 into the stirring tank, add 10% polyether and polyester blend polyol Kosin polyol-160, control the reaction temper...

Embodiment 2

[0059] This embodiment provides a two-component strong adhesive prepared from the following raw materials in weight percentage:

[0060] Component A: 20% polyol I-stick polyol-S, 15% phenolic resin Kosin resin-1#, 5% phenolic resin Kosin resin-2#, 30% acetone and 30% butanone.

[0061] Component B: 25% polyether and polyester blend polyol Kosin polyol-160, 35% Suprasec2020, 5% phenolic resin Kosin resin-2#, 5% phenolic resin Kosin resin-3#, 10 % polybutadiene modified epoxy resin Kosin Epoxy-1#, 10% ethyl acetate and 10% butanone.

[0062] The preparation method is:

[0063] (1) To prepare component A, pour acetone and methyl ethyl ketone into the stirring tank, heat the stirring tank to 30-40°C, add polyol I-stick polyol-S and stir evenly, seal and react for 2 hours, add phenolic resin Kosin Resin-1#, Kosin resin-2#, stir evenly, seal and react for 0.5h to get adhesive A component.

[0064] (2) To prepare component B, pour the isocyanate Suprasec 2020 into the stirring tank,...

Embodiment 3

[0066] This embodiment provides a two-component strong adhesive prepared from the following raw materials in weight percentage:

[0067] Component A: 15% polyol I-stick polyol-S, 15% phenolic resin Kosin resin-1#, 50% acetone and 20% butanone.

[0068] Component B: 20% polyether and polyester blend polyol Kosin polyol-2000, 40% Suprasec2020, 5% tackifying resin Kosin resin-2#, 10% polybutadiene modified epoxy Resin Kosin Epoxy-1# and 25% ethyl acetate.

[0069] The preparation method is:

[0070] (1) To prepare component A, pour acetone and methyl ethyl ketone into the stirring tank, heat the stirring tank to 30-40°C, add polyol I-stick polyol-S and stir evenly, seal and react for 2 hours, add phenolic resin Kosin Resin-1#, stir evenly, seal and react for 0.5h to get the adhesive component A.

[0071] (2) To prepare component B, pour the isocyanate Suprasec 2020 into the stirring tank, add 10% polyether and polyester blend polyol Kosin polyol-2000, control the reaction temp...

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Abstract

The invention relates to a double-component adhesive which comprises an A component and a B component. In percentage by weight, the A component comprises the following raw materials: 10% to 30% of polyhydric alcohol, 10% to 20% of reactive tackifying resin and 50% to 80% of solvent; and the B component comprises the following raw materials: 10% to 30% of polyether and polyester blended polyhydricalcohol, 30% to 50% of isocyanate, 5% to 10% of reactive tackifying resin, 5% to 10% of polybutadiene modified epoxy resin and 5% to 25% of solvent. By interaction of each raw material, after the OH-terminated A component and the NCO-terminated B component are mixed, the adhesive disclosed by the invention has high initial adhesion and final adhesion and good heat resistance. Moreover, the double-component package enables the adhesive disclosed by the invention to have good storage stability.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a two-component strong adhesive and its preparation method and application. Background technique [0002] At present, the contact adhesives on the market are mainly pressure-sensitive adhesives. Including acrylate polymer type, vinyl ester polymer type, neoprene type and styrenic polymer, etc. Such adhesives are generally not suitable for structural bonding because of their low heat, weather and chemical resistance. The structural adhesives on the market are generally reactive adhesives, including polyurethane polymers, epoxy polymers and acrylate polymers, etc., which have better heat resistance, weather resistance, water resistance and chemical resistance, and ultimately have higher viscosity. connection strength. But usually the initial tack is low, which does not meet the requirements of high initial tack of contact adhesives. Contents of the invention [0003] Based on this, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/08C09J109/00C08G18/40C08G18/42C08G18/48C08G18/58C08G18/54
CPCC08G18/4045C08G18/42C08G18/48C08G18/54C08G18/58C09J175/08C08L9/00
Inventor 张辉
Owner GUANGZHOU RETAN NEW MATERIALS & HI TECH CO LTD