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High peel strength acrylate adhesive

An acrylic and adhesive technology, applied in the direction of adhesives, non-polymer organic compound adhesives, etc., can solve the problems of poor toughness, looseness, falling off, etc., achieve the effect of improving toughness and peel strength, and improving the internal structure of the colloid

Inactive Publication Date: 2014-06-04
HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary second-generation acrylic structural adhesives usually have a shear strength of 20-30MPa, but because of their poor toughness, the peel strength is only 50-100 N / 25mm, so that in industrial applications, the cured adhesive layer is subject to longitudinal tension ( When it is perpendicular to the bonding surface), it sometimes loosens or even falls off, causing undue loss

Method used

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  • High peel strength acrylate adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Proportion Curing agent component Main agent component

[0021] Methyl Methacrylate 52%Wt 54%Wt

[0022] Hydroxyethyl Methacrylate 2%Wt -

[0023] Methacrylic acid 12%Wt 4%Wt

[0024] 2-Hydroxyethyl methacrylate phosphate 3%Wt -

[0025] MBS 14%Wt 14%Wt

[0026] Nitrile Rubber 12%Wt 12%Wt

[0027] Substituted Thiourea 3%Wt -

[0028] Amines 2%Wt -

[0029] 1,4-Hydroquinone - 0.2% Wt

[0030] Epoxy Resin - 9.8% Wt

[0031] Cumene Hydroperoxide - 4.6%Wt

[0032] Benzoyl Peroxide - 1.4% Wt.

[0033] Preparation:

[0034] (1) Main agent: put monomethacrylate monomer and methacrylic acid into the reaction kettle, add elastomer, stir until the elastomer is completely dissolved, add epoxy resin, stabilizer, stir evenly, add cumene over Hydrogen peroxide, benzoyl peroxide, stir well.

[0035] (2) Curing agent components: Put monomethacrylate monomer and methacrylic acid into the reaction kettle, add elastomer, stir until the elastomer is completely dissolved, ad...

Embodiment 2

[0040] Proportion Curing agent component Main agent component

[0041] Methyl Methacrylate 53%Wt 54%Wt

[0042] Hydroxyethyl Methacrylate 2.5%Wt -

[0043] Methacrylic acid 11%Wt 4%Wt

[0044] 2-Hydroxyethyl methacrylate phosphate 2.5%Wt -

[0045] MBS 12%Wt 12%Wt

[0046] Nitrile Rubber 14%Wt 12%Wt

[0047] Substituted Thiourea 3%Wt -

[0048] Amines 2%Wt -

[0049] 1,4-Hydroquinone - 0.2% Wt

[0050] Epoxy Resin - 9.8% Wt

[0051] Cumene Hydroperoxide - 4.6%Wt

[0052] Benzoyl Peroxide - 1.4% Wt.

[0053] The preparation method is the same as in Example 1.

[0054] The performance test is the same as in Example 1.

[0055] The test results are shown in Table 1.

Embodiment 3

[0057] Proportion Curing agent component Main agent component

[0058] Methyl Methacrylate 56%Wt 56%Wt

[0059]Hydroxyethyl Methacrylate 3%Wt -

[0060] Methacrylic acid 10%Wt 4%Wt

[0061] 2-Hydroxyethyl methacrylate phosphate 2%Wt -

[0062] MBS 10%Wt 10%Wt

[0063] Nitrile Rubber 14%Wt 14%Wt

[0064] Substituted Thiourea 3%Wt -

[0065] Amines 2%Wt -

[0066] 1,4-Hydroquinone - 0.2% Wt

[0067] Epoxy Resin - 9.8% Wt

[0068] Cumene Hydroperoxide - 4.6%Wt

[0069] Benzoyl Peroxide - 1.4% Wt.

[0070] The preparation method is the same as in Example 1.

[0071] The performance test is the same as in Example 1.

[0072] The test results are shown in Table 1.

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Abstract

The invention discloses a high peel strength acrylate adhesive which belongs to the technical field of two-component acrylate adhesives, and mainly solves the problems that second generation acrylate structural adhesives in the prior art are poor in toughness, and have the peel strength of only 50-100N / 25mm. The high peel strength acrylate adhesive is mainly characterized by including a main agent component which comprises 25 to 60 parts of acrylate monomers containing at least one vinyl, 0 to 25 parts of methacrylic acid, 0 to 25 parts of an elastomer, 5 to 15 parts of epoxy resin, 0.5 to 8 parts of an initiator and 0.1 to 5 parts of a stabilizer; and a curing agent component which comprises 25 to 60 parts of the acrylic monomers containing at least 1 vinyl, 0 to 25 parts of the methacrylic acid, 0 to 25 parts of the elastomer and 1-10 parts of an accelerant. The high peel strength acrylate adhesive is characterized by significantly improving the toughness and the peel strength of the adhesive, the peel strength can reach 200-300N / 25mm, and the high peel strength acrylate adhesive is mainly used as a high peel strength acrylate adhesive.

Description

technical field [0001] The invention belongs to the technical field of two-component acrylate adhesives, in particular to an acrylate adhesive with high peel strength. Background technique [0002] The second-generation acrylate adhesive (SGA) is a two-component room temperature fast-curing adhesive based on methacrylate free radical graft copolymerization. Adhesive, strong adaptability, simple process, because of its excellent comprehensive performance, it has been widely used in the fields of aerospace, automobile, electromechanical, construction and mechanical maintenance. [0003] With the development of modern industrial technology, the requirements for structural bonding continue to increase. Acrylate adhesives are commonly used in structural bonding due to their high shear strength. Ordinary second-generation acrylic structural adhesives usually have a shear strength of 20-30MPa, but because of their poor toughness, the peel strength is only 50-100 N / 25mm, so that i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06
Inventor 刘苏宇韩胜利章锋
Owner HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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