Acrylate structural adhesive being resistant against solvent scrubbing

A technology of structural adhesives and acrylates, applied in the direction of adhesive additives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve problems such as failure to pass high temperature and high humidity, and decrease in bonding strength. Achieve the effect of smooth glue, good adhesion and good toughness

Inactive Publication Date: 2018-01-19
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the acrylic structural adhesives on the market have a significant decrease in final bonding strength after solvent scrubbing during the above-mentioned assembly process, resulting in failure to pass aging tests such as high temperature and high humidity and salt spray tests in the later stage.

Method used

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  • Acrylate structural adhesive being resistant against solvent scrubbing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A component composition:

[0036] Ethoxylated bisphenol A dimethacrylate: 220 g

[0037] Methyl methacrylate: 280 g

[0038] Hydroxyethyl methacrylate: 120 g

[0039] Methacrylic acid: 100 g

[0040] 2-Hydroxyethyl methacrylate phosphate: 100 g

[0041] Vinyl-terminated nitrile rubber (VTBN): 140 g

[0042] MBS: 260g

[0043] Tetramethylthiourea: 80 g

[0044] N,N-Dimethyl-p-toluidine: 50 g

[0045] Hydroquinone: 8.5 g

[0046] Tetrasodium EDTA: 12 g

[0047] Vinyltris(2-methoxyethoxy)silane: 35 g

[0048] Composition of component B:

[0049] Benzoyl peroxide: 60 g

[0050] Cumene hydroperoxide: 35 g

[0051] E51: 180 g

[0052] Phthalates: 80 g

[0053] Silica powder: 30 g

[0054] Carbon black: 3.5 g

[0055] Concrete preparation steps are:

[0056] The preparation process of component A is to clean the reactor. First add 220g of ethoxylated bisphenol A dimethacrylate, 280g of methyl methacrylate, 120g of hydroxyethyl methacrylate, 100g of methacrylic ...

Embodiment 2

[0059] A component composition:

[0060] Tricyclodecane dimethanol diacrylate: 200 g

[0061] Tetrahydrofuryl methacrylate: 260 g

[0062] Hydroxyethyl methacrylate: 240 g

[0063] Methacrylic acid: 80 g

[0064] 2-Hydroxyethyl methacrylate phosphate: 60 g

[0065] Carboxy-terminated nitrile rubber (CTBN): 150 g

[0066] ABS: 300g

[0067] Vinylthiourea: 46 g

[0068] Aldehyde amine condensation product PDHP: 64 g

[0069] Triphenylphosphine: 15 g

[0070] p-tert-butylcatechol: 10 g

[0071] Tetrasodium EDTA: 12 g

[0072] γ-Mercaptopropyltrimethylsilane: 35 g

[0073] Composition of component B:

[0074] Lauroyl peroxide: 100 g

[0075] Cumene hydroperoxide: 30 g

[0076] E44: 140g

[0077] Parabens : 120 g

[0078] Calcium powder: 40 g

[0079] Fumed silicon: 25 g

[0080] Carbon black: 3.5 g

[0081] Concrete preparation steps are:

[0082] The preparation process of component A is to clean the reactor. First add 200 g of tricyclodecane dimethanol diacry...

Embodiment 3

[0085] A component composition:

[0086] Methyl methacrylate: 360 g

[0087] Tetrahydrofuryl methacrylate: 200 g

[0088] Hydroxypropyl methacrylate: 140 g

[0089] Methacrylic acid: 120 g

[0090] Polybutadiene rubber: 180 g

[0091] ABS: 140g

[0092] SBS: 260g

[0093] Diaminosulfonyl: 60 g

[0094] N,N-Dimethyl-p-toluidine: 70 g

[0095] Triphenylphosphine: 10 g

[0096] p-Naphthoquinone: 10 g

[0097] Tetrasodium EDTA: 14 g

[0098] γ-Mercaptopropyltriethylsilane: 40 g

[0099] Composition of component B:

[0100] Benzoyl peroxide: 130 g

[0101] E51: 60g

[0102] E44: 80g

[0103] Parabens : 100 g

[0104] Calcium powder: 60 g

[0105] Carbon black: 3.5 g

[0106] Concrete preparation steps are:

[0107] The preparation process of component A is to clean the reactor. First add 360g of methyl methacrylate, 200g of tetrahydrofuryl methacrylate, 140g of hydroxypropyl methacrylate, 120g of methacrylic acid, 180g of polybutadiene rubber, 140g of ABS, and 26...

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Abstract

The invention relates to an acrylate structural adhesive being resistant against solvent scrubbing, which includes a component A and a component B; the component A is composed of: an acrylate monomer,methacrylic acid, toughening rubber, toughening filler, an accelerant, a stabilizer and a coupling agent; the component B is composed of: an oxidizing agent, epoxy resin, a plasticizer, filler and pigments. The component A and the component B are uniformly stirred according to the volume ratio of 10:1 to produce the acrylate structural adhesive. The acrylate structural adhesive is resistant against solvent scrubbing, is high in thixotropy and is good in infiltrability on an adhesion interface. In addition, after solidification, an adhesive layer is good in toughness and is high in adhesion force between anodised alumina, Al/Mg alloy, an electrophoresis ED layer, ABS/PC and the like plastic alloy, etc.

Description

technical field [0001] The invention relates to a preparation method of a solvent scrubbing-resistant acrylate structural adhesive, which belongs to the technical field of adhesives. Background technique [0002] Acrylic structural adhesives have the characteristics of fast curing at room temperature, good toughness and high bonding strength, and are widely used in the bonding of structural parts in the electronics and electrical industries. However, in the assembly industry of notebook group structural parts, with the development of the notebook industry becoming more and more lightweight and miniaturized, and the heat dissipation efficiency is continuously improved, the bonding of special structural parts requires the use of solvents ( Such as alcohol, ether, etc.) Thoroughly scrub the spilled residual glue and then heat and press it to cure, otherwise the glue will overflow from the holes of the anodized aluminum plate of the notebook Ccover, affecting the final appearanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/04C09J11/06C09J11/08
Inventor 陈加立王建斌陈田安解海华
Owner YANTAI DARBOND TECH
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