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Double-component acrylate structure adhesive for bonding electrophoretic coating materials

An acrylic and electrophoretic coating technology, which is applied in the direction of adhesives, epoxy resin glue, adhesive types, etc., can solve the problems of unsatisfactory bonding strength and process requirements, unsatisfactory bonding effect of electrophoretic coatings, and electrophoretic coatings. Low surface energy characteristics of the coating, etc., to achieve good storage stability at room temperature, improve curing speed and adhesion, high peel strength and shear strength

Active Publication Date: 2014-12-03
TONSAN ADHESIVES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] During the electrophoresis process, on the one hand, due to the directional arrangement of the polymer resin, it has a high degree of regularity, forming a smooth surface, similar to the characteristics of crystalline materials; on the other hand, due to the high temperature curing process, the polymer material is further cross-linked to form a high hardness Dense chemical structure, resulting in low surface energy characteristics of electrophoretic coatings, making it difficult to achieve effective adhesion
[0006] The two-component acrylic structural adhesives on the market have unsatisfactory bonding effects on electrophoretic coatings, mainly reflected in the shortcomings of low bonding strength, long curing time, poor peeling force, and no residual glue on the interface after the bonding surface is damaged. Unable to meet the actual bonding strength and process requirements

Method used

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  • Double-component acrylate structure adhesive for bonding electrophoretic coating materials
  • Double-component acrylate structure adhesive for bonding electrophoretic coating materials
  • Double-component acrylate structure adhesive for bonding electrophoretic coating materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An acrylic structural adhesive, including component A and component B, in parts by mass, the components are as follows:

[0032] A component raw material

number of copies

Methyl methacrylate

45.95

Phenoxyethyl methacrylate

6

epoxy acrylate

10

maleic acid

8

liquid butadiene rubber

10

SIS resin

13

[0033] Polyethylene powder

5

2,6-di-tert-butyl-4-methylphenol

0.05

N,N-Dimethyl-p-toluidine

1

Paraffin

1

[0034] B component raw material

number of copies

Benzoyl peroxide

30

Bisphenol A epoxy resin

40

Dioctyl sebacate

27

fumed silica

2

iron blue

1

[0035] Preparation Process:

[0036] Preparation of component A: Accurately weigh methyl methacrylate, phenoxyethyl methacrylate, maleic acid, and epoxy acrylate and mix evenly; then mix SIS rubber, liquid butadiene r...

Embodiment 2

[0040] An acrylic structural adhesive, including component A and component B, in parts by mass, the components are as follows:

[0041] A component raw material

share

Methyl methacrylate

42

Methacrylate

8

Ethylene glycol dimethacrylate

7

[0042] urethane acrylate

8

Nitrile rubber

10

liquid butadiene rubber

2

Benzyldimethylamine

2

PTFE powder

9.95

p-benzoquinone

0.05

Paraffin

1

[0043] B component raw material

share

Benzoyl peroxide

30

Bisphenol F epoxy resin

30

Dioctyl adipate

36

fumed silica

3

iron blue

1

[0044] Preparation Process:

[0045] Preparation of component A: Accurately weigh methyl methacrylate, methacrylic acid, ethylene glycol dimethacrylate, and urethane acrylate, and mix them evenly; then mix nitrile rubber, liquid butadiene rubber, and poly...

Embodiment 3

[0049] An acrylic structural adhesive, including component A and component B, in parts by mass, the components are as follows:

[0050] A component raw material

share

Methyl methacrylate

43

[0051] Methacrylate

7

Phosphate

1

Phenoxyethyl methacrylate

7

urethane acrylate

8

SBS

10

liquid butadiene rubber

12

N,N-Dimethyl-p-toluidine

1

PTFE powder

9.95

p-benzoquinone

0.05

Paraffin

1

[0052] B component raw material

share

Benzoyl peroxide

30

Bisphenol F epoxy resin

18

Dibutyl phthalate

36

polyethylene wax

15

iron blue

1

[0053] Preparation Process:

[0054] Preparation of component A: Accurately weigh methyl methacrylate, methacrylic acid, phenoxyethyl methacrylate, phosphoric acid ester, and polyurethane acrylate, and mix well; then mix SBS, liquid but...

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Abstract

The invention discloses a double-component acrylate structure adhesive for bonding electrophoretic coating materials and a preparation method of the structure adhesive, belonging to the technical field of adhesives. The structure adhesive is prepared by mixing a component A with a component B according to a volume ratio of 10 : (0.1-2), wherein the component A comprises acrylate monomers, acrylic resin, strongly acidic monomers, non-polar rubber, flexible rubber, non-polar organic particles, an accelerator, a stabilizer and paraffin; the component B comprises an initiator, a plasticizer, a thickener and pigment. The structure adhesive can be used for effectively bonding and quickly curing electrophoretic coatings, is high in stripping strength and shear strength, and has the characteristics of being convenient to apply, good in room-temperature storage stability and the like; the bonding surface destruction form is cohesive failure of an adhesive layer.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a two-component acrylic structural adhesive used for bonding electrophoretic coating materials and a preparation method thereof. Background technique [0002] The second-generation acrylate adhesive is mainly composed of acrylate monomer, resin, rubber, initiator, accelerator and stabilizer. The initiator and accelerator are divided into two components, which can effectively improve storage stability. Acrylic structural adhesives can be used for bonding most metals and plastics, and the bonding effect is excellent. It has many advantages such as fast curing speed, high bonding strength, and easy operation. It can replace traditional welding, riveting, screwing and other processes. Has been widely used in aviation, machinery, electronics, construction, instrumentation, furniture and other industries. [0003] The metal shell of electronic products is generally made ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J153/02C09J163/10C09J109/00C09J175/14C09J109/02C09J127/18C09J111/00C09J123/34C09J11/06C09J11/04
Inventor 李守平李建华何广洲白晗史伟同
Owner TONSAN ADHESIVES INC
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