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Acrylate adhesive and preparation method thereof

A technology of acrylate and adhesive, applied in the direction of adhesives, adhesive types, nitrile copolymer adhesives, etc., can solve the problems of easy self-polymerization, unstable components, and the failure of this glue, so as to achieve no violent heat generation or Effect of implosion, slow curing speed adjustable, mild curing process

Inactive Publication Date: 2005-09-21
张恩天
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fast curing brings a lot of convenience to the use, but if the amount of one application exceeds 10g, it is prone to violent exotherm or explosion during curing, which makes it impossible to prepare a large amount of this glue at one time or even for potting and pouring
In addition, the room temperature fast-curing adhesive still has the following defects that need to be solved urgently: the storage period at room temperature is short; during storage, the components containing peroxides are unstable and easy to self-polymerize.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Preparation of modified aromatic amines

[0021] Add 80g of ethanol to a clean 250ml flask, then add 1 mole of p-methylaniline and 0.5g of 2,4,6 tris(dimethylaminomethyl)phenol (DMP-30), and keep stirring at a temperature of 10°C. With stirring, 1 mole of propylene oxide was added dropwise within 10 minutes, then the flask was sealed, and the reactant was allowed to stand overnight at room temperature. The next day, put the flask into a water bath, add a reflux condenser on the top of the flask, first react at 60°C for 1 hour, and then distill ethanol out under normal pressure at a water temperature of 100°C until the liquid in the flask no longer boils and a yellow color is obtained. Oily liquid, waxy solid obtained after cooling is modified p-methylaniline, with a weight of 132g.

[0022] 2, the preparation of acrylate adhesive of the present invention

[0023] Preparation of component A: Dissolve 100g of MMA, 27.5g of ABS and 2g of modified p-methylaniline toget...

Embodiment 2

[0029] 1. Preparation of modified aromatic amines

[0030] Add 150g of ethanol to a clean 250ml flask, then add 1 mole of p-hydroxyaniline and 1g of ethylenediamine, drop in 1 mole of epichlorohydrin within 10 minutes under constant stirring at a temperature of 25°C, and then seal the flask , and the reaction was allowed to stand overnight at room temperature. The next day, put the flask into a water bath, add a reflux condenser on the top of the flask, first react at 65°C for 1 hour, and then distill ethanol out under normal pressure at a water temperature of 80°C until the liquid in the flask no longer boils and a yellow color is obtained. Oily liquid, the waxy solid that obtains after cooling is modified p-hydroxyaniline, and the weight is 145g.

[0031] 2, the preparation of acrylate adhesive of the present invention

[0032] Preparation of component A: Dissolve 80g of MMA, 20g of ABS and 1g of modified p-hydroxyaniline;

[0033] Preparation of component B: Mix 3g of 2-...

Embodiment 3

[0038] 1. Preparation of modified aromatic amines

[0039] Add 110g of ethanol to a clean 250ml flask, then add 1 mole of aniline and 1g of 2,4,6 tris(dimethylaminomethyl)phenol (DMP-30), keep stirring at 15°C for 10 1 mole of propenyl glycidyl ether was added dropwise within 1 minute, then the flask was sealed, and the reactants were allowed to stand overnight at room temperature. The next day, put the flask into a water bath, add a reflux condenser on the top of the flask, first react at 62°C for 1 hour, and then distill ethanol at a water temperature of 100°C under normal pressure until the liquid in the flask no longer boils and a yellow color is obtained. Oily liquid, the waxy solid that obtains after cooling is modified aniline, and the weight is 135g.

[0040] 2, the preparation of acrylate adhesive of the present invention

[0041] Preparation of component A: Dissolve 120g of MMA, 30g of ABS and 4g of modified aniline together;

[0042] Preparation of component B: M...

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Abstract

The invention discloses a new acrylic ester adhesive agent, which comprises the following two components A and B in the weight proportion of A of 90-120 shears and of B of 2-40 shears, wherein, the said component A is made of the following raw materials in weight proportion of methyl methacrylate of 80-120 shears, acrylonitrile-butadiene-styrene of 20-35 shears and modified arylamine of 1-4 shears, the said component B is made of the following raw materials in weight proportion of benzoyl peroxide of 5-15 shears, methacrylic acid of 5-15 shears and talcum powder of 10-30 shears. The acrylic ester adhesive agent in the invention cures mildly and stably in room temperature and disappears the phenomenons vigorous heat release or imploding detonation when the curing time in room temperature is controlled in 10-90 min and the one-time dosage is lass than 10 g. The shelf life of the said acrylic ester adhesive agent in room temperature can reach more than half a year.

Description

technical field [0001] The invention relates to an adhesive, in particular to an acrylate adhesive and a preparation method thereof, belonging to the field of chemical industry. Background technique [0002] Most of the commonly used and popular second-generation acrylate adhesives (SGA) of type A and B on the market are fast-curing at room temperature, and the curing time at room temperature is mostly in the range of 1 minute to 15 minutes. Rapid curing brings a lot of convenience to use, but if the amount of application exceeds 10g at one time, it is prone to violent exotherm or explosion during curing, which makes it impossible for this glue to be formulated and used in large quantities at one time or even used for potting and pouring. In addition, the room temperature fast curing adhesive still has the following defects that need to be solved urgently: the storage period at room temperature is short; during storage, the components containing peroxides are unstable and ea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J133/20
Inventor 张恩天
Owner 张恩天
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