阅读说明：本技术 一种手持用快速粘接胶黏剂 (Handheld quick-bonding adhesive ) 是由 戴时钧 缪静 刘发龙 于 2019-11-04 设计创作，主要内容包括：本发明涉及一种手持用快速粘接胶黏剂,其特征在于,包括重量比为1:0.10～0.15的A组分和B组分；其中,所述B组分含有30wt％的α－氰基丙烯酸乙酯和70wt％胺类固化剂；所述A组分含有,乳化环氧树脂50-70wt％、蓖麻油15-30wt％、改性剂5-10wt％、增稠剂3-5wt％、润湿剂5-15wt％。(The invention relates to a handheld quick-bonding adhesive which is characterized by comprising a component A and a component B in a weight ratio of 1: 0.10-0.15; wherein the component B contains 30 wt% of alpha-ethyl cyanoacrylate and 70 wt% of amine curing agent; the component A comprises 50-70 wt% of emulsified epoxy resin, 15-30 wt% of castor oil, 5-10 wt% of modifier, 3-5 wt% of thickener and 5-15 wt% of wetting agent.)

1. A handheld quick-bonding adhesive is characterized by comprising a component A and a component B in a weight ratio of 1: 0.10-0.15;

wherein the content of the first and second substances,

the component B contains 30 weight percent of alpha-ethyl cyanoacrylate and 70 weight percent of amine curing agent;

the component A comprises the components of (A) and (B),

50-70 wt% of emulsified epoxy resin, 15-30 wt% of castor oil, 5-10 wt% of modifier, 3-5 wt% of thickener and 5-15 wt% of wetting agent.

2. The hand-held quick-bonding adhesive according to claim 1, which is characterized in that: the epoxy resin is any one of 4, 4' -dihydroxy diphenyl sulfone diglycidyl ether epoxy resin, phloroglucinol triglycidyl ether epoxy resin and p-aminophenol epoxy resin.

3. The hand-held quick-bonding adhesive according to claim 1, which is characterized in that: the modifier is any one of polysorbate-80 and isomeric tridecanol polyoxyethylene ether compounds.

4. The hand-held quick-bonding adhesive according to claim 1, which is characterized in that: the thickening agent is a high-molecular water-soluble thickening agent, an acrylate emulsion or a mixture thereof.

5. The hand-held quick-bonding adhesive according to claim 1, which is characterized in that: the humectant is propylene glycol, glycerin or a mixture thereof.

6. The hand-held quick-bonding adhesive according to claim 1, which is characterized in that: the castor oil is particles with the diameter of 1-2 mm.

7. The hand-held quick-bonding adhesive according to claim 1, which is characterized in that: the amine curing agent is any one of aliphatic amine curing agent, polyether amine curing agent, polyamide curing agent and aromatic amine curing agent.

8. The preparation method of the hand-held quick-bonding adhesive according to claims 1 to 6, characterized by comprising the following steps:

s1, emulsifying the epoxy resin by a low-energy emulsification method;

s2, preparing castor oil, namely placing the castor oil into carbon dioxide supercritical fluid for extraction, and removing water in the castor oil;

s3, preparing the component A, and stirring and mixing the emulsified epoxy resin, the castor oil, the modifier, the thickener and the wetting agent.

S4, preparing a component B, namely mixing and stirring alpha-ethyl cyanoacrylate and an amine curing agent under the anhydrous vacuum condition to prepare the component B;

s5, preparing an adhesive, namely mixing the component A and the component B in proportion under a low-temperature anhydrous condition to prepare the adhesive.

Technical Field

The invention relates to the technical field of adhesives, in particular to an adhesive for bonding glass and ABS plastic.

Background

With the successive proposition of various adhesion theories in the middle of the 20 th century and the deep progress of basic research works such as adhesive chemistry, adhesive rheology, adhesive failure mechanism and the like, the performance, variety and application of the adhesive have been developed dramatically and rapidly.

The TP screen and the plastic frame are connected and bonded by the handheld adhesive, so that the bonding time is short, the curing effect is good, the adhesive resists moisture, humidity and high temperature, and the adhesive has flexible and excellent thermal cycle and adhesive force.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a handheld quick-bonding adhesive.

The technical scheme of the invention is as follows:

a handheld quick-bonding adhesive is characterized by comprising a component A and a component B in a weight ratio of 1: 0.10-0.15;

wherein the content of the first and second substances,

the component B contains 30 weight percent of alpha-ethyl cyanoacrylate and 70 weight percent of amine curing agent;

the component A comprises the components of (A) and (B),

50-70 wt% of emulsified epoxy resin, 15-30 wt% of castor oil, 5-10 wt% of modifier, 3-5 wt% of thickener and 5-15 wt% of wetting agent.

Further, the epoxy resin is any one of 4, 4' -dihydroxy diphenyl sulfone diglycidyl ether epoxy resin, phloroglucinol triglycidyl ether epoxy resin and p-aminophenol epoxy resin.

The modifier is any one of polysorbate-80 and isomeric tridecanol polyoxyethylene ether compounds.

Further, the thickening agent is a high molecular water-soluble thickening agent, an acrylate emulsion or a mixture thereof.

Further said humectant is propylene glycol, glycerin or mixtures thereof.

Further the castor oil is particles with a diameter of 1-2 mm.

The amine curing agent is any one of aliphatic amine curing agent, polyether amine curing agent, polyamide curing agent and aromatic amine curing agent.

A preparation method of a handheld quick-bonding adhesive is characterized by comprising the following steps:

s1, emulsifying the epoxy resin by a low-energy emulsification method;

s2, preparing castor oil, namely placing the castor oil into carbon dioxide supercritical fluid for extraction, and removing water in the castor oil;

s3, preparing the component A, and stirring and mixing the emulsified epoxy resin, the castor oil, the modifier, the thickener and the wetting agent.

S4, preparing a component B, namely mixing and stirring alpha-ethyl cyanoacrylate and an amine curing agent under the anhydrous vacuum condition to prepare the component B;

s5, preparing an adhesive, namely mixing the component A and the component B in proportion under a low-temperature anhydrous condition to prepare the adhesive.

By the scheme, the invention at least has the following advantages:

compared with the epoxy resin adhesive sold on the market, the adhesive for quick bonding provided by the invention has the advantages that the curing time is short, and the adhesive has certain elasticity; the component B uses alpha-ethyl cyanoacrylate and an amine curing agent, the alpha-ethyl cyanoacrylate can contact with moisture in the air during the adhesive bonding process to perform the curing reaction immediately, and a certain amount of heat is emitted at the same time, and the heat can accelerate the curing of the adhesive; the castor oil is added into the component A, so that the influence of water vapor on glue is avoided, the castor oil contains 70% of trifunctional degree and 30% of bifunctional degree according to the calculation of hydroxyl group, the average functionality degree of the hydroxyl group is 2.7, and the polyurethane adhesive prepared by taking the castor oil as a raw material has better low-temperature performance, hydrolysis resistance and excellent electrical insulation.

The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.

Detailed Description

The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

A handheld quick-bonding adhesive is characterized by comprising a component A and a component B in a weight ratio of 1: 0.10-0.15;

wherein the content of the first and second substances,

the component B contains 30 weight percent of alpha-ethyl cyanoacrylate and 70 weight percent of amine curing agent;

the component A comprises the components of (A) and (B),

50-70 wt% of emulsified epoxy resin, 15-30 wt% of castor oil, 5-10 wt% of modifier, 3-5 wt% of thickener and 5-15 wt% of wetting agent.

-the epoxy resin is any one of 4, 4' -dihydroxydiphenylsulfone diglycidyl ether epoxy resin, phloroglucinol triglycidyl ether epoxy resin and p-aminophenol epoxy resin.

-the modifier is any one of polysorbate-80 and isomeric tridecanol polyoxyethylene ether compounds.

-the thickener is a polymeric water soluble thickener, an acrylate emulsion or a mixture thereof.

-the humectant is propylene glycol, glycerin or a mixture thereof.

-said castor oil is in the form of particles having a diameter of 1-2 mm.

-the amine curing agent is any one of aliphatic amine curing agent, polyether amine curing agent, polyamide curing agent and aromatic amine curing agent.

A preparation method of a handheld quick-bonding adhesive is characterized by comprising the following steps:

s1, emulsifying the epoxy resin by a low-energy emulsification method;

s2, preparing castor oil, namely placing the castor oil into carbon dioxide supercritical fluid for extraction, and removing water in the castor oil;

s3, preparing the component A, and stirring and mixing the emulsified epoxy resin, the castor oil, the modifier, the thickener and the wetting agent.

S4, preparing a component B, namely mixing and stirring alpha-ethyl cyanoacrylate and an amine curing agent under the anhydrous vacuum condition to prepare the component B;

s5, preparing an adhesive, namely mixing the component A and the component B in proportion under a low-temperature anhydrous condition to prepare the adhesive.

The weight portions are as follows: