CN111057498A - Novel SBS quaternary grafting adhesive and preparation method thereof - Google Patents

Abstract

The invention provides a novel SBS quaternary grafting adhesive and a preparation method thereof, wherein the adhesive comprises the following components in parts by weight: 95-105 parts of SBS, 500 parts of mixed solvent 400-35 parts of styrene, 38-40 parts of methyl methacrylate, 13-15 parts of butyl acrylate, 0.5-1.5 parts of benzoyl peroxide and 1.0-2.0 parts of acrylic acid. The novel SBS adhesive prepared by the method is convenient and simple to prepare, environment-friendly, pollution-free, easy to obtain raw materials, low in equipment investment, high in purity and convenient to operate, and has the advantages of good using effect, high temperature resistance, viscosity adaptation, safety and reliability.

Description

Novel SBS quaternary grafting adhesive and preparation method thereof

Technical Field

The invention relates to the technical field of chemical industry, in particular to a novel SBS quaternary grafting adhesive and a preparation method thereof.

Background

The adhesive is an important material indispensable for the development of modern industry and the improvement of human living standard, the adhesive and bonding technology adopt a special process incomparable with other connection modes, along with the development of modern industry, higher requirements are put forward on novel adhesives, for example, the development of the modern industry in the fields of wind energy, electronics, LEDs, high-speed rails and the like promotes a plurality of adhesive products, along with the enhancement of modern environmental consciousness and the development of raw materials, the development of the adhesive products is promoted, and some products are eliminated, so that the adhesive has faster development from both yield and variety, in addition, a plurality of new adhesive enterprises are continuously grown, and some foreign large and small enterprises are also put into production at home, therefore, the product information of the adhesive is greatly changed, the original product information is difficult to meet the requirements, and the SBS adhesive is a novel adhesive, however, because the manufacturing process is relatively traditional, the existing amount of the SBS quaternary grafting adhesive on the market is not large, the SBS quaternary grafting adhesive is replaced by a nonstandard alternative adhesive, and the using effect is not scientific and ideal.

Disclosure of Invention

In view of the above, the technical problem to be solved by the present invention is to provide a novel SBS quaternary grafting adhesive with a suitable viscosity, and also to provide a preparation method of the adhesive, which is simple in process.

In order to solve the technical problems, the invention adopts the following technical scheme:

a novel SBS quaternary grafting adhesive comprises the following components in parts by weight:

further, the novel SBS quaternary grafting adhesive comprises the following components in parts by weight:

further, the mixed solvent comprises dimethyl carbonate (DMC), propane and ethyl acetate, and the mass ratio of the dimethyl carbonate to the propane to the ethyl acetate is 12:7: 1.

The preparation method of the novel SBS quaternary grafting adhesive comprises the following steps:

s1, weighing dimethyl carbonate, propane and ethyl acetate, stirring for 30min in a stirring tank, and preparing a mixed solvent required by the reaction for later use;

s2, adding a half of the mixed solvent into a reaction kettle provided with a jacket and a stirrer, and starting a stirring device until the mixed solvent is uniformly stirred;

s3, adding SBS into the reaction kettle, stirring and dissolving, stirring and reacting for 2 hours, and heating to 40 ℃;

s4, adding methyl methacrylate, styrene, butyl acrylate and acrylic acid into the reaction kettle after the reaction is complete, and stirring to react for 30 min;

s5, after the reaction is finished, heating the temperature in the reaction kettle to 60 ℃, adding benzoyl peroxide into the reaction kettle, continuing to react for 2 hours, heating to 70 ℃, and preserving the temperature for 2 hours;

s6, after the reaction is finished, reducing the temperature of the mixture in the reaction kettle to 40 ℃, adding the remaining half of the mixed solvent into the reaction kettle, and stirring and mixing;

and S7, after uniformly stirring, filtering the reaction product in the reaction kettle, and then cooling to obtain the product, namely the novel SBS quaternary grafting adhesive finished product.

The invention has the beneficial effects that: the novel SBS adhesive prepared by the method is convenient and simple to prepare, environment-friendly, pollution-free, easy to obtain raw materials, low in equipment investment, high in purity and convenient to operate, and has the advantages of good using effect, high temperature resistance, viscosity adaptation, safety and reliability. The prepared product can be adjusted to be 3000-20000CPS according to the requirements of customers, can be directly added into automatic coating equipment, and various performances of the product are kept unchanged. The components of the adhesive have no triphenyl solvent system, and can reach the use standard of European Union adhesives, and the high temperature resistance of the cured product can reach 120 ℃.

Detailed Description

In order that those skilled in the art will more clearly and intuitively understand the present invention, the present invention will be further described below.

Example 1

The novel SBS quaternary grafting adhesive comprises the following components in parts by weight:

example 2

The novel SBS quaternary grafting adhesive comprises the following components in parts by weight:

example 3

The novel SBS quaternary grafting adhesive comprises the following components in parts by weight:

the mixed solvent in the above 3 examples all comprises dimethyl carbonate (DMC), propane and ethyl acetate, and the mass ratio of dimethyl carbonate to propane to ethyl acetate is 12:7: 1.

Example 4

The preparation method of the novel SBS quaternary grafting adhesive of the embodiment 1-3 comprises the following steps:

s1, weighing dimethyl carbonate, propane and ethyl acetate, stirring for 30min in a stirring tank, and preparing a mixed solvent required by the reaction for later use;

s2, adding a half of the mixed solvent into a reaction kettle provided with a jacket and a stirrer, and starting a stirring device until the mixed solvent is uniformly stirred;

s3, adding SBS into the reaction kettle, stirring and dissolving, stirring and reacting for 2 hours, and heating to 40 ℃;

s4, adding methyl methacrylate, styrene, butyl acrylate and acrylic acid into the reaction kettle after the reaction is complete, and stirring to react for 30 min;

s5, after the reaction is finished, heating the temperature in the reaction kettle to 60 ℃, adding benzoyl peroxide into the reaction kettle, continuing to react for 2 hours, heating to 70 ℃, and preserving the temperature for 2 hours;

s6, after the reaction is finished, reducing the temperature of the mixture in the reaction kettle to 40 ℃, adding the remaining half of the mixed solvent into the reaction kettle, and stirring and mixing;

and S7, after uniformly stirring, filtering the reactants in the reaction kettle, cooling to obtain a product, namely the novel SBS quaternary grafting adhesive finished product, packaging the product, and warehousing.

The prepared product can be adjusted to be 3000-20000CPS according to the requirements of customers, can be directly added into automatic coating equipment, and various performances of the product are kept unchanged. The components of the adhesive have no triphenyl solvent system, and can reach the use standard of European Union adhesives, and the high temperature resistance of the cured product can reach 120 ℃.

The embodiments described above are presented to enable those skilled in the art to make and use the invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make improvements and modifications to the present invention based on the disclosure of the present invention within the protection scope of the present invention.

Claims (4)

1. A novel SBS quaternary grafting adhesive is characterized by comprising the following components in parts by weight:

2. a novel SBS quaternary grafting adhesive is characterized by comprising the following components in parts by weight:

3. the novel SBS quaternary grafting adhesive according to claim 1 or 2, wherein the mixed solvent comprises dimethyl carbonate, propane and ethyl acetate, and the mass ratio of dimethyl carbonate to propane to ethyl acetate is 12:7: 1.

4. The preparation method of the novel SBS quaternary grafting adhesive according to claim 3, wherein the preparation method comprises the following steps:

s1, weighing dimethyl carbonate, propane and ethyl acetate, stirring for 30min in a stirring tank, and preparing a mixed solvent required by the reaction for later use;

s2, adding a half of the mixed solvent into a reaction kettle provided with a jacket and a stirrer, and starting a stirring device until the mixed solvent is uniformly stirred;

s3, adding SBS into the reaction kettle, stirring and dissolving, stirring and reacting for 2 hours, and heating to 40 ℃;

s4, adding methyl methacrylate, styrene, butyl acrylate and acrylic acid into the reaction kettle after the reaction is complete, and stirring to react for 30 min;

s5, after the reaction is finished, heating the temperature in the reaction kettle to 60 ℃, adding benzoyl peroxide into the reaction kettle, continuing to react for 2 hours, heating to 70 ℃, and preserving the temperature for 2 hours;

s6, after the reaction is finished, reducing the temperature of the mixture in the reaction kettle to 40 ℃, adding the remaining half of the mixed solvent into the reaction kettle, and stirring and mixing;

and S7, after uniformly stirring, filtering the reaction product in the reaction kettle, and then cooling to obtain the product, namely the novel SBS quaternary grafting adhesive finished product.