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Method for preparing moisture-cured multi-grafted solvent type adhesive

A moisture-curing, solvent-based technology, applied in the direction of graft polymer adhesives, adhesive types, adhesive additives, etc., can solve the international mainstream that does not meet environmental protection, poor bonding effect of non-polar materials, It is not suitable for bonding polar materials and other problems, and achieves the effect of simple and novel preparation process, short reaction time and improved bonding strength

Active Publication Date: 2012-11-21
力森诺科材料(无锡)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adhesives that are effective for bonding polar materials are extremely poor for bonding non-polar materials, and adhesives that are suitable for bonding non-polar materials are not suitable for bonding polar materials; With the development of the automotive material industry and the diversification of materials for automotive interior parts, the bonding between polar materials and non-polar materials has become a development trend. Traditional adhesives are obviously no longer able to meet the needs of automotive interiors. Adhesives with good adhesion to both polar substrates and non-polar substrates are urgently needed
On the other hand, traditional solvent-based adhesives mostly use toxic substances such as benzene as solvents. The process of production and use is harmful to the human body and does not conform to the international mainstream of environmental protection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Prepare the moisture-curing multi-component grafting solvent-based adhesive according to the following steps:

[0044] (1) Add 31.00g MCH and 10.00gMMA to a reaction kettle with a stirrer and a condenser, stir evenly, add 8.00g CR rubber (brand A-90) and 1.50g SBS rubber (brand 3206), and heat up to 70℃~80℃, stir at this temperature until a transparent liquid A is obtained;

[0045] (2) Add 0.06g benzoyl peroxide (brand BPO-50) in transparent clear liquid A, stir 10 minutes, obtain mixed solution I;

[0046] (3) 0.27g GMA, 0.14g AM and 4.90g MMA were dissolved in 2.97g MCH to obtain solution B;

[0047] (4) Add solution B dropwise to mixed solution I at a rate of 1 drop / 6 seconds, and control the temperature at 82°C to 87°C. After adding solution B, continue stirring for 90 minutes at this temperature to obtain mixed solution II;

[0048] (5) 8.75g of petroleum resin, 1.15g of terpene resin, 0.20g of antioxidant 1010, and 0.20g of antioxidant A-168 were dissolved in ...

Embodiment 2

[0063] Prepare the adhesive as follows:

[0064] (1) Add 31.00g MCH and 10.00gMMA to a reaction kettle with a stirrer and a condenser, stir evenly, add 8.00g CR rubber (brand A-90) and 1.50g SBS rubber (brand 3206), and heat up to 60℃~70℃, stir at this temperature until a transparent liquid A is obtained;

[0065] (2) Add 0.06g benzoyl peroxide (brand BPO-50) in transparent clear liquid A, stir 10 minutes, obtain mixed solution I;

[0066] (3) 0.27g GMA, 0.14g AM and 4.90g MMA were dissolved in 2.97g MCH to obtain solution B;

[0067] (4) Add solution B dropwise to mixed solution I at a rate of 1 drop / 6 seconds, and control the temperature at 82°C to 87°C. After adding solution B, continue stirring for 90 minutes at this temperature to obtain mixed solution II;

[0068] (5) 8.75g of petroleum resin, 1.15g of terpene resin, 0.20g of antioxidant 1010, and 0.20g of antioxidant A-168 were dissolved in a mixed solvent of 17.00g of ethyl acetate and 8.00g of butanone to obtain so...

Embodiment 3

[0082] (1) Add 31.00g MCH and 10.00gMMA to the reactor with agitator and condenser, stir well and add 8.00g CR rubber (brand A-90) and 1.50g SBS / SIS rubber (brand 3206), Raise the temperature to 70°C-80°C, and stir at this temperature until a transparent liquid A is obtained;

[0083] (2) Add 0.06g benzoyl peroxide (brand BPO-50) in transparent clear liquid A, stir 10 minutes, obtain mixed solution I;

[0084] (3) 0.27g GMA, 0.14g AM and 4.90g MMA were dissolved in 2.97g MCH to obtain solution B;

[0085] (4) Add solution B dropwise to mixed solution I at a rate of 1 drop / 3 seconds, and control the temperature at 82°C to 87°C. After adding solution B, continue stirring for 90 minutes at this temperature to obtain mixed solution II;

[0086] (5) 8.75g of petroleum resin, 1.15g of terpene resin, 0.20g of antioxidant 1010, and 0.20g of antioxidant A-168 were dissolved in a mixed solvent of 17.00g of ethyl acetate and 8.00g of butanone to obtain solution C;

[0087] (6) Add sol...

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Abstract

The invention discloses a method for preparing a moisture-cured multi-grafted solvent type adhesive. Rubber and a styrene type thermoplastic elastomer form a skeleton, and under the initiation of BPO, monomers methyl methacrylate (MMA), methacrylamide (AM) and glycidyl methacrylate (GMA) are grafted to a carbon doublebond of the skeleton, thereby changing the polarity of the adhesive with the modification of the monomers; and a silane coupling agent and epoxy groups undergo a cross linking reaction through silane to form three-dimensional net working so as to fulfill the aim of moisture curing, and enhance the bond strength and heat resistance of the adhesive. The moisture-cured multi-grafted solvent type adhesive prepared by using the method of the invention does not contain any toxic substance, such as benzene and the like, threatening human health, has high component stability, is secure and environmentally-friendly, simultaneously has high bonding power for polar materials and nonpolar materials, can bond a plurality of materials, such as rubber, leather, fabrics, foam, PVC leather, PU leather, plastics, colored printed product surface mount plastics and the like, and is widely applied to the vehicle material market and footwear industry.

Description

technical field [0001] The invention belongs to the field of adhesives, in particular to a method for preparing a moisture-cured multi-component grafting solvent-based adhesive. Background technique [0002] With the improvement of people's living standards and the rapid development of the automobile industry, people pay more and more attention to the interior decoration of automobiles. The interior decoration has become the most important area for people to show their taste and individuality besides housing decoration, which also promotes the automobile industry. The rapid development of the interior parts industry. Adhesives are an important medium for bonding various automotive interior parts to automotive substrates. Commonly used adhesives mainly include neoprene (CR) series adhesives and styrene thermoplastic elastomer series adhesives. Neoprene series adhesives have good bonding effect on polar substrates such as polyvinyl chloride (PVC), acrylonitrile-butadiene-styr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J151/04C09J151/06C09J11/06
Inventor 从赫雷赖建成
Owner 力森诺科材料(无锡)有限公司
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