CN108504292B - Bonding method of rubber product - Google Patents

Bonding method of rubber product Download PDF

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CN108504292B
CN108504292B CN201810447006.1A CN201810447006A CN108504292B CN 108504292 B CN108504292 B CN 108504292B CN 201810447006 A CN201810447006 A CN 201810447006A CN 108504292 B CN108504292 B CN 108504292B
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parts
rubber
amount
adhesive
composition
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CN108504292A (en
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胡银
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DONGGUAN SANHO ADHENSIVE MATERIAL Co.,Ltd.
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Dongguan Sanho Adhensive Material Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2421/00—Presence of unspecified rubber
    • C09J2421/006—Presence of unspecified rubber in the substrate

Abstract

The invention relates to a rubber adhesive, and discloses a method for bonding rubber products, wherein the preparation process improves the dispersivity of raw materials in the adhesive, introduces epoxy groups into chloroprene rubber and styrene-butadiene-styrene block copolymer, improves the bonding performance of the adhesive and bonded rubber or plastic, and combines a composition B containing nitroso-fluoro rubber raw rubber, butyl acrylate, a cross-linking agent, magnesium oxide and zinc oxide to obtain the adhesive with stronger viscosity and bonding durability. Moreover, the preparation method of the adhesive is simple, the raw materials are easy to obtain, the adhesion process is easy to control, and the adhesive has high popularization and application values.

Description

Bonding method of rubber product
Technical Field
The invention relates to an adhesive, in particular to a method for bonding rubber products.
Background
Rubber products, in particular rubber shoes, require high adhesive requirements for rubber shoes due to the special characteristics of the use environment, otherwise, the adhesive part between the upper and the sole is easy to crack.
The rubber adhesive is widely applied in the preparation process of rubber products, and the chloroprene rubber adhesive is used as one of the rubber adhesives and is commonly used in adhesives for plastics, but the chloroprene rubber adhesive used in the prior art is usually formed by singly combining chloroprene rubber and a solvent, so that the phenomena of infirm bonding, easy loosening and the like are often caused in the process of bonding rubber products, particularly bonding different rubber products, so that the bonding effect is poor, and the product quality is greatly influenced.
Chinese patent application 201410225215.3 discloses a neoprene adhesive composition, wherein the composition comprises neoprene, a styrene-butadiene-styrene block copolymer, a resorcinol-formaldehyde resin, magnesium oxide, and zinc oxide; relative to 100 parts by weight of chloroprene rubber, the styrene-butadiene-styrene block copolymer is 5-35 parts by weight, the resorcinol-formaldehyde resin is 30-70 parts by weight, the magnesium oxide is 2-8 parts by weight, and the zinc oxide is 2-8 parts by weight. The styrene-butadiene-styrene block copolymer and the resorcinol formaldehyde resin are added into the traditional chloroprene rubber adhesive, so that the prepared adhesive has better adhesive property, and the problem of poor quality of rubber products caused by weak adhesive force of the common chloroprene rubber adhesive to rubber is solved.
However, although the technical scheme overcomes the problem that the single rubber is not firmly bonded in the prior art, the adhesive has strong viscosity but weak durability and is easy to crack in the using process, particularly under the working condition that the temperature exceeds 40 ℃, the bonded part is easy to crack, and the service life of a product using the adhesive is greatly shortened.
Therefore, how to provide an adhesion method which has high viscosity and can improve the adhesion durability is a problem to be solved at present.
Disclosure of Invention
The invention aims to provide a method for bonding rubber products, which applies an adhesive with strong viscosity and lasting viscosity, overcomes the defects of weak viscosity and insufficient lasting viscosity of the adhesive in the prior art, and has the advantages of simple process, easily obtained raw materials and higher popularization and application values.
In order to achieve the above object, the present invention provides a method for bonding rubber articles, comprising the steps of: (1) grinding and dispersing chloroprene rubber and a styrene-butadiene-styrene block copolymer, adding cyclopentane, stirring until the chloroprene rubber and the styrene-butadiene-styrene block copolymer are fully dissolved, then adding peroxybenzoic acid, controlling the reaction temperature, and obtaining a composition A after the reaction is finished; (2) dissolving raw nitroso-fluoro rubber in dimethoxymethane at the mass concentration of 50-60% to prepare a solution, thus obtaining a composition B; (3) mixing the composition A, the composition B, butyl acrylate, a cross-linking agent, magnesium oxide and zinc oxide to obtain a chloroprene rubber adhesive; (4) and coating a chloroprene rubber adhesive on the corresponding clean bonding position, and compacting the corresponding bonding position after 3-5 min.
Through the technical scheme, the preparation process improves the dispersivity of each raw material in the adhesive, introduces epoxy groups into chloroprene rubber and styrene-butadiene-styrene block copolymer, improves the bonding performance of the adhesive and bonded rubber or plastic, and combines a composition B containing nitroso-fluoro rubber raw rubber, butyl acrylate, a cross-linking agent, magnesium oxide and zinc oxide to obtain the adhesive with stronger viscosity and bonding durability. The preparation method of the adhesive is simple, the raw materials are easy to obtain, the adhesion process is easy to control, and the adhesive has high popularization and application values.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
In order to achieve the above object, the present invention provides a method for bonding rubber articles, comprising the steps of: (1) grinding and dispersing chloroprene rubber and a styrene-butadiene-styrene block copolymer, adding cyclopentane, stirring until the chloroprene rubber and the styrene-butadiene-styrene block copolymer are fully dissolved, then adding peroxybenzoic acid, controlling the reaction temperature, and obtaining a composition A after the reaction is finished; (2) dissolving raw nitroso-fluoro rubber in dimethoxymethane at the mass concentration of 50-60% to prepare a solution, thus obtaining a composition B; (3) mixing the composition A, the composition B, butyl acrylate, a cross-linking agent, magnesium oxide and zinc oxide to obtain a chloroprene rubber adhesive; (4) and coating a chloroprene rubber adhesive on the corresponding clean bonding position, and compacting the corresponding bonding position after 3-5 min.
Through the technical scheme, the preparation process improves the dispersivity of each raw material in the adhesive, introduces epoxy groups into chloroprene rubber and styrene-butadiene-styrene block copolymer, improves the bonding performance of the adhesive and bonded rubber or plastic, and combines a composition B containing nitroso-fluoro rubber raw rubber, butyl acrylate, a cross-linking agent, magnesium oxide and zinc oxide to obtain the adhesive with stronger viscosity and bonding durability. Moreover, the preparation method of the adhesive is simple, the raw materials are easy to obtain, the adhesion process is easy to control, and the adhesive has high popularization and application values.
In the above solution, the synthesis of liquid nitroso-fluoro rubber raw rubber is described in patent application 201310133404.3.
In a more preferred embodiment of the present invention, in order to obtain an adhesive having high adhesion and high adhesion durability and to improve the adhesion effect, it is preferable that the styrene-butadiene-styrene block copolymer is used in an amount of 45 to 65 parts by weight, the benzoic acid peroxide is used in an amount of 8 to 12 parts by weight, and the cyclopentane is used in an amount of 80 to 150 parts by weight, based on 100 parts by weight of the chloroprene rubber.
In a more preferred embodiment of the present invention, in order to obtain an adhesive having high adhesion and high adhesion durability and to improve the adhesion effect, the reaction temperature is preferably 80 to 90 ℃ and the reaction time is preferably 40 to 50 min.
In a more preferred embodiment of the present invention, in order to obtain an adhesive having high adhesion and high adhesion durability and to improve the adhesion effect, it is preferable that the amount of the composition B is 50 to 70 parts, the amount of butyl acrylate is 8 to 10 parts, the amount of the crosslinking agent is 20 to 30 parts, the amount of magnesium oxide is 2 to 3 parts, and the amount of zinc oxide is 2 to 3 parts, by mass, relative to 100 parts of the composition a.
In a more preferred embodiment of the present invention, in order to obtain an adhesive with high adhesion and high adhesion durability and improve the adhesion effect, it is preferable that the step (3) further comprises adding an initiator, an anti-aging agent and an antioxidant.
In a more preferred embodiment of the present invention, in order to obtain an adhesive having high adhesion and high adhesion durability and to improve the adhesion effect, it is preferable that the initiator is used in an amount of 0.5 to 1.5 parts by weight, the antioxidant is used in an amount of 0.5 to 2 parts by weight, and the antioxidant is used in an amount of 0.5 to 2.5 parts by weight, based on 100 parts by weight of the composition a.
In a more preferred embodiment of the present invention, in order to obtain an adhesive with strong adhesion and adhesion durability and improve adhesion effect, the initiator is preferably benzoyl peroxide.
In a more preferred embodiment of the present invention, in order to obtain an adhesive having high adhesion and high adhesion durability and to improve the adhesion effect, the antioxidant is preferably dilauryl thiodipropionate and/or distearyl thiodipropionate.
In a more preferred embodiment of the present invention, in order to obtain an adhesive having high adhesion and high adhesion durability and to improve the adhesion effect, the chloroprene rubber is preferably a chloroprene rubber having an elongation at break of 850-.
In a more preferred embodiment of the present invention, in order to obtain an adhesive having high adhesion and high adhesion durability and to improve the adhesion effect, the styrene-butadiene-styrene block copolymer preferably has a relative molecular mass of 15 to 25 ten thousand.
In a more preferred embodiment of the present invention, in order to obtain an adhesive having high adhesion and high adhesion durability and to improve adhesion, it is preferable that the inherent viscosity of the raw nitroso-fluoro rubber is 0.05 to 0.06dLg-1The physical form of the material is liquid form and has room temperature flowability.
In a more preferred embodiment of the present invention, in order to obtain an adhesive having high adhesion and high adhesion durability and to improve the adhesion effect, the crosslinking agent is preferably one or a combination of two or more of organic polyamine, low molecular weight polyetheramine, aziridine, and polycarbodiimide.
The material of the corresponding bonded substrate may be one or more of a rubber bottom, a cowhells bottom, a multi-layer bottom, a foam bottom and a composite bottom, and may also be polyvinyl chloride plastic, rubber and the like, which can achieve the effects of the present invention, and thus, the description thereof is omitted. In the following embodiments, the base material of the corresponding bonding part is rubber.
Through the technical scheme, the preparation process improves the dispersivity of each raw material in the adhesive, introduces epoxy groups into chloroprene rubber and styrene-butadiene-styrene block copolymer, improves the bonding performance of the adhesive and bonded rubber or plastic, and combines a composition B containing nitroso-fluoro rubber raw rubber, butyl acrylate, a cross-linking agent, magnesium oxide and zinc oxide to obtain the adhesive with stronger viscosity and bonding durability. Moreover, the preparation method of the adhesive is simple, the raw materials are easy to obtain, the adhesion process is easy to control, and the adhesive has high popularization and application values. The present invention will be described in detail below by way of examples.
Example 1
A method of bonding rubber articles, the method comprising the steps of:
(1) grinding and dispersing chloroprene rubber and a styrene-butadiene-styrene block copolymer, adding cyclopentane, stirring until the chloroprene rubber and the styrene-butadiene-styrene block copolymer are fully dissolved, then adding peroxybenzoic acid, controlling the reaction temperature to 80 ℃, reacting for 50min, and obtaining a composition A after the reaction is finished; wherein the addition amount of each material is as follows: in parts by weight, relative to 100 parts of chloroprene rubber, the using amount of the styrene-butadiene-styrene block copolymer is 45 parts, the using amount of the peroxybenzoic acid is 8 parts, and the using amount of the cyclopentane is 80 parts;
wherein the chloroprene rubber has elongation at break of 850%, rebound resilience of 60% and hardness of 55Shore A; the relative molecular mass of the styrene-butadiene-styrene block copolymer was 15 ten thousand;
(2) dissolving raw nitroso-fluoro rubber in dimethoxymethane according to the mass concentration of 50% to prepare a solution, thus obtaining a composition B; wherein the inherent viscosity of the raw nitroso-fluoro rubber is 0.05dLg-1The physical form of the material is liquid form and has room temperature flowability;
(3) mixing composition A, composition B, butyl acrylate, aziridine, magnesium oxide, zinc oxide, benzoyl peroxide, hydroquinone and dilauryl thiodipropionate; wherein the adding amount of each material is as follows: based on parts by mass, relative to 100 parts of the composition A, the using amount of the composition B is 50, the using amount of butyl acrylate is 8, the using amount of aziridine is 20, the using amount of magnesium oxide is 2, the using amount of zinc oxide is 2, the using amount of benzoyl peroxide is 0.5, the using amount of hydroquinone is 0.5 and the using amount of dilauryl thiodipropionate is 0.5, so that a chloroprene rubber adhesive is obtained;
(4) and coating a chloroprene rubber adhesive on the corresponding clean bonding position, and pressing the corresponding bonding position after 3 min.
Example 2
A method of bonding rubber articles, the method comprising the steps of:
(1) grinding and dispersing chloroprene rubber and a styrene-butadiene-styrene block copolymer, adding cyclopentane, stirring until the chloroprene rubber and the styrene-butadiene-styrene block copolymer are fully dissolved, then adding peroxybenzoic acid, controlling the reaction temperature to 90 ℃, reacting for 40min, and obtaining a composition A after the reaction is finished; wherein the adding amount of each material is as follows: based on parts by weight, relative to 100 parts of chloroprene rubber, the using amount of the styrene-butadiene-styrene block copolymer is 65 parts, the using amount of the peroxybenzoic acid is 12 parts, and the using amount of the cyclopentane is 150 parts;
wherein the chloroprene rubber has the elongation at break of 1000%, the rebound resilience of 80% and the hardness of 70Shore A; the relative molecular mass of the styrene-butadiene-styrene block copolymer was 25 ten thousand;
(2) dissolving raw nitroso-fluoro rubber in dimethoxymethane at a mass concentration of 60% to prepare a solution, thus obtaining a composition B; wherein the inherent viscosity of the raw nitroso-fluoro rubber is 0.06dLg-1The physical form of the material is liquid form and has room temperature flowability;
(3) mixing composition A, composition B, butyl acrylate, aziridine, magnesium oxide, zinc oxide, benzoyl peroxide, hydroquinone and dilauryl thiodipropionate; wherein the adding amount of each material is as follows: based on parts by mass, relative to 100 parts of the composition A, the using amount of the composition B is 70 parts, the using amount of butyl acrylate is 10 parts, the using amount of aziridine is 30 parts, the using amount of magnesium oxide is 3 parts, the using amount of zinc oxide is 3 parts, the using amount of benzoyl peroxide is 1.5 parts, the using amount of hydroquinone is 2 parts, and the using amount of dilauryl thiodipropionate is 2.5 parts, so that a chloroprene rubber adhesive is obtained;
(4) and coating a chloroprene rubber adhesive on the corresponding clean bonding position, and pressing the corresponding bonding position after 5 min.
Example 3
A method of bonding rubber articles, the method comprising the steps of:
(1) grinding and dispersing chloroprene rubber and a styrene-butadiene-styrene block copolymer, adding cyclopentane, stirring until the chloroprene rubber and the styrene-butadiene-styrene block copolymer are fully dissolved, then adding peroxybenzoic acid, controlling the reaction temperature to 85 ℃, reacting for 45min, and obtaining a composition A after the reaction is finished; wherein the adding amount of each material is as follows: in parts by weight, relative to 100 parts of chloroprene rubber, the using amount of the styrene-butadiene-styrene block copolymer is 55 parts, the using amount of the peroxybenzoic acid is 10 parts, and the using amount of the cyclopentane is 105 parts;
wherein the chloroprene rubber has the elongation at break of 920 percent, the rebound resilience of 70 percent and the hardness of 63Shore A; the relative molecular mass of the styrene-butadiene-styrene block copolymer was 20 ten thousand;
(2) dissolving raw nitroso-fluoro rubber in dimethoxymethane at a mass concentration of 55% to prepare a solution, thereby obtaining a composition B; wherein the inherent viscosity of the raw nitroso-fluoro rubber is 0.055dLg-1The physical form of the material is liquid form and has room temperature flowability;
(3) mixing composition A, composition B, butyl acrylate, aziridine, magnesium oxide, zinc oxide, benzoyl peroxide, hydroquinone and dilauryl thiodipropionate; wherein the adding amount of each material is as follows: in parts by mass, relative to 100 parts of the composition A, the using amount of the composition B is 60 parts, the using amount of butyl acrylate is 9 parts, the using amount of aziridine is 25 parts, the using amount of magnesium oxide is 2.5 parts, the using amount of zinc oxide is 2.5 parts, the using amount of benzoyl peroxide is 1 part, the using amount of hydroquinone is 1.5 parts, and the using amount of dilauryl thiodipropionate is 1.3 parts, so that a chloroprene rubber adhesive is obtained;
(4) and coating a chloroprene rubber adhesive on the corresponding clean bonding position, and pressing the corresponding bonding position after 4 min.
Comparative example 1
A method of bonding rubber articles, the method comprising the steps of:
(1) mixing 50 parts by mass of chloroprene rubber, 30 parts by mass of styrene-butadiene-styrene block copolymer and 60 parts by mass of cyclopentane to obtain a composition A;
wherein the chloroprene rubber has the elongation at break of 1000%, the rebound resilience of 80% and the hardness of 70Shore A; the relative molecular mass of the styrene-butadiene-styrene block copolymer was 25 ten thousand;
(2) dissolving raw nitroso-fluoro rubber in dimethoxymethane at a mass concentration of 60% to prepare a solution, thus obtaining a composition B; wherein the inherent viscosity of the raw nitroso-fluoro rubber is 0.06dLg-1The physical form of the material is liquid form and has room temperature flowability;
(3) mixing composition A, composition B, butyl acrylate, aziridine, magnesium oxide, zinc oxide, benzoyl peroxide, hydroquinone and dilauryl thiodipropionate; wherein the adding amount of each material is as follows: based on parts by mass, relative to 100 parts of the composition A, the using amount of the composition B is 70 parts, the using amount of butyl acrylate is 10 parts, the using amount of aziridine is 30 parts, the using amount of magnesium oxide is 3 parts, the using amount of zinc oxide is 3 parts, the using amount of benzoyl peroxide is 1.5 parts, the using amount of hydroquinone is 2 parts, and the using amount of dilauryl thiodipropionate is 2.5 parts, so that a chloroprene rubber adhesive is obtained;
(4) and coating a chloroprene rubber adhesive on the corresponding clean bonding position, and pressing the corresponding bonding position after 4 min.
Comparative example 2
A method of bonding rubber articles, the method comprising the steps of:
(1) grinding and dispersing chloroprene rubber and a styrene-butadiene-styrene block copolymer, adding cyclopentane, stirring until the chloroprene rubber and the styrene-butadiene-styrene block copolymer are fully dissolved, then adding peroxybenzoic acid, controlling the reaction temperature to 90 ℃, reacting for 40min, and obtaining a composition A after the reaction is finished; wherein the adding amount of each material is as follows: based on parts by weight, relative to 100 parts of chloroprene rubber, the using amount of the styrene-butadiene-styrene block copolymer is 65 parts, the using amount of the peroxybenzoic acid is 12 parts, and the using amount of the cyclopentane is 150 parts;
wherein the chloroprene rubber has the elongation at break of 1000%, the rebound resilience of 80% and the hardness of 70Shore A; the relative molecular mass of the styrene-butadiene-styrene block copolymer was 25 ten thousand;
(2) mixing composition a, butyl acrylate, aziridine, magnesium oxide, zinc oxide, benzoyl peroxide, hydroquinone and dilauryl thiodipropionate; wherein the adding amount of each material is as follows: based on parts by mass, relative to 100 parts of the composition A, the using amount of butyl acrylate is 10 parts, the using amount of aziridine is 30 parts, the using amount of magnesium oxide is 3 parts, the using amount of zinc oxide is 3 parts, the using amount of benzoyl peroxide is 1.5 parts, the using amount of hydroquinone is 2 parts, and the using amount of dilauryl thiodipropionate is 2.5 parts, so that the chloroprene rubber adhesive is obtained;
(3) and coating a chloroprene rubber adhesive on the corresponding clean bonding position, and pressing the corresponding bonding position after 4 min.
Comparative example 3
A method of bonding rubber articles, the method comprising the steps of:
(1) grinding and dispersing chloroprene rubber and a styrene-butadiene-styrene block copolymer, adding cyclopentane, stirring until the chloroprene rubber and the styrene-butadiene-styrene block copolymer are fully dissolved, then adding peroxybenzoic acid, controlling the reaction temperature to 90 ℃, reacting for 40min, and obtaining a composition A after the reaction is finished; wherein the adding amount of each material is as follows: based on parts by weight, relative to 100 parts of chloroprene rubber, the using amount of the styrene-butadiene-styrene block copolymer is 65 parts, the using amount of the peroxybenzoic acid is 12 parts, and the using amount of the cyclopentane is 150 parts;
wherein the chloroprene rubber has the elongation at break of 1000%, the rebound resilience of 80% and the hardness of 70Shore A; the relative molecular mass of the styrene-butadiene-styrene block copolymer was 25 ten thousand;
(2) dissolving raw nitroso-fluoro rubber in dimethoxymethane at a mass concentration of 60% to prepare a solution, thus obtaining a composition B; wherein the inherent viscosity of the raw nitroso-fluoro rubber is 0.06dLg-1The physical form of the material is liquid form and has room temperature flowability;
(3) mixing the composition A, the composition B and butyl acrylate; wherein the adding amount of each material is as follows: based on the mass parts, relative to 100 parts of the composition A, the using amount of the composition B is 70 parts, and the using amount of butyl acrylate is 10 parts, so as to obtain the chloroprene rubber adhesive;
(4) and coating a chloroprene rubber adhesive on the corresponding clean bonding position, and pressing the corresponding bonding position after 4 min.
Detection example 1
The peel strength was measured according to GB/T2791-1995, the sample substrate was rubber, and it was found that the peel strength in comparative examples 1-3 was 3.1-3.8kN/m, the peel strength after 48 hours was 3.5-4.4kN/m, the peel strength decreased by about 10% when left at room temperature for 3 months, and the peel strength of the sample decreased significantly to 1.6-2.4kN/m when left at 68 ℃ for 50 days.
The peel strength was measured according to GB/T2791-1995, the base material of the sample was rubber, and it was found that the peel strength in examples 1-3 was 4.1-4.8kN/m, the peel strength after 48 hours was 5.6-6.5kN/m, and the peel strength was almost unchanged after standing at room temperature for 3 months, but the peel strength of the sample was not significantly decreased when the sample was left at 68 ℃ for 50 days, the range was still 5.8-6.1kN/m, and the maximum decrease was not more than 10%.
Therefore, the adhesive has good bonding strength and good bonding durability, and also has good bonding stability at a temperature as high as 68 ℃, so that the adhesive is very suitable for being used as an adhesive for daily necessities, clothes, shoes and the like.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (9)

1. A method for bonding rubber articles, characterized in that it comprises the following steps:
(1) grinding and dispersing chloroprene rubber and a styrene-butadiene-styrene block copolymer, adding cyclopentane, stirring until the chloroprene rubber and the styrene-butadiene-styrene block copolymer are fully dissolved, then adding peroxybenzoic acid, controlling the reaction temperature, and obtaining a composition A after the reaction is finished;
(2) dissolving raw nitroso-fluoro rubber in dimethoxymethane at the mass concentration of 50-60% to prepare a solution, thus obtaining a composition B;
(3) mixing the composition A, the composition B, butyl acrylate, a cross-linking agent, magnesium oxide and zinc oxide to obtain a chloroprene rubber adhesive;
(4) coating a chloroprene rubber adhesive on the corresponding clean bonding position, and compacting the corresponding bonding position after 3-5 min; wherein, relative to 100 parts of chloroprene rubber, the dosage of the styrene-butadiene-styrene block copolymer is 45-65 parts, the dosage of the peroxybenzoic acid is 8-12 parts, and the dosage of the cyclopentane is 80-150 parts.
2. The method for bonding rubber articles according to claim 1, wherein the reaction temperature is 80 to 90 ℃ and the reaction time is 40 to 50 min.
3. The method for bonding rubber articles according to claim 1, wherein the amount of composition B is 50 to 70 parts, the amount of butyl acrylate is 8 to 10 parts, the amount of crosslinking agent is 20 to 30 parts, the amount of magnesium oxide is 2 to 3 parts, and the amount of zinc oxide is 2 to 3 parts by mass relative to 100 parts of composition A.
4. The method for bonding rubber articles according to any one of claims 1 to 3, wherein the step (3) further comprises adding an initiator, an anti-aging agent and an antioxidant.
5. The method for bonding rubber articles according to claim 4, wherein the amount of said initiator is 0.5 to 1.5 parts by weight, the amount of said age resistor is 0.5 to 2 parts by weight, and the amount of said antioxidant is 0.5 to 2.5 parts by weight, based on 100 parts by mass of composition A.
6. The method for bonding rubber articles according to claim 4, wherein said initiator is benzoyl peroxide;
and/or the anti-aging agent is hydroquinone;
and/or the antioxidant is dilauryl thiodipropionate and/or distearyl thiodipropionate.
7. The method for bonding rubber articles as claimed in claim 4, wherein said chloroprene rubber has an elongation at break of 850-1000%, a rebound resilience of 60-80% and a hardness of 55-70shore A;
and/or the styrene-butadiene-styrene block copolymer has a relative molecular mass of 15 to 25 ten thousand.
8. The method for bonding rubber articles according to claim 4, wherein said nitroso fluorineThe inherent viscosity of the raw rubber is 0.05-0.06dLg-1The physical form of the material is liquid form and has room temperature flowability.
9. The method for bonding rubber products according to claim 4, wherein the crosslinking agent is one or a combination of two or more of an organic polyamine, a low molecular weight polyetheramine, an aziridine, and a polycarbodiimide.
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