CN102241953A

CN102241953A - Preparation method of phenolic resin-chloroprene rubber adhesive

Info

Publication number: CN102241953A
Application number: CN2010101686119A
Authority: CN
Inventors: 张苏侠
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-11
Filing date: 2010-05-11
Publication date: 2011-11-16

Abstract

The invention discloses a preparation method of a phenolic resin-chloroprene rubber adhesive. The phenolic resin-chloroprene rubber adhesive is prepared by dissolving phenolic resin and chloroprene rubber into a solvent and adding other auxiliary materials and characterized by strong initial viscous force, high bonding strength, good durability, soft adhesive layer, good elasticity, impact and shake resistance, good oil, water, alkali, acid and solvent resistance properties and convenience for use. The adhesive is mainly applied to bonding artificial leathers, synthetic leathers, plastics, nylons and organic glasses and is also suitable for the shoe-making industry. According to the adhesive, a novel substantially nontoxic solvent is adopted. The phenolic resin-chloroprene rubber adhesive is mainly prepared from a mixed solvent containing 60% of gasoline and 40% of ethyl ester, chloroprene rubber, methyl methacrylate, benzoyl peroxide, novel environment-friendly phenolic resin, cyclohexanone, terpene resin and barium stearate.

Description

A kind of preparation method of resol-neoprene adhesive

Affiliated technical field:

Product of the present invention belongs to chemical field.Be specifically related to a kind of preparation method of resol-neoprene adhesive.

Background technology:

Chloroprene rubber is a kind of by mass-produced synthetic rubber compound, and the adhesive applications scope of making is wide.Chloroprene rubber is divided into anionic and non-ionic type two classes, and the anionic chloroprene rubber has multiple model, selects for use for various gluing purposes; Non-ionic type is the multipolymer of chloroprene and methacrylic acid, good stability, carboxyl functional group is arranged, the texture ratio of chloroprene rubber is more regular, the bigger chlorine atom of polarity is arranged, so the crystallinity height again, it at room temperature just has adhesiveproperties and bigger cohesive strength preferably, suit very much to make tackiness agent, the chloroprene rubber adhesive agent characteristic is: initial viscous force is big, the bonding strength height, good endurance, glue-line is pliable and tough, and elasticity is good, shock-resistant with the vibration, oil resistant is preferably arranged, water-fast, alkaline-resisting, acidproof, solvent resistance all has cementability preferably to multiple material, and is easy to use, cheap, but thermotolerance is relatively poor, and winter hardiness is not good, and package stability is poor.Old product is to be the tackiness agent that solvent is produced with raw materials such as benzene,toluene,xylenes, though low, the better performances of cost is arranged, toxicity is bigger, particularly is that the solvent tackiness agent performance of producing is best with benzene, but the toxicity maximum.Relatively poor in order to overcome traditional chloroprene rubber adhesive agent thermotolerance, winter hardiness is not good, package stability is poor, shortcomings such as toxicity is big, by improving prescription, add resol, do not use the benzene class to make solvent, thereby produce a kind of novel phenolic resins-neoprene adhesive, novel dissolvent is used in this agent, and is nontoxic substantially, performance is better than single neoprene adhesive, overcome some shortcomings of single neoprene adhesive, this agent is mainly used in the bonding of leatheroid, synthetic leather, plastics, nylon, synthetic glass, also is applicable to shoe-making industry.To compare production cost slightly high but with using benzene to produce tackiness agent as solvent.

Summary of the invention:

Product of the present invention is a kind of multi-purpose adhesive commonly used, this product is dissolved in the solvent by resol and chloroprene rubber and makes, the characteristics of this agent are that initial viscous force is big, bonding strength is high, good endurance, glue-line are pliable and tough, elasticity is good, shock-resistant with the vibration, oil resistant, water-fast, alkaline-resisting, acidproof, solvent resistance are preferably arranged, multiple material is all had cementability preferably, and it is easy to use, nontoxic.Be mainly used in the bonding of leatheroid, synthetic leather, plastics, nylon, synthetic glass, also be applicable to shoe-making industry.The raw material of producing this tackiness agent use has: 40 parts of the mixed solvents of gasoline 60%, ethyl ester 40%; 20 parts of chloroprene rubbers; 10 parts of methyl methacrylates; 4 parts of benzoyl peroxides; 20 parts in the new resol of environment-friendly type; 3 parts of pimelinketone; 2 parts of terpine resins; 1 part of barium stearate.

Product resol-neoprene adhesive of the present invention is a kind of tackiness agent that uses the novel dissolvent preparation, and the product advantage that this preparation method produces is: technology is simple, effective, nontoxic, is the good multi-purpose adhesive of a kind of result of use.

Embodiment:

The first step: the mixed solvent of gasoline 60%, ethyl ester 40% is sent into chemical reaction kettle for 40 parts, start agitator, rotating speed is 30 rev/mins, and temperature is increased to 70 ℃, adds 20 parts of chloroprene rubbers slowly, is stirred to whole dissolvings, reacts 1 hour.

Second step: keep temperature-resistant, add 10 parts of methyl methacrylates; 4 parts of benzoyl peroxides are stirred to whole dissolvings, react 3 hours.

The 3rd step: keep temperature-resistant, slowly add 20 parts in the new resol of environment-friendly type; 3 parts of pimelinketone, stirring reaction 4 hours.

The 4th step: be cooled to normal temperature, add 2 parts of terpine resins, stirring reaction 0.5 hour adds 1 part of barium stearate again, and stirring reaction 0.5 hour obtains finished product.

Claims

1. the preparation method of a resol-neoprene adhesive is characterized in that with 40 parts of the mixed solvents of gasoline 60%, ethyl ester 40%; 20 parts of chloroprene rubbers; 10 parts of methyl methacrylates; 4 parts of benzoyl peroxides; 20 parts in the new resol of environment-friendly type; 3 parts of pimelinketone; 2 parts of terpine resins; Barium stearate is a raw material for 1 part, makes finished product by following reaction.

2. the preparation method of a kind of resol-neoprene adhesive according to claim 1, the feature of its first step is: the mixed solvent of gasoline 60%, ethyl ester 40% is sent into chemical reaction kettle for 40 parts, start agitator, rotating speed is 30 rev/mins, temperature is increased to 70 ℃, add 20 parts of chloroprene rubbers slowly, be stirred to whole dissolvings, reacted 1 hour.

3. the preparation method of a kind of resol-neoprene adhesive according to claim 1, the feature in its second step is: keeps temperature-resistant, 10 parts of adding methyl methacrylates; 4 parts of benzoyl peroxides are stirred to whole dissolvings, react 3 hours.

4. the preparation method of a kind of resol-neoprene adhesive according to claim 1, the feature in its 3rd step is: keep temperature-resistant, slowly add 20 parts in the new resol of environment-friendly type; 3 parts of pimelinketone, stirring reaction 4 hours.

5. the preparation method of a kind of resol-neoprene adhesive according to claim 1, the feature in its 4th step is: be cooled to normal temperature, add 2 parts of terpine resins, stirring reaction 0.5 hour, add 1 part of barium stearate again, stirring reaction 0.5 hour obtains finished product.