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Nano chlorobutadiene rubber adhesive and preparation method thereof0}

An adhesive, neoprene technology, applied in the direction of chloroprene adhesives, adhesives, adhesive types, etc., can solve the problems of poor storage stability, low production efficiency, and high energy consumption of neoprene adhesives, and achieve peel strength. High, improve production efficiency, good brushability

Active Publication Date: 2010-12-22
HUNAN SHENLI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepared neoprene adhesive has poor storage stability, is easy to delaminate, and has low bonding strength
[0003] The traditional chloroprene adhesive production method is to use a rubber mixer to plasticize and mix the film to reduce the relative molecular weight and improve solubility. This method consumes high energy, is labor-intensive, and has low production efficiency.

Method used

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  • Nano chlorobutadiene rubber adhesive and preparation method thereof0}

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A. Preparation of pre-reaction solution

[0035] Put 10 parts of toluene and 7.5 parts of cyclohexane into a high-speed disperser, start stirring, set the speed at 100 rpm, add 9 parts of phenolic resin, dissolve for 2 hours, increase the speed to 3000 rpm, and slowly Add 2 parts of nano-magnesium oxide and 0.5 part of catalyst, stir for 50 minutes, reduce the rotation speed to 100 rpm, control the temperature at 20°C to 30°C, and discharge after 8 hours of reaction.

[0036] B. Preparation of nano-chloroprene:

[0037] With 26 parts of toluene, 25 parts of ethyl acetate, 120 # Put 14 parts of solvent gasoline into the double-machine dissolving kettle, start stirring at a speed of 60-80 rpm, add 14 parts of 2442 film, turn on the high-speed disperser, adjust the speed to 1300 rpm, disperse and dissolve the 2442 film, and control the temperature of the material 40°C, disperse operation for 8 hours. Add the pre-reaction liquid into the dual-machine dissolving tank, mix...

Embodiment 2

[0039] The raw materials used in the pre-reaction liquid components are 11 parts of toluene, 6.5 parts of cyclohexane, 12 parts of phenolic resin, 1.5 parts of nano-magnesium oxide, and 0.75 parts of catalyst.

[0040] The raw material used for nano-chloroprene adhesive is 25 parts of ethyl acetate, 22 parts of toluene, 120 # 16 parts of solvent gasoline, 22 parts of 2442 film.

[0041] Manufacturing process is the same as embodiment 1

Embodiment 3

[0043] The raw materials used in the pre-reaction liquid components are 12 parts of toluene, 5.5 parts of cyclohexane, 15 parts of phenolic resin, 2.5 parts of nano-magnesium oxide, and 0.75 parts of catalyst

[0044] The raw materials used for the nano-chloroprene adhesive are 22 parts of ethyl acetate and 25 parts of toluene.

[0045] 120 # 18 parts of solvent gasoline, 18 parts of 2442 film.

[0046] Manufacturing process is the same as embodiment 1

[0047] Reference example

[0048] A, the nano magnesia of the raw material used in the pre-reaction solution is replaced by light magnesia. All the other formulas and technology are with embodiment 1

[0049] B. Neoprene preparation

[0050] Raw material is the same as embodiment 1

[0051] Craftsmanship:

[0052] The 2442 film was masticated 20 times with a rubber mixer

[0053] Add the solvent into the dissolution kettle, start stirring at a speed of 60-80 rpm, add the 2442 film that has been masticated 20 times, con...

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Abstract

The invention relates to a nano neoprene adhesive and preparing method thereof. The nano neoprene adhesive is prepared by stirring, pre-reacting, high speed shearing, and mixing chloroprene rubber, phenol resin, nano magnesium oxide, cyclohexane, 120 # solvent gasoline, toluene, ethyl acetate, acetone and catalyst. The invention uses nano magnesium oxide, which replaces traditional light magnesium oxide, as chelating agent for pre-reaction to improve storage stability of pre-reacting liquid and increase adhesion strength of glue. By using high speed shearing to replace traditional glue refining technique, energy is saved, intensity of labor is reduced, and production efficiency is improved. The production possessed advantages of high binding strength, good storage stability, not easy to stratification, and good painting property.

Description

Technical field: [0001] The invention relates to a nano-chloroprene adhesive and a preparation method thereof. Background technique: [0002] Neoprene adhesive has good medium resistance, wide application range, high bonding strength and good durability. With the development of modern industry and science and technology, its use is becoming more and more extensive. In the prior art, phenolic resin and light magnesia are used to make a pre-reaction solution, neoprene is dissolved in a solvent to make a neoprene solution, and the two are mixed to make a neoprene adhesive. The purpose of preparing the pre-reaction solution is to improve the bonding strength of the glue. The particle size of light magnesia is relatively coarse, and it is not easy to disperse. The prepared pre-reaction liquid has low viscosity, and a large amount of magnesia precipitates after a short period of storage. The prepared neoprene adhesive has poor storage stability, is easy to delaminate, and has lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J111/00
Inventor 袁宏伟李冬月颜珍琼王理尧谭璋
Owner HUNAN SHENLI IND
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