Water-based adhesive, preparation method, adhesive tape and preparation method thereof

A water-based adhesive and tape technology, applied in the direction of adhesives, adhesive types, ester copolymer adhesives, etc., can solve the problems of poor bonding performance, low toxicity, environmental protection, complicated operation, etc., and achieve electrical insulation performance Stable, easy-to-use effects

Inactive Publication Date: 2016-01-20
江苏晶华新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The PVC tapes currently used in the market are mainly coated with solvent-based or hot-melt adhesives. Among them, PVC tapes made of solvent-based adhesives often contain organic solvents such as toluene and ethyl acetate, which are low-toxic It is not environmentally friendly and costly; while hot-melt adhesives are made into PVC tapes, the hot-melt adhesive needs to be heated to 140°C-180°C to melt, and then coated with a special hot-melt adhesive coating machine. Unwinding at th

Method used

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  • Water-based adhesive, preparation method, adhesive tape and preparation method thereof
  • Water-based adhesive, preparation method, adhesive tape and preparation method thereof
  • Water-based adhesive, preparation method, adhesive tape and preparation method thereof

Examples

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preparation example Construction

[0025] The preparation method of water-based adhesive of the present invention comprises:

[0026] S1: Preparation of pre-emulsion: Add 2.5-9.5 parts of reactive emulsifier and 0.08-0.9 parts of sodium bicarbonate to the pre-emulsification tank, mix with 100-250 parts of deionized water and stir evenly, and add 2- 30 parts of methacrylic acid or acrylic acid, 1-20 parts of methylol acrylamide, 0-300 parts of isooctyl acrylate, 0-200 parts of vinyl nonanoate, and 0-300 parts of styrene are stirred evenly to obtain the pre- Emulsion;

[0027] S2: Add 150-350 parts of deionized water, the remaining reactive emulsifier and sodium bicarbonate to the reactor; heat up to 75-85°C, take 1-5% of the pre-emulsion prepared in step S1 Add, and add the diluent prepared by adding 0.3-6 parts of ammonium persulfate and 20-50 parts of deionized water;

[0028] S3: Insulate for 10 minutes, start to drop the remaining pre-emulsion prepared in step S1 and the remaining ammonium persulfate and 2...

Embodiment 1

[0036] Water-based adhesives include by parts:

[0037]

[0038] The preparation method of the above-mentioned water-based adhesive with water whitening resistance comprises:

[0039] S1: Preparation of pre-emulsion: Add 2.4 parts of alkyl ether sulfate allylamine salt and 0.08 part of sodium bicarbonate to the pre-emulsification tank, mix with 150 parts of deionized water and stir evenly, and add 2 parts of Methacrylic acid, 20 parts of methylol acrylamide, 300 parts of isooctyl acrylate, and 150 parts of styrene are stirred evenly to obtain a pre-emulsion;

[0040] S2: Add 300 parts of deionized water, 0.6 parts of allylamine alkyl ether sulfate and 0.02 parts of sodium bicarbonate into the reaction kettle; heat up to 75-85 ° C, take the pre-emulsified prepared in step S1 Add 1% of the solution, and add 1.5 parts of ammonium persulfate and 15 parts of deionized water mixture;

[0041] S3: keep warm for 10 minutes, start to drop the pre-emulsion prepared in the remaining...

Embodiment 2

[0043] Water-based adhesives include by parts:

[0044]

[0045] The preparation method of the water-based adhesive with water whitening resistance comprises:

[0046] S1: Preparation of pre-emulsion: 7.25 parts of alkyl ether sulfate allylamine salt and 0.9 part of sodium bicarbonate added to the pre-emulsification kettle were mixed with 150 parts of deionized water and stirred evenly, and 20 parts of acrylic acid, 10 parts of methylol acrylamide, 150 parts of isooctyl acrylate, 100 parts of vinyl nonanoate and 50 parts of styrene are stirred evenly to obtain a pre-emulsion;

[0047] S2: Add 200 parts of deionized water, 0.75 parts of allylamine alkyl ether sulfate and 0.1 part of sodium bicarbonate into the reaction kettle; heat up to 85 ° C, take 5 parts of the pre-emulsion prepared in step S1 % was added, and a dilution solution of 4.2 parts of ammonium persulfate and 20 parts of deionized water was added;

[0048] S3: keep warm for 10 minutes, start to drop the remai...

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Abstract

The invention relates to a water-based adhesive, a preparation method, an adhesive tape and a preparation method thereof. The preparation method of the water-based adhesive comprises the following steps of: preparing pre-emulsified liquid, adding 2.5-9.5 parts of reactive emulsifying agent and 0.08-0.9 part of sodium bicarbonate into a pre-emulsifying kettle, mixing with 100-250 parts of deionized water, stirring uniformly, adding 2-30 parts of methacrylic acid or acrylic acid, 1-20 parts of hydroxymethyl acrylamide and ethylhexyl acrylate and the like, stirring uniformly, and adding 150-350 parts of deionized water, the reactive emulsifying agent and the sodium bicarbonate into a reaction kettle; rising the temperature to be 75-85 DEG C, and adding 1-5% of pre-emulsified liquid prepared in the step S1 and diluted liquid prepared by adding 0.3-6 parts of ammonium persulfate and 20-30 parts of deionized water; preserving heat for 10 minutes, starting to drip the pre-emulsified liquid prepared by the step S1 and the diluted liquid prepared by the remaining ammonium persulfate and 20-50 parts of deionized water, and dripping within 2-5 hours completely; preserving heat for 10-60 minutes, then eliminating, reducing the temperature to be below 45 DEG C, neutralizing, discharging, adding a defoaming agent and a sterilizing agent, finally filtering by a net and discharging.

Description

technical field [0001] The invention relates to a water-based adhesive, a preparation method, an adhesive tape and a preparation method of the adhesive tape. Background technique [0002] The PVC tapes currently used in the market are mainly coated with solvent-based or hot-melt adhesives. Among them, PVC tapes made of solvent-based adhesives often contain organic solvents such as toluene and ethyl acetate, which are low-toxic It is not environmentally friendly and costly; while hot-melt adhesives are made into PVC tapes, the hot-melt adhesive needs to be heated to 140°C-180°C to melt, and then coated with a special hot-melt adhesive coating machine. Unwinding at the construction site, winding after heating, complicated operation, and high cost; In addition, PVC tape made of a small amount of water-based acrylic emulsion in the market has poor bonding performance, especially for low surface energy quilts. The adhesion of the adhesive is worse, and it will swell when it enco...

Claims

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Application Information

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IPC IPC(8): C09J133/08C09J7/02C08F220/18C08F220/06C08F220/58C08F212/08C08F218/10C08F2/24
Inventor 吴林群周晓南
Owner 江苏晶华新材料科技有限公司
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