Unlock instant, AI-driven research and patent intelligence for your innovation.

Self-thickening water-based adhesive and preparation method thereof

A water-based adhesive, self-thickening technology, applied in the direction of acidic copolymer adhesives, adhesive types, etc., can solve problems such as uneven mixing, high risk of quality problems, compatibility problems, etc., to achieve product The effect of stable quality, simplified on-site operation and reduced production cost

Active Publication Date: 2021-06-15
英创科技(广东)有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the external thickener needs to be compatible with the original water-based adhesive system, otherwise compatibility problems will easily occur (for example: causing the water-based adhesive to break). In addition, if the external thickener is used for hundreds of thousands of centimeters The thickening of poise is prone to the problem of uneven stirring, resulting in later viscosity changes, and the risk of product quality problems is very high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-thickening water-based adhesive and preparation method thereof
  • Self-thickening water-based adhesive and preparation method thereof
  • Self-thickening water-based adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A self-thickening water-based adhesive, its raw material composition is shown in the following table:

[0048] Table 1 The raw material composition list of a self-thickening water-based adhesive

[0049] raw material Mass percentage (%) acrylic acid 15 Butyl acrylate 5 Acrylamide 5 stearyl acrylate 5 ammonia 15 N,N-Methylenebisacrylamide 0.09 Ammonium persulfate 0.04 Span 60 1.5 NP-10 0.8 Tween 80 1.5 Paraffin oil 8 Deionized water 43.07

[0050] The preparation method of above-mentioned self-thickening water-based adhesive comprises the following steps:

[0051] 1) Preparation of aqueous phase mixture: disperse acrylic acid and butyl acrylate in deionized water, then slowly add ammonia water to adjust the pH to 6, then add acrylamide, stearyl acrylate, N,N-methylenebisacrylamide and ammonium persulfate to obtain an aqueous phase mixture;

[0052] 2) Emulsification: Slowly add the w...

Embodiment 2

[0055] A self-thickening water-based adhesive, its raw material composition is shown in the following table:

[0056] Table 2 The raw material composition table of a self-thickening water-based adhesive

[0057] raw material Mass percentage (%) acrylic acid 12 Methyl methacrylate 6 Acrylamide 7 Allyl alcohol polyoxyethylene ether 3 sodium hydroxide 20 Diallyl phthalate 0.06 Ammonium persulfate 0.06 Span 80 2.5 NP-10 2.5 Ping Ping O 0.5 naphthenic oil 10 Deionized water 36.38

[0058] The preparation method of above-mentioned self-thickening water-based adhesive comprises the following steps:

[0059] 1) Preparation of aqueous phase mixture: disperse acrylic acid and methyl methacrylate in deionized water, then slowly add sodium hydroxide solution to adjust the pH to 6, then add acrylamide, allyl alcohol polyoxyethylene ether, o-phenyl Diallyl diformate and ammonium persulfate obtain an aque...

Embodiment 3

[0063] A self-thickening water-based adhesive, its raw material composition is shown in the following table:

[0064] Table 3 A kind of raw material composition list of self-thickening water-based adhesive

[0065] raw material Mass percentage (%) Methacrylate 14 Butyl acrylate 4 lauryl acrylate 6 ammonia 18 Ethylene glycol dimethacrylate 0.06 potassium persulfate 0.03 Span 80 2 NP-10 2 Paraffin oil 10 Deionized water 43.91

[0066] The preparation method of above-mentioned self-thickening water-based adhesive comprises the following steps:

[0067] 1) Preparation of aqueous phase mixture: disperse methacrylic acid and butyl acrylate in deionized water, then slowly add ammonia water to adjust the pH to 6.5, then add lauryl acrylate, ethylene glycol dimethacrylate and persulfuric acid Potassium, obtains aqueous mixed solution;

[0068] 2) Emulsification: Slowly add the water phase mixture into the stir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a self-thickening water-based adhesive and a preparation method thereof. The self-thickening water-based adhesive is prepared from acrylic acid or / and acrylate monomers, functional monomers, alkali, a cross-linking agent, an initiator, an emulsifier, a reversed-phase emulsifier, an organic solvent and water. The preparation method of the self-thickening water-based adhesive comprises the following steps: 1) preparing a water-phase mixed solution; 2) carrying out emulsifying; and 3) carrying out polymerization and phase inversion. When the water-based adhesive is used, a thickening agent does not need to be additionally added, the viscosity of the water-based adhesive can be directly adjusted by adding water, the viscosity is easy to adjust and control, the production cost is reduced, the field operation is simplified, the product quality is stable, and the water-based adhesive can be widely applied to adhesion of household paper, rag paper, packaging paper and other paper products, and the water-based adhesive can also be used for thickening other water-based adhesives or coatings.

Description

technical field [0001] The invention relates to the technical field of water-based adhesives, in particular to a self-thickening water-based adhesive and a preparation method thereof. Background technique [0002] Water-based adhesive is an environmentally friendly adhesive prepared by using natural polymers or synthetic polymers as adhesives, using water as a solvent or dispersant to replace toxic and harmful organic solvents that pollute the environment. Water-based adhesives need to have a certain viscosity in order to achieve a better effect on the machine and meet the application requirements in actual scenarios. [0003] At present, in order to achieve the required viscosity, most of the water-based adhesives need to add additional thickeners or pH regulators, which will not only increase the cost, but also increase the difficulty of on-site operation and lead to unstable quality sex. Usually, the external thickener needs to be compatible with the original water-base...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/02C08F220/06C08F220/18C08F220/56C08F222/38C08F220/14C08F218/18C08F216/14C08F222/14
CPCC09J133/02C08F220/06C08F220/1804C08F220/56C08F220/1818C08F222/385C08F220/14C08F218/18C08F216/1433C08F220/1812C08F222/102
Inventor 汪军
Owner 英创科技(广东)有限公司