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Water-based flocking adhesive and preparation method thereof

A flocking glue, water-based technology, applied in the direction of adhesives, adhesive types, grafted polymer adhesives, etc., can solve the problem of stability, water resistance, poor air and moisture permeability, wear resistance, water resistance and softness Insufficient durability, poor water resistance, poor wear resistance, etc., to achieve the effect of excellent hand feeling and air permeability, easy preparation method and easy operation, and improved water resistance

Inactive Publication Date: 2019-08-20
汕头市易贴包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most widely used water-based flocking adhesive is polyacrylate emulsion adhesive, which is cheap, easy to prepare and use, resistant to aging and has good adhesion to various fibers. , water resistance and softness, there are still deficiencies, especially the cross-linking monomers of acrylate emulsion flocking glue are mostly methylol acrylamide and the cross-linking agent is mostly etherified methylol melamine, the methylol group contained Formaldehyde will slowly release formaldehyde, which is highly toxic and cannot meet the increasingly stringent environmental protection requirements for textiles.
[0004] Water-based flocking glue with water-based polyurethane as the main component has appeared in the prior art. This water-based flocking glue just avoids the shortcomings of polyacrylate flocking glue, but it still has the disadvantages of poor water resistance and abrasion resistance. problems, which often bring inconvenience to industrial production in practical applications
The water-based flocking adhesives on the market generally have the defects of low bond strength, poor stability, water resistance, hand feeling and breathability, and some adhesives are unsafe to use and the baking temperature is too high.

Method used

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  • Water-based flocking adhesive and preparation method thereof
  • Water-based flocking adhesive and preparation method thereof

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preparation example Construction

[0021] The emulsifier is at least one of sodium lauryl sulfate, secondary alcohol fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether and alkylphenol ether sulfosuccinic acid sodium salt. The initiator is at least one of potassium persulfate, sodium persulfate, ammonium persulfate and azodiisopropylimidazoline hydrochloride. The preparation method of described 3-chloro-2-hydroxypropyl acrylate ionized modified hyperbranched polyethyleneimine comprises the following steps: dissolving 3-chloro-2-hydroxypropyl acrylate and hyperbranched polyethyleneimine in In N,N-dimethylacetamide, stir the reaction at 60-80°C for 4-6 hours, then remove N,N-dimethylacetamide by rotary evaporation, wash the product 3-5 times with ether, and then place Dry in a vacuum oven at 80-90°C until constant weight. The mass ratio of the 3-chloro-2-hydroxypropyl acrylate, hyperbranched polyethyleneimine and N,N-dimethylacetamide is 1:1:(8-12). The preparation method of the fluorine-conta...

Embodiment 1

[0026] Embodiment 1 provides a water-based flocking glue, which is made of the following raw materials in parts by weight: 20 parts of water-soluble terminal acrylate-based hyperbranched polyester, 3-chloro-2-hydroxypropyl acrylate ionized modified hyperbranched 5 parts of polyethyleneimine, 30 parts of hydroxyl-terminated waterborne polyurethane, 1 part of blocked isocyanate crosslinking agent, D-mannitol 1,6-di(2-isocyano-3-methyl-2-butenoate ) 1 part, 0.5 part of fluorine-containing trihydroxysilane compound, 2 parts of sodium lauryl sulfate, 0.1 part of potassium persulfate, and 50 parts of water.

[0027] The preparation method of the 3-chloro-2-hydroxypropyl acrylate ionized modified hyperbranched polyethyleneimine comprises the following steps: 1 kg of 3-chloro-2-hydroxypropyl acrylate, 1 kg of hyperbranched polyethyleneimine Dissolve in 8 kg of N,N-dimethylacetamide, stir and react at 60°C for 4 hours, then remove N,N-dimethylacetamide by rotary evaporation, wash the p...

Embodiment 2

[0035] Embodiment 2 provides a kind of water-based flocking glue and preparation method thereof, and it is basically consistent with embodiment 1, and difference is only, described water-based flocking glue is made of each raw material of following weight portion: water-soluble terminal acrylic acid 23 parts of ester-based hyperbranched polyester, 7 parts of ionized modified hyperbranched polyethyleneimine with 3-chloro-2-hydroxypropyl acrylate, 33 parts of hydroxyl-terminated waterborne polyurethane, 2 parts of blocked isocyanate crosslinking agent, D- 1.5 parts of mannitol 1,6-bis(2-isocyano-3-methyl-2-butenoate), 0.7 parts of fluorine-containing trihydroxysilane compounds, 3 parts of secondary alcohol fatty alcohol polyoxyethylene ether, 0.2 parts of sodium persulfate, 53 parts of water.

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Abstract

The invention relates to a water-based flocking adhesive. The flocking adhesive is characterized by being prepared from the following raw materials, in parts by weight: 20-30 parts of a water-solubleterminal acrylate hyperbranched polyester, 5-10 parts of 3-chloro-2-hydroxypropyl acrylate ionized modified hyperbranched polyethyleneimine, 30-40 parts of hydroxyl terminated water-based polyurethane, 1-5 parts of a blocked isocyanate crosslinking agent, 1-3 parts of D-mannitol-1,6-bis(2-isocyano-3-methyl-2-butenoate), 0.5-1 part of a fluorine-containing trihydroxysilane compound, 2-5 parts of anemulsifying agent, 0.1-0.5 part of an initiator, and 50-60 parts of water. The invention also discloses a preparation method and use method of the water-based flocking adhesive. The water-based flocking adhesive disclosed by the invention has the advantages of excellent water resistance, wear resistance and weather resistance, high bonding strength, excellent stability, water resistance, hand feeling and air and moisture permeability, and safe, green and environmentally-friendly use.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a water-based flocking adhesive and a preparation method thereof. Background technique [0002] With the development of society and the improvement of living standards, the automobile industry is developing rapidly, and people have higher and higher requirements for sealing materials in the automobile industry. The development of sealing materials with good performance has become a hot research topic in the industry. Automobile flocking sealing strip is a common sealing material in the automotive field. It mainly includes window side sealing strip (water cut) and window glass guide groove. Its function is to seal the external wind and rain, prevent dust from entering, reduce noise, It is easier to slide, etc., and an essential reagent in the production process of automobile flocking sealing strips is flocking glue, and its performance directly affects the sealing ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J151/08C08G18/32
CPCC08G18/3893C09J175/04C08L51/08
Inventor 赵龙英
Owner 汕头市易贴包装材料有限公司
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