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Water-blush-resistant fluoride and siloxane modified waterborne pressure-sensitive adhesive and polyethylene protective film

A polyethylene protective film and fluorine-silicon modification technology, which is applied in the direction of adhesives, ester copolymer adhesives, film/sheet adhesives, etc., can solve the problem of water-whitening resistance without the double modification method of fluorine-silicon Insufficient, shortened pot life of glue, etc., to alleviate the problem of coating film migration, reduce the possibility of water absorption and whitening, and improve the effect of water whitening resistance

Active Publication Date: 2012-06-20
无锡达美新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] There are patents on water-based pressure-sensitive adhesives related to surface protection films, such as "Peelable Emulsion Pressure-Sensitive Adhesive and Pressure-Sensitive Adhesive Sheet" (Patent Publication No. CN1517422A) describes the composition and preparation of a peelable emulsion PSA method, which includes an acrylate emulsion polymer and an external crosslinking agent containing a water-dispersible polyisocyanate, but the reaction of the water-dispersible polyisocyanate with water in the emulsion reduces the crosslinking efficiency, thereby reducing the water resistance, and also leads to The pot life of the glue is significantly shortened
"Preparation Method of Emulsion Pressure Sensitive Adhesive for Moisture and Heat Resistance Surface Protection Film and Surface Protection Film" (Patent Application No. CN200710018641.X) describes a kind of emulsion pressure sensitive adhesive for moisture and heat resistance protection film, but still uses more in its preparation process It is a non-reactive emulsifier, and it does not adopt the dual modification method of fluorine and silicon, so it is still lacking in water whitening resistance

Method used

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  • Water-blush-resistant fluoride and siloxane modified waterborne pressure-sensitive adhesive and polyethylene protective film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Prepare the water-resistant whitening fluorosilicon modified water-based pressure-sensitive adhesive according to the following specific steps:

[0031](1) Add 60 parts by weight of deionized water, 0.5 parts by weight of sodium alkylamide ethylene sulfonate (DNS-86), and 0.5 parts by weight of sodium vinyl sulfonate (SVS) into a three-necked flask, and use 800 rpm Stir at a stirring speed of 1 / min and stir evenly, then slowly mix 5 parts by weight of methyl methacrylate, 93 parts by weight of isooctyl acrylate, 75 parts by weight of butyl acrylate, 10 parts by weight of hexafluorobutyl acrylate, 10 parts by weight of Parts of γ-methacryloxypropyl tris (isopropoxy) silane, 3 parts by weight of hydroxyethyl acrylate, 4 parts by weight of acrylic acid, 0.5 parts by weight of ethylene glycol dimethacrylate, 0.1 parts by weight Parts of n-dodecyl mercaptan are added dropwise, and stirred to obtain the pre-emulsion for subsequent use for 30 minutes;

[0032] (2) Add 160 par...

Embodiment 2

[0041] Prepare the water-resistant whitening fluorosilicon modified water-based pressure-sensitive adhesive according to the following specific steps:

[0042] (1) Add 60 parts by weight of deionized water and 0.5 parts by weight of allyloxy fatty alcohol polyoxyethylene ether ammonium sulfate (SR-10) into a three-necked flask, stir evenly at a stirring speed of 800 rpm, Then slowly add 10 parts by weight of methyl methacrylate, 88 parts by weight of isooctyl acrylate, 85 parts by weight of butyl acrylate, 5 parts by weight of nonadecafluoromethacrylate, 3 parts by weight of vinyltrimethoxy 3 parts by weight of hydroxypropyl acrylate, 4 parts by weight of acrylic acid, 2 parts by weight of glycidyl methacrylate, 0.2 parts by weight of trimethylolpropane trimethacrylate, 0.3 parts by weight of mercaptoethanol Drop in and stir for 30 minutes to obtain a pre-emulsion and set aside;

[0043] (2) the step (1) gained pre-emulsion of the deionized water of 160 weight parts, the sodi...

Embodiment 3

[0052] Prepare the water-resistant whitening fluorosilicon modified water-based pressure-sensitive adhesive according to the following specific steps:

[0053] (1) 60 parts by weight of deionized water, 0.7 parts by weight of sodium alkylamide ethylene sulfonate (DNS-86), 0.8 parts by weight of allyloxy nonylphenol polyoxyethylene ether ammonium sulfate (SE-10 ) into a three-necked flask, stir evenly at a stirring speed of 600 rpm, then slowly mix 20 parts by weight of methyl acrylate, 50 parts by weight of ethyl acrylate, 104 parts by weight of isooctyl acrylate, 6 parts by weight of Hexafluorobutyl acrylate, 8 parts by weight of γ-methacryloxypropyl tri(methoxy)silane, 4 parts by weight of hydroxyethyl methacrylate, 5 parts by weight of acrylic acid, 3 parts by weight of hydroxyl Methacrylamide, 0.8 parts by weight of ethylene glycol dimethacrylate, and 0.1 parts by weight of n-dodecyl mercaptan are added dropwise, and stirred for 30 minutes to obtain a pre-emulsion, which i...

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Abstract

The invention discloses a preparation method of a water-blush-resistant fluoride and siloxane modified waterborne pressure-sensitive adhesive for a polyethylene protective film, and the method is used for synthesizing a cross-linking type water-blush-resistant fluoride and siloxane modified waterborne pressure sensitive adhesive with less emulsifier dosage and excellent performance by introducing an organic siloxane monomer and a fluoride-containing vinyl monomer to perform copolymerization modification in a polymerizing process, compounding by utilizing an emulsifier, and adopting a seed emulsion polymerization method. The invention also provides a preparation method of the polyethylene protective film, and the prepared protective film is excellent in water blush resistance, and guarantees that the surface of a protected material does not have residual adhesive of the torn film and is not polluted after the protective film is used outdoors for a long time according to the requirement.

Description

technical field [0001] The invention relates to a preparation method of a water-based pressure-sensitive adhesive for a polyethylene protective film, in particular to a preparation method of a water-resistant whitening fluorosilicon modified water-based pressure-sensitive adhesive for a polyethylene protective film. Background technique [0002] Protective film is a surface protection and packaging material used to protect the surface of commodities. It is pasted on various metals, aluminum-plastic panels, plastic panels, coated steel, stainless steel panels, aluminum profiles, stone, glass, instruments, and furniture. Such as the surface of the commodity, so that it can protect the surface during manufacturing, transportation, secondary processing, storage and use, prevent the commodity from being polluted, scratched and slow down the oxidation of the commodity surface. The application of protective film can not only improve the appearance quality of products and facilitate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J7/02C08F220/18C08F220/22C08F230/08C08F220/28C08F2/24
Inventor 柯跃虎王洪王见红
Owner 无锡达美新材料有限公司
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