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Water-based pressure-sensitive adhesive for polyethylene protective film and preparation method thereof

A polyethylene protective film and pressure-sensitive adhesive technology, which is applied in adhesives, graft polymer adhesives, film/sheet adhesives, etc., can solve the problems of users' health hazards and environmental pollution, and achieve Excellent performance, low energy consumption, excellent high temperature and high humidity resistance

Active Publication Date: 2014-10-15
广东创阳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

These volatile organic compounds will not only cause serious environmental pollution, but also cause relatively great harm to the health of users.

Method used

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  • Water-based pressure-sensitive adhesive for polyethylene protective film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 1. Synthetic PUA emulsion

[0056]After dehydrating 100g of polyoxypropylene diol and 50g of polyoxypropylene triol under reduced pressure, add 100g of diphenylmethane diisocyanate, 0.5g of stannous octoate, and 0.5g of di-n-butyltin dilaurate, at 80-85°C React for 2 hours, add 0.5g of ethylenediamine, add 100g of hydroxyethyl acrylate after 1 hour of heat preservation reaction, react for 1 hour, cool down to 45-50°C, add 3g of N,N-diethylethylamine, 0.5g of dimethylol Propionic acid, 80g butyl acrylate, 70g ethyl acrylate, 30g methyl acrylate, 20g methyl methacrylate, 437g distilled water, stirred for 0.5-1 hour, added 8g of azobisisobutyronitrile, and reacted at 80°C for 3 Hours, after cooling, filter to obtain PUA emulsion (polyurethane / acrylate composite emulsion).

[0057] 2. Preparation of water-based pressure-sensitive adhesive

[0058] Stir 95g of PUA emulsion and 5g of polymethylene polyphenyl polyisocyanate evenly at room temperature to obtain the water-base...

Embodiment 2

[0075] 1. Synthetic PUA emulsion

[0076] After dehydrating 145g of polyoxypropylene triol by vacuum distillation, add 55g of diphenylmethane diisocyanate, 37g of toluene diisocyanate, 1.5g of triethylenediamine, 1g of di-n-butyltin dilaurate, and react at 80-85°C for 2 1 hour, add 0.5g dimethylolpropionic acid, keep warm for about 1 hour, then add 35g hydroxyethyl acrylate, react for about 1 hour, cool down to 45-50°C, add 15g N,N-diethylethylamine, 0.5g Dimethylolpropionic acid, 320g butyl acrylate, 80g isooctyl acrylate, 75g methyl acrylate, 75g methyl methacrylate, 158g distilled water, stirred for 0.5-1 hour, added 1.5g azobisisobutyronitrile, in React at 80°C for about 3 hours, filter after cooling to obtain PUA emulsion.

[0077] 2. Preparation of water-based pressure-sensitive adhesive

[0078] 98g of PUA emulsion, 1g of polymethylene polyphenyl polyisocyanate, and 1g of 4,4-dimethylmethane-diisocyanate were evenly stirred at room temperature to obtain the water-base...

Embodiment 3

[0091] 1. Synthetic PUA emulsion

[0092] After 300g of polyoxypropylene triol is distilled and dehydrated under reduced pressure, add 200g of toluene diisocyanate, 2g of stannous octoate, and 3g of di-n-butyltin dilaurate, react at 80-85°C for 2 hours, add 5g of ethylenediamine, and keep warm for the reaction After about 1 hour, add 5g of hydroxyethyl acrylate and 5g of N-methylolacrylamide, react for about 1 hour, cool down to 45-50°C, add 4g of N,N-diethylethylamine, 10g of dimethylolpropionic acid, 120g butyl acrylate, 130g isooctyl acrylate, 30g methyl acrylate, 185g distilled water, stir for 0.5-1 hour, add 1g azobisisobutyronitrile, react at 80°C for about 3 hours, cool and filter to obtain PUA lotion.

[0093] 2. Preparation of water-based pressure-sensitive adhesive

[0094] Stir 99.9g of PUA emulsion and 0.1g of 4,4-dimethylmethane-diisocyanate evenly at room temperature to obtain the water-based pressure-sensitive adhesive of the present invention.

[0095] 3. De...

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Abstract

The invention discloses water-based pressure-sensitive adhesive of a polyethylene protective film and a preparation method thereof. The water-based pressure-sensitive adhesive comprises the following components by weight percentage: 95.0-99.9 percent of PUA (polyurethane / acrylate) emulsion ad 0.1-5.0 percent of curing agent. No environmental pollution can be caused by the water-based pressure-sensitive adhesive, the water-based pressure-sensitive adhesive has good adhesion to a polyethylene film, and the initial adhesion, stripping strength and cohesion can be well balanced.

Description

technical field [0001] The invention relates to a water-based pressure-sensitive adhesive and a preparation method thereof, more specifically, the invention relates to a water-based pressure-sensitive adhesive for a polyethylene protective film and a preparation method thereof. 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 material processing, but also improve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J151/08C09J7/02C08F290/00C08G18/67
Inventor 王洪李国荣陈伯华
Owner 广东创阳新材料科技有限公司
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