Hydrophobic under-coating paint for polyolefin film and preparation method of hydrophobic under-coating paint

A polyolefin and film technology, applied in the coating and other directions, can solve the problems of not cheap price, high price of oily products, unsuitable for environmental protection requirements, etc., to achieve the effect of enhancing printing adaptability, low cost, and enhancing spreadability

Active Publication Date: 2016-12-21
汕头市龙湖昌丰化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the coatings that can be used for primer coating on PP, BOPP, and PE films are generally oily chlorinated polypropylene, chlorinated polypropylene modified acrylic resin, polyurethane resin or water-based polyurethane. The former oily products are expensive and not suitable for increasingly stringent requirements. Environmental protection requirements, and the latter price is not cheap, therefore, if can prepare a kind of cheap, and be applicable to the water-based primer of PP, BOPP, PE film primer by optimizing the formula and process step, it is those skilled in the art to devote oneself to research topic

Method used

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  • Hydrophobic under-coating paint for polyolefin film and preparation method of hydrophobic under-coating paint
  • Hydrophobic under-coating paint for polyolefin film and preparation method of hydrophobic under-coating paint
  • Hydrophobic under-coating paint for polyolefin film and preparation method of hydrophobic under-coating paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Formula

[0035]

[0036] 2. Preparation method

[0037] (1) Preparation of pre-emulsion: According to the above formula, 30 parts of isooctyl acrylate, 70 parts of methyl methacrylate, 2 parts of methacrylic acid, 2 parts of glycidyl methacrylate and 0.5 parts of dodecyl sulfide Alcohol is added to an emulsifier solution consisting of 3 parts of allyloxynonylphenol polyethylene (10) ether ammonium sulfate and 30 parts of deionized water, and emulsified at high speed for 30 minutes to make a pre-emulsion;

[0038] (2) Add 1.5 parts of ammonium persulfate to 15 parts of deionized water, stir to dissolve, and obtain ammonium persulfate solution;

[0039] (3) Preparation of emulsion: Add 105 parts of deionized water, 30 parts of EVA emulsion, 3 parts of allyloxy nonylphenol poly Ethylene (10) ether ammonium sulfate, 1 part of sodium bicarbonate, and stir. When the temperature of the material in the reaction vessel rises to 72°C, add 30% of the ammonium persulfate sol...

Embodiment 2

[0042] 1. Formula

[0043]

[0044] 2. Preparation

[0045] (1) Preparation of pre-emulsion: According to the above formula, 30 parts of butyl acrylate (dissolved with 10 parts of chlorinated polyolefin resin), 70 parts of methyl methacrylate, 3 parts of methacrylic acid, 3 parts of hydroxyethyl acrylate and 0.5 parts of dodecyl mercaptan are added to an emulsifier solution composed of 3 parts of 2-acrylamido-2-methylpropanesulfonate sodium and 30 parts of deionized water, and emulsified at high speed for 30 minutes to form a pre- Lotion;

[0046] (2) Add 1.5 parts of potassium persulfate to 15 parts of deionized water, stir to dissolve, and obtain potassium persulfate solution;

[0047] (3) Preparation of emulsion: Add 105 parts of deionized water, 20% of the pre-emulsion obtained in step (1), 3 parts of 2- Sodium acrylamido-2-methylpropane sulfonate, 1 part of sodium bicarbonate, and stirring, when the temperature of the material in the reaction vessel rises to 72°C, a...

Embodiment 3

[0050] 1. Formula

[0051]

[0052] 3. Preparation

[0053] (1) Preparation of pre-emulsion: According to the above formula, 30 parts of butyl acrylate, 50 parts of methyl methacrylate, 20 parts of vinyl acetate, 3 parts of methacrylic acid, 2 parts of methylol acrylamide, 0.5 parts of ten Dialkyl mercaptan was added to an emulsifier solution consisting of 3 parts of 2-acrylamido-2-methylpropanesulfonate sodium and 30 parts of deionized water, and stirred and emulsified at high speed for 30 minutes to make a pre-emulsion;

[0054] (2) Add 1.5 parts of potassium persulfate to 15 parts of deionized water, stir to dissolve, and obtain potassium persulfate solution;

[0055] (3) Preparation of emulsion: Add 105 parts of deionized water, 20% of the pre-emulsion prepared in step (1), 3 parts 2-acrylamido-2-methylpropane sodium sulfonate, 1 part of sodium bicarbonate, and stir; when the temperature of the material in the reaction vessel rises to 72°C, add 30% of the potassium pe...

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Abstract

The invention provides hydrophobic under-coating paint applied to a poor-polarity polyolefin film. The under-coating paint is prepared from the following components in parts by weight: 30-50 parts of soft monomers, 50-70 parts of hard monomers, 5-30 parts of vinyl monomers, vinyl monomer synthetic resin, vinyl monomer synthetic emulsion or polyethyleneimine, 1-10 parts of acidic functional monomers, 1-10 parts of cross-linking monomers, 2-6 parts of a reaction type emulsifying agent, 0.5-2 parts of an initiating agent, 0.1-1 part of lauryl mercaptan, 0.5-2 parts of an antifoaming agent, 0.5-2 parts of a wetting agent and 140-160 parts of deionized water by an emulsion polymerization method, wherein the vinyl monomers are vinyl acetate, vinyl ester of tertary carboxylic acids, butadiene, isoprene, vinyl chloride or vinylidene chloride, the vinyl monomer synthetic resin is chlorinated polyolefin resin, and the vinyl monomer polymerization emulsion is an EVA emulsion. The under-coating paint disclosed by the invention is low in cost, has favorable adhesive force to the polyolefin films, and can provide favorable ink-printing adaptability. The invention further provides a preparation method of the under-coating paint.

Description

technical field [0001] The invention relates to a coating, in particular to a primer applied to a printing base material, and more particularly to a water-based base coating applied to a weakly polar polyolefin film printing base. The present invention also relates to a preparation method of the above primer coating. Background technique [0002] Polyolefin films such as PP, BOPP and PE, which are commonly used as printing substrates, are widely used in many fields such as insulation protection, labels, printing and packaging of electronic products due to their excellent chemical resistance, temperature resistance and water resistance. However, polyolefin films such as PP, BOPP and PE are weakly polar materials, and it is difficult for adhesives and inks to directly adhere to the surface of these films. If no surface treatment is performed, the coated or printed adhesives or inks are easy to fall off, seriously affect the quality of the product. [0003] PP, BOPP and PE fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/06C09D133/12C09D7/12C08F255/02C08F255/00C08F220/14C08F220/18C08F218/08C08F220/06C08F220/58
CPCC09D133/12C09D151/06C08F220/14C08F255/00C08F255/026C08L79/02C08F220/1808C08F220/585C08F220/06C08F220/58C08F220/1804C08F218/08
Inventor 吴跟新郑良晓胡峻
Owner 汕头市龙湖昌丰化工有限公司
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