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Water soluble polymer mixed emulsion, coating and preparation method thereof

A water-soluble polymer, mixed milk technology, applied in chemical instruments and methods, coatings, synthetic resin layered products, etc., can solve the problem of increasing the production process and complexity of the process, the production labor intensity of operators, and the safety of coating films. It can reduce the complexity of the production process, save energy and raw materials, and reduce labor intensity.

Inactive Publication Date: 2011-07-20
苗小胜 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention is aimed at the coating film of prior art owing to comprise adhesive agent to form cohesive adhesion layer, therefore brought the increase of the production cost that uses adhesive agent and the consumption of material, and in hot-air drying process if residual solvent cannot Completely eliminate the hidden dangers caused by the safety and sanitation of the coating film, increase the complexity and difficulty of the process production process and the labor intensity of the operators, and increase the production cost of the coating film. A water-soluble polymer is provided Mixed emulsion and coating film and preparation method thereof

Method used

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  • Water soluble polymer mixed emulsion, coating and preparation method thereof
  • Water soluble polymer mixed emulsion, coating and preparation method thereof
  • Water soluble polymer mixed emulsion, coating and preparation method thereof

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preparation example Construction

[0029] figure 1 It is a schematic flow chart of the coating film preparation method of the present invention. like figure 1 Shown, described preparation method comprises the following steps:

[0030] Step 10: Corona treatment of the polymer base material layer to achieve a surface wetting tension of the polymer base material of 38 dyn / cm 2 above.

[0031]In order to achieve good adhesion of general polymer materials, according to the material and application, the value of corona treatment should make the surface wetting tension of the polymer base material reach 38dyn / cm 2 ~58dyn / cm 2 . Corona treatment is an electric shock treatment that makes the surface of the substrate more adherent. The principle is to use high-frequency and high-voltage corona discharge on the surface of the treated plastic (high-frequency AC voltage up to 500V / m 2 ~15000V / m 2 ), and low-temperature plasma is generated, which causes free radical reactions on the surface of the plastic to cross-li...

Embodiment 1

[0042] Stir and mix polyvinylidene chloride emulsion, water-based polyurethane adhesive, silane and triethanolamine at a mass ratio of 100:10:2:1, wherein the stirring speed is 50 revolutions per minute, thereby forming a water-soluble polymer mixed emulsion, The water-soluble polymer mixed emulsion is coated on the surface of the biaxially stretched polypropylene film, and the surface wetting tension of the biaxially stretched polypropylene film reaches 38 dyn / cm after corona treatment 2 Above, after infrared treatment and hot air drying in sequence, after cooling to room temperature, a polymer mixed emulsion crystal coating layer is formed on the surface of the biaxially stretched polypropylene film, and then winding, aging, cutting, and inspection are performed in sequence. Finished coating film is made.

Embodiment 2

[0044] Stir and mix the acrylic emulsion, alcohol-soluble polyurethane adhesive, phosphoric acid ester and high-carbon aliphatic alcohol at a mass ratio of 100:15:3:1.5, wherein the stirring speed is 100 rpm to form a water-soluble polymer Mixed emulsion, the water-soluble polymer mixed emulsion is coated on the surface of the polyvinyl chloride calendered film, and the surface wetting tension of the polyvinyl chloride calendered film reaches 48 dyn / cm after corona treatment 2 , followed by infrared treatment and hot air drying, and after cooling to room temperature, a polymer mixed emulsion crystal coating layer is formed on the surface of the biaxially stretched polypropylene film, and then winding, aging, cutting, and inspection are carried out in sequence, and the product can be produced. into a finished coating film.

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Abstract

The invention relates to water soluble polymer mixed emulsion, coating and a preparation method thereof. The mixed emulsion comprises water soluble polymer emulsion, an adhesive, an adhesion promoter and a surface treating agent, wherein the mass ratio of the water soluble polymer emulsion to the adhesive to the adhesion promoter to the surface treating agent is 100:(0.01-30):(0.001-5):(0.01-5). In the invention, the coating product prepared by using the water soluble polymer mixed emulsion reaches or excesses the technical and use requirements of national standards; meanwhile, the process steps of quantitatively coating adhesive and drying by hot air are saved on the basis of the conventional coating process which is universally used at home and abroad, so that the production cost of coating is reduced greatly, energy and raw materials are saved, the complexity of the production process is lowered, the labor intensity is relieved, the production efficiency is improved, and energy conservation and environmental protection are promoted.

Description

technical field [0001] The invention relates to a water-soluble polymer mixed emulsion, a coating film and a preparation method thereof. Background technique [0002] Water-soluble polymer emulsion coatings produced by social markets and modern industrial enterprises, such as PVDC, PVA, EVOH, AC, EAA, PET, etc., can fully adapt to or endow certain characteristics and performance of improved products when used in the production of coated products. It must be closely connected with the base material, and then the firm strength should meet certain requirements, so as to meet the requirements of the product coating film for various performance fields and uses. Therefore, before the application of water-soluble polymer emulsion coatings, it must be Surface treatment is carried out on the base material to be coated to enhance its wetting tension, and then a binder is applied on the surface of the base material after surface treatment, such as adhesive, adhesion promoter, surface t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/08C08L29/04C08L23/08C08L31/04C08L33/00C08K5/54C08K5/17C08K5/521C08K5/05C08K5/07C09D127/08C09D129/04C09D123/08C09D131/04C09D133/00C09D7/12B32B27/08C08J7/04D21H19/22
Inventor 苗小胜
Owner 苗小胜
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