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Waterproof coating for water-based paperboards and preparation method thereof

A waterproof coating and cardboard technology, applied in paper coating, papermaking, coating, etc., can solve the problems of poor wear resistance, poor weather resistance, high price, etc., and achieve excellent waterproof performance, huge economic benefits, and simple preparation process.

Inactive Publication Date: 2015-05-20
HUNAN HUAWANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this paraffin emulsion waterproof coating also has disadvantages such as poor weather resistance, low adhesion, and poor wear resistance, making it difficult to achieve long-term moisture-proof and waterproof
In addition, there are also acrylic resin emulsions used as waterproof coatings. Although this acrylic resin emulsion coating has excellent weather resistance, heat resistance, and abrasion resistance, it also has the advantages of high adhesion and environmental protection as a coating, but its same There are shortcomings such as insufficient waterproof performance and high price, so it is difficult to carry out large-scale promotion and application in the field of waterproof coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Examples are given below to describe the present invention in detail.

[0027] Comprising the following raw materials in parts by mass:

[0028] Paraffin emulsion 60 parts

[0029] 100 parts of styrene-acrylic emulsion

[0030] 10 parts epoxy resin

[0031] 30 parts of water

[0032] Leveling agent 0.6 parts

[0033] Lauryl ester 4 parts

[0034] Talc powder (drying agent) 6 parts

[0035] Ethylene glycol 5 parts

[0036] Kayson (preservative) 0.2 parts

[0037] Mineral oil defoamer 0.002 parts

[0038] AP-425 (rheology additive) 0.5 parts

[0039] When preparing, first add the above-mentioned water, defoamer, film-forming aid, paraffin wax emulsion, and styrene-acrylic emulsion into a stainless steel stirrer, mix at room temperature for 10 minutes, slowly add epoxy resin to the mixed solution and stir, and keep stirring 8min, then add ethylene glycol, leveling agent, talcum powder, lauryl alcohol ester, Kaithon, mineral oil defoamer in proportion, and stir fo...

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Abstract

The invention discloses a waterproof coating for water-based paperboards and a preparation method thereof. The coating is mainly prepared from water, an acrylate emulsion, a paraffin emulsion, an epoxy resin, a film forming additive, a flatting agent and other additives. Through the compounding of the paraffin emulsion and the acrylate emulsion, the advantages of the two emulsions are integrated, so that the glossiness, adhesion, abrasion resistance and water repellency of the waterproof coating are maximally increased; due to the addition of the epoxy resin and a drier, the water repellency, coating hardness and surface drying time of the coating can be further improved; and the waterproof coating disclosed by the invention, as a water-based resin coating, is solvent-free, non-toxic, green and environment-friendly in the process of production, and therefore, the waterproof coating has important economical and social benefits.

Description

technical field [0001] The invention relates to the technical field of water-based resin coatings, in particular to a water-based cardboard waterproof coating used for waterproofing the surface of cardboard and a preparation method thereof. Background technique [0002] Water-based resin waterproofing agent has the advantages of non-toxic, odorless, non-flammable, safe and reliable, can be used at room temperature, does not pollute the environment, and is easy to operate. Therefore, water-emulsion resin waterproofing agent has been widely used at home and abroad in recent years. [0003] At present, the most widely used in the cardboard industry is the paraffin emulsion type waterproof coating, which is mainly due to its advantages of simple preparation process, low cost and excellent lotus leaf effect. However, this paraffin emulsion waterproof coating also has disadvantages such as poor weather resistance, low adhesion, and poor wear resistance, making it difficult to achi...

Claims

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Application Information

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IPC IPC(8): D21H19/18D21H19/20D21H21/06D21H21/16
Inventor 李奎王会芬胡杨李晓
Owner HUNAN HUAWANG TECH
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