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Preparation method of water-soluble acrylic resin

A technology of water-soluble acrylic acid and acrylic acid, which is applied in the direction of coating, etc., can solve problems such as poor film-forming properties, affecting product gloss, film-forming continuity, and potential safety hazards of packaging contents, and achieves easy film-forming, excellent coating properties, high gloss effect

Inactive Publication Date: 2010-05-05
NANTONG GAOMENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High glass transition temperature Tg latex particles are easy to pulverize, and their own film-forming properties are poor. In order to improve film-forming properties, it is necessary to add high-boiling point and difficult-to-volatilize solvents as film-forming aids. The existence of a large amount of solvent-based film-forming aids affects the product. The glossiness and continuity of film formation, in some fields with relatively high food safety performance requirements, the existence of a large number of solvent-based additives makes the contents of the package have greater safety hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The present embodiment provides a kind of preparation method of water-soluble acrylic resin, this method comprises:

[0039] The resin comprises the following components by weight percentage:

[0040] The following components by weight percentage:

[0041] Hard monomer 10~30%

[0042] Methyl acrylate 5-60%

[0043] Acrylic acid 20~90%

[0044] Methacrylic acid 5~30%

[0045] Soft monomer 10~30%

[0046] Initiator 0.5~5%

[0047] Ethanol 10~30%

[0048] Tert-butyl hydroperoxide 0.1~0.5%

[0049] Hanging white block 0.1~0.5%

[0050] Deionized water 30~60%

[0051] PH regulator 1~10%

[0052] Organic amine salt forming agent 0.1~3%

[0053] Non-ionic wetting agent 0.05~1.5%

[0054] Mineral oil defoamer 0.05~1.5%;

[0055] Add deionized water and all ethanol which account for 60-75% of the total weight of deionized water into the container, stir at a speed of 80-120 rpm, heat up to 80-84°C, and dropwise add the hard monomer, methyl acrylate The monomer mixed...

Embodiment 2

[0072] The present embodiment provides a kind of preparation method of water-soluble acrylic resin, carries out according to the following steps:

[0073] First get each raw material by the weight of following formula:

[0074] water 200g

[0075] Acrylic 70g

[0076] Methacrylic acid 15g

[0077] Methyl acrylate 15g

[0078] Methyl methacrylate 15g

[0079] Butyl Acrylate 35g

[0080] Ammonium persulfate 2.5 g

[0081] Ethanolamine 5 g

[0082] Ethanol 100g

[0083] Non-ionic surfactant 0.3 g

[0084] Silicone defoamer 0.2 g

[0085] tert-butyl hydroperoxide 0.8 g

[0086] Hanging white block 0.8g

[0087] Ammonia 3.2 g

[0088] Add 120 grams of water and all ethanol to the three-necked flask, and stir at a speed of 80 to 120 rpm, raise the temperature to 80 to 82°C in a water bath, and then dropwise add acrylic acid, methacrylic acid, methyl acrylate, The monomer mixture formed by mixing methyl methacrylate and butyl acrylate, while adding H 2 O / APS (deionized ...

Embodiment 3

[0093] The present embodiment provides a kind of preparation method of water-soluble acrylic resin, carries out according to the following steps:

[0094] First get each raw material by the weight of following formula:

[0095] water 250g

[0096] Acrylic 85g

[0097] Methacrylic acid 15g

[0098] Methyl acrylate 15g

[0099] Styrene 10 g

[0100] Methyl methacrylate 5 g

[0101] 2-Ethylhexyl Acrylate 20g

[0102] Potassium persulfate 1.5 g

[0103] Diethanolamine 5 g

[0104] Ethanol 100g

[0105] Non-ionic surfactant 0.3 g

[0106] Mineral oil-based defoamer 0.2 g

[0107] tert-butyl hydroperoxide 0.8 g

[0108] Hanging white block 0.6g

[0109] Ammonia 4.5 grams

[0110] Add 180 grams of water and all ethanol to the three-necked flask, and in the state of stirring at a speed of 80 to 120 rpm, raise the temperature to 80 to 82°C in a water bath, and then dropwise add acrylic acid, methacrylic acid, methyl acrylate, A monomer mixture formed by mixing styrene, me...

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PUM

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Abstract

The embodiment of the invention provides a preparation method of water-soluble acrylic resin. The resin comprises the following components according to defined weight percentages: hard monomer, methyl acrylate, acrylic acid, methylacrylic acid, soft monomer, initiator, ethanol, tert-butyl hydroperoxide, sodium formaldehyde sulfoxylate, deionized water, pH regulator, organic amine salt forming agent, nonionic wetting agent and mineral oil defoaming agent. The preparation method comprises the following steps: heating the mixed solution of water and ethanol to 80-84 DEG C, dropping monomer mixed solution and initiator while stirring, then heating to 80-100 DEG C for maturation, reducing the temperature to 70-75 DEG C, adding sodium formaldehyde sulfoxylate and tert-butyl hydroperoxide, keeping the temperature; adding organic amine salt forming agent, wetting agent and defoaming agent in the system while stirring, reducing the temperature, adjusting the pH value, filtrating and discharging to obtain the finished product. In the method of the invention, coating system with excellent coating property, easy film formation, high glossiness and good transparency can be prepared after the polymerization process by controlling the ratio of hydrophilic and hydrophobic monomers, controlling the neutralization process after finishing the reaction.

Description

technical field [0001] The invention relates to the preparation of resin coating materials, in particular to a preparation method of water-soluble acrylic resin. Background technique [0002] In the current flexible packaging design, the plastic-plastic composite structure accounts for the vast majority of the flexible packaging structure. This composite form requires two layers of plastic substrates for different purposes. Under the action of the bridge of the adhesive, they are combined to achieve the final use performance . However, due to the complex process of the composite structure; the large amount of raw materials used, resulting in waste of energy; and the differences in the technical level of various manufacturers, the quality of this composite structure is uneven. How to reduce the use of raw materials, simplify the complexity of the composite structure, and reduce the difficulty of use by manufacturers is a trend in the development of flexible packaging. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08F2/04C09D133/02
Inventor 李岗陈小锋沈峰
Owner NANTONG GAOMENG NEW MATERIAL