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A kind of anti-adhesive water-based acrylic emulsion and its preparation method and application

A water-based acrylic and emulsion technology, applied in the field of polymers, can solve the problems of limited application, hot stickiness, cold brittleness, etc., and achieve the effects of simple preparation method, easy temperature control, and low price

Active Publication Date: 2021-05-18
NANJING REGAL POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, one-component acrylic resin has the disadvantage of hot stickiness and cold brittleness, which limits its application in furniture, toys, artificial leather and other fields.

Method used

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  • A kind of anti-adhesive water-based acrylic emulsion and its preparation method and application

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preparation example Construction

[0040] A preparation method of an anti-adhesive water-based acrylic emulsion, comprising the following steps:

[0041] (1) Add the compound emulsifier into the deionized water, after stirring evenly, add the soft monomer, methacrylic acid, hard monomer and cross-linking monomer and stir for more than 30 minutes;

[0042] (2) Add the initiator and ammonium bicarbonate into deionized water and stir evenly;

[0043] (3) Take another compound emulsifier and add it to deionized water, start stirring, raise the temperature to 80-85°C, then add the initiator and 4% of the pre-emulsion prepared in step (1) in sequence, and after the reaction starts, add the step (2) The prepared solution and the pre-emulsion prepared in the remaining step (1), the dropwise addition time is 1.5-3h, after the dropwise addition is completed, continue to react for 1-3h, cool down to 30-45°C, adjust the pH to 7-9, Finally, the aqueous acrylic emulsion was obtained by filtration.

[0044] Application of t...

Embodiment 1

[0046] A kind of anti-adhesive water-based acrylic emulsion of the present invention, its formula is shown in Table 1.

[0047] A kind of preparation method of anti-sticking back water-based acrylic emulsion of the present invention, comprises the following steps:

[0048] (1) Add 0.73g of sodium dodecyl diphenyl ether disulfonate and 0.45g of nonionic emulsifier A-980 into 77.50g of deionized water. After stirring evenly, add 15g of butyl acrylate and 1g of methacrylic acid , 75g of methyl methacrylate, 1.08g of hydroxyethyl methacrylate, 1.27g of N-methylolacrylamide, 0.76g of vinyltriethoxysilane, stirring for 30min;

[0049] (2) Add 0.15 parts of ammonium persulfate and 0.20 g of ammonium bicarbonate into 5.50 g of deionized water, and stir evenly;

[0050] (3) Take another 0.4g of sodium dodecyl diphenyl ether disulfonate, 0.33 parts of nonionic emulsifier A-980 and 1.22 parts of nonionic emulsifier acetylene glycol (surfadol 541H), and add them to 27g of deionized In w...

Embodiment 2

[0053] A kind of anti-adhesive water-based acrylic emulsion of the present invention, its formula is shown in Table 1.

[0054] A kind of preparation method of anti-sticking back water-based acrylic emulsion of the present invention, comprises the following steps:

[0055] (1) Add 1.73g of sodium dodecyl diphenyl ether disulfonate and 0.95g of nonionic emulsifier A-980 into 80.50g of deionized water. After stirring evenly, add 16.05g of butyl acrylate, methacrylic acid 2.19g, methyl methacrylate 77.88g, ethylene glycol dimethacrylate 1.74g, N-methylolacrylamide 1.04g, vinyltriethoxysilane 1.22g, stir for 30min;

[0056] (2) Add 0.45g of ammonium persulfate and 0.49g of ammonium bicarbonate into 7.50g of deionized water, and stir evenly;

[0057] (3) Take another 0.4g of sodium dodecyl diphenyl ether disulfonate, 0.83 parts of nonionic emulsifier A-980 and 0.02g of nonionic emulsifier acetylene glycol (surfadol 541H), and add it to 30g of deionized In water, start stirring, h...

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Abstract

The invention discloses an anti-sticking water-based acrylic emulsion and its preparation method and application. The weight parts of its formula are: 15-17 parts of soft monomer; 75-80 parts of hard monomer; 1-3 parts of methacrylic acid. ; 3-5 parts of cross-linking monomer; 3-5 parts of composite emulsifier; 0.2-0.8 parts of initiator; 0.5-1 part of ammonia; 0.2-0.8 parts of ammonium bicarbonate; 110-125 parts of deionized water. The raw materials for preparing the anti-sticking water-based acrylic emulsion of the present invention are easy to obtain and low in price, and are suitable for industrial production; the preparation method is simple, the temperature is easy to control, and the particle size of the obtained emulsion is uniform; the anti-sticking water-based acrylic emulsion is coated on a PVC board It has excellent anti-sticking properties, excellent adhesion, water resistance and freeze-thaw stability.

Description

Technical field [0001] The invention relates to an anti-sticking water-based acrylic emulsion and its preparation method and application, and belongs to the field of polymer technology. Background technique [0002] As people's awareness of environmental protection increases, environmentally friendly coatings are the future development direction of the coatings industry. Among them, acrylic paint has excellent gloss, water resistance, stability and construction performance. It is rich in raw materials and easy to design molecules. It can synthesize resin-based paints with different properties. [0003] PVC products are widely used in daily necessities, decorations, toys, artificial leather, wearables, furniture surface materials, etc. The performance of PVC surface coating determines the use value of PVC. Acrylic coating is a commonly used coating for PVC surface coating. Water-based acrylic emulsion uses water as the solvent, is non-flammable, non-explosive, has almost no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/06C08F220/20C08F220/58C08F230/08C08F222/14C08J7/04C08L27/06
CPCC08F220/14C08J2327/06C08J2433/12C08J7/0427C08F222/102C08F220/58C08F230/08C08F220/1804C08F220/06C08F220/20
Inventor 苏向东白天艳
Owner NANJING REGAL POLYMER
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