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Capsule type hydrophobic acrylate emulsion, capsule structure and preparation method and application thereof

An acrylate, hydrophobic technology, used in antifouling/underwater coatings, biocide-containing paints, coatings, etc., to solve the problems of unstable hydrophobic lubricants and easy spillage

Active Publication Date: 2021-04-13
CARPOLY CHEM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the later application process, it was found that the hydrophobic lubricating fluid was not stable, and it was easy to overflow after 10-30 days of storage, and formed shrinkage cavities during the coating film formation process

Method used

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  • Capsule type hydrophobic acrylate emulsion, capsule structure and preparation method and application thereof
  • Capsule type hydrophobic acrylate emulsion, capsule structure and preparation method and application thereof
  • Capsule type hydrophobic acrylate emulsion, capsule structure and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A capsule-type hydrophobic acrylate emulsion, which is made of the following components in parts by weight: 100 parts of acrylate emulsion, 2.0 parts of hydrophobic lubricant, 1.0 part of silane oligomer, 0.1 part of crosslinking auxiliary agent, and 0.1 part of wetting agent , 0.05 part of pH adjuster.

[0046] The acrylate emulsion is Bardford RS-998A emulsion.

[0047] The hydrophobic lubricant is polydimethylsiloxane with a viscosity of 100mm 2 / s (25°C).

[0048] Described silane oligomer is ShinEtsu KR-510 methyl / phenyl siloxane oligomer, viscosity is 100mm 2 / s, (25°C).

[0049] The cross-linking auxiliary agent is Momentive MP200.

[0050] The wetting agent is WET 270.

[0051] The pH regulator is Wacker BS168.

[0052] A capsule type hydrophobic acrylate emulsion is made up of the following components in parts by weight: the following steps are adopted:

[0053] (1) Injection of hydrophobic lubricant:

[0054] At room temperature (20±5°C), first d...

Embodiment 2

[0071] A capsule-type hydrophobic acrylate emulsion, which is made of the following components in parts by weight: 100 parts of acrylate emulsion, 5.0 parts of hydrophobic lubricant, 2.0 parts of silane oligomers, 0.2 parts of crosslinking auxiliary agent, and 0.2 parts of wetting agent , 0.1 part of pH adjuster.

[0072] The acrylate emulsion is Wanhua 8119 Emulsion.

[0073] The hydrophobic lubricant is polydimethylsiloxane with a viscosity of 50mm 2 / s(25

[0074] ℃).

[0075] Described silane oligomer is ShinEtsu KR-510 methyl / phenyl siloxane oligomer, viscosity is 100mm 2 / s, (25°C).

[0076] The cross-linking auxiliary agent is Momentive MP200.

[0077] The wetting agent is WET 270.

[0078] The pH regulator is Wacker BS168.

[0079] A capsule type hydrophobic acrylate emulsion is made up of the following components in parts by weight, and adopts the following steps:

[0080] (1) Injection of hydrophobic lubricant:

[0081] At room temperature (20±5°C), ...

Embodiment 3

[0098]A capsule-type hydrophobic acrylate emulsion, made of the following components in parts by weight: 100 parts of acrylate emulsion, 3.0 parts of hydrophobic lubricant, 1.5 parts of silane oligomer, 0.15 parts of crosslinking auxiliary agent, 0.2 part of wetting agent , 0.1 part of pH adjuster.

[0099] The acrylate emulsion is Dow SF-018 emulsion.

[0100] The hydrophobic lubricant is polydimethylsiloxane with a viscosity of 10mm 2 / s (25°C).

[0101] Described silane oligomer is ShinEtsu KR-500 methyl siloxane oligomer, viscosity is 25mm 2 / s, (25°C).

[0102] The cross-linking auxiliary agent is Momentive MP200.

[0103] The wetting agent is BYK-346.

[0104] The pH regulator is Wacker BS168.

[0105] A capsule type hydrophobic acrylate emulsion is made up of the following components in parts by weight: the following steps are adopted:

[0106] (1) Injection of hydrophobic lubricant:

[0107] At room temperature (20±5°C), first disperse the acrylate emulsi...

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Abstract

The invention relates to the field of hydrophobic materials, and discloses a capsule type hydrophobic acrylate emulsion, a capsule structure and a preparation method and application thereof. According to the capsule type hydrophobic acrylate emulsion, polydimethylsiloxane is used as a hydrophobic lubricating liquid, is introduced to the outer surfaces of latex particles through high-speed shearing, and then is coated with silane oligomer gel, so that a stable self-lubricating hydrophobic emulsion can be formed. According to the invention, the silane oligomer with a cross-linking protection effect is introduced into latex particles to form a shell layer, so that the problems that hydrophobic lubricating liquid is easy to overflow to cause the stability of the capsule type self-lubricating emulsion in a tank and the like are solved to a great extent. The stabilizing method provided by the invention is simple and effective, the stability of the coating effect of the hydrophobic lubricating liquid is excellent, no oil spilling phenomenon occurs after the emulsion is thermally stored for 30 days, and shrinkage cavities do not occur in a 150-micron scraped film; and the formed water-based coating can effectively eliminate the hysteresis phenomenon of liquid drops, and the sliding angle of the water drops can be smaller than 20 degrees.

Description

technical field [0001] The invention relates to the field of hydrophobic materials, in particular to a capsule-type hydrophobic acrylate emulsion, a capsule structure and a preparation method and application thereof that can solve the problem of emulsion polymerization instability simply and at low cost. Background technique [0002] In the field of construction engineering, stain-resistant coatings can effectively resist staining, provide a beautiful environment, reduce mold hazards, improve the service life of functional coatings, and have broad application value prospects. The realization of such functions depends critically on the composition and structure of the hydrophobic acrylate emulsion. The Chinese patent application with publication number CN103864982A, the US patent application with publication number US8507601B2 and the international application with international publication number WO2014097309A1PCT respectively disclose the technical solutions of hydrophobic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/03C08J3/24C08L33/04C08L83/04C09D133/04C09D5/16C09D7/65
CPCC08J3/03C08J3/24C09D133/04C09D5/1687C08J2333/04C08J2483/04C08L2205/025C08L83/04
Inventor 张浩杨帅谭振华汪金马汉峰
Owner CARPOLY CHEM GRP