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Alcohol-resistant water-based nano color paste

A nano-color paste and ethanol-resistant technology, which is applied in pigment paste, biocide-containing paint, anti-fouling/underwater coating, etc., can solve the problems of poor stability, uneven coloring, poor compatibility, etc. , to achieve the effect of solving the problem of sagging and dark bubbles, good coating effect and high dispersion efficiency

Inactive Publication Date: 2018-07-13
英德科迪颜料技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of them use pigment affinity group block copolymer dispersants such as EFKA-4560, EFKA-4540, BYK-180, BYK-183, BYK-185, Tego752W, HSM-3091, etc. to disperse them, but there are particle sizes Larger, wider distribution, poor transparency; easy to precipitate and poor stability; poor compatibility, uneven coloring; the color paste prepared by the above dispersant is diluted 10 times with 95% ethanol and then precipitates out, poor alcohol resistance

Method used

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  • Alcohol-resistant water-based nano color paste
  • Alcohol-resistant water-based nano color paste
  • Alcohol-resistant water-based nano color paste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of ternary block copolymer dispersant A, its steps are as follows:

[0027] In parts by weight, 25.0 parts of itaconic acid, 12.0 parts of sodium p-styrene sulfonate, 19.0 parts of methacryloxybutyl alcohol monophosphate, 1.6 parts of S, S'-bis(α,α' -Dimethyl-α"-acetic acid) trithiocarbonate, 80.0 parts of ethanol are added in the reaction kettle, logical N 2 Protection, start stirring and dissolve evenly, raise the temperature to 75°C, evenly add 10.0 parts of ethanol solution containing 10% azobisisobutyronitrile dropwise, finish dropping within 0.5h, keep at 75°C and continue the reaction for 6h; then slowly add 10 % NaOH solution and deionized water to adjust the pH to 7-8 to obtain the ternary block copolymer dispersant A.

Embodiment 2

[0029] A kind of ternary block copolymer dispersant B, its steps are as follows:

[0030] In parts by weight, 22.0 parts of itaconic acid, 13.0 parts of sodium p-styrenesulfonate, 15.0 parts of methacryloyloxyethyl alcohol monophosphate, 3.0 parts of 4,4'-dithiophenylacetic acid, 70.0 parts of Virahol joins in the reactor, logical N 2 Protection, start stirring and dissolve evenly, heat up to 70°C, add 8.0 parts of isopropanol solution containing 10% azobisisobutylamidine hydrochloride dropwise evenly, drop it within 0.5h, keep at 70°C to continue the reaction 6h; then slowly add 10% NaOH solution and deionized water to adjust the pH to 7-8 to obtain the ternary block copolymer dispersant B.

Embodiment 3

[0032] A kind of ternary block copolymer dispersant C, its steps are as follows:

[0033] In parts by weight, 16.0 parts of itaconic acid, 10.0 parts of sodium p-styrenesulfonate, 12.0 parts of methacryloyloxyalkylpropanol monophosphate, 2.0 parts of diethyldithiocarbamate Type quaternary ammonium salt, 60.0 parts of water are added in the reaction kettle, logical N 2 Protection, start stirring and dissolve evenly, raise the temperature to 85°C, evenly add 12.0 parts of an aqueous solution containing 10% azobisisobutyronitrile dropwise, finish dropping within 0.5h, keep at 85°C and continue the reaction for 6h; then slowly add 10% azobisisobutyronitrile NaOH solution and deionized water are adjusted to pH 7-8 to obtain the ternary block copolymer dispersant C.

[0034] The ternary block copolymer dispersant technical index that makes in the embodiment of the present invention is as shown in table 1:

[0035] Table 1 Ternary block copolymer water-based dispersant technical in...

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Abstract

The invention relates to an alcohol-resistant water-based nano color paste. The nano color paste consists of methyl 3-methoxypropionate (MMP), ethanol, a wetting agent, a toner, a ternary block copolymer dispersing agent, other auxiliary agents and water, wherein the ternary block copolymer dispersing agent is synthesized by using itaconic acid, sodium vinyl benzene sulfonate, methyl acryloyloxy alkyl alcohol phosphomonoester, a reversible addition-fragmentation chain-transfer polymerization (RAFT) chain transfer agent and an azo initiator through an RAFT technology, the number-average molar mass (Mn) of the ternary block copolymer dispersing agent is 3000-8000 and the polydispersity index (PDI) is less than or equal to 1.2. The alcohol-resistant water-based nano color paste prepared by the invention has excellent tinctorial strength, transparency, compatibility, alcohol resistance, storage stability, excellent corrosion resistance, high resistance to temperature of more than 200 DEG C, aging resistance, stain resistance, transference resistance, water resistance and salt fog resistance. The alcohol-resistant water-based nano color paste is widely used in the fields of woodware staining, water-based wood paint, water-based automobile paint, water-based plastic paint, water-based industrial paint, water-based glass stoving varnish, water-based metal stoving varnish, water-basedUV coatings, water surface printing ink and the like.

Description

technical field [0001] The invention relates to a water-based nano color paste, in particular to an ethanol-resistant water-based nano color paste, which belongs to the technical field of water-based color paste. Background technique [0002] With the improvement of people's material and cultural living standards, consumers have higher and higher requirements for the coating effect of furniture, which has led to the rapid growth of domestic wood coatings. Water-based in the paint industry has become inevitable, especially water-based industrial paints have higher requirements for water-based colorants, such as compatibility, tinting strength, heavy metals do not exceed the standard, no carcinogens, no APO, high temperature resistance, aging resistance , Pollution resistance, migration resistance. [0003] At present, water-based colorants can meet the basic requirements of architectural coatings, but for water-based industrial coatings, compatibility, water resistance, salt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D17/00C09D5/08C09D5/18C09D5/16C08F293/00C08F222/02C08F212/14C08F230/02
CPCC08F212/14C08F222/02C08F230/02C08F293/005C08F2438/03C09D5/08C09D5/1687C09D5/18C09D17/001
Inventor 陆明许钧强刘敏匡民明徐业雄王松
Owner 英德科迪颜料技术有限公司
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