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Resin-free carbon black color paste as well as preparation method and application thereof

A black paste, resin-free technology, applied in the direction of pigment paste, etc., can solve the problems of hindered transformation, achieve the effect of easy dispersion, ensure dispersion, and reduce production costs

Pending Publication Date: 2022-07-29
SHANGHAI BAIYAN IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, most painting companies still use organic solvent-based coatings, and the transformation of "oil to water" is hindered

Method used

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  • Resin-free carbon black color paste as well as preparation method and application thereof
  • Resin-free carbon black color paste as well as preparation method and application thereof
  • Resin-free carbon black color paste as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A resin-free carbon black slurry is prepared through the following steps:

[0042] Step S1: choose 30g solvent, choose propylene glycol methyl ether acetate (PMA) for use;

[0043] Step S2: add 22 g of hyperdispersant (anchoring part monomers: styrene, butyl acrylate; stabilizing part monomers: ammonium acrylate, methoxy polyethylene glycol acrylate, Methoxy polypropylene glycol acrylate), add 7g ethylene glycol (industrial grade) cosolvent, and disperse evenly;

[0044] Step S3: slowly add 40g of carbon black pigment Special Black100, then disperse at high speed for half an hour;

[0045] Step S4: sanding by a sand mill (vertical or horizontal) until the particle size is less than 500 nm;

[0046] Step S5: Add 0.5g polyether block modified silicone oil (PBMS, active ingredient content 25%) defoamer, 0.2g 2-methyl-4-isothiazolin-3-one (MIT) preservative, 0.3g pH regulator ammonia water, etc., stir at low speed for neutralization and defoaming;

[0047] Step S6: Filt...

Embodiment 2

[0050] Step S1: choose 30g mixed solvent, choose 20g propylene glycol methyl ether acetate (PMA) and 10g ethylene glycol butyl ether acetate (CAC);

[0051] Step S2: In 30g mixed solvent in S1, add 22g hyperdispersant (anchoring part monomers: styrene, butyl acrylate; stabilizing part monomers: ammonium acrylate, methoxy polyethylene glycol acrylate, methoxy Polypropylene glycol acrylate), add 7g ethylene glycol (industrial grade) cosolvent, and disperse evenly;

[0052] Step S3: slowly add 40g of carbon black pigment Special Black100, then disperse at high speed for half an hour;

[0053] Step S4: sanding by a sand mill (vertical or horizontal) until the particle size is less than 500 nm;

[0054] Step S5: Add 0.5g polyether block modified silicone oil (PBMS, active ingredient content 25%) defoamer, 0.2g 2-methyl-4-isothiazolin-3-one (MIT) preservative, 0.3g pH regulator ammonia water, etc., stir at low speed for neutralization and defoaming;

[0055] Step S6: Filtration t...

Embodiment 3

[0058] Step S1: choose 30g solvent, choose Virahol;

[0059] Step S2: In 30g of solvent in S1, add 22g of hyperdispersant (anchoring part monomers: vinylpyridine, butyl acrylate; stabilizing part monomers: ammonium acrylate, methoxy polyethylene glycol acrylate, methoxy Polypropylene glycol acrylate), add 7g propylene glycol (industrial grade) cosolvent, and disperse evenly;

[0060] Step S3: slowly add 40g of carbon black pigment Special Black100, then disperse at high speed for half an hour;

[0061] Step S4: sanding by a sand mill (vertical or horizontal) until the particle size is less than 500 nm;

[0062] Step S5: Add 0.5g polyether block modified silicone oil (PBMS, active ingredient content 25%) defoamer, 0.2g 2-methyl-4-isothiazolin-3-one (MIT) preservative, 0.3g pH regulator diethylamine, etc., stir at low speed for neutralization and defoaming;

[0063] Step S6: Filtration to obtain resin-free carbon black slurry (Sample 3).

[0064] Step S7: 10 g of color paste...

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Abstract

The invention discloses resin-free carbon black color paste which comprises the following components: 0.3-0.5% of a carbon black pigment, a cosolvent, a hyperdispersant, a defoaming agent and the balance of a solvent. 0.1 to 0.3% of a pH conditioning agent; 0.1 to 0.2 percent of preservative; the invention also discloses a preparation method of the resin-free carbon black color paste and application of the resin-free carbon black color paste. A hyperdispersant synthesized by controlled free radical polymerization is adopted, so that the color paste is well dispersed in a conventional water-based paint resin system, and the stability of pigment carbon black particles in the paint and the high intermiscibility of the color paste and a paint base material are kept, so that the high glossiness of a paint film is kept.

Description

technical field [0001] The invention relates to the technical field of water-based coatings, in particular to a resin-free carbon black paste and a preparation method and application thereof. Background technique [0002] Over the years, in the spectacle frame paint industry, comprehensively promoting the environment-friendly transformation of "oil to water" has been put on the agenda. At the end of 2018, Zhejiang Province proposed that in the next five-year plan, the "oil-to-water" painting of spectacle frames should complete the rigid target of more than 30%. However, at present, most painting companies still use organic solvent-based coatings, which hinders the transformation of "oil to water". One of the reasons is that the key technical indicators such as gloss and hardness of water-based coatings are inferior to oil-based coatings. In particular, it has become a technical problem to ensure that the gloss of the water-based paint film is comparable to that of the oil-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D17/00
CPCC09D17/002C09D17/005
Inventor 金玉子周定兴周定正
Owner SHANGHAI BAIYAN IND