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Nano titanium dioxide anti-bacterial UV (ultraviolet) varnish and preparation method thereof

A nano-titanium dioxide and varnish technology, used in biocide-containing paints, coatings, antifouling/underwater coatings, etc., can solve the problems of easy generation of stains and poor surface gloss, and achieve fast drying speed and preparation. The effect of short cycle time and simple preparation process

Inactive Publication Date: 2014-06-18
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now after the production of PVC gussets, its surface gloss is not good, and it is easy to produce stains after decoration, especially at present, PVC gussets are mostly used in rural areas, and dust is easy to absorb and affect its appearance

Method used

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Examples

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preparation example Construction

[0027] A preparation method of nano titanium dioxide antibacterial UV varnish, comprising the following steps:

[0028] Step 1. Preparation of Nano Titanium Dioxide Slurry

[0029] Take nano-titanium dioxide powder and n-butanol with a particle size of 20-80nm respectively according to the proportion, mix them and carry out ball-milling dispersion treatment, adjust the pH value of the mixture to 6-7 during the ball-milling process, to obtain nano-titanium dioxide slurry, for use;

[0030] Step 2, Preparation of Nano Titanium Dioxide Antibacterial Varnish

[0031] Take 3-5 parts of nano titanium dioxide slurry obtained in step 1, 30-50 parts of polyester acrylate, 20-30 parts of TMPTA, 3-10 parts of NPGDA, 5-10 parts of DMF, 0.5 parts of benzophenone according to parts by weight ~2 parts, 2-8 parts of active amine, 2-6 parts of 1-hydroxycyclohexyl phenyl ketone, 0.2-1 part of defoamer and 0.2-1 part of leveling agent;

[0032] First mix the nano titanium dioxide slurry with p...

Embodiment 1

[0034] Step 1. Preparation of Nano Titanium Dioxide Slurry

[0035] Take 20% of nano titanium dioxide powder with particle size of 20-80nm, 2% of dispersant n-butanol and 78% of water according to weight percentage, mix the three and carry out ball milling and dispersion treatment. During the ball milling process, adjust the pH value of the mixture to 6.5, finally obtain nano titanium dioxide slurry, for use;

[0036] Step 2, Preparation of Nano Titanium Dioxide Antibacterial Varnish

[0037] Take 3 parts by weight of nano titanium dioxide slurry obtained in step 1, 50 parts of polyester acrylate, 20 parts of TMPTA, 10 parts of NPGDA, 5 parts of DMF, 2 parts of benzophenone, 2 parts of active amine, 1-hydroxyl 6 parts of cyclohexyl phenyl ketone, 0.2 part of defoamer and 1 part of leveling agent;

[0038] First mix the nano titanium dioxide slurry with polyester acrylate, then add trihydroxy TMPTA, NPGDA, DMF, benzophenone, active amine, 1-hydroxycyclohexyl phenyl ketone, de...

Embodiment 2

[0040] Step 1. Preparation of Nano Titanium Dioxide Slurry

[0041] Take 40% of nano titanium dioxide powder with particle size of 20-80nm, 5% of dispersant n-butanol and 55% of water according to the weight percentage, mix the three and carry out ball milling and dispersion treatment, and adjust the pH value of the mixture to 6. Finally, the nano titanium dioxide slurry is obtained for use;

[0042] Step 2, Preparation of Nano Titanium Dioxide Antibacterial Varnish

[0043] Take 5 parts by weight of nano titanium dioxide slurry obtained in step 1, 30 parts of polyester acrylate, 30 parts of TMPTA, 3 parts of NPGDA, 10 parts of DMF, 0.5 parts of benzophenone, 8 parts of active amine, 1-hydroxyl ring 2 parts of hexyl phenyl ketone, 1 part of defoamer and 0.2 part of leveling agent;

[0044] First mix the nano titanium dioxide slurry with polyester acrylate, then add trihydroxy TMPTA, NPGDA, DMF, benzophenone, active amine, 1-hydroxycyclohexyl phenyl ketone, defoamer and level...

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Abstract

The invention relates to nano titanium dioxide anti-bacterial UV (ultraviolet) varnish and a preparation method thereof. The UV varnish comprises the following components of nano titanium dioxide paste, polyester acrylate, TMPTA (trihydroxymethyl propane triacrylate), NPGDA (dimethyltrimethylene glycol diacrylate), DMF (dimethyl formamide), benzophenone, active amine, 1-hydroxy cyclohexyl phenyl ketone, an organic silicon defoamer and an organic silicon leveler. The UV varnish is suitable for coating the surface of a PVC (polyvinyl chloride) gusset plate, is short in preparation cycle, simple in preparation process, low in production cost, relatively high in solid content, relatively good in glossiness, yellowing-resistant and high in adhesive force, and has the advantages of bacterial resistance, self cleaning capability, low odor, high drying speed and the like.

Description

technical field [0001] The invention relates to the technical field of antibacterial coatings, in particular to a nano-titanium dioxide antibacterial UV varnish and a preparation method thereof. Background technique [0002] PVC gusset is a ceiling material based on polyvinyl chloride resin, which is made by adding a certain amount of anti-aging agent, modifier and other additives, and is made by kneading, calendering, vacuum blistering and other processes. PVC gusset ceiling is especially suitable for ceiling decoration in kitchens and bathrooms. It has the advantages of light weight, moisture resistance, heat insulation, easy cleaning, and paintability. UV paint is the English abbreviation of Ultraviolet Curing Paint, that is, ultraviolet light curing paint, also known as photoinitiated coating, light curing coating. Automatic roller coating and shower coating on the surface of the furniture board by machinery and equipment, and the decomposition of the initiator under th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/06C09D7/12C09D5/16
Inventor 魏风军贾秋丽田艳丽
Owner HENAN UNIV OF SCI & TECH
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