Preparation method of high-dispersity ultramarine pigment, pigment obtained through preparation method and application of pigment

A technology of high dispersibility and ultramarine blue, applied in the field of preparation and application of ultramarine blue pigments, can solve the problems of lens Tyndall effect, poor dispersibility, affecting product performance, etc., and achieve the effects of reducing sedimentation, improving dispersion, and improving dispersion performance.

Active Publication Date: 2021-08-06
NANJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional ultramarine blue pigments have poor dispersion in CR39, which will cause obvious Tyndall effect on the lens during application, which seriously aff

Method used

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  • Preparation method of high-dispersity ultramarine pigment, pigment obtained through preparation method and application of pigment
  • Preparation method of high-dispersity ultramarine pigment, pigment obtained through preparation method and application of pigment
  • Preparation method of high-dispersity ultramarine pigment, pigment obtained through preparation method and application of pigment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Take 1g of ultramarine blue pigment, 30g of methylene chloride and 20g of mixed zirconia ball milling beads in a 100mL ball milling jar, add 0.5g of diethylene glycol bischloroformate, 0.5g of triethylamine and 0.03g of DMF at the same time, seal the jar Then place it in a planetary ball mill and react at 400rpm for 3h to obtain an acyl chloride ultramarine dispersion; then close the ball mill, open the ball mill tank, add 0.35g of diethylamine to it, seal the tank, and continue to react at 400rpm for 3h. After the end, the mixed solution is firstly removed by dichloromethane, then washed with ethanol and deionized water to remove unreacted ester, amine and ammonium salt of acid binding, and finally dried and ground to obtain modified ultramarine blue.

[0038] see figure 1 , compared with the ultramarine blue raw material (a), the acyl chloride ultramarine (b) is respectively at 790cm -1 、1265cm -1 、1745cm -1 、2960cm -1 There is a new absorption peak at 790cm -1 T...

Embodiment 2

[0041] Take 1g of ultramarine blue pigment, 25g of dichloroethane and 30g of mixed zirconia ball milling beads in a 100mL ball milling jar, add 0.4g of diethylene glycol bischloroformate, 1.0g of triethylamine and 0.02g of DEF at the same time, seal After the tank is placed in a planetary ball mill, react at a speed of 450rpm for 3.5h to obtain an acid chloride ultramarine dispersion; then close the ball mill, open the ball mill tank, add 0.40g of diethylamine to the tank, and continue to react at a speed of 450rpm 3.5h. After the mixture is finished, the dichloromethane is removed first, then the unreacted ester, amine and acid-binding ammonium salt are removed by washing with ethanol and deionized water, and finally the modified ultramarine is obtained by drying and grinding.

Embodiment 3

[0043] Take 1g of ultramarine blue pigment, 28g of trichloroethane and 40g of mixed zirconia ball milling beads in a 100mL ball milling jar, add 0.6g of diethylene glycol bischloroformate, 0.8g of pyridine and 0.05g of DMF at the same time, after sealing the jar Placed in a planetary ball mill, reacted at 500rpm for 4h to obtain acyl chloride ultramarine dispersion; then closed the ball mill, opened the ball mill tank, then added 0.50g of diethylamine to seal the tank, and continued to react at 500rpm for 4h. After the mixture is finished, the dichloromethane is removed first, then the unreacted ester, amine and acid-binding ammonium salt are removed by washing with ethanol and deionized water, and finally the modified ultramarine is obtained by drying and grinding.

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Abstract

The invention discloses a preparation method and application of a high-dispersity ultramarine pigment, and the preparation method comprises the following steps: dissolving an ultramarine raw material in a solvent to form pigment color paste, and then adding the pigment color paste into a ball milling tank containing mixed zirconia beads; adding diethylene glycol dichloro-formate, an acid-binding agent and a catalyst into a ball-milling tank, sealing the tank, and putting the ball-milling tank into a ball mill for ball-milling reaction to obtain an acylating chlorination ultramarine dispersion liquid; after the reaction is finished, opening the ball-milling tank, adding excessive diethylamine into the ball-milling tank, sealing the tank, and continuing the ball-milling reaction; and finally, removing the solvent from the mixed solution, washing with ethanol and deionized water, and finally drying and grinding to obtain the modified ultramarine pigment. The modified ultramarine prepared by taking diethylene glycol dichloro-formate as a bridging agent and diethylamine as a modifier has better dispersity and dispersion stability in CR39 resin, and colorless and transparent lenses can be obtained after curing.

Description

technical field [0001] The invention belongs to the preparation and application of ultramarine blue pigments, and in particular relates to an ultramarine blue pigment with high dispersibility in CR39, a preparation method and application thereof. Background technique [0002] Ultramarine blue pigment is a dark blue inorganic pigment with excellent light fastness, alkali resistance, heat resistance and weather resistance. The ultraviolet-visible absorption peak of ultramarine blue is around 595nm, which belongs to the wavelength range of yellow light, so it can effectively eliminate the yellow color light in white products and play a whitening effect. [0003] The scientific name of CR39 is allyl diglycol carbonate, which is the most widely used material for the production of ordinary resin lenses. As a thermosetting material, the parameters of the material properties are very suitable as optical lenses. CR39 monomer is in liquid state, and it is polymerized and solidified ...

Claims

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Application Information

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IPC IPC(8): C09C1/32C09C1/40C09C3/04C09C3/08C08K3/34C08K9/04
CPCC01P2004/02C01P2004/03C08K3/34C08K9/04C09C1/32C09C1/40C09C3/003C09C3/006C09C3/041C09C3/043C09C3/08
Inventor 陈洪龄沈斐花蕾
Owner NANJING UNIV OF TECH
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