Nacrous slurry and its prepn. technique

A pearlescent paste and pearlescent technology, applied in the coating and other directions, can solve the problem of low affinity, and achieve the effect of short production time, preventing secondary bonding and increasing output

Active Publication Date: 2006-09-20
临海市华宏涂料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the disadvantages of high polarity and low affinity to other organic media in pearlescent paste prepared by covering metal oxides on sheet-like substrates in the prior art, and provides a pearlescent paste with affinity for organic media and Its preparation process

Method used

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  • Nacrous slurry and its prepn. technique
  • Nacrous slurry and its prepn. technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The preparation process of embodiment 1

[0047] a. Phase inversion treatment: Put the pearlite crystals into pure water with conductivity ≤0.5us / cm to form an aqueous suspension of crystals, and mix dodecylbenzenesulfonic acid with a ratio of 1:1:1 by mechanical stirring Sodium, sodium dodecyl diphenyl ether disulfonate, castor oil sodium sulfate emulsifier and the aqueous suspension of pearlite crystals are mixed and put into a settling tank for sedimentation, and the stirring is stopped when the aqueous suspension of pearlite crystals is exhausted After settling for 1 hour, adopt spraying machinery to spray dichloromethane on the mixed liquid surface, and carry out phase inversion treatment;

[0048] b. Distillation: Put the crystallization after phase inversion treatment-extraction solvent mixture into the still, add the plasticizer as in Table 1, heat the still under stirring and vacuum conditions, turn on the vacuum pump, and adjust the vacuum degree to - 0.01Mpa...

Embodiment 6

[0059] The preparation process of embodiment 6

[0060] a. Phase inversion treatment: put the pearlite crystal into pure water with conductivity ≤0.5us / cm to form an aqueous suspension of crystals, and use mechanical stirring to mix the emulsifier castor oil sodium sulfate and the aqueous suspension of pearlite crystals. Mix and put into the settling tank to settle, and stop stirring when the aqueous suspension of pearlite crystals is finished; after settling for 2 hours, use a spraying machine to spray chloroform on the mixed liquid surface, and perform phase inversion treatment;

[0061] b. Distillation: Put the crystallization after phase inversion treatment-extraction solvent mixture into the still, add the plasticizer as in Table 2, heat the still under stirring and vacuum conditions, turn on the vacuum pump, and adjust the vacuum degree to - 0.05Mpa, distillation time is 3.5 hours;

[0062] c. Blending: add the above-mentioned distilled pearlescent crystals to other ing...

Embodiment 11

[0072] The preparation process of embodiment 11

[0073] a. Phase inversion treatment: put the pearlite crystal into pure water with conductivity ≤0.5us / cm to form an aqueous suspension of crystals, and use mechanical stirring to mix the emulsifier castor oil sodium sulfate and the aqueous suspension of pearlite crystals. Mix and put into the settling tank to settle, stop stirring when the aqueous suspension of pearlite crystals is finished; after settling for 3 hours, use a spraying machine to spray dibutyl butyl phosphonate on the mixed liquid surface, and perform phase inversion deal with;

[0074] b. Distillation: Put the crystallization after the phase inversion treatment-extraction solvent mixture into the distillation still, add the plasticizer as in Table 3, heat the still under stirring and vacuum conditions, turn on the vacuum pump, and adjust the vacuum degree to - 0.092Mpa, the distillation time is 2 hours;

[0075] c. Blending: add the above-mentioned distilled ...

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Abstract

This invention provides a method for preparing pearl plaster, which comprises pearl crystal 20-65 wt.%, plasticizer 2-50 wt.% and organic solvent 3-60 wt.%. The pearl plaster is prepared by the steps of: phase-transformation treating, distilling and concocting. The pearl plaster in this invention has such advantages as high affinity to organic media, high brightness, simple manufacturing process and short manufacturing time, while has no coagulation or aggregation.

Description

technical field [0001] The invention relates to a pearlescent paste and a preparation process thereof, in particular to a pearlescent paste prepared by using various components and a preparation process thereof, belonging to the field of fine chemical industry. Background technique [0002] Pearlescent paste or pearlescent coating is a kind of flake coating with high refractive index. It has good gloss and can present a shimmering metallic texture. It is widely used in the coating of cars, furniture, machines, etc. or the surface treatment of resin buttons and handicrafts. The existing pearlescent paste is prepared by covering the sheet-shaped substrate with a transparent or translucent metal oxide with a high refractive index, so that the reflected light from the interface of the sheet-shaped substrate covering layer and the reflected light from the surface of the covering layer The mutual interference between the reflected light of the incident light emits the color of int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/00
Inventor 陈国贵
Owner 临海市华宏涂料股份有限公司
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