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A pearlescent pigment dispersion coating method and a pearlescent effect polycarbonate sheet

A technology of polycarbonate and pearlescent pigments, which is applied in the treatment of fibrous fillers and dyed polymer organic compounds, and can solve the problems of complexity, oxide layer wear, particle size wear reduction, poor appearance, narrow application range, etc., and achieve reduction Effects of damage, improved interface compatibility, and cost-effective advantages

Active Publication Date: 2022-04-01
北京航天凯恩新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is relatively complicated for the application of plastic pearlescent pigments, and the application direction of materials is mainly conductive materials, and the application range is narrow, which cannot solve the oxide layer wear and particle size wear reduction of pearlescent pigments in the extrusion process. Caused appearance problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A coating method for pearlescent pigments, comprising the steps of:

[0032] 1) Dissolve 100g of polycarbonate particles (Zhetie Dafeng Company 02-10R) in 2000g of dichloroethane at room temperature in a 3L three-necked flask equipped with mechanical stirring and ultrasonic waves to make a solution;

[0033] 2) Add 100g of pearlescent pigment (brand Pyrisma T30-00, Merck, Germany) under mechanical stirring, at room temperature, into the dichloroethane solution of polycarbonate, stir and disperse, and obtain pearlescent pigment polycarbonate di Chloroethane mixture;

[0034] 3) Add 200ml of absolute ethanol dropwise at room temperature at a rate of 20ml / min to the stirring pearlescent pigment polycarbonate dichloroethane mixture, the polycarbonate precipitates and coats the flaky pigment to obtain a polycarbonate coated Pearlescent pigments;

[0035] 4) Filtrating to obtain the polycarbonate-coated pearlescent pigment and drying to obtain a powdered polycarbonate-coate...

Embodiment 2

[0039] A coating method for pearlescent pigments, comprising the steps of:

[0040] 1) Dissolve 100g of polycarbonate particles (SC-1100R of South Korea Samsung Company) in 1000g of chloroform in a 3L three-necked flask equipped with mechanical stirring and ultrasonic waves at room temperature to make a solution;

[0041] 2) Add 300g pearlescent pigment (brand Pyrisma T10-08, Merck, Germany) and 100g pearlescent pigment (brand Iriodin 7217, Merck, Germany) to polycarbonate chloroform solution under mechanical stirring at room temperature In, stir and disperse to obtain the pearlescent pigment polycarbonate trichloromethane mixed solution;

[0042] 3) Add 100ml of methanol dropwise at room temperature at a rate of 20ml / min to the stirring pearlescent pigment polycarbonate chloroform mixture, polycarbonate precipitates and coats the flaky pigment to obtain polycarbonate-coated pearlescent pigment ;

[0043] 4) Filtrating to obtain the polycarbonate-coated pearlescent pigment a...

Embodiment 3

[0047] A coating method for pearlescent pigments, comprising the steps of:

[0048] 1) Dissolve 45g of polycarbonate powder (brand CLARNATE 2100, Yantai Wanhua) in 1800g of dichloromethane at room temperature in a 3L three-necked flask equipped with mechanical stirring and ultrasonic waves to make a solution;

[0049] 2) Add 5g of pearlescent pigment (brand YZ9126, Shanghai Yunzhu Company) into the dichloromethane solution of polycarbonate under mechanical stirring at room temperature, stir and disperse to obtain the pearlescent pigment-polycarbonate dichloromethane mixed solution ;

[0050] 3) Add 200ml of isopropanol dropwise at room temperature at a rate of 20ml / min to the stirring pearlescent pigment polycarbonate dichloromethane mixture, polycarbonate precipitates and coats flake pigments to obtain polycarbonate coating Pearlescent pigments;

[0051] 4) Filtrating to obtain the polycarbonate-coated pearlescent pigment and drying to obtain a powdered polycarbonate-coated...

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Abstract

The invention relates to a preparation technology of pearlescent pigment particles supported by polycarbonate. The particles are applied to polycarbonate plates with pearlescent effects to impart special effects such as flashing and pearlescent to the polycarbonate plates. The technical feature of the present invention is that after adding polycarbonate to an organic solvent to make a solution, adding pearlescent pigments with a weight of 0.1-400% of the polycarbonate, and fully stirring, adding a precipitant to precipitate the polycarbonate-coated pearlescent pigments. In the preparation of polycarbonate sheets with pearlescent effect, the prepared and mixed polycarbonate and additives are added to the single-screw extruder for melt extrusion, wherein the polycarbonate-coated pearlescent pigment is added from the side feeding part, and the dosage is 0.1‑7 servings. Compared with the traditional method, the polycarbonate plate prepared by the method of the invention has excellent mechanical properties, high light transmittance and strong flickering and discoloration effect.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a pearlescent effect pigment coating method and a pearlescent effect polycarbonate plate. Background technique [0002] Plastic sheets have good appearance and excellent plasticity, especially in terms of dyeing, which are easier to design and realize, and have incomparable advantages over glass. With the continuous improvement of people's requirements for the appearance of plastic sheets, plastic sheets with special appearance effects, such as plastic sheets with flashing and pearlescent effects, are more and more used in various fields of production and life. [0003] Taking the field of polycarbonate sheets as an example, polycarbonate sheets with transparency, high toughness, high strength and high heat resistance have a wide range of applications, and sheets with a thickness of 2-3mm can be processed by blistering and other processing to make them into train interi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/00C09C3/10C08K9/10C08K3/013C08L69/00
CPCC09C1/0015C09C3/10C08K9/10C08K3/013C08L69/00
Inventor 孟征郑骏驰姜昊钱晶孙兆懿舒帮建赵亚风
Owner 北京航天凯恩新材料有限公司
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