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Pearlescent pigment dispersing and coating method and polycarbonate plate with pearlescent effect

A polycarbonate and pearlescent pigment technology, applied in the direction of fibrous fillers, dyed polymer organic compounds, etc., can solve the problems of complex, oxide layer wear, particle size wear, poor appearance, narrow application range, etc.

Active Publication Date: 2021-09-14
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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  • Pearlescent pigment dispersing and coating method and polycarbonate plate with pearlescent effect

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) 100g of pearlescent pigment (brand name Pyrisma T30-00, Merck, Germany) is added under mechanical stirring at room temperature in the dichloroethane solution of polycarbonate, stirred and dispersed to obtain pearlescent pigment polycarbonate dichloride 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 is precipitated and the flake pigment is coated to obtain a polycarbonate coated Pearlescent pigments;

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

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's Samsung Company) in 1000g of chloroform at room temperature in a 3L three-necked flask equipped with mechanical stirring and ultrasonic waves to make a solution;

[0041] 2) 300g pearlescent pigment (brand name Pyrisma T10-08, Merck of Germany), 100g pearlescent pigment (brand Iriodin 7217, Merck of Germany) was added to the chloroform solution of polycarbonate 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, the polycarbonate precipitates and coats the flaky pigment to obtain a polycarbonate-coated pearlescent pigment ;

[0043] 4) Filtrating to obtain the polycarbonate-c...

Embodiment 3

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

[0048] 1) 45g of polycarbonate powder (brand CLARNATE 2100, Yantai Wanhua) was dissolved 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 (designation YZ9126, Shanghai Yunzhu Company) under mechanical stirring at room temperature into the methylene chloride solution of polycarbonate, 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 methylene chloride mixture, the polycarbonate precipitates and coats the flaky pigment to obtain a polycarbonate-coated Pearlescent pigments;

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

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Abstract

The invention relates to a preparation technology of a pearlescent pigment particle loaded by polycarbonate, and the particle is applied to a polycarbonate plate with a pearlescent effect and plays a role in endowing the polycarbonate plate with special effects of flickering, pearlescent and the like. The method is technically characterized by comprising the steps of adding polycarbonate into an organic solvent to prepare a solution, adding pearlescent pigment accounting for 0.1-400% of the weight of the polycarbonate, fully stirring, and adding a precipitator to separate out the pearlescent pigment coated with the polycarbonate. In the preparation of the polycarbonate plate with the pearlescent effect, prepared and mixed polycarbonate and auxiliaries are added into a single-screw extruder to be subjected to melt extrusion, 0.1-7 parts of polycarbonate coated pearlescent pigment is added from a side feeding part. Compared with a traditional method, the polycarbonate plate prepared by the method disclosed by the invention has excellent mechanical properties, high light transmittance and strong flickering and color-changing effects.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a method for coating pearlescent effect pigments 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 i...

Claims

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Application Information

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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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