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PVC paint film with long afterglow and preparation method thereof

A long afterglow, paint film technology, applied in coatings, luminescent coatings, polyurea/polyurethane coatings, etc., can solve the problems of blackening of products, structural changes of luminous powder, influence of luminous effect, etc., to achieve good ductility, excellent long-term Afterglow luminous performance, the effect of improving overall performance and application range

Active Publication Date: 2017-10-03
广州雷诺丽特塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing luminous PVC film is generally prepared by directly adding rare earth luminous pigments to the PVC formula, and is prepared by calendering or casting. Since the luminous powder has a high hardness, strong friction with the metal cannot be avoided through the calendering process. Affect the saturation state of the luminous powder, and easily lead to blackening of the product. At the same time, strong friction will also cause changes in the structure of the luminous powder, affecting the luminous effect; moreover, the temperature of the calendering process will exceed 180 degrees Celsius at least, while the processing temperature of the luminous powder It must be lower than 170 degrees Celsius. At such a high temperature, the initial structural orientation of the luminous powder will be changed, which will seriously affect the luminous effect of the final product, making it impossible to produce high-quality long-lasting luminous films.

Method used

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  • PVC paint film with long afterglow and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of long afterglow PVC paint film, its preparation method comprises the steps: (1) at first, stir hydroxyacrylic acid resin with mixer for three minutes, make it distribute evenly, weigh 100 parts then, then, weigh 10 parts six Methylene diisocyanate, and add 33.3 parts of butanone, make it fully mixed with hexamethylene diisocyanate, slowly add it into the weighed hydroxyacrylic resin coating while stirring; then, add 0.5 parts of rare earth luminous Pigment whose composition can be expressed as Al 2 o 3 (Sr, Mg, Ca) O: (Eu, La, Dy) B, and stir evenly; measure the viscosity of the mixed material with a viscosity cup, and use butanone to adjust the viscosity of the material to 12 seconds, and finally, put The adjusted material is added to the circulation pump and waits to start;

[0022] (2) Unwinding: Install the prepared PVC film on the unwinding machine, and pull it through the coating roller, then through the oven, and finally fix it on the winding machine; ...

Embodiment 2

[0027] A kind of long afterglow PVC paint film, its preparation method comprises the steps: (1) at first, stir acrylic acid resin with a mixer for three minutes, make it evenly distributed, then weigh 100 parts, then weigh 22 parts Isocyanate, and add 22 parts of cyclohexanone, make it fully mixed with isocyanate, slowly add it into the weighed hydroxyacrylic resin coating while stirring; then, add 3 parts of rare earth luminous pigment, its composition can be expressed as Al 2 o 3 (Sr, Mg, Ca)O: (Eu, La, Dy)B, and stir evenly; measure the viscosity of the mixed material with a viscosity cup, and use cyclohexanone to adjust the viscosity of the material to 15.5 seconds, and finally, Add the adjusted material to the circulation pump and wait for it to start;

[0028] (2) Unwinding: Install the prepared PVC film on the unwinding machine, and pull it through the coating roller, then through the oven, and finally fix it on the winding machine;

[0029] (3) Start up: adjust the r...

Embodiment 3

[0033] A kind of long afterglow PVC paint film, its preparation method comprises the steps: (1) at first, acrylic polyether resin is stirred three minutes with mixer, makes its distribution uniform, then weighs 100 parts, then, weighs 33.3 parts of six sub- Methyl diisocyanate, and add 10 parts of ethyl acetate, make it fully mixed with hexamethylene diisocyanate, slowly add it into the weighed polyether resin coating while stirring; then, add 5 parts of rare earth luminous pigment, Its composition can be expressed as Al 2 o 3 ·(Sr, Mg, Ca)O:(Eu, La, Dy)B, and stir evenly; use a viscosity cup to measure the viscosity of the mixed material, and use ethyl acetate to adjust the viscosity of the material to 18 seconds, and finally, Add the adjusted material to the circulation pump and wait for it to start;

[0034] (2) Unwinding: Install the prepared PVC film on the unwinding machine, and pull it through the coating roller, then through the oven, and finally fix it on the windin...

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Abstract

The invention discloses a PVC paint film with long afterglow. The PVC paint film comprises a PVC film and a noctilucent coating on the PVC film. The noctilucent coating is prepared from the following raw materials by weight: 100 parts of acrylate or polyurethane, 10 to 33.3 parts of a curing agent, 10 to 33.3 parts of a solvent and 0.5 to 5 parts of a rare earth noctilucent pigment. Meanwhile, the invention also discloses a preparation method for the PVC paint film with long afterglow. The PVC paint film with long afterglow prepared by using the method has good ductility, weatherability and scratch resistance and excellent long-afterglow noctilucence performance; and the luminescence duration of the film can reach 6 to 8 h, far longer than the luminescence duration (2 to 3 h) of common PVC films.

Description

technical field [0001] The invention relates to the field of outdoor advertising and warning technology, in particular to a long afterglow PVC paint film and a preparation method thereof. Background technique [0002] The existing luminous PVC film is generally prepared by directly adding rare earth luminous pigments to the PVC formula, and is prepared by calendering or casting. Since the luminous powder has a high hardness, strong friction with the metal cannot be avoided through the calendering process. Affect the saturation state of the luminous powder, and easily lead to blackening of the product. At the same time, strong friction will also cause changes in the structure of the luminous powder, affecting the luminous effect; moreover, the temperature of the calendering process will exceed 180 degrees Celsius at least, while the processing temperature of the luminous powder It must be lower than 170 degrees Celsius. At such a high temperature, the initial structural orien...

Claims

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Application Information

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IPC IPC(8): C08J7/04C08J5/18C09D5/22C09D175/04C09D175/08C08L27/06
CPCC08J5/18C08J7/0427C08J2327/06C09D5/22C09D175/04C09D175/08
Inventor 江溪曾勇军
Owner 广州雷诺丽特塑料有限公司
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