High-strength self-cleaning reflective film and preparation method thereof

A self-cleaning, reflective film technology, applied in the field of reflective film, can solve the problems of unstable metal reflective coating process control, easy aging of reflective film, etc., to achieve the effect of enhanced self-cleaning, tight fit, and rich source of raw materials

Active Publication Date: 2021-10-15
CHANGZHOU RIYUE REFLECTIVE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the current problems of easy aging of reflective film, unstable control of metal reflective coating process, self-cleaning polytetrafluoroethylene, etc., in

Method used

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  • High-strength self-cleaning reflective film and preparation method thereof
  • High-strength self-cleaning reflective film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] Example 1

[0044] S1: Preparation of transparent support layers

[0045] The aqueous polyurethane resin is used as a transparent support layer;

[0046] S2: Preparation of glass microead layers

[0047] (1) Glass microbeading for washing, drying, screening;

[0048](2) Use distilled water and ethanol according to the 1: 7 ratio of ethanol solvent, gase the solvent pH to 3, add silane coupling agent, sodium dodecyl sulfonate, ethylcellulose, dimethyl) to the solvent Silicone oil; according to the silane coupling agent in the modified solvent of 4%, sodium dodecyl sulfonate in the modified solvent is 1%, ethylcellulose in the modified solvent is 3%, and the dimethyl The silicone oil is 1% ultrasonic dispersion in the modified solvent, and stirring at 65 ° C for 4 h to obtain a modified solvent;

[0049] (3) Glass microbeads were added to the modified solvent, and stirred after 65 ° C, stirring to obtain a mixed liquid, cooled to 18 ° C filtering, and obtained the treated gla...

Example Embodiment

[0061] Example 2

[0062] S1: Preparation of transparent support layers

[0063] The aqueous polyurethane resin is used as a transparent support layer;

[0064] S2: Preparation of glass microead layers

[0065] (1) Glass microbeading for washing, drying, screening;

[0066] (2) The ethanol solvent was configured with distilled water and ethanol, and the sulfonate pH was adjusted to 4, and the solvent pH was added to the solvent, sodium dodecyl sulfate, ethylcellulose, dimethyl. Silicone oil; according to the silane coupling agent in the modified solvent of 6%, sodium dodecyl sulfate in the modified solvent is 2%, and ethylcellulose is present in the modified solvent of 8%, dimethyl The base silicone oil is dispersed in the modified solvent of the ultrasonic dispersion, and stirring at 70 ° C for 5 h to obtain a modified solvent; cooling to 19 ° C.

[0067] (3) Glass beads were added to the modified solvent, and stirred after the ultrasonic dispersion at 70 ° C, the mixture was sti...

Example Embodiment

[0079] Example 3

[0080] S1: Preparation of transparent support layers

[0081] The aqueous polyurethane resin is used as a transparent support layer;

[0082] S2: Preparation of glass microead layers

[0083] (1) Glass microbeading for washing, drying, screening;

[0084] (2) Use distilled water and ethanol to configure ethanol solvent according to 1: 9 ratio, grease the solvent pH to 6, add silane coupling agent, sodium dodecyl sulfonate, ethylcellulose, dimethyl. Silicone oil; according to the silane coupling agent in the modified solvent of 18%, sodium dodecyl sulfate in the modified solvent is 4%, ethylcellulose in the modified solvent is 3%, and the dimethyl The base silicone oil is decentralized in the modified solvent, and stirring at 80 ° C for 3 h to obtain a modified solvent; cooling to 25 ° C;

[0085] (3) When the glass microbeading step S2 (1) is added to step S2 (2) modified solvent, stirring at an ultrasonic dispersion at 80 ° C to obtain a mixed liquid, cooled to...

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Abstract

The invention provides a high-strength self-cleaning reflective film and a preparation method thereof. The reflective film comprises a transparent supporting layer, a glass bead layer, a reflective layer, a self-cleaning layer and a protective layer; the surfaces of glass beads are coated with organic modified films, so that the glass beads are changed from hydrophilicity to lipophilicity, and the single-layer tightly and uniformly distributed glass bead layer is easily formed; when the reflective layer is prepared, the scaly glass powder and the scaly aluminum powder are overlapped in parallel, so that permeation of water, air, corrosive ions and the like is effectively prevented, the reflectivity, permeation resistance and corrosion resistance of the reflective film are improved, and the service life is prolonged; the self-cleaning layer is prepared from polycarbonate and benzoxazine modified TiO2-SiO2 composite particles, and the prepared self-cleaning layer is free of fluorine, non-toxic, high in light transmittance, resistant to ultraviolet rays and durable in self-cleaning; and the introduction of the protective layer enhances the wear resistance and self-cleaning property of the reflective film, and the mechanical strength of the reflective film is greatly improved.

Description

technical field [0001] The invention relates to the field of reflective films, in particular to a high-strength self-cleaning reflective film and a preparation method thereof. Background technique [0002] Reflective film is a product with retroreflective light. Reflective film is usually used in traffic safety, warning clothing, etc., and plays an important role in the field of safety protection. At present, reflective film is widely used in safety protection fields such as moving barriers, road traffic, and clothing. [0003] In the prior art, glass beads are widely used in the manufacture of reflective films, but in actual production, glass beads are prone to agglomeration, bead stacking, etc., which affect the performance of reflective films and lead to a decrease in the quality of reflective films. [0004] Self-cleaning materials are widely used in daily life, such as building exterior walls, self-cleaning glass, etc. At present, more hydrophobic materials are used ...

Claims

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Application Information

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IPC IPC(8): B32B27/40B32B17/00B32B17/10B32B33/00B32B37/24B32B37/00C09D163/00C09D5/33C09D7/62C09D169/00C09D183/04C09D5/08B05D5/06B05D5/00B05D1/38B05D7/24B05D5/08
CPCB32B27/40B32B27/14B32B5/16B32B33/00B32B37/24B32B37/00C09D163/00C09D5/004C09D7/62C09D169/00C09D183/04C09D4/00C09D5/08B05D5/063B05D5/00B05D7/584B05D1/38B05D7/24B05D5/08B32B2037/243B32B2264/101B32B2307/416B32B2307/412B32B2307/754B32B2307/7265B32B2307/714B32B2307/71B32B2307/554B32B2255/04B32B2255/28B32B2255/26B32B2255/20B32B2255/24B32B2255/205C08K2003/0812C08K2003/2241C08G77/04C08K9/06C08K3/08C08K3/40C08K9/04C08K3/22C08K3/36
Inventor 陈标
Owner CHANGZHOU RIYUE REFLECTIVE MATERIAL
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