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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 order to efficiently and stably prepare self-cleaning reflective film, the present invention proposes a high-strength self-cleaning reflective film and its preparation method

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

Embodiment 1

[0044] S1: Preparation of transparent support layer

[0045] Water-based polyurethane resin is selected as the transparent support layer;

[0046] S2: Preparation of glass bead layer

[0047] (1) glass beads are washed, dried and screened;

[0048](2) Use distilled water and ethanol to configure ethanol solvent in a ratio of 1:7, add oxalic acid to adjust the pH of the solvent to 3, add silane coupling agent, sodium dodecylsulfonate, ethyl cellulose, dimethyl Silicone oil; according to the content of silane coupling agent in the modified solvent is 4%, the content of sodium dodecylsulfonate in the modified solvent is 1%, the content of ethyl cellulose in the modified solvent is 3%, dimethyl The base silicone oil content in the modified solvent is ultrasonically dispersed at 1%, and stirred at 65°C for 4 hours to obtain the modified solvent;

[0049] (3) Add glass microbeads to the modified solvent, stir at 65°C after ultrasonic dispersion to obtain a mixed solution, cool to...

Embodiment 2

[0062] S1: Preparation of transparent support layer

[0063] Water-based polyurethane resin is selected as the transparent support layer;

[0064] S2: Preparation of glass bead layer

[0065] (1) glass beads are washed, dried and screened;

[0066] (2) Prepare ethanol solvent with distilled water and ethanol according to the ratio of 1:8, add oxalic acid to adjust the pH of the solvent to 4, add silane coupling agent, sodium dodecylsulfonate, ethyl cellulose, dimethyl Silicone oil; according to the content of silane coupling agent in the modified solvent is 6%, the content of sodium dodecylsulfonate in the modified solvent is 2%, the content of ethyl cellulose in the modified solvent is 8%, dimethyl The base silicone oil content in the modified solvent is 2% ultrasonically dispersed, stirred at 70°C for 5 hours to obtain the modified solvent; cooled to 19°C and filtered;

[0067] (3) Add glass microbeads to the modified solvent, stir at 70°C after ultrasonic dispersion to o...

Embodiment 3

[0080] S1: Preparation of transparent support layer

[0081] Water-based polyurethane resin is selected as the transparent support layer;

[0082] S2: Preparation of glass bead layer

[0083] (1) glass beads are washed, dried and screened;

[0084] (2) Prepare ethanol solvent with distilled water and ethanol according to the ratio of 1:9, add tartaric acid to adjust the pH of the solvent to 6, add silane coupling agent, sodium dodecylsulfonate, ethyl cellulose, dimethyl Silicone oil; according to the content of silane coupling agent in the modified solvent is 18%, the content of sodium dodecylsulfonate in the modified solvent is 4%, the content of ethyl cellulose in the modified solvent is 3%, dimethyl The base silicone oil content in the modified solvent is 3%, ultrasonically dispersed, stirred at 80°C for 3 hours to obtain the modified solvent; cooled to 25°C and filtered;

[0085] (3) adding the glass microspheres of step S2(1) into the modified solvent of step S2(2), ul...

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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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