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High-intensity-grade reflective film and preparation method thereof

A reflective film, high-strength technology, applied in the direction of optics, optical components, film/sheet adhesive, etc., can solve the problems of glass beads rolling, collision, friction, affecting the characteristics of reflective film, glass beads wear, etc. , to enhance the visual performance, reduce the impact of static electricity, and easy to operate

Active Publication Date: 2019-08-23
ZHEJIANG YGM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the bead planting process, the glass beads are prone to rollover, collision, and friction, which make the glass beads wear and break
Moreover, the glass beads after rubbing tend to generate static electricity, resulting in the phenomenon of beads, stacked beads, and floating beads during the bead planting process, which affects the characteristics of the reflective film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for preparing a high-strength grade reflective film, which is prepared by the following steps:

[0035] (1) Aminosilane coupling agent modification of glass beads:

[0036] on glass beads washing, drying, screening ; use deionized water and ethanol as a mixed solvent, add aminopropyltrimethoxysilane under stirring conditions, the addition amount makes the concentration of aminosilane coupling agent in the solution 0.1wt%; use hydrochloric acid to adjust pH=4.0, add the aforementioned Glass beads, react at 80°C for 30 minutes, filter, wash until neutral, and dry to obtain glass beads modified by aminosilane coupling agent;

[0037] (2) Oxidation of carbon nanotubes:

[0038] The multi-walled carbon nanotubes prepared by the arc method were placed in a mixed acid solution formed by mixing concentrated sulfuric acid and concentrated nitric acid at a mass ratio of 3:1, and then the above mixture was ultrasonically treated for 8 hours. After the ultrasonication wa...

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Abstract

The invention relates to a high-intensity-grade reflective film and a preparation method thereof, and particularly relates to a high-intensity-grade reflective film with carbon nano tube modified glass beads as reflective elements and a preparation method of the high-intensity-grade reflective film. The method comprises the following steps: firstly, modifying glass beads through an amino silane coupling agent, then carrying out self-assembly with carbon nano tubes through electrostatic adsorption to obtain carbon nano tube modified glass micro beads, and planting the glass micro beads for filmformation to obtain the high-intensity-grade light reflective film. The carbon nano tubes have excellent conductivity and strength performance, so that antistatic and anti-wear properties of the glass beads can be effectively improved. The oxidized carbon nano tubes have excellent visible fluorescence, and visual performance of the reflective film can be synergistically enhanced by the visible fluorescence of the oxidized carbon nano tubes and inverse reflection of the glass beads, so that safety of night driving is improved. The preparation method is simple and is easy to operate, and the obtained reflective film is high in visibility and good in quality.

Description

technical field [0001] The invention relates to a high-strength reflective film and a preparation method thereof, in particular to a high-strength reflective film using carbon nanotube-improved glass beads as reflective elements and a preparation method thereof. Background technique [0002] High-strength reflective film is widely used in road, aerospace, navigation, mining and other fields due to its strong retroreflective performance. At present, the most popular application in transportation is the high-strength reflective film with high refractive index glass beads as the reflective element. High-refractive index glass beads are based on the principle of optical refraction and reflection. The reflected light basically returns in the opposite direction of the incident light, so that drivers can see the signs clearly and improve the safety of driving at night. [0003] In the prior art, glass microspheres are planted on the original polymer film through a bead planting pr...

Claims

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Application Information

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IPC IPC(8): C09J7/29C08J7/04G02B5/128C08L67/02
CPCC08J7/04C08J2367/02C08J2475/04C09J2427/006C09J2433/006C09J2467/006C09J2469/006C09J7/29G02B5/128
Inventor 陈国顺
Owner ZHEJIANG YGM TECH CO LTD
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