Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of high-strength tear-resistant reflective film and preparation process thereof

A preparation process and technology of reflective film, applied in optics, optical components, instruments, etc., can solve the problems of not meeting safety requirements, reduced reflective ability of reflective film, high brittleness, etc., to maintain dynamic stability and mechanical strength, increase tear resistance The effect of cracking ability

Active Publication Date: 2022-04-15
CHANGZHOU RIYUE REFLECTIVE MATERIAL
View PDF19 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Reflective film is a kind of retroreflective material that can be directly applied as a thin film. It is widely used in all aspects of life, such as road signs, truck body recognition, and clothing with warning functions. To warn, it will reflect clear and bright light at night or in the case of insufficient light to enhance the recognition ability of the human eye and effectively avoid accidents; the current mainstream types of reflective film mainly include: lens embedded reflective film, Lens-sealed reflective film, micro-prism reflective film; lens-embedded reflective film has low brightness when reflecting light, which cannot meet safety requirements; dimensional prism reflective film uses the principle of refraction and reflection of micro-prism to achieve reflective effect, but its effect on distance and The angle has certain requirements; the lens-sealed reflective film adopts glass bead reflective technology, although it has high reflective intensity and angle performance, but its brittleness and low mechanical strength, when the lens-sealed reflective film is in harsh environments for a long time When working, affected by the change of ambient temperature, the gas repeatedly expands and contracts, and the surface of the reflective film is prone to bubbles or tears, which reduces the reflective ability of the reflective film and reduces the service life of the reflective film. Moreover, the current base material and sealing material of the reflective film The main components are acrylic resin, polyurethane resin and other materials, which are very easy to age, and yellowing will affect the reflective effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) Preparation of modified glass beads:

[0058] A. Preparation of modified microbeads A:

[0059] a. Add iminodiacetic acid into deionized water and stir to dissolve, raise the temperature to 68°C, add glycidyl methacrylate, stir and react at 250r / min for 3-5h to obtain solution A.

[0060] b. At room temperature, add glass microspheres into normal silane, stir evenly, add 2-bromoisobutyryl bromide and triethylamine in turn, increase the speed to 250r / min, continue to stir and react for 18h, and obtain microspheres a;

[0061] c. Add dimethylformamide to deionized water to dissolve, nitrogen protection, add microbeads a, solution A, copper bromide, cuprous bromide, bipyridine in turn, stir and react at 150r / min for 6h, filter Freeze-dry to obtain modified microbeads A.

[0062] B. Preparation of modified microbeads B:

[0063] a. Add a silane coupling agent to the ethanol solution, stir evenly, adjust the pH value to 3, add glass beads at 65°C, and stir for 1 hour...

Embodiment 2

[0080] (1) Preparation of modified glass beads:

[0081] A. Preparation of modified microbeads A:

[0082] a. Add iminodiacetic acid in deionized water and stir to dissolve, raise the temperature to 74°C, add glycidyl methacrylate, stir and react at 300r / min for 4h to obtain solution A.

[0083] b. At room temperature, add glass microspheres into normal silane, stir well, then add 2-bromoisobutyryl bromide and triethylamine in turn, increase the speed to 300r / min, continue stirring for 19h to obtain microspheres a;

[0084] c. Add dimethylformamide to deionized water to dissolve, nitrogen protection, add microbeads a, solution A, copper bromide, cuprous bromide, bipyridine in turn, stir and react at 200r / min for 7h, filter Freeze-dry to obtain modified microbeads A.

[0085] B. Preparation of modified microbeads B:

[0086] a. Add a silane coupling agent to the ethanol solution, stir evenly, adjust the pH value to 5, add glass beads at 75°C, and stir for 1.5 hours at a spe...

Embodiment 3

[0103] (1) Preparation of modified glass beads:

[0104] A. Preparation of modified microbeads A:

[0105] a. Add iminodiacetic acid into deionized water and stir to dissolve, raise the temperature to 82°C, add glycidyl methacrylate, stir and react at 350r / min for 5h to obtain solution A.

[0106] b. At room temperature, add glass microspheres to n-silane, stir evenly, then add 2-bromoisobutyryl bromide and triethylamine in turn, increase the speed to 350r / min, continue stirring for 20h to obtain microspheres a;

[0107] c. Add dimethylformamide to deionized water to dissolve, nitrogen protection, add microbeads a, solution A, copper bromide, cuprous bromide, bipyridine in turn, stir and react at 250r / min for 8h, filter Freeze-dry to obtain modified microbeads A.

[0108] B. Preparation of modified microbeads B:

[0109] a. Add a silane coupling agent to the ethanol solution, stir evenly, adjust the pH value to 6, add glass beads at 85°C, and stir for 2 hours at a speed of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high-strength tear-resistant reflective film and a preparation process thereof. First, modify the resin, mix the modified resin with defoamer, anti-UV agent, halogen-free flame retardant, curing agent, and fumed silica to obtain the base material, and coat the base material on the PET film to obtain the plant film , coating the modified microbeads on the plant film, part of the modified microbeads sinks into the substrate, and the other part of the modified microbeads is coated with a high-purity metal aluminum layer as a reflective layer; another substrate is coated on a PET film to form a Film, the PET film after film formation is covered on the PVC bead planting film to obtain a composite film, the composite film is pressed on a honeycomb-shaped texture heat sealing machine, the PET film is peeled off, and a honeycomb reflective film is obtained; the prepared reflective film is not only strong High, not easy to tear, high reflectivity, not easy to change color and aging, long service life and has a certain self-repair ability, which greatly prolongs the service life of the reflective film, and has very good performance.

Description

technical field [0001] The invention relates to the field of reflective films, in particular to a high-strength tear-resistant reflective film and a preparation process thereof. Background technique [0002] Reflective film is a kind of retroreflective material that can be directly applied as a thin film. It is widely used in all aspects of life, such as road signs, truck body recognition, and clothing with warning functions. To warn, it will reflect clear and bright light at night or in the case of insufficient light to enhance the recognition ability of the human eye and effectively avoid accidents; the current mainstream types of reflective film mainly include: lens embedded reflective film, Lens-sealed reflective film, micro-prism reflective film; lens-embedded reflective film has low brightness when reflecting light, which cannot meet safety requirements; dimensional prism reflective film uses the principle of refraction and reflection of micro-prism to achieve reflecti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/128
CPCG02B5/128
Inventor 陈标
Owner CHANGZHOU RIYUE REFLECTIVE MATERIAL