Preparation method for nano heat insulation colored thin film based on plant pigment dyeing

A technology of plant pigments and nano-heat insulation, which is applied in the direction of chemical instruments and methods, natural dyes, azo dyes, etc., can solve the problems of less colored transparent heat-insulation films, complex preparation processes, and impact on traffic safety, and achieve improved insulation Thermal and mechanical properties, good combination, and the effect of improving anti-corrosion performance

Inactive Publication Date: 2017-02-15
DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, dazzling reflections will affect traffic safety, so it is prohibited to be used on the frame film of the car
[0005] In the prior art, the preparation of transparent heat-insulating films and transparent heat-insulating glass is relatively mature, but there are few methods for preparing colored transparent heat-insulatin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] A preparation method of a nano heat-insulating color film based on plant pigment dyeing, including the following steps:

[0031] (1) Rinse the collected sponge with clean water, then put it in a saturated solution of calcium chloride and soak for 20h, remove it, wash, dry, and crush to obtain green powder, mix the green powder with ethanol, 800W power Ultrasound for 3 hours and filter to obtain filtrate A and filter residue;

[0032] (2) The filter residue prepared in step (1) is irradiated with ultraviolet rays for 20 minutes, and then squeezed with a screw press, pH regulator is added during squeezing, and the extract is filtered to obtain filtrate B, wherein the pH regulator is 0.1 mol / L The mixture of sodium bicarbonate and 0.1mol / L sodium chloride, the volume ratio of the two is 1:2;

[0033] (3) Mix the filtrate A prepared in step (1) with the filtrate B prepared in step (2), extract with a petroleum ether-methanol mixture, grind and filter, repeat thi...

Example Embodiment

[0036] Example 2

[0037] A preparation method of a nano heat-insulating color film based on plant pigment dyeing, including the following steps:

[0038] (1) Rinse the collected sponge with clean water, then put it in a saturated solution of calcium chloride and soak for 30h, remove it, wash, dry, and crush to obtain green powder, mix the green powder with ethanol, 800W power Ultrasound for 6 hours and filter to obtain filtrate A and filter residue;

[0039] (2) The filter residue prepared in step (1) is irradiated with ultraviolet rays for 40 minutes, and then squeezed by a screw press, pH regulator is added during squeezing, and the extract is filtered to obtain filtrate B, where the pH regulator is 0.1 mol / L The mixture of sodium bicarbonate and 0.1mol / L sodium chloride, the volume ratio of the two is 1:3;

[0040] (3) Mix the filtrate A prepared in step (1) with the filtrate B prepared in step (2), extract with a petroleum ether-methanol mixture, grind and filter, repeat this 2-...

Example Embodiment

[0043] Example 3

[0044] A preparation method of a nano heat-insulating color film based on plant pigment dyeing, including the following steps:

[0045] (1) Rinse the collected Sponge with clean water, then soak it in a saturated solution of calcium chloride for 22 hours, remove it, wash, dry, and crush to obtain a green powder. Mix the green powder with ethanol, 800W power Ultrasound for 4 hours and filter to obtain filtrate A and filter residue;

[0046] (2) The filter residue prepared in step (1) is irradiated with ultraviolet rays for 25 minutes, and then squeezed with a screw press, pH regulator is added during squeezing, and the extract is filtered to obtain filtrate B, where the pH regulator is 0.1mol / L The mixture of sodium bicarbonate and 0.1mol / L sodium chloride, the volume ratio of the two is 1:2.3;

[0047] (3) Mix the filtrate A prepared in step (1) with the filtrate B prepared in step (2), extract with a petroleum ether-methanol mixture, grind and filter, repeat this ...

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PUM

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Abstract

The invention discloses a preparation method for a nano heat insulation colored thin film based on plant pigment dyeing, wherein the preparation method comprises the following steps: firstly, extracting a pigment from spirogyra, to obtain a plant pigment concentrated solution; in the pigment extraction process, combining ultrasound and ultraviolet irradiation, to improve the efficiency; then mixing the plant pigment concentrated solution with anhydrous ethanol, hollow silicon-aluminum based ceramic micro-beads, polyacrylonitrile-based carbon fibers, a pure silicon resin emulsion, an acrylic resin emulsion, nano titanium dioxide, a crosslinking agent and a curing agent evenly to obtain a mixed slurry, spraying the surface of a polyester thin film with the mixed slurry by a spraying method, then placing the sprayed polyester thin film in a vacuum chamber, and treating for a period of time under a certain condition, to obtain the nano heat insulation colored thin film. The prepared colored thin film has the advantages of good heat insulation and sound insulation, excellent heat resistance, excellent mechanical properties, good antibacterial and anticorrosion properties, simple preparation method and low cost.

Description

[0001] Technical field: [0002] The invention relates to the field of film preparation, in particular to a method for preparing a nano heat-insulating color film based on plant pigment dyeing. [0003] Background technique: [0004] At present, there are many monochromatic and heat-insulating films produced in the world. The transparent heat-insulating film produced by 3M in the United States has better light transmission and heat-insulating effects, but the visible light reflectance of this product is too high, and the full-band reflectance is greater than 60%. Because the dazzling reflection will interfere with the normal order, it is prohibited to use in some occasions. For example, dazzling reflections will affect traffic safety, so they are prohibited from being used on the frame film of automobiles. [0005] The preparation of transparent heat-insulating films and transparent heat-insulating glass is relatively mature in the prior art, but there are few methods for pre...

Claims

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Application Information

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IPC IPC(8): C08J7/04C08L67/00C09D133/00C09D183/04C09D7/12C09B61/00
CPCC08J5/18C08J7/0427C08J2367/00C08J2433/00C08J2483/04C08K2201/011C09B61/00C09D7/61C09D7/63C09D7/70C09D133/00C09D183/04C08L83/04C08K13/04C08K7/26C08K7/06C08K2003/2241C08L33/00
Inventor 王文庆
Owner DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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