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

Humidity-sensitive chromic functional material and preparation method thereof

A moisture-sensitive, functional material technology, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, etc., can solve problems such as unfavorable use, and achieve the effect of convenient preparation and low preparation cost

Inactive Publication Date: 2015-03-18
SHANGHAI JUTONG IND
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above patent is a kind of paint, which needs to be loaded on a specific carrier to realize the function of changing color when wet, which is not conducive to use

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Humidity-sensitive chromic functional material and preparation method thereof
  • Humidity-sensitive chromic functional material and preparation method thereof
  • Humidity-sensitive chromic functional material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Recipe (weight):

[0024]

[0025] The polymer resin is melamine resin;

[0026] The coloring agent is selected from 3,3-bis(P-dimethylamino)-phenolphthalein;

[0027] The color developer is selected from bisphenol A;

[0028] Described phlegmatizer is selected from styrene maleic anhydride copolymer;

[0029] The preparation method includes the following steps:

[0030] The honeycomb calcium carbonate, color-forming agent, color-developing agent and desensitizing agent are mixed, ball-milled, and then mixed with the polymer resin, mixed in a blender at 200 ° C, and then extruded and pelletized. The master batch is obtained, and then it can be molded in a mold to obtain a product as required.

[0031] When the device is placed in a humid environment, the color becomes darker, and when the ambient humidity decreases, the color becomes lighter.

Embodiment 2

[0033] Recipe (weight):

[0034]

[0035] The polymer resin is epoxy resin;

[0036] The color-forming agent is 3-diethylamino-7-methylfluoran;

[0037] The color developer is dodecylphenol gallate;

[0038] Described phlegmatizer is polyvinyl alcohol;

[0039] The preparation method includes the following steps:

[0040] The honeycomb calcium carbonate, color-forming agent, color-developing agent and desensitizing agent are mixed, ball-milled, and then mixed with the polymer resin, mixed in a blender at 180 ° C, and then extruded and pelletized. The master batch is obtained, and then it can be molded in a mold to obtain a product as required.

[0041] When the device is placed in a humid environment, the color becomes darker, and when the ambient humidity decreases, the color becomes lighter.

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 humidity-sensitive chromic functional material and a preparation method thereof. The humidity-sensitive chromic functional material comprises the following components in parts by weight: 100 parts of polymer resin, 100-200 parts of honeycomb-shaped calcium carbonate, 20-50 parts of a chromogenic agent, 5-10 parts of a color-developing agent and 1-5 parts of a desensitizer. The humidity-sensitive chromic functional material has the beneficial effects of corrosion resistance, thermal insulation and adiabaticity and inexpensive production cost, can be repeatedly used, is convenient to prepare and has larger industrial implementation prospects; the humidity-sensitive chromic functional material can be prepared into a solid device as desired and placed in a to-be-detected environment, when the humidity of the environment changes, the color of the solid device also changes.

Description

technical field [0001] The present invention relates to a material whose color changes due to changes in ambient humidity. Background technique [0002] In order to monitor and adjust the humidity of the working environment and the storage environment of the material, the conventional method is to detect by a hygrometer. [0003] However, in many occasions, conventional hygrometers are incompetent, such as high temperature occasions and environments with corrosive gases, and it is difficult to detect by instruments. [0004] The existing moisture-sensitive color-changing material is a hidden cover and display technology, which has disadvantages such as many materials used, poor display effect, and limited application range. [0005] Chinese Patent Application No. 01112837.2 discloses a functional material that changes color upon exposure to moisture and a preparation method thereof. In the present invention, a color-forming agent, a color-developing agent, a desensitizer a...

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 Applications(China)
IPC IPC(8): C08L61/06C08L63/00C08L61/28C09K9/02C08K13/04C08K7/24C08K3/26
Inventor 刘晓荣刘胜超蔡金飞
Owner SHANGHAI JUTONG IND