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A color-changing plastic material

A plastic material and color-changing technology, applied in the field of plastic materials, can solve the problems of low difficulty in realization, low durability, loss of discoloration, etc., and achieve the effect of increasing the service life, increasing the photoluminescence properties, and enriching the scope of application.

Active Publication Date: 2021-06-15
揭阳市精塑五金塑胶实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, although it is not difficult to realize color-changing plastic materials, there is a common defect of low durability, that is, the use time is too short, and even the material characteristics of color-changing will be lost after a few months.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A variable color plastic material, comprising the following preparation steps:

[0026] (1) Add 50kg of low-density polyethylene with a density of 0.92g / cm into the high-speed mixer, slowly add 8kg of hexaphenyldisiloxane and 5kg of dicumyl peroxide into the reactor, and raise the temperature to 100°C , followed by adding phenyl salicylate, metal soap, phosphate, carbon black. After stirring for 30 min, mixture A was obtained;

[0027] (2) First preheat the heating kettle to 200°C, put 4kg of bismuth oxide into the heating kettle and heat up to 300°C, take it out after calcination for 50min, and obtain a light yellow powder, put 6kg of titanium dioxide in a ball mill for ball milling for 20min, take it out, and The yellow powder was thoroughly mixed to obtain mixture B;

[0028] (3) Add 3 kg of salicylaldehyde arylamine Schiff base into the acetone solution, heat up to 40°C at a heating rate of 5°C / min and stir, after mixing evenly, cool down to minus 10°C, and remove...

Embodiment 2

[0031] A variable color plastic material, comprising the following preparation steps:

[0032] (1) Add 60kg of low-density polyethylene with a density of 0.93g / cm into the high-speed mixer, slowly add 7kg of hexaphenyldisiloxane and 9kg of dicumyl peroxide into the reactor, and raise the temperature to 110°C , followed by adding phenyl salicylate, organotin, silicate and, carbon black, after stirring for 40min, mixture A was obtained;

[0033] (2) First preheat the heating kettle to 200°C, put 2kg of bismuth oxide into the heating kettle and heat up to 400°C, take it out after calcination for 40min, and obtain a light yellow powder, put 3kg of titanium dioxide in a ball mill and ball mill for 30min, take it out, and The yellow powder was thoroughly mixed to obtain mixture B;

[0034] (3) Add 3.6kg of salicylaldehyde arylamine Schiff base into the acetone solution, heat up to 45°C at a heating rate of 3°C / min and stir, after mixing evenly, cool down to minus 5°C, and remove th...

Embodiment 3

[0037] A variable color plastic material, comprising the following preparation steps:

[0038] (1) Add 90kg of low-density polyethylene with a density of 0.925g / cm into the high-speed mixer, slowly add 10.5kg of hexaphenyldisiloxane and 12kg of dicumyl peroxide into the reactor, and raise the temperature to 104 ℃, add phenyl salicylate, organotin, silicate and carbon black in sequence, and stir for 37 minutes to obtain mixture A;

[0039] (2) Preheat the heating kettle to 200°C first, put 3kg of bismuth oxide into the heating kettle and heat up to 370°C, take it out after calcination for 44min, and obtain light yellow powder, put 4.5kg of titanium dioxide in a ball mill and ball mill for 27min, then take it out, Mix well with light yellow powder to obtain mixture B;

[0040] (3) Add 5.4kg of salicylaldehyde arylamine Schiff base into the acetone solution, heat up to 42°C at a heating rate of 4°C / min and stir, after mixing evenly, cool down to minus 8°C, and remove the solids ...

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PUM

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Abstract

The invention provides a color-changing plastic material, which relates to the field of plastic materials, and comprises the following preparation steps: adding low-density polyethylene into a high-speed mixer, slowly adding hexaphenyldisiloxane and dicumyl peroxide into a reaction kettle In the process, raise the temperature to 100-110°C, add phenyl salicylate, stabilizer, lubricant, and filler in sequence, and stir for 30-40 minutes to obtain mixture A, and add solid powder C and mixture B to mixture A , the mixture is extruded and granulated by a twin-screw extruder, and then cooled and air-dried to obtain the final product. The invention enables the color-changing plastic material to maintain the color-changing function for a long time on the basis of maintaining the high plasticity and good ductility of traditional plastics.

Description

technical field [0001] The invention relates to the field of plastic materials, in particular to a color-changing plastic material. Background technique [0002] Plastic is a monomer material, a high molecular compound polymerized by addition polymerization or polycondensation reaction, and has plasticity in high temperature environment and stability in normal temperature environment. Therefore, plastic has a wide range of applications in real life, almost penetrating Every aspect of daily necessities. [0003] Temperature-sensitive color-changing powder means that the molecular structure of the organic substance changes due to electron transfer at a specific temperature, thereby realizing color change. In the prior art, temperature-sensitive color-changing powder can be combined with polypropylene, soft polyvinyl Silica gel and other transparent or translucent plastics are mixed and molded to produce a color-changing plastic material, which is molded and solidified into va...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K3/22C08K5/14C08K5/521C08K3/04C08K5/17C08K13/02
CPCC08K3/04C08K3/22C08K5/14C08K5/17C08K5/521C08K13/02C08K2003/2241C08L2207/066C08L23/06
Inventor 苏映惜陈晓如徐立志钟晓奇林顺江
Owner 揭阳市精塑五金塑胶实业有限公司
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