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Preparation method of composite hollow sphere

A technology of hollow spheres and microspheres, applied in the direction of no pigment coating, coating, paper coating, etc., can solve the problems of low heat retention rate and poor pressure bearing capacity of hollow spheres, and achieve controllability and improve pressure bearing performance, good reflection and heat insulation effect

Pending Publication Date: 2021-07-27
RICOH THERMAL MEDIA WUXI CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the prior art, the present invention provides a composite hollow ball, which solves the problems of low heat retention rate and poor pressure bearing capacity of the existing hollow ball, and uses phenyl silicone resin with a silicon-oxygen structure as the frame to ensure the hollow rate Under the same conditions, the pressure bearing capacity of the hollow ball is greatly improved, and the silicon-oxygen structure has a good reflection and heat insulation effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A composite hollow sphere, which uses a silicone resin inner frame and polypropylene as a coating material to form a composite hollow sphere; and the preparation method includes the following steps:

[0018] Step 1, add phenyltrichlorosilane to 1L of toluene and stir evenly, then add polypropylene to form a mixed solution by ultrasonic dispersion at constant temperature; the concentration of phenyltrichlorosilane in toluene is 100g / L, and the stirring speed is 1000r / min, the amount of polypropylene added is 10% of phenyltrichlorosilane, the temperature of constant temperature ultrasonic dispersion is 60°C, and the ultrasonic frequency is 50kHz;

[0019] Step 2, adding the mixed solution into the mold for constant temperature granulation to obtain microsphere particles, then injecting ethyl cellulose ethanol liquid into the microsphere particles, and drying at constant temperature to form shell-core microsphere particles; the temperature of the constant temperature granu...

Embodiment 2

[0024] A composite hollow sphere, which uses a silicone resin inner frame and polypropylene as a coating material to form a composite hollow sphere; and the preparation method includes the following steps:

[0025] Step 1, add phenyltrichlorosilane to 1L of toluene and stir evenly, then add polypropylene to form a mixed liquid by ultrasonic dispersion at constant temperature; the concentration of phenyltrichlorosilane in toluene is 200g / L, and the stirring speed is 2000r / min, the amount of polypropylene added is 20% of phenyltrichlorosilane, the temperature of constant temperature ultrasonic dispersion is 80°C, and the ultrasonic frequency is 80kHz;

[0026] Step 2, adding the mixed solution into the mold for constant temperature granulation to obtain microsphere particles, then injecting ethyl cellulose ethanol liquid into the microsphere particles, and drying at constant temperature to form shell-core microsphere particles; the temperature of the constant temperature granula...

Embodiment 3

[0031] A composite hollow sphere, which uses a silicone resin inner frame and polypropylene as a coating material to form a composite hollow sphere; and the preparation method includes the following steps:

[0032] Step 1, add phenyltrichlorosilane to 1L of toluene and stir evenly, then add polypropylene to form a mixed liquid by ultrasonic dispersion at constant temperature; the concentration of phenyltrichlorosilane in toluene is 150g / L, and the stirring speed is 1500r / min, the addition of the polypropylene is 15% of phenyltrichlorosilane, the temperature of constant temperature ultrasonic dispersion is 80°C, and the ultrasonic frequency is 70kHz;

[0033] Step 2, adding the mixed solution into the mold for constant temperature granulation to obtain microsphere particles, then injecting ethyl cellulose ethanol liquid into the microsphere particles, and drying at constant temperature to form shell-core microsphere particles; the temperature of the constant temperature granula...

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Abstract

The invention belongs to the technical field of thermo-sensitive paper, and particularly relates to a preparation method of a composite hollow sphere. The composite hollow sphere is formed by taking an organic silicon resin inner frame and polypropylene as a coating material. The problems that an existing hollow ball is low in heat retention rate and poor in pressure bearing capacity are solved. Phenyl silicone resin of a silicon-oxygen structure serves as the frame, the pressure bearing capacity of the hollow ball is greatly improved under the condition that the hollow rate is not changed, and meanwhile the silicon-oxygen structure has a good reflective heat insulation effect.

Description

technical field [0001] The invention belongs to the technical field of thermal paper, and in particular relates to a preparation method of composite hollow spheres. Background technique [0002] Thermal paper is widely used in food, logistics, lottery, medical and other industries in China. The printing principle of thermal paper is that the leuco dye is converted into a colored dye through the transfer of heat. In order to make full use of heat, thermal paper will use heat insulating material to ensure the effective use of heat, so as to ensure the fineness of printing. At present, ordinary hollow ball heat insulation material is used for the utilization of heat in the bottom layer. However, the heat retention rate of the hollow ball is not high at present, and the pressure resistance is poor, which leads to a decline in the quality of thermal paper. Contents of the invention [0003] Aiming at the problems in the prior art, the present invention provides a composite ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/12C08J7/04C08L83/04C08L23/12D21H19/14D21H19/32D21H19/22D21H21/14
CPCC08J3/12C08J3/126C08J2383/04C08J2423/12C08J7/0427D21H19/14D21H19/22D21H19/32D21H21/14
Inventor 谢奇
Owner RICOH THERMAL MEDIA WUXI CO
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