Medium printing slurry and preparation method thereof

A medium printing and paste technology, which is applied in the field of preparation of ultra-fine-grained medium printing paste, can solve the problems of easy precipitation and uneven powder dispersion, and achieve the effects of not easy precipitation, convenient and simple viscosity adjustment process and easy control.

Inactive Publication Date: 2019-12-03
四川华瓷科技有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a preparation method of ultra-fine-grain medium printing slurry and the product obtained by the

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
  • Medium printing slurry and preparation method thereof
  • Medium printing slurry and preparation method thereof
  • Medium printing slurry and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1

[0031] Prepare a 10L nylon ball mill tank and add 5 kg of Φ3 zirconium balls and 5 kg of Φ10 zirconium balls;

[0032] Step 1: Add 4 kilograms of ultra-fine crystal medium powder Ba with a median diameter D50 of 0.30μm to the nylon ball mill tank 2 Ti 9 O 20 , 0.1 kg of dispersant polyethylene glycol octyl phenyl ether, 0.6 kg of toluene, 0.6 kg of ethanol, ball milling speed 40 rpm, ball milling for 4 hours;

[0033] Step 2: Add 0.15 kg of ethyl cellulose, 0.04 kg of DBP, 0.2 kg of turpentine, 0.7 kg of terpineol, ball milling speed of 40 rpm, ball milling for 16 hours;

[0034] Step 3: The discharging is filtered with a 325-mesh filter. The discharged slurry is impacted with 20KHz ultrasonic waves at 25°C for 30 minutes, and stirred for 1 hour under suction and negative pressure at a wind speed of 5 m / s to completely volatilize toluene and ethanol , Adjust the viscosity to 36000mPa·S printing requirements to obtain the ultra-fine crystal medium printing paste.

[0...

Example Embodiment

[0036] Example 2

[0037] Prepare a 10L ceramic ball mill tank, add 5 kg of Φ3 zirconium balls and 5 kg of Φ10 zirconium balls;

[0038] Step 1: Add 4 kilograms of ultra-fine crystal medium powder BaTi with a median diameter of D50 of 0.25 μm to the nylon ball mill tank 4 O 9 , 0.12 kg of dispersant polyethylene glycol octyl phenyl ether, 0.5 kg of toluene, 0.5 kg of ethanol, 0.2 kg of isopropanol, ball milling speed 40 rpm, ball milling for 5 hours;

[0039] Step 2: Add 0.2 kg of ethyl cellulose, 0.05 kg of DBP, 0.1 kg of turpentine, 0.65 kg of diethylene glycol ether, ball milling speed 40 rpm, ball milling for 17 hours;

[0040] Step 3: The discharging is filtered with a 325-mesh filter. The discharged slurry is subjected to 20KHz ultrasonic impact at 25°C for 20 minutes, and stirred under suction and negative pressure for 2 hours at a wind speed of 1 m / s to make toluene, ethanol, The propanol is completely volatilized, and the viscosity is adjusted to 32000mPa·S printing requireme...

Example Embodiment

[0042] Example 3

[0043] Prepare a planetary mill, 4 2L nylon ball mill tanks, 5 kg Φ1 zirconium beads, 5 kg Φ3 zirconium balls;

[0044] Step 1: Add 4 kilograms of ultra-fine crystal dielectric powder BaTiO with a median diameter D50 of 0.16 μm to the nylon ball mill tank 3 , 0.16 kg of dispersant polyethylene glycol octyl phenyl ether, 0.6 kg of toluene, 0.6 kg of propyl acetate, ball milling speed of 300 rpm, ball milling for 1 hour;

[0045] Step 2: Add 0.28 kg of ethyl cellulose, 0.1 kg of DOP, 0.2 kg of turpentine, 0.7 kg of terpineol, ball mill speed 260 rpm, ball mill for 2 hours;

[0046] Step 3: The discharging is filtered with a 400 mesh filter, and the discharged slurry is impacted by 20KHz ultrasonic waves at 25°C for 30 minutes, and stirred under suction and negative pressure for 2 hours, with a wind speed of 1 m / s, to make toluene and propyl acetate Completely volatilized, adjust the viscosity to 28000mPa·S printing requirements, and obtain the ultra-fine crystal mediu...

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Thicknessaaaaaaaaaa
Median particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of ultra-fine crystal medium printing slurry and a product obtained by the method. The method comprises the following steps: 1, adding ultra-fine crystal medium powder, a low-boiling-point solvent and a dispersant into a ball milling tank, and carrying out ball milling dispersion; 2, adding a high-boiling-point solvent, an adhesive, a plasticizer and adiluent, and carrying out ball milling; and 3, carrying out filtering by using a filter screen, carrying out discharging, carrying out ultrasonic treatment on discharged slurry, carrying out stirringunder a condition of air suction and negative pressure to completely volatilize the low-boiling-point solvent, and adjusting the viscosity to 22000-36000 mPa*S to obtain the ultra-fine crystal mediumprinting slurry. The problems of uneven dispersion and easy precipitation of fine crystal powder in a pulping mode in the prior art are solved.

Description

technical field [0001] The invention relates to the field of chip electronic components, in particular to a method for preparing ultrafine-grain medium printing paste and products obtained by the method. Background technique [0002] In recent years, with the development of semiconductor IC and power supply technology, the voltage of IC used in various portable electronic devices has been lowered, and the disadvantage of capacitance drop caused by DC bias has been weakened. Therefore, portable electronic devices including smartphones begin to use multilayer ceramic capacitors (MLCC) of 100 μF and above as smoothing capacitors. frequency noise. High-capacity MLCCs began to partially replace electrolytic capacitors. [0003] However, due to structural and technical reasons, the higher the capacitance of MLCC, the more internal dielectric and electrode stacks, the more obvious the stress and bending deformation caused by structural mismatch, which will seriously lead to inter...

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
IPC IPC(8): C04B41/87
CPCC04B41/5041C04B41/5042C04B41/87C04B41/4535C04B41/463C04B41/472C04B41/4896C04B41/4803
Inventor 石吉伟曾雨杨晓东倪福松梁丽
Owner 四川华瓷科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap