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Filamentous clay material for 3D printing and preparation method thereof

A 3D printing and clay technology, which is applied to clay products, applications, household appliances, etc., can solve the problems that hinder the development and application of 3D printing technology, limit the application of clay and its products, and complicate preparation methods of ceramic powder, so as to achieve easy molding shape Controlled, neatly arranged, evenly sized effects

Active Publication Date: 2016-06-08
TAICANG ZHETAITIAN PROD DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using 3D printing technology to form ceramic products, the 3D printing materials used are all ceramic powders fired from clay, and then ceramic products are obtained by direct or indirect methods, but the preparation methods of ceramic powders are complex and costly , which seriously hinders the development and application of 3D printing technology in ceramic molding
Clay itself has excellent viscosity and plasticity, and can be directly formed into a ceramic green body, and then sintered to obtain ceramics. However, due to defects in technology and technology, the molded ceramic green body has shortcomings such as simple structure and poor dimensional accuracy, which severely limits the use of clay. For the application of clay and its products in daily life, if 3D printing technology is used for clay and then molded to obtain ceramics, the above-mentioned defects can be completely improved and solved. Therefore, the application of clay and its products in daily life Significant and market value
[0004] Unmodified clay materials are not suitable for 3D printing. High plasticity clay has poor mechanical properties, which is not conducive to support and modeling during the forming process. Clay with good mechanical properties has poor cohesiveness and plasticity, which is not conducive to 3D printing. Bonding and extrusion during the molding process, therefore, it is necessary to modify the clay to obtain a clay material suitable for 3D printing technology, which is a prerequisite for clay to be used in 3D printing technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Add 50 parts by weight of kaolin with a fineness of 1000 mesh, 30 parts by weight of water and ethanol in a 1:1 miscible ethanol solution, and 3 parts by weight of silicon carbide whiskers into a planetary ball mill for mixing and grinding for 0.5h, then Add 5 parts by weight of alkyl ammonium salt, emulsify with ultrasonic waves for 20 minutes, and spray dry with a spray dryer to obtain a clay mixture powder material;

[0025] 2. Put the clay mixture powder material obtained in step 1, 8 parts by weight of methyl silicone oil, and 20 parts by weight of polylactic acid into a high-speed mixer at a speed of 200r / min for 30 minutes to discharge, and extrude with a twin-screw Extrude and draw wires to make filaments with a diameter of 1.75mm and a diameter error within 5%. Collect the filaments to obtain clay 3D printing materials, and use cold air to cool them during the wire drawing process.

Embodiment 2

[0027] 1. Add 65 parts by weight of montmorillonite with a fineness of 1000, 40 parts by weight of water and ethanol in a 1:1 miscible ethanol solution, and 8 parts by weight of silicon nitride whiskers in a planetary ball mill for mixing and grinding for 1 hour, Then add 10 parts by weight of sodium alkyl phosphate, emulsify with ultrasonic waves for 30 minutes, and spray dry with a spray dryer to obtain a clay mixture powder material;

[0028] 2. Put the clay mixture powder material obtained in step 1, 12 parts by weight of sodium phthalate and 35 parts by weight of polyethylene into a high-speed mixer and mix it at a speed of 300r / min for 40 minutes to discharge the material, and extrude it with a twin-screw It is extruded out of the machine and drawn to make filaments with a diameter of 3mm and a diameter error within 5%. The filaments are collected to obtain clay 3D printing materials. During the drawing process, cold air is used for cooling.

Embodiment 3

[0030] 1. Add 50 parts by weight of kaolin with a fineness of 2000 mesh, 40 parts by weight of an ethanol solution miscible with water and ethanol at a ratio of 1:1, and 5 parts by weight of potassium titanate whiskers in a planetary ball mill for mixing and grinding for 0.5 h, Then add 5 parts by weight of fatty alcohol sodium sulfate, carry out emulsification treatment with ultrasonic waves for 30min, and use a spray dryer to carry out spray drying to obtain the clay mixture powder material;

[0031] 2. Put the clay mixture powder material obtained in step 1, 12 parts by weight of amino silicone oil, and 20 parts by weight of polypropylene into a high-speed mixer at a speed of 250r / min for 35 minutes to discharge, and use a twin-screw extruder Extrude and wire-draw to make filaments with a diameter of 1.75mm and a diameter error within 5%, collect the filaments to obtain clay 3D printing materials, and use cold air to cool during the wire-drawing process.

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Abstract

A filamentous clay material for 3D printing and a preparation method thereof. In order to obtain a suitable clay material for 3D printing, the method comprises the steps of: modifying the clay, conducting mixing melting on the clay and a resin carrier, using an emulsifier for emulsification treatment, drawing filaments, increasing the plasticity, fluidity and toughness of the clay, so as to obtain a filamentous clay material for 3D printing. The filamentous clay material has the advantages of good plasticity, low molding temperature, good mechanical properties and high precision, is applicable to 3D printing, promotes the popularization and application of 3D printing molding technology and has broad market prospects.

Description

technical field [0001] The invention relates to a 3D printing material and a preparation method thereof, in particular to a filamentous clay material for 3D printing and a preparation method thereof. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, is an emerging technology in the field of rapid prototyping. It is based on digital model files and uses bondable materials such as powdered metal or plastic to print layer by layer. Techniques for constructing objects. With the development and application of 3D printing technology, the development of materials determines whether 3D printing can be more widely used, and materials have become one of the key factors limiting the future direction of 3D printing technology. At present, 3D printing materials mainly include engineering plastics, photosensitive resins, rubber materials, metal materials, and ceramic materials. The field of printing has been applied. [0003] As one ...

Claims

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Application Information

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IPC IPC(8): C04B33/13C04B33/36C04B35/634
CPCC04B33/1305C04B33/36C04B35/62227C04B35/6263C04B35/6264C04B35/63404C04B2235/5276C04B2235/6026
Inventor 陈庆曾军堂叶任海
Owner TAICANG ZHETAITIAN PROD DESIGN
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