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Material for rapid three dimensional printing forming and preparation method thereof

A technology for three-dimensional printing and forming materials, applied in the field of materials for three-dimensional printing rapid prototyping and its preparation, can solve the problems that restrict the promotion and popularization of 3DP forming technology, the forming accuracy of small parts is not high enough, and the adhesive bonding is not strong enough, etc. problem, to achieve the effect of short bonding time, good compounding effect and optional color.

Active Publication Date: 2012-07-18
广州魁科机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The price of 3DP rapid prototyping materials is low, the source of molding materials is wide, easy to color molding, and it is safe and reliable for users to use; Obvious roughness; in addition, due to the insufficient bonding of the adhesive, there are deficiencies such as low strength of the molded parts
In addition, the molding materials based on 3DP technology currently sold in the market are basically monopolized by foreign companies, and the price is high, which seriously restricts the promotion and popularization of 3DP molding technology in my country.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In the first step, 1 kilogram of magnesium silicate and 5 kilograms of acetone are added to a grinder with a rotating speed of 5000 rpm, and ground for 1 hour;

[0034] In the second step, 1 gram of Span-60, 2 grams of octadecanoic acid, and 50 grams of polyacrylic acid were added to 1 kilogram of acetone and stirred and dispersed for 2 hours to obtain a modified solution;

[0035] The third step is to mix the powder material pretreatment material obtained in the first step with the modified liquid obtained in the second step, put it into a grinder, mix and grind at room temperature for 4 hours, and then carry out supercritical drying, and grind and pulverize the dried material. The modified powder material A is obtained, and the particle size of the product is 700nm.

Embodiment 2

[0037] In the first step, 0.4 kg of sodium sulfate, 0.6 kg of calcium phosphate, 1 kg of ethanol, and 9 kg of glycerin were added to a grinder at a speed of 6000 rpm, and grinded for 2 hours;

[0038] In the second step, 10 grams of polyoxyethylene ether, 1 gram of sodium sulfonate, and 100 grams of polymethyl acrylate were added to 5 kilograms of ethanol and stirred and dispersed for 3 hours to obtain a modified solution;

[0039] The third step is to mix the powder material pretreatment material obtained in the first step with the modified liquid obtained in the second step, put it into a grinder, mix and grind at room temperature for 10 hours, and then carry out supercritical drying, and grind and pulverize the dried material. The modified powder material A is obtained, and the particle size of the product is 900nm.

Embodiment 3

[0041] In the first step, 0.7 kg of calcium sulfate, 0.5 kg of calcium silicate, 0.1 kg of calcium phosphate and 2 kg of isobutanol are added to a grinder with a rotation speed of 5500 rpm, and grind for 1.5 hours;

[0042]In the second step, 20 grams of sodium dodecylbenzenesulfonate, 15 grams of sodium sulfonate, and 100 grams of polyethylene glycol were added to 2.8 kilograms of ethanol and 0.2 kilograms of dibutyl phthalate and stirred and dispersed for 2.5 hours to obtain the modified Sexual fluid;

[0043] The third step is to mix the powder material pretreatment material obtained in the first step with the modified liquid obtained in the second step, put it into a grinder, mix and grind at room temperature for 8 hours, and then carry out supercritical drying, and grind and pulverize the dried material. The modified powder material A is obtained, and the particle size of the product is 1000nm.

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Abstract

The invention discloses a material for rapid three dimensional printing forming and a preparation method thereof. The material comprises a modifying powder material A and bonding agent B, wherein preparation method of the modifying powder material A comprises the following steps: adding powder material and a first solvent into a ball mill or grinding mill, and milling to obtain a pretreated powder material; adding surfactant, lubricant and organic resin into a second solvent in sequence, and stirring and dispersing for 2-3 hours to obtain modifying solution; mixing the pretreated powder material and the modifying solution, adding into the grinding mill, mixing and milling at normal temperature, drying, grinding, and pulverizing to obtain the modifying powder material A. When in use, one weight part of the modifying powder material A and 0.01-0.07 weight parts of the bonding agent B are blended. The material provided by the invention is used as the raw material for a rapid three dimensional printing forming machine, and can be used for effective rapid forming on different types of three dimensional printing machines.

Description

technical field [0001] The invention relates to a material for three-dimensional printing rapid prototyping and a preparation method thereof, belonging to the field of rapid constitutive forming materials, more specifically, a modified powder material A and a bonding agent for three-dimensional printing rapid prototyping Agent B and its preparation process. Background technique [0002] Rapid prototyping technology is a new digital prototyping technology based on discrete / accumulation prototyping as the basic principle. [0003] Three Dimensional Printing (3DP for short) technology based on jet technology uses the nozzle as the molding source, and its working principle is very similar to that of the print head. The vertical movement in the direction; moreover, the material ejected from the nozzle is not ink, but molten thermoplastic material or adhesive, so it can form a three-dimensional entity. Under the control of the manipulator, the multi-channel nozzle selectively sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/06C08L69/00C08L55/02C08L91/06C08L33/02C08L33/08C08L33/10C08L71/08C08L3/02C08L39/06C08L1/26B22F1/00B22F3/22
Inventor 杨卓如王位皮丕辉张勇文秀芳郑大锋蔡智奇程江吴镝
Owner 广州魁科机电科技有限公司
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