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3D printing gypsum ink and preparation method thereof

A 3D printing and gypsum technology, applied in the field of 3D printing materials, can solve problems such as poor toughness, coarse particles, and poor fluidity

Inactive Publication Date: 2016-04-13
QINGHAI MINGYANG ENVIRONMENTAL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a gypsum material for 3D printing, which solves the problems of low strength, poor fluidity, coarse particles, poor toughness and high cost in gypsum materials used in 3D printing materials, and develops a gypsum material with industrial potential. , high speed, good precision, and low cost of use are economical 3D printing forming materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The gypsum raw material is crushed and homogenized in three stages to obtain gypsum blocks with a particle size of 10 cm, heated to 55°C in the reactor, drained of condensed water, and then injected with 1.5 MPa saturated steam, dried for 6 hours, and then drained of excess steam; Dry for 3 hours, pressure 0.5MPa, temperature 150°C, dry for 8 hours, and grind the dried material to get gypsum powder;

[0042] Add 10.0g of DETA and 155.0g of nano-silicon carbide into the grinder, and grind for 12 hours at a speed of 500r / min;

[0043] Add 50.0g of absolute ethanol to the mixer, the mixture of ground nano-silicon carbide and DETA, 180.0g of epoxy resin, and mix evenly. After 6 hours at 50°C, add 600.0g of gypsum powder and 5.0g of pigment according to the formula, mix Evenly, 1000g of 3D printing gypsum ink is obtained.

Embodiment 2

[0045] The gypsum raw material is crushed in three stages and homogenized to obtain gypsum blocks with a particle size of 20cm, which are heated to 60°C in the reactor, and the condensed water generated is removed, then 3.5MPa saturated steam is introduced, dried for 5 hours, and then the excess steam is drained; Dry for 2 hours, pressure 0.3MPa, temperature 160°C, dry for 7 hours, and grind the dried material to get gypsum powder;

[0046] Add 200.0g of DETA and 20.0g of nano-silicon carbide into the grinder, and grind for 4 hours at a speed of 2000r / min;

[0047] Add 5.0g of absolute ethanol, the mixture of ground nano-silicon carbide and DETA, and 40.0g of epoxy resin into the mixer, and mix well. After keeping warm at 55°C for 4.5h, add 735.0g of gypsum powder according to the formula, and mix well, that is Get 1000g of 3D printing gypsum ink.

Embodiment 3

[0049] The gypsum raw material is crushed in three stages and homogenized to obtain gypsum blocks with a particle size of 15cm, heated to 57°C in the reactor, draining the condensed water, and then injecting 2.5MPa saturated steam, drying for 5.5h, and then draining the excess steam ;Dry for 2.5 hours, pressure 0.4MPa, temperature 155°C, dry for 7.5 hours, and grind the dried material to get gypsum powder;

[0050] Add 5.0g of DETA and 20.0g of nano-silicon carbide into the grinder, and grind for 8 hours at a speed of 1000r / min;

[0051] Add 5.0g of absolute ethanol, the mixture of ground nano-silicon carbide and DETA, 40.0g of epoxy resin, and mix evenly in the mixer. After 5 hours of heat preservation at 56°C, add 930.0g of gypsum powder according to the formula, and mix evenly to obtain 3D printing gypsum ink 1000g.

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Abstract

The present invention belongs to the technical field of 3D printing materials, and relates to a 3D printing gypsum ink, and the 3D printing gypsum ink is prepared from the following components by weight: 60% to 93% of gypsum powder, 2% to 20% of filler, 4% to 18% of a modifying solvent and 0.5% to 5% of a coagulant. The present invention also discloses a preparation method of the 3D printing gypsum ink, and all the raw materials are mixed and stirred evenly to obtain the 3D printing gypsum ink. The problems of low strength, poor mobility, coarse particles, poor toughness and high cost in the prior art can be solved, and an economical 3D printing forming material with industrial potential, high speed, good precision and low use cost is developed.

Description

technical field [0001] The invention belongs to the technical field of 3D printing materials, and relates to a gypsum material for 3D printing, and also relates to a preparation method of the gypsum material. Background technique [0002] 3D printing (3DPrinting) technology, also known as additive manufacturing technology, is an emerging manufacturing technology that uses powdered metal or plastic and other bondable materials to build up physical objects layer by layer on the basis of a three-dimensional digital model. The close combination of information network technology, advanced material technology and digital manufacturing technology. 3D printing technology, a rapid manufacturing technology with broad development prospects, is not only hailed as a revolution in the manufacturing industry, but also considered "one of the important symbols of the third industrial revolution". [0003] After years of development, my country's 3D printing technology has basically synchron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B11/032
CPCC04B28/146C04B11/032C04B2103/12C04B2111/00181
Inventor 张炜赵富玉马刚
Owner QINGHAI MINGYANG ENVIRONMENTAL TECH GRP CO LTD
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