Gypsum base material system for 3-D spraying binding and preparing method therefor

A three-dimensional spraying and bonding technology, which is applied in the field of rapid prototyping, can solve problems such as unrealized model design, and achieve the effects of small dimensional deformation, improved strength and toughness, and good flow properties

Inactive Publication Date: 2006-10-25
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional part design is two-dimensional three-view, although the current design software such as UG, Pro / ENGINEER, etc. can design the three-dimensional view, but it has not realized the real model design, but only the conceptual design
3DP forming technology will make solid model design possible

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Take 80g of high-strength gypsum powder, cool it down to -60°C in a freezer, crush, process and sieve to obtain gypsum powder with an average particle size in the range of 40-60 μm. Add 10g of polyvinyl alcohol, 5g of anhydrous calcium sulfate, 2g of white carbon black, and 3g of lithium silicon powder in sequence to the treated gypsum powder, and mix them evenly in a high-speed mixer. The above-mentioned modified powder is sieved in a vibrating sieve to obtain a composite gypsum powder base material with an average particle diameter in the range of 40-60 μm.

[0059] Add 0.5g of water-based polyurethane adhesive, 0.2g of phenolic resin, 0.3g of alkyl polyoxyethylene ester wetting agent to 98g of deionized water in sequence, and then add 1g of ethanol, and stir evenly to obtain a matching adhesive solution.

Embodiment 2

[0061] Take 85g of high-strength gypsum powder, cool it to -90°C in a freezer, crush, process and sieve to obtain gypsum powder with an average particle size in the range of 40-60 μm. Add 8g of acrylic resin emulsion, 3g of anhydrous calcium sulfate, 2g of white carbon black, and 2g of glass fiber in sequence to the treated gypsum powder, and mix them evenly in a high-speed mixer. The above-mentioned modified powder is sieved in a vibrating sieve to obtain a composite gypsum powder base material with an average particle diameter in the range of 40-60 μm.

[0062] In 96g of deionized water, add 1g of water-based polyurethane adhesive, 0.5g of phenolic resin, 0.5g of alkyl polyoxyethylene ester wetting agent, and then add 2g of polyethylene glycol, and stir evenly to obtain the matching adhesive solution.

Embodiment 3

[0064] Take 90g of high-strength gypsum powder, cool it to -130°C in a freezer, crush, process and sieve to obtain gypsum powder with an average particle size in the range of 40-60 μm. Add 5g of polyvinyl alcohol, 2g of anhydrous calcium sulfate, 1g of white carbon black, and 2g of glass fiber in sequence to the treated gypsum powder, and mix evenly in a high-speed mixer. The above-mentioned modified powder is sieved in a vibrating sieve to obtain a composite gypsum powder base material with an average particle diameter in the range of 40-60 μm.

[0065] Add 1 g of water-based polyurethane adhesive, 1 g of phenolic resin, and 1 g of sorbitan monolaurate wetting agent in 95 g of deionized water, and then add 2 g of propylene glycol, and stir evenly to obtain a matching adhesive solution.

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Abstract

The invention relates to a plaster base material system for 3D spray bonding fast forming technique, comprising composite base material and auxiliary bonder, where the composite base material is mixed uniformly of plaster powder, bonder, accelerator anhydrous calcium sulphate, dispersant, white carbon black, and intensifier; and the bonder is mixed of water base polyurethane glue, phenol resin, nonionic surface active agent, and alcohol cosolvent, dissolving in deionized water. And the composite base material and auxiliary bonder can completely meet use requirements.

Description

Technical field [0001] The present invention relates to rapid prototyping technology, specifically, the present invention relates to a kind of material system that is used for three-dimensional spraying and bonding rapid prototyping technology, comprises base material and the adhesive agent that is matched with this base material, especially the base material based on gypsum and The matching adhesive material system. Background technique [0002] The three-dimensional printing (Three Dimensional Printing, 3DP) rapid prototyping technology first proposed by the Massachusetts Institute of Technology Sachs et al. (US patent 5204055) is currently the most viable technology in the rapid prototyping industry. It has unprecedented advantages in traditional manufacturing. High processing flexibility, no need for various tools of traditional powder processing, and not limited by any geometric shape. Since the spraying position, spraying times, and spraying speed can be controlled at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B11/00C04B22/14C04B24/02C04B24/24C04B26/02
Inventor 白培康王建宏刘斌程军
Owner ZHONGBEI UNIV
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