Inorganic and organic compound modified fast-curing material

Abstract

The invention relates to an inorganic and organic compound modified fast-curing material. A preparing method of the material includes the following steps of 1 ball milling, wherein powder is subjected to ball milling for granulation, and a ball mill is used for carrying out ball milling on the raw material; 2 grading, wherein powder granules obtained in the step 1 are dried and graded; 3 blending, wherein 500-800 mesh powder granules, 800-1000 mesh powder granules and 1000 mesh powder granules obtained through grading in the step 2 are blended by the mass ratio of (2-3):(3-5):(2-5), an organic modifying agent is added, and the mixture is stirred for 2-3 h in a power mixer to be mixed uniformly and dried to obtain the fast-curing material. The fast-curing material has the advantages of being fine and smooth in granule, high in whiteness and flowability, short in curing time and high in curing strength, the raw materials are rich and easy to obtain, a process route is simple, material performance meets the requirements for fineness and flowability, and the fast-curing material is particularly suitable for model making process including 3D printing technologies.

Description

technical field [0001] The invention relates to an inorganic-organic composite modified fast-curing material, which belongs to the field of model manufacturing materials. Background technique [0002] With the development of the times, especially the rapid development of network information technology, it has brought earth-shaking changes to our lives, and the era of network information has come. In this new era, the biggest feature is the digitization and informatization of the world. It is to digitally process all aspects of life and then spread them through the Internet to make our world faster, more efficient, and more imaginative. This revolution first started in the media field, followed by the financial field and the communication field. Now, the field of industrial manufacturing is also under the impact of this trend, and it is slowly carrying out its own transformation. The most distinctive feature of this is the revival and development of additive manufacturing ...

AI Technical Summary

Problems solved by technology

[0005] This technology was invented by Paul Williams, a student of the Massachusetts Institute of Technology, and his mentor, Professor Eli Sachs, in the 1980s. Due to its early start, related companies in the United States have accumulated rich experience, but due to large Some developers mainly focus on equipment manufacturing and automation implementation, but not enough investment in the development of printing media, and especially lack of experts in the field of materials to engage in this research, so the properties of the powder provided are from whiteness, fineness, It's not very strong either.

[0006] Domestic related research has also gradually begun. Patent CN102093646 B proposes some methods for preparing this adhesive printing powder, but the process is complicated, the equipment requirements are high, and various solvents are involved in the intermediate process. On the one hand, the cost is high, on the other hand There is a risk of environmental pollution, and the patent does not specifically involve the control of some key parameters, and its product stability is a big problem

Although the patent CN103936392A is also related to powder additive manufacturing, the concept involved is from another point of view, the powder is sprayed or flowed out through the nozzle, and the patent only proposes a concept and does not realize the real product

In addition, the patent mentions that the particle size of the powder should be controlled at 0.4-0.9um. Due to the effect of intermolecular force, the particles in this range are easily agglomerated and seriously affect their fluidity.