A 3D printing material based on modified chitosan

Abstract

The invention relates to a 3D printing material based on modified chitosan. The printing material is prepared from raw materials in parts by weight as follows: 80-100 parts of modified chitosan, 20-40parts of butadiene styrene rubber, 20-35 parts of kaolin, 10-15 parts of an organosilicon coupling agent, 10-15 parts of hydroxy propyl methyl cellulose, 1-4 parts of polycaprolactone, 1-4 parts of liquid paraffin, 1-5 parts of polyethylene glycol, 2-5 parts of nano porous activated carbon, 2-6 parts of sodium polyphosphate, 3-9 parts of nano silicon dioxide, 3-9 parts of talc powder, 2-6 parts of zeolite powder, 1-4 parts of a surfactant and 3-5 parts of an antioxidant. Through addition of the modified chitosan, the biodegradation rate of the material, the flexibility of the material and theintegration property with rubber and other organic high polymer material components are increased, and the 3D printing material has the advantages of high impact toughness resistance and high stretching strength under the synergistic action of the raw materials through compounding, is easy to form and adopts a simple forming process.

Description

technical field [0001] The invention relates to the technical field of 3D printing materials, in particular to an environment-friendly 3D printing material mainly composed of biodegradable materials. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, is a new manufacturing technology in the field of rapid prototyping that is gradually developing. It is based on digital model files and uses bondable materials such as powdered metal or plastic. The technology of constructing objects by printing layer by layer. This is an environmentally friendly and personalized rapid prototyping technology, which has the advantages of high degree of personalization, small molding volume, low cost, low pollution, and convenient use. Its basic principle is mainly based on polymer materials, using fused deposition modeling technology, and completing the structure and formation of objects by layer-by-layer printing and accumulation. With the d...

AI Technical Summary

Problems solved by technology

For a long time, due to the inert characteristics of chitin, which is insoluble in water, dilute acids, dilute alkalis and most organic solvents, it has not received due attention.