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3D (Three Dimensional) printing photosensitive material containing nanocellulose and preparation method of photosensitive material

A nanocellulose, 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of poor dispersion, brittle models, low strength, etc., to reduce resource consumption, optimize dispersion, improve tensile strength and The effect of the modulus of elasticity

Inactive Publication Date: 2018-07-27
中山市精微新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its special structure, it cannot be well dispersed in weak polar solvents or monomers, so it needs to be chemically modified to improve its dispersion in weak polar monomers
[0004] Most of the current 3D printing photosensitive resins come from the petroleum industry and are non-renewable. At the same time, the printed models are brittle and have low strength.

Method used

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  • 3D (Three Dimensional) printing photosensitive material containing nanocellulose and preparation method of photosensitive material

Examples

Experimental program
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Effect test

Embodiment 1

[0029] 30g polyurethane acrylate (brand Sartomer cn9001), 20g tripropylene glycol diacrylate, 15g hexanediol diacrylate, 15g 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexylmethyl Ester, 11g glycerol triglycidyl ether, 5g chemically modified nanocellulose, 3g 1-hydroxycyclohexyl phenyl ketone, 1g diphenyl-(4-phenylthio)phenylsulfonium hexafluoroantimonate, Add 0.1g of leveling agent and 0.05g of MEHQ into a 300ml stainless steel dispersion tank, raise the temperature to 40-50°C, and stir evenly at a speed of 600rpm for 2 hours, and then carry out light-curing 3D printing. The specific properties of the resin are shown in Table I.

Embodiment 2

[0031] 23g epoxy acrylate (brand Sartomer 2204), 25g tripropylene glycol diacrylate, 17g ethoxylated trimethylol propane triacrylate, 15g 3,4-epoxycyclohexylmethyl 3,4- Epoxycyclohexyl carboxylate, 10g glycerol triglycidyl ether, 6g chemically modified nanocellulose, 3g 1-hydroxycyclohexyl phenyl ketone, 1g diphenyl-(4-phenylthio)phenylsulfonium hexa Add fluoroantimonate, 0.1g leveling agent, and 0.05g MEHQ into a 300ml stainless steel dispersion tank, raise the temperature to 40-50°C, and stir evenly at a speed of 600rpm for 2 hours, and then perform light-curing 3D printing. The specific properties of the resin are shown in Table I.

Embodiment 3

[0033] 30g polyester acrylate (brand Sartomer 790), 25g hexanediol diacrylate, 15g ethoxylated trimethylolpropane triacrylate, 15g 3,4-epoxycyclohexylmethyl 3,4-cyclo Oxycyclohexyl carboxylate, 5g glycerol triglycidyl ether, 6g chemically modified nanocellulose, 3g 1-hydroxycyclohexyl phenyl ketone, 1g diphenyl-(4-phenylthio)phenylsulfonium hexafluoro Add antimonate, 0.1g leveling agent, and 0.05g MEHQ into a 300ml stainless steel dispersion tank, raise the temperature to 40-50°C, stir evenly at 600rpm for 2 hours, and then carry out light-curing 3D printing. The specific properties of the resin are shown in Table I.

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PUM

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Abstract

The invention discloses a preparation method of a 3D (Three Dimensional) printing photosensitive material containing nanocellulose. The 3D printing photosensitive material is prepared from the following components in percentage by weight: 20 to 50 percent of acrylate oligomer, 10 to 30 percent of a (methyl)acrylate monomer, 20 to 50 percent of epoxy resin, 1 to 15 percent of chemically modified nanocellulose, 0.1 to 5 percent of a free radical photoinitiator, 0.1 to 5 percent of a cationic initiator and 0.1 to 3 percent of auxiliary agent. A composition for 3D printing photosensitive resin isstirred and dispersed at 50 DEG C or below for 2h to obtain uniform finished-product 3D printing resin.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to the preparation and application of photocurable 3D printing photosensitive resins. Background technique [0002] 3D printing is a technology for manufacturing three-dimensional objects by adding materials layer by layer. This molding technology is also called additive manufacturing technology. It is based on digital model files and adds powdered metal or plastic to each layer to finally build a complete three-dimensional objects. According to different curing molding methods, 3D printing is divided into FDM (fused deposition manufacturing process), SLS (selective laser sintering process), light curing rapid prototyping process, spray curing molding and other methods. Among them, the light-curing rapid prototyping process has many advantages such as low energy consumption, low cost, and high curing precision. It controls the scanning of ultraviolet light by computer, solidifies ...

Claims

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Application Information

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IPC IPC(8): C08L75/14C08L35/02C08L67/06C08L63/10C08L63/00C08L1/02C08L71/02B33Y70/00
CPCC08L75/14B33Y70/00C08L35/02C08L63/10C08L67/06C08L2205/035C08L63/00C08L1/02C08L71/02
Inventor 刘涛苏艳
Owner 中山市精微新材料有限公司
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