3D printing material and preparation method

A 3D printing and raw material technology, applied in the direction of additive processing, can solve problems such as stress and deformation, and achieve the effect of strong adhesion, good release ability and fast curing rate

Inactive Publication Date: 2018-11-16
BEIJING INST OF TECH ZHUHAI CAMPUS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

SLA technology has faster forming speed and higher precision, but due to shrinkage during resin curing, stress or deformation will inevitably occur

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A 3D printing material, characterized in that it comprises the following raw materials by mass percentage: 0.5% photosensitizer, 1.2% phthalophosphorus oxide, 1% diphenyl ketone, 3% reactive diluent, 0.8% color powder , surface modifier 0.1%, ceramic particle powder 1%, nanometer antibacterial agent 2.5%, and the balance is epoxy resin.

[0027] The hyperbranched photosensitive resin was synthesized by Michael addition reaction by using multiple aliphatic amines and acrylates containing multiple double bonds. Acetophenone is used as a photoinitiator, and reactive diluent, color powder, surface modifier, ceramic particle powder and nano antibacterial agent are added to synthesize a 3D printing material with superior performance.

Embodiment 2

[0029] A 3D printing material, characterized in that it comprises the following raw materials by mass percentage: 6.5% photosensitizer, 2.2% phthalophosphorus oxide, 2% benzophenone, 10% reactive diluent, 0.8% color powder, Surface modifier 1%, ceramic particle powder 1.5%, nano antibacterial agent 4%, and the balance is epoxy resin.

[0030] The hyperbranched photosensitive resin was synthesized by Michael addition reaction by using multiple aliphatic amines and acrylates containing multiple double bonds. Acetophenone is used as a photoinitiator, and reactive diluent, color powder, surface modifier, ceramic particle powder and nano antibacterial agent are added to synthesize a 3D printing material with superior performance.

Embodiment 3

[0032] A 3D printing material, characterized in that it comprises the following raw materials by mass percentage: 0.75% photosensitizer, 1.5% phthalophosphorus oxide, 1.3% benzophenone, 3% reactive diluent, 0.1% color powder, Surface modifier 0.1%, ceramic particle powder 1%, nano antibacterial agent 2.5%, and the balance is epoxy resin.

[0033] The hyperbranched photosensitive resin was synthesized by Michael addition reaction by using multiple aliphatic amines and acrylates containing multiple double bonds. Acetophenone is used as a photoinitiator, and reactive diluent, color powder, surface modifier, ceramic particle powder and nano antibacterial agent are added to synthesize a 3D printing material with superior performance.

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PUM

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Abstract

The invention discloses a 3D printing material and a preparation method. The 3D printing material is characterized by comprising the following raw materials in percentage by mass: 1% to 5% of photosensitizer, 1.8% of phthalidyl phosphorus oxide, 1.5% of benzil, 3.5% to 8% of reactive diluent, 0.1% to 0.5% of colored powder, 0.1% to 0.7% of surface modifier, 1% to 1.5% of ceramic granule powder, 2.5% to 4% of nano antibacterial agent and the balance of epoxy resin. The 3D printing material is synthesized through subjecting multielement aliphatic amine and acrylate containing multielement doublebonds to a Michael addition reaction to synthesize hyperbranched photosensitive resin, then, taking the new synthesized epoxy resin as a base material, taking the phthalidyl phosphorus oxide and thebenzil as photoinitiators, and then, adding the reactive diluent, the colored powder, the surface modifier, the ceramic granule powder and the nano antibacterial agent. The 3D printing material disclosed by the invention is high in curing rate, high in adhesive power, free of delaminating phenomenon during experiment and low in volume change before and after curing, the mechanical properties meetthe requirements of 3D printing, and the 3D printing material has a certain industrialized application value.

Description

technical field [0001] The invention relates to a printing material and a preparation method, in particular to a 3D printing material and a preparation method. Background technique [0002] 3D printing (English: 3D printing) is a kind of rapid prototyping technology. It is based on a digital model file, using powdered metal or plastic and other bondable materials to construct objects by stacking and accumulating layer by layer. technology (i.e. "Layer Shaping"). In the past, it was often used to make models in the fields of mold manufacturing and industrial design, and is now gradually being used in the direct manufacture of some products. In particular, some high-value applications already have parts printed using this technology, which means the popularity of "3D printing" technology. The most prominent advantage of 3D printing technology is that it can directly generate parts of any shape from computer graphics data without machining or any molds, thereby greatly shorte...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L87/00C08K13/02B33Y70/00C08G83/00
CPCB33Y70/00C08G83/005C08L63/00C08L87/00C08K13/02
Inventor 詹世景杜武青冯彤英吕京美
Owner BEIJING INST OF TECH ZHUHAI CAMPUS
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