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Antibacterial 3D printing water-based photocuring material

A light-curing material, 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of poor mechanical properties, low impact resistance, poor toughness, etc., and achieve the effect of good mechanical properties

Inactive Publication Date: 2020-07-24
鹤山市创享科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These photosensitive resins generally have poor mechanical properties, brittle resin, poor toughness, low elongation at break, and low impact resistance. These shortcomings affect the manufacturing accuracy of the workpiece and limit the promotion of 3D printing technology.
[0003] In addition, during the storage, transportation and use of products printed by 3D printing technology, due to the influence of humidity, harmful particles and gases in the surrounding environment and air, bacteria are easy to grow on the surface, and pollutants are enriched, which will harm the human body. adverse health effects
At present, the antibacterial function of popular 3D printing products on the market is not very ideal and needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The antibacterial 3D printing water-based light-curing material mainly includes the following raw materials in parts by weight:

[0028] 50 parts of epoxy acrylic resin; 10 parts of water-soluble polyurethane acrylate; 10 parts of acrylate monomer; 1 part of initiator; 0.5 parts of nano-silver antibacterial agent;

[0029] Preparation of epoxy acrylic resin: Weigh a certain amount of E51 epoxy resin, pour it into a three-necked flask, heat it in an oil bath and stir to raise the temperature to 80-90°C, add acrylic acid, catalyst (commonly used triethylamine, N,N-dimethyl benzylamine, N,N-dimethylaniline, etc.) and a polymerization inhibitor (commonly used p-methoxyphenol, hydroquinone, etc.), control the reaction temperature at 100 ° C, and take samples to measure the acid value at the same time, until the reaction In the later stage, the temperature is raised to 120°C, so that the acid value is less than 5mgKOH / g to stop the reaction, and cooled to 80°C to discharge; ...

Embodiment 2

[0041] The antibacterial 3D printing water-based photocurable material,

[0042] It mainly includes the following raw materials in parts by weight:

[0043] 70 parts of epoxy acrylic resin; 20 parts of water-soluble polyurethane acrylate; 30 parts of acrylate monomer; 5 parts of initiator; 3 parts of nano-silver antibacterial agent; 2 parts of other additives.

[0044] The preparation process of described epoxy acrylic resin is:

[0045] 1. Take E51 epoxy resin, pour it into a three-necked flask, heat in an oil bath and stir to raise the temperature to 80-90°C;

[0046] 2. Add the mixture of acrylic acid, catalyst and polymerization inhibitor dropwise to the three-necked flask one after another, control the reaction temperature to 100°C, take samples to measure the acid value at the same time, make the acid value less than 5mgKOH / g to stop the reaction, cool to 80°C and discharge; The ratio of acrylic acid, catalyst and polymerization inhibitor is 1:1:1.

[0047] The cataly...

Embodiment 3

[0063] The antibacterial 3D printing water-based light-curing material mainly includes the following raw materials in parts by weight:

[0064] 60 parts of epoxy acrylic resin; 15 parts of water-soluble polyurethane acrylate; 20 parts of acrylate monomer; 2.5 parts of initiator; 1.25 parts of nano-silver antibacterial agent; 1.5 parts of other additives.

[0065] The preparation process of described epoxy acrylic resin is:

[0066] 1. Take E51 epoxy resin, pour it into a three-necked flask, heat in an oil bath and stir to raise the temperature to 80-90°C;

[0067] 2. Add the mixture of acrylic acid, catalyst and polymerization inhibitor dropwise to the three-necked flask one after another, control the reaction temperature to 110°C, take samples to measure the acid value at the same time, stop the reaction when the acid value is less than 5mgKOH / g, cool to 80°C and discharge; The ratio of acrylic acid, catalyst and polymerization inhibitor is 1:1.5:2.

[0068] The catalyst is...

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Abstract

The invention discloses an antibacterial 3D printing water-based photocuring material which mainly comprises the following raw materials in parts by weight: 50-70 parts of epoxy acrylic resin; 10 to 20 parts of water-soluble polyurethane acrylate; 10 to 30 parts of an acrylate monomer; 1-5 parts of an initiator; 0.5 to 3 parts of a nano-silver antibacterial agent; and 1-2 parts of other auxiliaryagents. The material has good mechanical properties, and also has antibacterial and bacteriostatic functions.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and specifically relates to a water-based photocurable material for 3D printing with antibacterial properties, which is mainly used in the fields of product prototype, mold manufacturing, art creation, jewelry production and the like. Instead of the traditional manual fine processing technology, it is not limited by the complexity of the parts and has the characteristics of complete digital control. Background technique [0002] At present, the photo-curable materials commonly used in 3D printing technology are mainly photosensitive resins containing unsaturated double bonds, such as unsaturated polyester, epoxy acrylate, polyurethane acrylate, polyester acrylate, polyether acrylate, etc. These photosensitive resins generally have poor mechanical properties, brittle resin, poor toughness, low elongation at break, and low impact resistance. These shortcomings affect the manufacturing a...

Claims

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Application Information

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IPC IPC(8): C08L63/10C08L75/14C08K9/12C08K3/08B33Y70/10
CPCB33Y70/00C08K2003/0806C08K2201/011C08L63/10C08L75/14C08K9/12C08K3/08
Inventor 陈志飞
Owner 鹤山市创享科技有限公司
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