Flexible yellowing-resistant photosensitive resin used for 3D printing and preparation method thereof

A photosensitive resin, 3D printing technology, applied in the direction of additive processing, can solve the problems of high brittleness, low strength, poor yellowing resistance, etc., and achieve the effect of good adhesion, low viscosity and excellent water resistance

Inactive Publication Date: 2019-09-24
络合高新材料(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problems of high brittleness, low strength and poor yellowing resistance in the current 3D printing products, the present invention discloses a flexible and yellowing-resistant photosensitive resin for 3D printing and its preparation method. The technical solution of the present invention is as follows Implementation:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of the flexible anti-yellowing photosensitive resin for 3D printing comprises the following steps:

[0023] Step 1: Wrap the 250 ml three-necked bottle equipped with a stirrer and a condenser with tin platinum paper to shield it from light. Weigh 30g liquid hydrogenated bisphenol A epoxy resin, 30g 3,4-epoxycyclohexylmethyl-3', 4'-epoxycyclohexyl carboxylate, 15g ethylene glycol dimethacrylate, 15g Tripropylene glycol di(meth)acrylate, in a three-necked flask, stirred for 30 minutes;

[0024] Step 2: Weigh 5g of 1-hydroxy-cyclohexyl phenone and 5g of diaryliodonium hexafluorophosphate into a three-necked flask, and continue stirring for 30 minutes to obtain a flexible anti-yellowing photosensitive resin for 3D printing.

[0025] Detect the performance of the flexible and anti-yellowing photosensitive resin for 3D printing in this example: apply the flexible and anti-yellowing photosensitive resin for 3D printing in this embodiment on a glass plat...

Embodiment 2

[0027] The preparation method of the flexible anti-yellowing photosensitive resin for 3D printing comprises the following steps:

[0028] Step 1: Wrap the 250 ml three-necked bottle equipped with a stirrer and a condenser with tin platinum paper to shield it from light. Weigh 25g liquid hydrogenated bisphenol A epoxy resin, 25g 3,4-epoxycyclohexylmethyl-3',4'-epoxycyclohexyl carboxylate, 20g ethylene glycol dimethacrylate, 20g Tripropylene glycol di(meth)acrylate was placed in a three-necked flask, stirred for 30 minutes;

[0029] Step 2: Weigh 5g of 1-hydroxy-cyclohexyl phenone and 5g of diaryliodonium hexafluorophosphate into a three-necked flask, and continue stirring for 30 minutes to obtain a flexible anti-yellowing photosensitive resin for 3D printing.

Embodiment 3

[0032] The preparation method of the flexible anti-yellowing photosensitive resin for 3D printing comprises the following steps:

[0033] Step 1: Wrap the 250 ml three-necked bottle equipped with a stirrer and a condenser with tin platinum paper to shield it from light. Weigh 15g liquid hydrogenated bisphenol A epoxy resin, 35g 3,4-epoxycyclohexylmethyl-3', 4'-epoxycyclohexyl carboxylate, 25g ethylene glycol dimethacrylate, 25g Tripropylene glycol di(meth)acrylate was placed in a three-necked flask and stirred for 30 minutes.

[0034] Step 2: Weigh 6g of 1-hydroxy-cyclohexyl phenone and 5g of diaryliodonium hexafluorophosphate into a three-neck flask, and continue stirring for 30 minutes to obtain a flexible anti-yellowing photosensitive resin for 3D printing.

[0035] Detect the performance of the flexible and anti-yellowing photosensitive resin for 3D printing in this example: apply the flexible and anti-yellowing photosensitive resin for 3D printing in this embodiment on a...

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Abstract

The invention provides flexible yellowing-resistant photosensitive resin used for 3D printing. The flexible yellowing-resistant photosensitive resin comprises the following raw materials in parts by weight: 10 to 50 parts of liquid-state hydrogenated bisphenol A epoxy resin, 10 to 50 parts of alicyclic epoxy resin, 10 to 40 parts of an acrylate monomer, 1 to 7 parts of a radical initiator and 1 to 7 parts of a cationic photoinitiator. By implementation of a technical scheme of the invention, hydrogenated bisphenol A epoxy resin is introduced into a photosensitive resin system, so the effect of toughening is realized, and the technical problems of large brittleness and poor mechanical properties of a conventional 3D-printed material are effectively solved; meanwhile, hydrogenated epoxy is used, so yellowing resistance of a 3D-printed material can be effectively improved.

Description

technical field [0001] The invention relates to the field of 3D printing photosensitive resins, in particular to a flexible yellowing-resistant photosensitive resin for 3D printing and a preparation method thereof. Background technique [0002] 3D printing is a kind of rapid prototyping technology. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. It is a manufacturing technology. Technology, known as the core technology of the third industrial revolution. [0003] 3D printing mainly includes stereolithography rapid prototyping (SLA), digital laser prototyping (DLP) and fused deposition modeling (FDM), among which the main raw materials of SLA and DLP technologies are photosensitive resins. At present, most of the research on photosensitive resins focuses on the acrylate system, and the printed products are generally brittle, low in strength, and poor in yellowing r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/10C08F222/14C08F222/20C08F2/48B33Y70/00
CPCB33Y70/00C08F2/48C08F283/10
Inventor 王玉勤王瑞亮
Owner 络合高新材料(上海)有限公司
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