CN109401283A - A kind of water-based system DLP 3D printing photosensitive resin - Google Patents
A kind of water-based system DLP 3D printing photosensitive resin Download PDFInfo
- Publication number
- CN109401283A CN109401283A CN201811301233.XA CN201811301233A CN109401283A CN 109401283 A CN109401283 A CN 109401283A CN 201811301233 A CN201811301233 A CN 201811301233A CN 109401283 A CN109401283 A CN 109401283A
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- photosensitive resin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
Abstract
The present invention relates to a kind of DLP printed photosensitive resins, and in particular to a kind of water-based system DLP type 3D printing photosensitive resin, raw material components and parts by weight meter include following components: 20-80 parts of waterborne polyurethane resin；20-80 parts of aqueous monomers；0.5-3 parts of photoinitiator；0.01-0.05 parts of defoaming agent；0.02-0.1 parts of wetting dispersing agent；0.02-1 parts of pigment.The present invention solves the pollution problem of existing photosensitive resin, prepares water-based system photosensitive resin using aqueous monomers and waterborne polyurethane resin as raw material, effectively improves the elongation at break of DLP type 3D printing tree photosensitive resin.
Description
Technical field
The present invention relates to a kind of DLP printed photosensitive resins, and in particular to a kind of photosensitive tree of water-based system DLP type 3D printing
Rouge.
Background technique
3D printing technique, also known as quick forming fabri-cation, increases material manufacturing technology, nearly 2 years, 3D printing saw major repeatedly
News report.However, the concept of 3D printing is not to have just emerged, core manufacture thought originates from beauty at the end of the 19th century earliest
State is developed and is widely known to 3D printing technique the late 1980s.Rapid prototyping & manufacturing technology why can
It is fashionable rapidly in a short time, or even be known as " the third time industrial revolution ", mainly with " faster ", " more smart ", " more saving ",
" being more suitable for industrialized production " defeats existing industrialized production completely.Current 3D printing technique is photosensitive with oiliness 3D printing
Based on resin, clean based on organic solvent, not only polluted environment and be possible to cause it is uncomfortable answer, the workpiece printed breaks
Split the production requirement that the performances such as elongation are not able to satisfy client.
It is photosensitive that the Chinese invention patent of Publication No. CN105175651A discloses a kind of 3D printing containing solid rubber
Resin material, by mass percentage by component: solid rubber 1-20%；Acrylic resin is 30-80%；Diluent is
10-40%；Initiator is 1-5%；Promotor is 1-5% composition.This method prints the elongation at break of workpiece in 10-
60%；It is photosensitive that the Chinese invention patent of Publication No. CN105175645A discloses a kind of 3D printing containing macromolecular elastomer
Resin material and preparation method.The resin material is by component: mixing photoinitiator is 1-5%；Methacrylic acid norbornene ester is
8-18%；N-vinyl pyrrolidone is 1-7%；Macromolecular elastomer is 30-50%；1,4- cyclohexane dimethanol divinyl
Ether is 10-25%；Two acrylic ester of diethoxy bisphenol-A is 10-30% composition.It is to draw that the present invention, which is with phenyl lithium containing double bonds,
Agent is sent out, by anionic polymerisation, to be formed with isoprene be A block, ethylene oxide is that B is embedding and elasticity with terminal ethylenic base
Macromolecule polymeric monomer.This method prints the elongation at break of workpiece in 51-82%.
Although the photosensitive resin of above two method preparation is promoted by the way that solid rubber or macromolecular elastomer is added
The extensibility of photosensitive resin, but the above method still uses oily material, there are environmental issues, while elongation at break is still
It is not very high, it is difficult to meet client's needs.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of water-based system DLP type 3D printing photosensitive resin, solves
The pollution problem of existing photosensitive resin prepares the photosensitive tree of water-based system using aqueous monomers and waterborne polyurethane resin as raw material
Rouge effectively improves the elongation at break of DLP type 3D printing tree photosensitive resin.
To realize the above technical purpose, the technical scheme is that
A kind of water-based system DLP type 3D printing photosensitive resin, the raw material components and parts by weight meter packet of the photosensitive resin
Include following components:
20-80 parts of waterborne polyurethane resin；
20-80 parts of aqueous monomers；
0.5-3 parts of photoinitiator；
0.01-0.05 parts of defoaming agent
0.02-0.1 parts of wetting dispersing agent；
0.02-1 parts of pigment.
The aqueous monomers are using one or more kinds of hydrophilic lipid composites.
The waterborne polyurethane resin uses polyurethane acrylates resin.
The photoinitiator is the one or more of free radical photo-initiation.
The defoaming agent uses BYK055 defoaming agent.
The wetting dispersing agent uses BYK D-193 wetting dispersing agent.
The pigment uses Clariant Black N-7 mill base.
The photosensitive resin the preparation method is as follows:
Step 1, raw material are weighed according to formula rate: waterborne polyurethane resin, aqueous monomers, photoinitiator, defoaming agent,
Wetting dispersing agent and pigment；
Step 2, successively by waterborne polyurethane resin, aqueous monomers, photoinitiator, defoaming agent, wetting dispersing agent and pigment
It is put into blender, stirs at low speed even mix and obtain even mixed liquid, wherein the revolving speed stirred at low speed is 400r/min, and mixing time is
15min；
Step 3, by after the even mixed also progress high-speed stirred 15min in blender, uniform mixed liquor is obtained, wherein high
The revolving speed of speed stirring is 1500r/min；
Step 4, uniform mixed liquor is filtered, obtains 3D printing photosensitive resin.
There are ammonia ester bonds in polyurethane acrylate resin, can form a variety of hydrogen bonds in strand alkali, it is ensured that polyurethane
Material has good mechanical endurance and flexibility, promotes elongation at break, solves existing photosensitive resin elongation at break
Bad problem, while the optical property and weatherability of polyurethane acrylic resin brilliance itself, however polyurethane acroleic acid tree
That there are curing rates is slow for rouge, by the addition of aqueous monomers, forms good cross-linked structure, effectively promotes curing rate.
Photoinitiator does not contact illumination in resin process, can guarantee the stability of itself, not formed with other materials
Cross-linking reaction, while free radical is quickly formed under illumination condition, promote having between aqueous monomers and waterborne polyurethane resin
Effect solidification.
From the above, it can be seen that the present invention has following advantages:
1. the present invention solves the pollution problem of existing photosensitive resin, using aqueous monomers and waterborne polyurethane resin as former material
Material prepares water-based system photosensitive resin, effectively improves the elongation at break of DLP type 3D printing tree photosensitive resin.
2. the present invention uses UV special-used colour starch, good dispersion can not only be formed in resin system, and can protect
It demonstrate,proves it and keeps coloration in 3D printing.
3. the present invention prepares photosensitive resin using solvent-free system, reaction material can be completely converted into raw material, energy
Enough reduce the environmental pollution of preparation process.
4. toughness of products is higher after 3D printing photosensitive resin printing prepared by the present invention, solves DLP type currently on the market
The bad problem of 3D printing resin fracture elongation.
5. the printed material precision of resin prepared by the present invention is higher, toughness is more preferable, while can adopt wash with distilled water,
It avoids using seriously polluted organic solvent.
Specific embodiment
The present invention will be described in detail in conjunction with the embodiments, but does not do any restriction to claim of the invention.
Embodiment 1
A kind of preparation method of water-based system DLP type 3D printing photosensitive resin, preparation step are as follows:
Step 1, according to parts by weight content match:
The monomer weighed in proportion in advance, resin, photoinitiator, defoaming agent, profit are dispersing agent and pigment by step 2,
It is added sequentially in blender, stirs at low speed premixing and obtain premixed liquid, the revolving speed stirred at low speed is 400r/min, mixing time
For 15min.
Step 3, high-speed stirred: it after the premixed liquid in blender is carried out high-speed stirred 15min, is uniformly mixed
Liquid, the revolving speed of high-speed stirred are 1500r/min.
Step 4, filtering: after resulting mixed liquor is filtered, 3D printing photosensitive resin is obtained, strainer mesh number is 100
Mesh.
Model printing carried out to photosensitive resin made from above-mentioned steps with DLP equipment, model surface is smooth and fineness compared with
It is high.
Embodiment 2
A kind of preparation method of water-based system DLP type 3D printing photosensitive resin, preparation step are as follows:
Step 1, according to parts by weight content match:
The monomer weighed in proportion in advance, resin, photoinitiator, defoaming agent, profit are dispersing agent and pigment by step 2,
It is added sequentially in blender, stirs at low speed premixing and obtain premixed liquid, the revolving speed stirred at low speed is 500r/min, mixing time
For 20min.
Step 3, high-speed stirred: it after the premixed liquid in blender is carried out high-speed stirred 15min, is uniformly mixed
Liquid, the revolving speed of high-speed stirred are 1800r/min.
Step 4, filtering: after resulting mixed liquor is filtered, 3D printing photosensitive resin is obtained, strainer mesh number is 100
Mesh.
Model printing carried out to photosensitive resin made from above-mentioned steps with DLP equipment, model surface is smooth and fineness compared with
It is high.
Embodiment 3
A kind of preparation method of water-based system DLP type 3D printing photosensitive resin, preparation step are as follows:
Step 1, according to parts by weight content match:
The monomer weighed in proportion in advance, resin, photoinitiator, defoaming agent, profit are dispersing agent and pigment by step 2,
It is added sequentially in blender, stirs at low speed premixing and obtain premixed liquid, the revolving speed stirred at low speed is 600r/min, mixing time
For 25min.
Step 3, high-speed stirred: it after the premixed liquid in blender is carried out high-speed stirred 20min, is uniformly mixed
Liquid, the revolving speed of high-speed stirred are 2200r/min.
Step 4, filtering: after resulting mixed liquor is filtered, 3D printing photosensitive resin is obtained, strainer mesh number is 100
Mesh.
Model printing carried out to photosensitive resin made from above-mentioned steps with DLP equipment, model surface is smooth and fineness compared with
It is high.
Performance detection
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Market material | |
| Tensile strength | 46MPa | 42MPa | 37MPa | 59MPa |
| Stretch modulus | 485MPa | 448MPa | 396MPa | 500MPa |
| Hardness | 69D | 63D | 58D | 70D |
| Elongation at break | 103% | 123% | 164% | 20% |
| Bending strength | 53MPa | 48MPa | 41MPa | 70MPa |
| Bending modulus | 545MPa | 523MPa | 495MPa | 700MPa |
Through performance detection as can be seen that photosensitive resin provided by the invention is improved significantly in elongation at break,
And other performances meet the requirement of the 3D printing of DLP equipment.
In conclusion the invention has the following advantages that
1. the present invention solves the pollution problem of existing photosensitive resin, using aqueous monomers and waterborne polyurethane resin as former material
Material prepares water-based system photosensitive resin, effectively improves the elongation at break of DLP type 3D printing tree photosensitive resin.
2. the present invention uses UV special-used colour starch, good dispersion can not only be formed in resin system, and can protect
It demonstrate,proves it and keeps coloration in 3D printing.
3. the present invention prepares photosensitive resin using solvent-free system, reaction material can be completely converted into raw material, energy
Enough reduce the environmental pollution of preparation process.
4. toughness of products is higher after 3D printing photosensitive resin printing prepared by the present invention, solves DLP type currently on the market
The bad problem of 3D printing resin fracture elongation.
5. the printed material precision of resin prepared by the present invention is higher, toughness is more preferable, while can adopt wash with distilled water,
It avoids using seriously polluted organic solvent.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments.Those skilled in the art should understand that still can be carried out to the present invention
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of water-based system DLP type 3D printing photosensitive resin, it is characterised in that: the raw material components and weight of the photosensitive resin
Number meter includes following components:
20-80 parts of waterborne polyurethane resin；
20-80 parts of aqueous monomers；
0.5-3 parts of photoinitiator；
0.01-0.05 parts of defoaming agent
0.02-0.1 parts of wetting dispersing agent；
0.02-1 parts of pigment.
2. a kind of water-based system DLP type 3D printing photosensitive resin according to claim 1, it is characterised in that: described aqueous
Monomer is using one or more kinds of hydrophily lipid composites.
3. a kind of water-based system DLP type 3D printing photosensitive resin according to claim 1, it is characterised in that: described aqueous
Polyurethane resin uses polyurethane acrylates resin.
4. a kind of water-based system DLP type 3D printing photosensitive resin according to claim 1, it is characterised in that: the light draws
Send out the one or more that agent is free radical photo-initiation.
5. a kind of water-based system DLP type 3D printing light-sensitive material according to claim 1, it is characterised in that: the defoaming
Agent uses BYK055 defoaming agent.
6. a kind of water-based system DLP type 3D printing photosensitive resin according to claim 1, it is characterised in that: the wetting
Dispersing agent uses BYK D-193 wetting dispersing agent.
7. a kind of water-based system DLP type 3D printing photosensitive resin according to claim 1, it is characterised in that: the pigment
Using Clariant Black N-7 mill base.
8. a kind of water-based system DLP type 3D printing photosensitive resin according to claim 1, it is characterised in that: described photosensitive
Resin the preparation method is as follows:
Step 1, raw material are weighed according to formula rate: waterborne polyurethane resin, aqueous monomers, photoinitiator, defoaming agent, wetting
Dispersing agent and pigment；
Step 2, waterborne polyurethane resin, aqueous monomers, photoinitiator, defoaming agent, wetting dispersing agent and pigment are sequentially placed into
In blender, stirs at low speed even mix and obtain even mixed liquid, wherein the revolving speed stirred at low speed is 400r/min, and mixing time is
15min；
Step 3, by after the even mixed also progress high-speed stirred 15min in blender, uniform mixed liquor is obtained, wherein high-speed stirring
The revolving speed mixed is 1500r/min；
Step 4, uniform mixed liquor is filtered, obtains 3D printing photosensitive resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301233.XA CN109401283A (en) | 2018-11-02 | 2018-11-02 | A kind of water-based system DLP 3D printing photosensitive resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301233.XA CN109401283A (en) | 2018-11-02 | 2018-11-02 | A kind of water-based system DLP 3D printing photosensitive resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109401283A true CN109401283A (en) | 2019-03-01 |
Family
ID=65471591
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|---|---|---|---|
| CN201811301233.XA Pending CN109401283A (en) | 2018-11-02 | 2018-11-02 | A kind of water-based system DLP 3D printing photosensitive resin |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110818852A (en) * | 2019-11-05 | 2020-02-21 | 无锡市腰果新材料有限公司 | Washable high-precision DLP type 3D printing photosensitive resin and preparation method thereof |
| CN113045715A (en) * | 2021-03-16 | 2021-06-29 | 无锡市腰果新材料有限公司 | Washable high-temperature-resistant conductive 3D printing photocuring material and printing process thereof |
| CN114085328A (en) * | 2021-08-10 | 2022-02-25 | 珠海市三绿实业有限公司 | Washable LCD type 3D printing photosensitive resin and preparation method thereof |
| CN114656597A (en) * | 2022-02-28 | 2022-06-24 | 深圳锐沣科技有限公司 | Washable DLP3D printing dental cast resin |
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| CN110818852A (en) * | 2019-11-05 | 2020-02-21 | 无锡市腰果新材料有限公司 | Washable high-precision DLP type 3D printing photosensitive resin and preparation method thereof |
| CN113045715A (en) * | 2021-03-16 | 2021-06-29 | 无锡市腰果新材料有限公司 | Washable high-temperature-resistant conductive 3D printing photocuring material and printing process thereof |
| CN114085328A (en) * | 2021-08-10 | 2022-02-25 | 珠海市三绿实业有限公司 | Washable LCD type 3D printing photosensitive resin and preparation method thereof |
| CN114656597A (en) * | 2022-02-28 | 2022-06-24 | 深圳锐沣科技有限公司 | Washable DLP3D printing dental cast resin |
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Application publication date: 20190301 |