CN103709917A - Post-processing liquid for three-dimensional printing device, and preparation method and application thereof - Google Patents
Post-processing liquid for three-dimensional printing device, and preparation method and application thereof Download PDFInfo
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- 239000007788 liquid Substances 0.000 title claims abstract description 98
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000010146 3D printing Methods 0.000 title abstract description 7
- 238000012805 post-processing Methods 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 39
- 239000000839 emulsion Substances 0.000 claims abstract description 36
- 239000004814 polyurethane Substances 0.000 claims abstract description 24
- 229920002635 polyurethane Polymers 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000008595 infiltration Effects 0.000 claims abstract description 22
- 238000001764 infiltration Methods 0.000 claims abstract description 22
- 239000004593 Epoxy Substances 0.000 claims abstract description 20
- 239000007822 coupling agent Substances 0.000 claims abstract description 19
- 239000012153 distilled water Substances 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 238000011049 filling Methods 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 63
- 238000007639 printing Methods 0.000 claims description 63
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 23
- 239000012466 permeate Substances 0.000 claims description 20
- 239000010703 silicon Substances 0.000 claims description 16
- 229910052710 silicon Inorganic materials 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005496 tempering Methods 0.000 claims description 6
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 239000012744 reinforcing agent Substances 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 4
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 229910052602 gypsum Inorganic materials 0.000 abstract description 12
- 239000010440 gypsum Substances 0.000 abstract description 12
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract 2
- 229920002472 Starch Polymers 0.000 abstract 1
- 239000003623 enhancer Substances 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 235000019698 starch Nutrition 0.000 abstract 1
- 239000008107 starch Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 13
- 238000007906 compression Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- 239000002250 absorbent Substances 0.000 description 10
- 238000001035 drying Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 241000237502 Ostreidae Species 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 7
- 235000020636 oyster Nutrition 0.000 description 7
- 239000004819 Drying adhesive Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 206010023126 Jaundice Diseases 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
本发明公开了一种三维打印器件后处理液制备方法及应用。该后处理液包括分别放置的主剂A液和主剂B液；主剂A液为填充强化剂；主剂B液由40～70%的水性聚氨酯乳液、5～30%水性环氧乳液、10～30%蒸馏水、10～40%硅溶胶、0.2～0.7%偶联剂、0.2～0.5%渗透剂组成。制备时，水性聚氨酯乳液和水性环氧乳液加入蒸馏水中混合后，加入偶联剂和硅溶胶，分散；再加入渗透剂，搅拌制备出主剂B液。使用时，将三维打印器件浸泡在主剂A液中，渗透后，再浸泡在主剂B液中，烘干。本发明后处理液能够有效地提高三维打印器件的强度和耐水性，并具有防止器件脱粉，适用于淀粉基、石膏基或纤维基三维打印器件的后处理。The invention discloses a preparation method and application of a three-dimensional printing device post-treatment liquid. The post-treatment solution includes main agent A liquid and main agent B liquid respectively; the main agent A liquid is a filling enhancer; the main agent B liquid is composed of 40-70% water-based polyurethane emulsion, 5-30% water-based epoxy emulsion, 10-30% distilled water, 10-40% silica sol, 0.2-0.7% coupling agent, 0.2-0.5% penetrating agent. During preparation, add water-based polyurethane emulsion and water-based epoxy emulsion into distilled water and mix, then add coupling agent and silica sol to disperse; then add penetrant and stir to prepare main agent B liquid. When in use, immerse the three-dimensional printing device in the main agent A liquid, soak it in the main agent B liquid after infiltration, and dry it. The post-treatment liquid of the present invention can effectively improve the strength and water resistance of the three-dimensional printing device, and prevent the device from falling off powder, and is suitable for the post-treatment of the starch-based, gypsum-based or fiber-based three-dimensional printing device.
Description
Technical field
The present invention relates to a kind of aftertreatment fluid of 3 D-printing device, particularly relate to a kind of aftertreatment fluid for 3 D-printing device and preparation method thereof and application, belong to the Material Field of rapid shaping.
Background technology
Three-dimensional fast shaping successively prints superposition method, is a kind of apply wide and fast forming technique of processing speed.It is applicable to the geometry structure of hundreds of different various complexity of Application Areas, and supports multiple material type.But because matrix material three-dimensional printing technology bonds powdered material and moulding layer by layer by jet binder, there is more microvoid structure in printout surface and inside, so the intensity of printing shaping part is very limited, need to be through aftertreatment strengthening.
The many post-treating methods that use are at present that instant drying adhesive is brushed, and its reinforced effects is good, and shortcoming is that speed of response is too fast, preservation period is short, poor water resistance, and weather resistance is bad, part instant drying adhesive solidifies glue face jaundice after latter 2 months, brushes and cannot guarantee to film evenly simultaneously.
Summary of the invention
The object of invention is for problems such as 3 D-printing device strength is not enough, water-absorbent is poor, surface irregularity, easy sheddings, a kind of print device intensity and water tolerance that can effectively improve 3 D-printing is provided, prevents shedding and make smooth aftertreatment fluid of device surface and preparation method thereof.
Another object of the present invention is to provide the application method of the described aftertreatment fluid for 3 D-printing device.
Object of the present invention realizes by following technical solution:
For a 3 D-printing device aftertreatment fluid, it is characterized in that, by percentage to the quality, by host A liquid and host B liquid, formed:
Described host A liquid is for filling reinforcer.
Described host B liquid, by percentage to the quality, formula comprises following component:
Described aqurous ployurethane emulsion is water-based aliphaic polyurethane water dispersion, and viscosity is 25～50s, the translucent milky emulsion that solid content is 35～38%;
Described silicon sol is one or more in AJN-830, SKP-27, S-35;
Described coupling agent is one or more in type siloxane coupling agent γ-aminopropyl triethoxysilane, γ-aminopropyltrimethoxysilane, N-β-(aminoethyl)-γ-aminopropyl methyl dimethoxysilane, γ-glycidyl ether oxygen propyl trimethoxy silicane or γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane;
Described permeate agent is one or more in penetrating agent JFC, fast penetrant T, permeate agent OE-35, superpower penetrating agent JFC-E;
During preparation, after aqueous polyurethane emulsion and aqueous epoxy emulsion are added and mixed in appropriate distilled water, low whipping speed is 300～700rpm, adds coupling agent and silicon sol, disperses; Add again permeate agent, stir 30min～3h, prepare the aftertreatment fluid that viscosity is 8～40s;
Described host A is the DL31-concrete sealing reinforcing agent of Dongguan City Hui Zhi Nono-material Science & Technology Ltd., the agent of DL32-concrete infiltration tempering, the silica-based waterproof agent of Dow corning or U.S. high-tech chemical industry Chem-crete CAF140;
Described silicon sol is one or more of flooding in Foshan in the AJN-830 of glasswork, the SKP-27 of Guangzhou Hui Hegui Products Co., Ltd, S-35;
Described coupling agent is one or more in Aladdin reagent γ-aminopropyl triethoxysilane, γ-aminopropyltrimethoxysilane, γ-glycidyl ether oxygen propyl trimethoxy silicane, West Asia reagent N-β-(aminoethyl)-γ-aminopropyl methyl dimethoxysilane, the γ of Qingdao Xu Xin Chemical Co., Ltd.-(2,3-epoxy the third oxygen) propyl trimethoxy silicane;
Described permeate agent is one or more in DOW Chemical penetrating agent JFC, Jiangsu Hai'an Petrochemical Plant's fast penetrant T, permeate agent OE-35, the superpower penetrating agent JFC-E of the luxuriant prosperous chemical industry in Jiangsu;
In order further to realize the object of the invention, described aqueous polyurethane emulsion is the PU-202B of Guangzhou Guan Zhi Chemical Co., Ltd., PU-303B, the Acure8110 of Shanghai Yuan He Chemical Co., Ltd., Bayhydrol XP2558 or the TC-103 of Guangdong Tian Yin Chemical Co., Ltd.;
Described aqueous epoxy emulsion is the 3520-WY-55A of Guangzhou Li Baoshi Trade Development company limited, 3540-WY-55A or 3522;
The application method of this aftertreatment fluid is as follows: the 3 D-printing device of moulding is immersed in to 1～30s in host A liquid, after host A liquid permeates completely, be immersed in again 1～30s in host B liquid and with filter paper, blot the obvious residual solution in surface on print device surface, at 30～100 ℃, dry 1～5h.
The technical indicator of the aftertreatment fluid of preparation is as follows as stated above:
Outward appearance: milky white liquid
Viscosity: 8～40s
Device ultimate compression strength: >9MPa after immersion aftertreatment fluid
After soaking aftertreatment fluid, device surface is smooth, not dry linting
Device water-intake rate: <11% after immersion aftertreatment fluid
With respect to prior art, tool of the present invention has the following advantages:
1) of the present invention for 3 D-printing device aftertreatment fluid, selecting commercially available sealing reinforcer or the agent of infiltration tempering is host A liquid, and host B liquid be take aqueous polyurethane emulsion as main film forming substance.This emulsion has that breaking tenacity large (being greater than 35MPa), viscosity are little, the fine and smooth tough and tensile and good solvent resistance of film forming, but the film forming at substrate surface is thinner; Add a kind of commercially available good to base material sticking power, admittedly containing high aqueous epoxy emulsion, can increase film thickness and hardness.
2) the present invention adds proper amount of silicon colloidal sol.The silanol base activity of the colloid silica in silicon sol is larger, can directly be penetrated into base material inside by kapillary, is firmly adsorbed on substrate surface.After polyaminoester emulsion blend film forming, can improve the sticking power of filming.Adding of silane coupling agent, not only play the effect that prevents silicon sol cohesion, changed organic-inorganic material interface adhesion simultaneously, improved adhesive property.
3) aftertreatment fluid that the present invention prepares can standing storage, has overcome instant drying adhesive short shortcoming duration of service.Adopt aqueous materials, raw material is easy to get, and toxicity is lower, lower to the detrimentally affect of human body and environment, and operational safety, is conducive to marketing.
4) the present invention is simple, easy to use for 3 D-printing device aftertreatment fluid preparation method, has a good application prospect.
Embodiment
For understanding better the present invention, below in conjunction with embodiment, the present invention is elaborated, but protection scope of the present invention is not limited to the scope of following embodiment statement.
The cubes that it is 30cm * 30cm * 30cm that the present invention tests with gypsum base 3 D-printing device, prints gained, surface irregularity for making gypsum base powder and aqueous binders by oneself via the Z Corporation Z310 of company three-dimensional printing machine, easily shedding, intensity difference, water-repellancy is poor, in soaked 10s, dissolves.
The aftertreatment fluid testing method that each example of the present invention is implemented preparation is all according to following standard testing
Embodiment 1
A kind ofly for 3 D-printing device aftertreatment fluid host A liquid, select DL31-concrete sealing reinforcing agent.
For a 3 D-printing device aftertreatment fluid host B liquid, by the raw material of following weight percent proportioning, formed:
Aqueous polyurethane PU-202B viscosity for 3 D-printing device aftertreatment fluid host B liquid is 25s, the translucent oyster white that solid content is 35%.
Preparation method for 3 D-printing device aftertreatment fluid host B liquid: 57% aqueous polyurethane emulsion PU-202B and 6% aqueous epoxy emulsion 3540-WY-55A are added after 17% distilled water mixing, low whipping speed is 500rpm, add 0.5% coupling agent γ-glycidyl ether oxygen propyl trimethoxy silicane and 19% silicon sol AJN-830, disperse; Add 0.5% superpower penetrating agent JFC-E again, stir 30min, preparing viscosity is the host B liquid of 23s.
Using method for 3 D-printing device aftertreatment fluid: the gypsum base 3 D-printing device of moulding is immersed in to host A liquid 5s, after liquid permeates completely, be immersed in 5s in host B liquid, infiltration process finds that infiltration liquid is in printout surface rapid diffusion again; Dry the remaining liq on print device surface, 80 ℃ of preliminary drying 3h.Carry out respectively ultimate compression strength, water-absorbent, surface characteristic, whether shedding is tested, and test result is as shown in table 1.
Embodiment 2
A kind ofly for 3 D-printing device aftertreatment fluid host A liquid, select silica-based waterproof agent.
For a 3 D-printing device aftertreatment fluid host B liquid, by the raw material of following weight proportion, formed:
Aqueous polyurethane Bayhydrol XP2558 viscosity for 3 D-printing device aftertreatment fluid host B liquid is 40s, the translucent oyster white that solid content is 37%.
Preparation method for 3 D-printing device aftertreatment fluid host B liquid: 60% aqueous polyurethane emulsion Bayhydrol XP2558 and 8% aqueous epoxy emulsion 3540-WY-55A are added after 15% distilled water mixing, low whipping speed is 450rpm, add 0.7% coupling agent N-β-(aminoethyl)-γ-aminopropyl methyl dimethoxysilane and 16% silicon sol SKP-27, disperse; Add 0.3% permeate agent OE-35 again, stir 1h, preparing viscosity is the host B liquid of 20s.
Using method for 3 D-printing device aftertreatment fluid: the gypsum base 3 D-printing device of moulding (is preferably briefly described this device, as concrete what device, feature roughly) be immersed in 10s in host A liquid, after liquid permeates completely, be immersed in 10s in host B liquid, infiltration process finds that infiltration liquid is in printout surface rapid diffusion again; Dry the remaining liq on print device surface, 70 ℃ of preliminary drying 3h.Carry out respectively ultimate compression strength, water-absorbent, surface characteristic, whether shedding is tested, and test result is as shown in table 1.
Embodiment 3
A kind ofly for 3 D-printing device aftertreatment fluid host A liquid, select the agent of DL32-concrete infiltration tempering.
For a 3 D-printing device aftertreatment fluid host B liquid, by the raw material of following weight proportion, formed:
Aqueous polyurethane PU-303B viscosity for 3 D-printing device aftertreatment fluid host B liquid is 27s, the translucent oyster white that solid content is 35%.
Preparation method for 3 D-printing device aftertreatment fluid host B liquid: 50% aqueous polyurethane emulsion PU-303B and 25% aqueous epoxy emulsion 3522 are added after 7% distilled water mixing, low whipping speed is 600rpm, add 0.7% coupling agent γ-aminopropyl triethoxysilane and 17% silicon sol SKP-27, disperse; Add 0.3% fast penetrant T again, stir 30min, preparing viscosity is the host B liquid of 18s.
Using method for 3 D-printing device aftertreatment fluid: the gypsum base 3 D-printing device of moulding is immersed in to host A liquid 15s, after liquid permeates completely, be immersed in 5s in host B liquid, infiltration process finds that infiltration liquid is in printout surface rapid diffusion again; Dry the remaining liq on print device surface, 85 ℃ of preliminary drying 2h.Carry out respectively ultimate compression strength, water-absorbent, surface characteristic, whether shedding is tested, and test result is as shown in table 1.
Embodiment 4
A kind ofly for 3 D-printing device aftertreatment fluid host A liquid, select the agent of DL32-concrete infiltration tempering.
For a 3 D-printing device aftertreatment fluid host B liquid, by the raw material of following weight proportion, formed:
Aqueous polyurethane TC-103 viscosity for 3 D-printing device aftertreatment fluid host B liquid is 30s, the translucent oyster white that solid content is 33%.
Preparation method for 3 D-printing device aftertreatment fluid host B liquid: 70% aqueous polyurethane emulsion TC-103 and 5% aqueous epoxy emulsion 3520-WY-55A are added after 13.9% distilled water mixing, low whipping speed is 400rpm, add 0.6% coupling agent γ-aminopropyltrimethoxysilane and 10% silicon sol AJN-830, disperse; Add 0.5% permeate agent OE-35 again, stir 2h, preparing viscosity is the host B liquid of 20s.
Using method for 3 D-printing device aftertreatment fluid: the gypsum base 3 D-printing device of moulding is immersed in to host A liquid 5s, after liquid permeates completely, be immersed in 15s in host B liquid, infiltration process finds that infiltration liquid is in printout surface rapid diffusion again; Dry the remaining liq on print device surface, 80 ℃ of preliminary drying 2h.Carry out respectively ultimate compression strength, water-absorbent, surface characteristic, whether shedding is tested, and test result is as shown in table 1.
Embodiment 5
A kind ofly for 3 D-printing device aftertreatment fluid host A liquid, select Chem-crete CAF140.
For a 3 D-printing device aftertreatment fluid host B liquid, by the raw material of following weight proportion, formed:
Aqueous polyurethane Acure8110 viscosity for 3 D-printing device aftertreatment fluid host B liquid is 40s, the translucent oyster white that solid content is 35%.
Preparation method for 3 D-printing device aftertreatment fluid host B liquid: 45% aqueous polyurethane emulsion Acure8110 and 15% aqueous epoxy emulsion 3520-WY-55A are added after 19% distilled water mixing, low whipping speed is 450rpm, add 0.5% coupling agent γ-glycidyl ether oxygen propyl trimethoxy silicane and 20% silicon sol S-35, disperse; Add 0.5% penetrating agent JFC again, stir 50min, preparing viscosity is the host B liquid of 14s.
Using method for 3 D-printing device aftertreatment fluid: the gypsum base 3 D-printing device of moulding is immersed in to host A liquid 20s, after liquid permeates completely, be immersed in 10s in host B liquid, infiltration process finds that infiltration liquid is in printout surface rapid diffusion again; Dry the remaining liq on print device surface, 50 ℃ of preliminary drying 4h.Carry out respectively ultimate compression strength, water-absorbent, surface characteristic, whether shedding is tested, and test result is as shown in table 1.
Embodiment 6
A kind ofly for 3 D-printing device aftertreatment fluid host A liquid, select Chem-crete CAF140.
For a 3 D-printing device aftertreatment fluid host B liquid, by the raw material of following weight proportion, formed:
Aqueous polyurethane PU-202B viscosity for 3 D-printing device aftertreatment fluid host B liquid is 25s, the translucent oyster white that solid content is 35%.
Preparation method for 3 D-printing device aftertreatment fluid host B liquid: 60% aqueous polyurethane emulsion PU-202B and 15% aqueous epoxy emulsion 3540-WY-55A are added after 11% distilled water mixing, low whipping speed is 325rpm, add 0.4% coupling agent γ-aminopropyl triethoxysilane and 13% silicon sol S-35, disperse; Add 0.6% superpower penetrating agent JFC-E again, stir 2h, preparing viscosity is the host B liquid of 18s.
Using method for 3 D-printing device aftertreatment fluid: the gypsum base 3 D-printing device of moulding is immersed in to host A liquid 10s, after liquid permeates completely, be immersed in 15s in host B liquid, infiltration process finds that infiltration liquid is in printout surface rapid diffusion again; Dry the remaining liq on print device surface, 90 ℃ of preliminary drying 2h.Carry out respectively ultimate compression strength, water-absorbent, surface characteristic, whether shedding is tested, and test result is as shown in table 1.
Embodiment 7
A kind ofly for 3 D-printing device aftertreatment fluid host A liquid, select DL31-concrete sealing reinforcing agent.
For a 3 D-printing device aftertreatment fluid host B liquid, by the raw material of following weight proportion, formed:
Aqueous polyurethane Acure8110 viscosity for 3 D-printing device aftertreatment fluid host B liquid is 40s, the translucent oyster white that solid content is 35%.
Preparation method for 3 D-printing device aftertreatment fluid host B liquid: 55% aqueous polyurethane emulsion Acure8110 and 20% aqueous epoxy emulsion 3522 are added after 14.2% distilled water mixing, low whipping speed is 450rpm, add 0.4% coupling agent γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane and 10% silicon sol AJN-830, disperse; Add 0.4% penetrating agent JFC again, stir 1h, preparing viscosity is the host B liquid of 18s.
Using method for 3 D-printing device aftertreatment fluid: the gypsum base 3 D-printing device of moulding is immersed in to host A liquid 25s, after liquid permeates completely, be immersed in 10s in host B liquid, infiltration process finds that infiltration liquid is in printout surface rapid diffusion again; Dry the remaining liq on print device surface, 85 ℃ of preliminary drying 4h.Carry out respectively ultimate compression strength, water-absorbent, surface characteristic, whether shedding is tested, and test result is as shown in table 1.
Comparison example 1
According to the preparation method of embodiment 7 and using method, do not add coupling agent γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane.
Comparison example 2
Commercially available 502 instant drying adhesives are brushed on gypsum base 3 D-printing device to 80 ℃ of preliminary drying 3h.Carry out respectively ultimate compression strength, water-absorbent, surface characteristic, whether shedding is tested, and test result is as shown in table 1.
Blank assay
Do not pass through the gypsum base 3 D-printing device of any processing.
Table 1 is the fundamental property test of embodiment of the present invention gained aftertreatment fluid.
Table 1 aftertreatment fluid fundamental property
From table 1 test result, the ultimate compression strength of embodiment 1-7 is all higher than the device without processing later, and with respect to the maximum 5.9Mpa that improves of blank assay, water-intake rate is all lower than 11%.It is high that the device that aftertreatment fluid prepared by the present invention was processed shows ultimate compression strength, water-tolerant, and surface smoothness is good, glossy, the excellent properties of not shedding.Immersion process finds that the infiltration of host A liquid is very fast, ultimate compression strength improves explanation host A liquid and infiltrates through the gap of print device and generated crystallization or harder film has been filled in device gap, and the reduction of water-intake rate explanation host B liquid has formed water tolerance film at device surface.
In comparison example 1, water-intake rate is than having improved 11.4% in embodiment 7, and surface film is easily peeled off.Be described adding of coupling agent, play the effect of a bridge joint, improved the fusion of host A liquid and host B liquid, formed stable composite membrane system.
By comparison example 2, find that the water-absorbent of the aftertreatment fluid that the present invention prepares is far above commercially available 502 instant drying adhesives.Ultimate compression strength is also a little more than 502 instant drying adhesives.But the using method of the aftertreatment fluid of the present invention's preparation is simple, pollution-free, and be easy to store.
The above embodiment of the present invention is not determinate.For a person skilled in the art, can on basis of the present invention, do corresponding changes and improvements, but within should belonging to the protection domain of patent of the present invention.
Claims (6)
1. for a 3 D-printing device aftertreatment fluid, it is characterized in that, comprise host A liquid and the host B liquid placed respectively:
Described host A liquid is as filling reinforcer; Described host A liquid is DL31-concrete sealing reinforcing agent, the agent of DL32-concrete infiltration tempering, silica-based waterproof agent or Chem-crete CAF140;
Described host B liquid, by percentage to the quality, formula comprises following component:
Described aqurous ployurethane emulsion is water-based aliphaic polyurethane water dispersion, and viscosity is 25～50s, the translucent milky emulsion that solid content is 35～38%;
Described silicon sol is one or more in AJN-830, SKP-27 or S-35;
Described coupling agent is one or more in type siloxane coupling agent γ-aminopropyl triethoxysilane, γ-aminopropyltrimethoxysilane, N-β-(aminoethyl)-γ-aminopropyl methyl dimethoxysilane, γ-glycidyl ether oxygen propyl trimethoxy silicane or γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane;
Described permeate agent is one or more in penetrating agent JFC, fast penetrant T, permeate agent OE-35 or superpower penetrating agent JFC-E;
During preparation, after aqueous polyurethane emulsion and aqueous epoxy emulsion are added and mixed in distilled water, low whipping speed is 300～700rpm, adds coupling agent and silicon sol, disperses; Add permeate agent again, stir 30min～3h, preparing viscosity is the host B liquid of 8～40s.
2. according to claim 1 for 3 D-printing device aftertreatment fluid, it is characterized in that: described host A liquid is DL31-concrete sealing reinforcing agent the agent of DL32-concrete infiltration tempering, silica-based waterproof agent or Chem-crete CAF140.
3. according to claim 1 for 3 D-printing device aftertreatment fluid, it is characterized in that: described aqueous polyurethane emulsion is PU-202B, PU-303B, Acure8110, Bayhydrol XP2558 or TC-103.
4. according to claim 1 for 3 D-printing device aftertreatment fluid, it is characterized in that: described aqueous epoxy emulsion is 3520-WY-55A, 3540-WY-55A or 3522.
5. the preparation method for 3 D-printing device aftertreatment fluid described in claim 1-4 any one, it is characterized in that comprising the following steps: after getting and mixing in the aqueous polyurethane emulsion of prescription quality part and distilled water that aqueous epoxy emulsion adds prescription quality part, low whipping speed is 300～700rpm, the coupling agent and the silicon sol that add prescription quality part, disperse; Add again prescription quality part permeate agent, stir 30min～3h, prepare the aftertreatment fluid that viscosity is 8～40s.
6. the application method for 3 D-printing device aftertreatment fluid described in claim 1-5 any one, it is characterized in that comprising the following steps: the 3 D-printing device of moulding is immersed in to 1～30s in host A liquid, after host A liquid permeates completely, be immersed in again 1～30s in host B liquid and with filter paper, blot the obvious residual solution in surface on print device surface, at 30～100 ℃, dry 1～5h.
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