CN102660107A - Post-treatment agent and method for using same to treat eucalyptus/PES (polyether sulfone) composite powder formed part formed by selective laser sintering - Google Patents
Post-treatment agent and method for using same to treat eucalyptus/PES (polyether sulfone) composite powder formed part formed by selective laser sintering Download PDFInfo
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- CN102660107A CN102660107A CN2012101742743A CN201210174274A CN102660107A CN 102660107 A CN102660107 A CN 102660107A CN 2012101742743 A CN2012101742743 A CN 2012101742743A CN 201210174274 A CN201210174274 A CN 201210174274A CN 102660107 A CN102660107 A CN 102660107A
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- formed part
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 54
- 239000000843 powder Substances 0.000 title claims abstract description 32
- 238000000110 selective laser sintering Methods 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 17
- 244000166124 Eucalyptus globulus Species 0.000 title claims abstract 6
- 239000004695 Polyether sulfone Substances 0.000 title abstract 6
- 229920006393 polyether sulfone Polymers 0.000 title abstract 6
- 239000003822 epoxy resin Substances 0.000 claims abstract description 10
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 8
- 238000000149 argon plasma sintering Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 3
- 239000002023 wood Substances 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000002791 soaking Methods 0.000 abstract description 2
- 239000003085 diluting agent Substances 0.000 abstract 2
- 238000005452 bending Methods 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 241000219927 Eucalyptus Species 0.000 description 15
- 239000000463 material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 2
- 235000010980 cellulose Nutrition 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229940089401 xylon Drugs 0.000 description 1
Abstract
The invention relates to post-treatment agent and a method for using the same to treat a eucalyptus/PES (polyether sulfone) composite powder formed part formed by selective laser sintering, relates to a post-treatment method of the eucalyptus/PES (polyether sulfone) composite powder formed part formed by selective laser sintering, and overcome the defects that a formed part made of wood/rubber composite powder by selective laser sintering is high porosity and low in strength, and the formed part subjected to ultraviolet irradiation is prone to oxydative degradation resulting in deterioration of mechanical properties. The post-treatment agent is composed of a component A and a component B, the component A is composed of epoxy resin and diluent, and the component B is composed of firming agent and diluent. The post-treatment method includes: firstly, mixing the component A and the component B; and secondly, soaking the formed part in the mixture prior to baking. By the post-treatment method, the size precision of the formed part is guaranteed, mechanical properties of the formed part can be improved greatly, impact strength of the formed part is about doubled, tensile strength of the formed part is increased by 20 times, and bending strength of the formed part is increased by about 15 times.
Description
Technical field
The present invention relates to the post-treating method of a kind of selective laser sintering Eucalyptus/PES composite powder profiled member.
Background technology
Along with being gradually improved of Selective Laser Sintering; Gradually sight is shifted to field of materials both at home and abroad; Reduce material cost; Make this advanced manufacturing technology be more widely used, become the focus of domestic and international concern, so the design and research of selective laser sintering rapid forming novel material enjoys attention.
Yet the exploitation for this technology novel material is the comparison difficulty; Sinter molding is accompanied by contraction, warpage, distortion etc. often, owing to be under the condition of not having pressure, to process, so the combination between the powder particle is not firm; The space is many, and everything inborn deficiency makes that all the performance of product is not high.Because the restriction of various factors; " green " that direct sintering obtained, intensity can't guarantee, can not satisfy the requirement of use; Just can improve the intensity and the performance of prototype through the mode that adopts aftertreatment in this case, thereby satisfy certain request for utilization.
Eucalyptus/PES composite powder is mainly mixed by Eucalyptus particle and hot-melt adhesive powder particle; The wood powder particle volume is big and be strip or needle-like; Its distribution form in material monolithic differs; The wood powder that polarity is just in time opposite in addition can't directly combine with rubber powder granule, and this just uses the profiled member voidage that obtains behind the sintering higher relatively, thereby has influenced the intensity of profiled member more.Therefore be a necessary stage with aftertreatment as the rearmounted enhancement process of prototype.
Summary of the invention
The present invention will solve employing wood powder/rubber powder mixed powder, and to carry out selective laser sintering gained product voidage big; Intensity is low; Profiled member receives to be prone to oxidative degradation after the uviolizing and the defective that causes mechanical property to degenerate, and proposes the method for post-treatment agent and the laser sintered Eucalyptus of processing selecting property/PES composite powder profiled member thereof.
Post-treatment agent is made up of A component and B component, and the A component is 1 by volume ratio: the epoxy resin and the thinner of (1～2) are formed, and the B component is 1 by volume ratio: the solidifying agent and the thinner of (1～2) are formed; Obtain said post-treatment agent after during use A component and B component being mixed; By volume, the amount ratio of A component and B component is 1:1.
Said thinner is acetone or ETHYLE ACETATE.
The method of post-treatment agent processing selecting property laser sintering and moulding spare is accomplished through following step:
Step 1, above-mentioned A component and B component mixed by the volume ratio of 1:1 obtain post-treatment agent;
Step 2, selective laser sintering Eucalyptus/PES composite powder profiled member is soaked into fully with post-treatment agent; Remove the unnecessary post-treatment agent in surface; It is tack-free to the surface to be placed on the thieving paper drying at room temperature then, places baking oven, and baking is at least 48 hours under 40 ± 2 ℃ of temperature; Promptly accomplish the aftertreatment of selective laser sintering and moulding spare.
The thinner that the present invention uses can dissolve impurity such as lignin in the wood powder xylon, pectin, and the thinner of high density can improve for their solvability, can remain a large amount of Mierocrystalline celluloses like this.Because PES can not wrap up the Eucalyptus powder fully, therefore, can be similar to like this and open or expanded the internal passages, and; Mierocrystalline cellulose, the macromole wood powder is a long strip type; And surface ratio is more short-tempered, so epoxy resin, solidifying agent are similar to water-based behind the Macrodilution dilution agent; Capillarity be can strengthen like this, profiled member inside, the effect of impregnation may of raising got into thereby better guide material after-treatment.
Thinner of the present invention guarantee to join post-treatment solution can solidify smoothly and have on the better intensity based; Should reduce the viscosity of epoxy resin and solidifying agent as far as possible; Improve its flowability, thereby high its wellability for profiled member better improves profiled member intensity.
The inventive method guarantees can significantly carry its strong mechanical performance under the situation of profiled member dimensional precision; Shock strength is 1.174KJ/m
2, improve about 2 times; Tensile strength is 4.19MPa, improves 20 times; Flexural strength is that 4.68MPa improves about 15 times, thereby makes profiled member can satisfy certain request for utilization.
Embodiment
Embodiment one: post-treatment agent is made up of A component and B component in this embodiment, and the A component is 1 by volume ratio: the epoxy resin and the thinner of (1～2) are formed, and the B component is 1 by volume ratio: the solidifying agent and the thinner of (1～2) are formed; Obtain said post-treatment agent after during use A component and B component being mixed; By volume, the amount ratio of A component and B component is 1:1.
Embodiment two: what this embodiment and embodiment one were different is: said thinner is acetone or ETHYLE ACETATE.Other is identical with embodiment one.
Embodiment three: what this embodiment was different with embodiment one or two is: said solidifying agent is the universal solidifying agent of DY-650 that Changsha sworn brothers' tackiness agent ltd produces.Other is identical with embodiment one or two.
Embodiment four: what this embodiment was different with one of embodiment one to three is: the A component is that epoxy resin and the thinner of 1:1.5 formed by volume ratio.Other is identical with one of embodiment one to three.
Embodiment five: what this embodiment was different with one of embodiment one to three is: the A component is that epoxy resin and the thinner of 1:1 formed by volume ratio.Other is identical with one of embodiment one to three.
Embodiment six: what this embodiment was different with one of embodiment one to five is: the B component is that solidifying agent and the thinner of 1:1.5 formed by volume ratio.Other is identical with one of embodiment one to five.
Embodiment seven: what this embodiment was different with one of embodiment one to five is: the B component is that solidifying agent and the thinner of 1:1 formed by volume ratio.Other is identical with one of embodiment one to five.
Embodiment eight: the method for post-treatment agent processing selecting property laser sintering and moulding spare is accomplished through following step in this embodiment:
Step 1, embodiment one described A component and B component mixed by the volume ratio of 1:1 obtain post-treatment agent;
Step 2, selective laser sintering Eucalyptus/PES composite powder profiled member is soaked into fully with post-treatment agent; Remove the unnecessary post-treatment agent in surface; It is tack-free to the surface to be placed on the thieving paper drying at room temperature then, places baking oven, and baking is at least 48 hours under 40 ± 2 ℃ of temperature; Promptly accomplish the aftertreatment of selective laser sintering and moulding spare.
Embodiment nine: what this embodiment and embodiment eight were different is: step 2 spreads upon selective laser sintering Eucalyptus/PES composite powder surface of shaped parts with post-treatment agent repeatedly equably with brush.Other step is identical with embodiment eight with parameter.
Embodiment ten: the method for post-treatment agent processing selecting property laser sintering and moulding spare is accomplished through following step in this embodiment:
Step 1, epoxy resin and acetone are got the A component by the volume ratio mixing of 1:1.5; The universal solidifying agent of DY-650 that Changsha sworn brothers' tackiness agent ltd is produced and acetone get the B component by the volume ratio mixing of 1:1.5, again A component and B component are obtained post-treatment agent by the volume ratio mixing of 1:1;
Step 2, the cleaning selective laser sintering Eucalyptus/floating powder of PES composite powder surface of shaped parts; Repeatedly post-treatment agent is spread upon selective laser sintering Eucalyptus/PES composite powder surface of shaped parts equably to soaking into fully with brush; Remove the unnecessary post-treatment agent in surface; It is tack-free to the surface to be placed on the thieving paper drying at room temperature then, places baking oven, and baking is at least 48 hours under 40 ± 2 ℃ of temperature; Promptly accomplish the aftertreatment of selective laser sintering and moulding spare.
Generally smear toward another side, and preferentially begin from the thicker place of part from the one side of part; Change paper more between dry epoch, be bonded on the part to prevent paper.
Compare experiment:
Divide 3 groups and compare experiment, the 1st group of aftertreatment that is used for Eucalyptus/PES composite powder selective laser sintering and moulding spare with this embodiment; The 2nd group is carried out selective laser sintering with Eucalyptus/PES composite powder and is worth profiled member to ooze the wax post-processing operation; The 3rd group is carried out selective laser sintering with Eucalyptus/PES composite powder and is worth profiled member not carry out any post-processing operation.
(laser sintering rapid forming equipment adopts the HPRS-III rapidform machine of the Central China University of Science and Technology)
Machined parameters is selected the most suitable condition of wooden powder: adopt the subregion scan mode; Laser output power is 30～50W; The rate travel of scan laser light beam is 1800mm/s ~ 2000mm/s; The characteristic radius of laser facula is 0.3mm, and the laser beam sweep span is 0.15mm, and lift height is 0.1～0.15mm.
Comparative test result: the shock strength of the 1st group of product that obtains is 1.174KJ/m
2, tensile strength is that 4.19MPa, flexural strength are 4.68MPa, the shock strength of the 2nd group of product that obtains is 0.375KJ/m
2, tensile strength is that 2.4MPa, flexural strength are 2.82MPa, the shock strength of the 3rd group of product that obtains is 0.54KJ/m
2, tensile strength is that 0.22MPa, flexural strength are 0.36MPa.Explain that the product that aftertreatment obtained that this embodiment is used for Eucalyptus/PES composite powder selective laser sintering and moulding spare has better mechanical property.
Claims (7)
1. post-treatment agent is characterized in that post-treatment agent is made up of A component and B component, and the A component is 1 by volume ratio: the epoxy resin and the thinner of (1～2) are formed, and the B component is 1 by volume ratio: the solidifying agent and the thinner of (1～2) are formed; Obtain said post-treatment agent after during use A component and B component being mixed; By volume, the amount ratio of A component and B component is 1:1.
2. post-treatment agent according to claim 1 is characterized in that said thinner is acetone or ETHYLE ACETATE.
3. post-treatment agent according to claim 2 is characterized in that said solidifying agent is the universal solidifying agent of DY-650 that Changsha sworn brothers' tackiness agent ltd produces.
4. according to claim 1,2 or 3 described post-treatment agents, it is characterized in that the A component is that epoxy resin and the thinner of 1:1.5 formed by volume ratio.
5. post-treatment agent according to claim 4 is characterized in that the B component is that solidifying agent and the thinner of 1:1.5 formed by volume ratio.
6. utilize the method for the laser sintered Eucalyptus of the said post-treatment agent processing selecting property of claim 1/PES composite powder profiled member, it is characterized in that the method for post-treatment agent processing selecting property laser sintering and moulding spare is accomplished through following step:
Step 1, the described A component of claim 1 and B component mixed by the volume ratio of 1:1 obtain post-treatment agent;
Step 2, selective laser sintering Eucalyptus/PES composite powder profiled member is soaked into fully with post-treatment agent; Remove the unnecessary post-treatment agent in surface; It is tack-free to the surface to be placed on the thieving paper drying at room temperature then, places baking oven, and baking is at least 48 hours under 40 ± 2 ℃ of temperature; Promptly accomplish the aftertreatment of selective laser sintering and moulding spare.
7. according to the method for the said post-treatment agent processing selecting property of claim 6 laser sintering and moulding spare, it is characterized in that step 2 spreads upon selective laser sintering Eucalyptus/PES composite powder surface of shaped parts with post-treatment agent repeatedly equably with brush.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210174274.3A CN102660107B (en) | 2012-05-31 | 2012-05-31 | Post-treatment agent and method for using same to treat eucalyptus/PES (polyether sulfone) composite powder formed part formed by selective laser sintering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210174274.3A CN102660107B (en) | 2012-05-31 | 2012-05-31 | Post-treatment agent and method for using same to treat eucalyptus/PES (polyether sulfone) composite powder formed part formed by selective laser sintering |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036874A (en) * | 2015-09-08 | 2015-11-11 | 广西鸿发生物科技有限公司 | Amino acid micro element fertilizer |
| CN107617859A (en) * | 2016-12-23 | 2018-01-23 | 合肥盛强数控设备有限公司 | A kind of Digit Control Machine Tool aftertreatment technology based on SLS3D print dies |
| CN109435247A (en) * | 2018-10-22 | 2019-03-08 | 河北英曼卡科技有限公司 | TPU powder selective laser sintering product post-treatment solution makes and uses method |
| US10683381B2 (en) | 2014-12-23 | 2020-06-16 | Bridgestone Americas Tire Operations, Llc | Actinic radiation curable polymeric mixtures, cured polymeric mixtures and related processes |
| US11097531B2 (en) | 2015-12-17 | 2021-08-24 | Bridgestone Americas Tire Operations, Llc | Additive manufacturing cartridges and processes for producing cured polymeric products by additive manufacturing |
| US11453161B2 (en) | 2016-10-27 | 2022-09-27 | Bridgestone Americas Tire Operations, Llc | Processes for producing cured polymeric products by additive manufacturing |
| US11577458B2 (en) | 2018-06-29 | 2023-02-14 | 3M Innovative Properties Company | Additive layer manufacturing method and articles |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2388279A1 (en) * | 2010-05-18 | 2011-11-23 | Cognis IP Management GmbH | Two-part adhesive |
| CN102260451A (en) * | 2011-07-08 | 2011-11-30 | 中国石油天然气集团公司 | Solvent-free epoxy glass flake coating and preparation method |
| WO2012042673A1 (en) * | 2010-10-01 | 2012-04-05 | リケンテクノス株式会社 | Two-pack curable epoxy resin coating composition for floor member, and floor member |
| CN102417805A (en) * | 2011-08-17 | 2012-04-18 | 长沙蓝星化工新材料有限公司 | Room-temperature cured epoxy resin flexible sealant and preparation method thereof |
-
2012
- 2012-05-31 CN CN201210174274.3A patent/CN102660107B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2388279A1 (en) * | 2010-05-18 | 2011-11-23 | Cognis IP Management GmbH | Two-part adhesive |
| WO2012042673A1 (en) * | 2010-10-01 | 2012-04-05 | リケンテクノス株式会社 | Two-pack curable epoxy resin coating composition for floor member, and floor member |
| CN102260451A (en) * | 2011-07-08 | 2011-11-30 | 中国石油天然气集团公司 | Solvent-free epoxy glass flake coating and preparation method |
| CN102417805A (en) * | 2011-08-17 | 2012-04-18 | 长沙蓝星化工新材料有限公司 | Room-temperature cured epoxy resin flexible sealant and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10683381B2 (en) | 2014-12-23 | 2020-06-16 | Bridgestone Americas Tire Operations, Llc | Actinic radiation curable polymeric mixtures, cured polymeric mixtures and related processes |
| US11261279B2 (en) | 2014-12-23 | 2022-03-01 | Bridgestone Americas Tire Operations, Llc | Actinic radiation curable polymeric mixtures, cured polymeric mixtures and related processes |
| US11926688B2 (en) | 2014-12-23 | 2024-03-12 | Bridgestone Americas Tire Operations, Llc | Actinic radiation curable polymeric mixtures, cured polymeric mixtures and related processes |
| CN105036874A (en) * | 2015-09-08 | 2015-11-11 | 广西鸿发生物科技有限公司 | Amino acid micro element fertilizer |
| US11097531B2 (en) | 2015-12-17 | 2021-08-24 | Bridgestone Americas Tire Operations, Llc | Additive manufacturing cartridges and processes for producing cured polymeric products by additive manufacturing |
| US11453161B2 (en) | 2016-10-27 | 2022-09-27 | Bridgestone Americas Tire Operations, Llc | Processes for producing cured polymeric products by additive manufacturing |
| CN107617859A (en) * | 2016-12-23 | 2018-01-23 | 合肥盛强数控设备有限公司 | A kind of Digit Control Machine Tool aftertreatment technology based on SLS3D print dies |
| US11577458B2 (en) | 2018-06-29 | 2023-02-14 | 3M Innovative Properties Company | Additive layer manufacturing method and articles |
| CN109435247A (en) * | 2018-10-22 | 2019-03-08 | 河北英曼卡科技有限公司 | TPU powder selective laser sintering product post-treatment solution makes and uses method |
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