1 0 0 0 OA 3Dゲルプリンターでの造形に適した低粘度ゲル材料の開発と機械特性の評価
- 著者
- 田勢 泰士 齊藤 梓 太田 崇文 佐藤 慧 高松 久一郎 吉田 一也 川上 勝 古川 英光
- 出版者
- 一般社団法人 日本機械学会
- 雑誌
- 日本機械学会論文集 (ISSN:21879761)
- 巻号頁・発行日
- vol.84, no.858, pp.17-00459-17-00459, 2018 (Released:2018-02-25)
- 参考文献数
- 14
Our group has developed a 3D gel printer called "SWIM - ER" (Soft and Wet Industrial Material - Easy Realizer). Here we are aiming to improve the gel material used in the SWIM-ER system for problems related to free forming and mechanical strength. The composition of the high strength gel material with low viscosity and easy modeling was clarified by adjusting the concentration of the crosslinking agent of 1st gel against the problem that the viscosity of the material is too high and it was difficult to shape. We tried tear tests in addition to various evaluation tests, tensile tests, compression tests. We thought that we can estimate and evaluate dissipation and diffusion of fracture energy by microscopic observation of specimens after tear tests.
1 0 0 0 OA 3Dゲルプリンター用透明ゲル工業材料
- 著者
- 田勢 泰士 太田 崇文 岡田 耕治 高松 久一郎 齊藤 梓 川上 勝 古川 英光
- 出版者
- 一般社団法人 日本機械学会
- 雑誌
- 日本機械学会論文集 (ISSN:21879761)
- 巻号頁・発行日
- vol.83, no.849, pp.17-00003-17-00003, 2017 (Released:2017-05-25)
- 参考文献数
- 14
- 被引用文献数
- 3
Recently our group developed 3D gel printer named “SWIM-ER” (soft and wet industrial material - easy realizer). Here we aim to improve the gel materials used for SWIM-ER system about the problems around free-shaping, transparency, and mechanical strength. To overcome these problems, we tried to use UV absorbers, AS150 (Nippon Kayaku Co.,Ltd.) and KEMISORB11S (CHEMIPRO KASEI Co.,Ltd.) and found the latter absorber kept transparency well. We improved the maximum tensile stress about 2 times and the maximum tensile strain about 4 times by changing the kind of cross-linker from methylene bis-acrylamide (MBAA) type to diethylene glycol dimethacrylate (DEGDMA) type. We also found that the maximum tensile stress was improved about 1.3 times by changing the blend ratio of 1st gel powder and 2nd gel solution in the preparation of particle-double network gels (P-DN gel). Based on these two improvements, we 3D-printed the transparent and hollow structure of the high strength gels with the maximum tensile stress of 0.5 MPa, which will be comparable to the maximum tensile stress of living organs like the stomach and small intestine in our body.