Effect of temperature, viscosity and surface tension on gelatine structures produced by modified 3D printer

3rd International Conference on Smart Material Research

Kalkandelen, C.^1 ; Ozbek, B.^2,3 ; Ergul, N.M.^2,3 ; Akyol, S.^4 ; Moukbil, Y.^2,5 ; Oktar, F.N.^2,5 ; Ekren, N.^2,6 ; Kilic, O.^2,7 ; Kilic, B.^8 ; Gunduz, O.^2,9

Department of Biomed. Devices Tech., Vocational School of Technical Sciences, Istanbul Univ., Istanbul

34320, Turkey^1

Advanced Nanomater. Research Lab., Faculty of Technology, Marmara Univ., Istanbul

34722, Turkey^2

Department of Metallurgical and Materials Engineer., Institute of Pure and Applied Sciences, Marmara Univ., Istanbul

34722, Turkey^3

Istanbul University, Cerrahpasa Medical School, Istanbul

34096, Turkey^4

Department of Bioengineer, Faculty of Engineer, Marmara Univ., Istanbul

34722, Turkey^5

Department of Electric and Electronic Eng, Faculty of Technology, Marmara Univ., Istanbul

34722, Turkey^6

Department of Electric and Electronic Eng, Faculty of Engineer, Marmara Univ., Istanbul

34722, Turkey^7

Yildiz Technical University, Faculty of Electric-Electronic Engineering, Department of Electric Eng., Istanbul

34220, Turkey^8

Department of Metallurg. and Material. Engineer., Faculty of Technology, Marmara Univ., Istanbul

34722, Turkey^9

关键词: 3-dimensional;    Computer assistant;    Effect of temperature;    High temperature;    Lower temperatures;    Original design;    Printing machines;    Scaffold structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/293/1/012001/pdf
DOI  :  10.1088/1757-899X/293/1/012001

来源: IOP

【 摘 要 】

In the present study, gelatine scaffolds were manufactured by using modified 3D (3 Dimensional) printing machine and the effect of different parameters on scaffold structure were investigated. Such as; temperature, viscosity and surface tension of the gelatine solutions. The varying of gelatine solutions (1, 3, 5, 10, 15 and 20 wt.%) were prepared and characterized. It has been detected that, viscosity of those solutions were highly influenced by temperature and gelatine concentration. Specific CAD (Computer Assistant Design) model which has 67% porosity and original design were created via computer software. However, at high temperatures gelatine solutions caused like liquid but at the lower temperatures were observed the opposite behaviour. In addition to that, viscosity of 1,3,5 wt.% solutions were not enough to build a structure and 20 wt.% gelatine solution too hard to handle, because of the sudden viscosity changes with temperature. Even though, scaffold of the 20 wt.% gelatine solution printed hardly but it was observed the best printed solutions, which were 10 and 15 wt.% gelatine solutions. As a result, 3D printing of gelatine were found the values of the best temperature, viscosity, surface tension and gelatine concentration such as 25-35 °C, 36-163 cP, 46-59 mN/m and 15 wt.% gelatine concentration respectively.