Salaoru Iulia, Zhou Zuoxin, Morris Peter, Gibbons Gregory J
Emerging Technologies Research Centre (EMTERC), De Montfort University; WMG, University of Warwick;
WMG, University of Warwick.
J Vis Exp. 2017 May 11(123):55093. doi: 10.3791/55093.
Inkjet printing is a modern method for polymer processing, and in this work, we demonstrate that this technology is capable of producing polyvinyl alcohol (PVOH) multilayer structures. A polyvinyl alcohol aqueous solution was formulated. The intrinsic properties of the ink, such as surface tension, viscosity, pH, and time stability, were investigated. The PVOH-based ink was a neutral solution (pH 6.7) with a surface tension of 39.3 mN/m and a viscosity of 7.5 cP. The ink displayed pseudoplastic (non-Newtonian shear thinning) behavior at low shear rates, and overall, it demonstrated good time stability. The wettability of the ink on different substrates was investigated, and glass was identified as the most suitable substrate in this particular case. A proprietary 3D inkjet printer was employed to manufacture polymer multilayer structures. The morphology, surface profile, and thickness uniformity of inkjet-printed multilayers were evaluated via optical microscopy.
喷墨打印是一种用于聚合物加工的现代方法，在本研究中，我们证明了该技术能够生产聚乙烯醇（PVOH）多层结构。配制了聚乙烯醇水溶液。研究了油墨的固有特性，如表面张力、粘度、pH值和时间稳定性。基于PVOH的油墨是一种中性溶液（pH值为6.7），表面张力为39.3 mN/m，粘度为7.5 cP。该油墨在低剪切速率下表现出假塑性（非牛顿剪切变稀）行为，总体而言，它表现出良好的时间稳定性。研究了油墨在不同基材上的润湿性，在这种特定情况下，玻璃被确定为最合适的基材。使用一台专利3D喷墨打印机制造聚合物多层结构。通过光学显微镜对喷墨打印多层结构的形态、表面轮廓和厚度均匀性进行了评估。
