Jan 1, 2022 · Polyvinyl alcohol (PVA) is a popular material due to its water solubility and tunable mechanical properties. However, because of its low yield stress in an aqueous solution, PVA is not directly printable using direct ink writing (DIW) 3D printing.

Feb 14, 2024 · Our study suggested the feasibility of 3D-printed PVA-Hy using the mixture of salt and alkali hydroxide, demonstrating a unique concept of embedded 3D printing enabled by ATPS for temporary stabilization of the printed structures to facilitate 3D fabrication.

To address this challenge, this paper demonstrates the fabrication of tailored hydrogel structures by using the direct ink writing (DIW) of hybrid hydrogel inks (polyvinyl alcohol (PVA) and κ-carrageenan) with outstanding rheology.

Jul 6, 2023 · We present a simple strategy with which to prepare 3D printable and tough ionogels that can be adjusted to any topography. The ink for 3D printing is a dispersion of cellulose nanocrystals (CNCs)...

Jul 19, 2023 · 聚乙烯醇(PVA)是 IJP 与 DIW 技术中较为典型的水基粘结剂,其水溶液具有良好的润湿性及粘结性,在传统陶瓷的制备方式和 3D 打印技术中均有应用,如 Maleksaeedi 等 [49] 以 PVA 为粘结剂应用于 IJP 陶瓷技术中,得到固含量体积分数为 30% 的浆料。

Jan 1, 2020 · Direct ink writing (DIW) was proposed as a novel additive manufacturing technology enabling rapid fabrication of geometrically complicated 3D shapes with high resolution and excellent control of geometry architecture and dimension with almost no waste of value materials.

Nov 30, 2022 · In this paper, we adopt direct inkjet printing (DIW) technology to fabricate three-dimensional structures of chemically and physically cross-linked hydrogels by integrating fumed silica as a rheological modifier into crosslinked poly …

Jan 29, 2025 · Direct ink writing (DIW) is an additive manufacturing technique that has garnered notable interest due to its precise and consistent printing of a wide range of materials, such as viscoelastic hydrogels, pastes, and complex composites, by adjusting the ink's rheology.

11月， 兰州化学物理研究所王晓龙/周峰研究员 通过构建基于 聚乙烯醇 （PVA）和 壳聚糖 （CS）的交联 DPC网络，可以实现超高强度水凝胶的3D打印。 首先，采用具有适度流变特性的直接混合墨水来制造复杂的水凝胶结构。 然后，通过循环冻融，柠檬酸钠溶液浸泡，实现了PVA结晶的第一个网络和氨基与羧基之间CS离子相互作用的第二个网络。 优化的DPC水凝胶在302.27±15.70％应变下的拉伸强度为12.71±1.32 MPa，杨氏模量为14.01±1.35 MPa，并且由 …

Direct Ink Writing (DIW) has proven to be particularly valuable for efficiently and affordably producing ceramic components with complex geometries. This study investigates how printing parameters impact the effectiveness of Al 2 O 3 refractory product fabrication via DIW.