2019年4月20日 · Polyvinyl alcohol (PVA) hydrogels were prepared by a cyclic freezing–thawing technique without any cross-linker agent, using PVA and Maghnite water dispersion with different ratios. The obtained results have shown a higher thermal stability of samples with sodium than with alkylammonium Maghnite.

PVA (polyvinyl alcohol)-ZrP (PVA/ZrP) and Nafion®/PVA-ZrP nanocomposite membranes were synthesised using the recasting method with glutaraldehyde (GA) as a crosslinking agent.

2023年4月11日 · In this study, the differences in the thermal behavior of poly(vinyl alcohol) (PVA) raw powder and physically crosslinked films were investigated using various methods, such as thermogravimetric analysis (TGA) and derivative TGA (DTGA), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction ...

2024年1月23日 · Thermogravimetric Analysis (TGA) serves a pivotal technique for evaluating the thermal behavior of Polyvinyl alcohol (PVA), a polymer extensively utilized in the production of fibers, films, and membranes. This paper targets the kinetics of PVA thermal degradation using high three heating rate range 20, 30, and 40 K min−1.

2022年4月1日 · Poly(vinyl alcohol) (PVA), as a water-soluble and biocompatible synthetic polymer, contains a large number of hydroxyl functional groups, which can be cross-linked to form hydrogels [20]. Benefited from such unique structure, the mechanical properties of PVA can be furtherly improved on the basis of ensuring good biocompatibility.

2012年2月3日 · The thermal decomposition behavior of poly(vinyl alcohol) (PVA) with two different hydroxyl contents, 88 and 99%, was investigated. UV-Vis spectroscopy, thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and TGA-FTIR were …

Polyvinyl alcohol (PVA)-based carbon nanofiber (CNF) sheets are fabricated as an innovative thermal interface material (TIM), which is a potential substitute for traditional TIMs. Five types of...

2011年11月1日 · Differential scanning calorimetery (DSC), thermogravimetric analysis (TGA) and dielectric spectroscopy of all compositions have been investigated. It was found that PVA and CMC are compatible in the studied range of composition. With increasing CMC content, the thermal stability of PVA increases.

In this work, we report the successful synthesis of novel nanocomposite films based on Polyvinyl Alcohol-Polypyrrole-Gold nanocomposite (PVA-PPy-Au NC). The films were synthesized by the...

聚乙烯醇（PVA）水凝胶是通过循环冻融技术制备的，没有任何交联剂，使用不同比例的 PVA 和 Maghnite 水分散体。 所得结果表明，含钠的样品比含烷基铵镁铁矿的样品具有更高的热稳定性。