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Fabricating of poly(vinyl alcohol)/halloysite nanotubes/gelatin composite sponges with enhanced mechanical properties and rapid water absorption speed
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2023-11-27 , DOI: 10.1002/pen.26573 Wentao Wu 1 , Tianxiang Chen 1 , Wenliang Feng 1 , Tengfei Lin 1 , Min Gao 1 , Chunlin Zhao 1 , Xiao Wu 1 , Cong Lin 1 , Weihang Wu 2 , Yu Wang 2
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2023-11-27 , DOI: 10.1002/pen.26573 Wentao Wu 1 , Tianxiang Chen 1 , Wenliang Feng 1 , Tengfei Lin 1 , Min Gao 1 , Chunlin Zhao 1 , Xiao Wu 1 , Cong Lin 1 , Weihang Wu 2 , Yu Wang 2
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In the biomedical field, polyvinyl alcohol (PVA) sponge has been widely used. In particular, it is considered a potential implant material for repairing soft tissues. However, its insufficient water absorption and mechanical properties limit its application. In this work, a novel PVA/halloysite nanotubes (HNTs)/gelatin ternary composite sponge was prepared by water solution mixing and casting techniques. HNTs and gelatin/PVA solution were mixed at different weight ratios. The structure of the ternary composite sponges was characterized by using scanning electron microscopy. The physical properties of the ternary composite sponges were characterized. The maximum water absorption reached 1783.5% with a rapid water absorption speed at a weight ratio of HNTs/gelatin of 1:8. Owing to its interconnected macroporous structure and good interfacial interaction, its highest compression strength and tensile strength reached 8.22, 1.51 MPa, respectively. In addition, its thermal stability was enhanced as well, which demonstrated that the prepared composite sponge had better performance than the pure PVA sponge by constructing a ternary system. Therefore, the results suggest that the PVA/HNTs/gelatin ternary composite sponge shows a wider application value as a potential material for repairing soft tissue.
中文翻译：
机械性能增强、吸水速度快的聚乙烯醇/埃洛石纳米管/明胶复合海绵的制备
在生物医学领域，聚乙烯醇（PVA）海绵得到了广泛的应用。特别是，它被认为是修复软组织的潜在植入材料。但其吸水率和机械性能不足限制了其应用。在这项工作中，通过水溶液混合和浇铸技术制备了一种新型PVA/埃洛石纳米管（HNTs）/明胶三元复合海绵。 HNT 和明胶/PVA 溶液以不同的重量比混合。利用扫描电子显微镜对三元复合海绵的结构进行了表征。对三元复合海绵的物理性能进行了表征。当HNTs/明胶重量比为1:8时,最大吸水率达到1783.5%,吸水速度较快。由于其互连的大孔结构和良好的界面相互作用，其最高压缩强度和拉伸强度分别达到8.22、1.51 MPa。此外，其热稳定性也得到增强，这表明通过构建三元体系制备的复合海绵比纯PVA海绵具有更好的性能。因此，结果表明PVA/HNTs/明胶三元复合海绵作为潜在的软组织修复材料显示出更广泛的应用价值。
更新日期：2023-11-27
中文翻译：
机械性能增强、吸水速度快的聚乙烯醇/埃洛石纳米管/明胶复合海绵的制备
在生物医学领域，聚乙烯醇（PVA）海绵得到了广泛的应用。特别是，它被认为是修复软组织的潜在植入材料。但其吸水率和机械性能不足限制了其应用。在这项工作中，通过水溶液混合和浇铸技术制备了一种新型PVA/埃洛石纳米管（HNTs）/明胶三元复合海绵。 HNT 和明胶/PVA 溶液以不同的重量比混合。利用扫描电子显微镜对三元复合海绵的结构进行了表征。对三元复合海绵的物理性能进行了表征。当HNTs/明胶重量比为1:8时,最大吸水率达到1783.5%,吸水速度较快。由于其互连的大孔结构和良好的界面相互作用，其最高压缩强度和拉伸强度分别达到8.22、1.51 MPa。此外，其热稳定性也得到增强，这表明通过构建三元体系制备的复合海绵比纯PVA海绵具有更好的性能。因此，结果表明PVA/HNTs/明胶三元复合海绵作为潜在的软组织修复材料显示出更广泛的应用价值。
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