通过蒸发诱导交联和随后的各向异性膨胀制备自愈粘土-聚合物复合水凝胶

IF 5.3 2区地球科学 Q2 CHEMISTRY, PHYSICAL

Applied Clay Science Pub Date : 2025-04-19 DOI:10.1016/j.clay.2025.107815

Siriluck (Puey) Thongsamakphan , Lisa Goulvestre , Ploypailin (Milin) Saengdet , Makoto Ogawa

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引用次数: 0

摘要

由于蒙脱石的分散性和聚乙烯醇（PVA）的溶解度以及两种组分的生物相容性，蒙脱石-聚乙烯醇复合材料已被研究用于各种应用。通过在室温下对各组分的水相混合物进行干燥，得到了一种合成的硅藻土(Sumecton SWF)-聚乙烯醇片材。聚乙烯醇在溶剂蒸发过程中发生交联（蒸发诱导交联）。将薄片浸入水中，得到水凝胶薄片。利用现有水凝胶独特的各向异性膨胀特性，实现了水凝胶受水诱导的自愈。愈合在35秒内完成。采用新型交联方法制备的SWF-PVA水凝胶复合材料具有各向异性膨胀和水诱导自愈的特性。

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Self-healing clay-polymer composite hydrogel obtained by evaporation induced cross-linking and subsequent anisotropic swelling

Thanks to the dispersibility of smectite and solubility of poly(vinyl alcohol) (PVA) as well as the biocompatibility of both components, smectite-PVA composites have been examined for various applications. A synthetic hectorite (Sumecton SWF)-PVA sheet was obtained by a drying of an aqueous mixture of the components at room temperature. Cross-linking of PVA was achieved during the evaporation of solvent (evaporation-induced cross-linking). The sheet was immersed in water to obtain a hydrogel sheet. Based on the unique anisotropic swelling of the present hydrogel, the self-healing induced by water of the hydrogel was achieved. The healing was done within 3 s. The SWF-PVA hydrogel composite, prepared by using the novel cross-linking method, exhibited anisotropic swelling and water-induced self-healing.

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来源期刊

Applied Clay Science 地学-矿物学

CiteScore

10.30

自引率

10.70%

发文量

289

审稿时长

39 days

期刊介绍： Applied Clay Science aims to be an international journal attracting high quality scientific papers on clays and clay minerals, including research papers, reviews, and technical notes. The journal covers typical subjects of Fundamental and Applied Clay Science such as: • Synthesis and purification • Structural, crystallographic and mineralogical properties of clays and clay minerals • Thermal properties of clays and clay minerals • Physico-chemical properties including i) surface and interface properties; ii) thermodynamic properties; iii) mechanical properties • Interaction with water, with polar and apolar molecules • Colloidal properties and rheology • Adsorption, Intercalation, Ionic exchange • Genesis and deposits of clay minerals • Geology and geochemistry of clays • Modification of clays and clay minerals properties by thermal and physical treatments • Modification by chemical treatments with organic and inorganic molecules(organoclays, pillared clays) • Modification by biological microorganisms. etc...