journal article·2022-07-08

Substrate-Independent, Mechanically Tunable, and Scalable Gelatin Methacryloyl Hydrogel Coating with Drag-Reducing and Anti-Freezing Properties

Luxing Wei, Jun Huang, Yonggan Yan, Jiuyu Cui, Yiming Zhao, Fuxiang Bai, Jing Liu, Xunwei Wu, Xiaolai Zhang, Mengcheng Du

ACS Applied Polymer Materials· Volume 4· Issue 7
Publisher page

Abstract

Hydrogel coatings have aroused tremendous research interest due to their excellent biocompatibility, lubricity, and flexibility. However, most hydrogel coatings are limited by their low mechanical strength and large-scale applications on diverse substrates. Herein, a mechanically tunable gelatin methacryloyl-based hydrogel coating is developed via a scalable ultraviolet-curing strategy combined with post-immersion treatment in a sodium citrate–water–glycerol solution. Notably, the hydrogel coating shows mechanically tunable properties by changing the soaking time or the concentration of sodium citrate. The compression modulus of the hydrogel is enhanced by 15 times after 120 min of soaking in sodium citrate–water–glycerol. Besides, the anti-freezing property endows the hydrogel coating with low-temperature (e.g., −40 °C) flexibility. The hydrogel coating is transparent with a transmittance of over 80% within the visible light region and exhibits long-term stability (over 60 days at 25 °C and 40% relative humidity). Moreover, the obtained hydrogel coating shows good lubrication properties with a friction coefficient of less than 0.01. The fabricated hydrogel coating can be potentially used in engineering applications where mechanically tunable properties, anti-freezing, lubrication, and excellent light transmittance are required.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Hydrogels: synthesis, properties, applications · Electrospun Nanofibers in Biomedical Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, Shandong 25006, China

Key Laboratory of Icing and Anti/De-icing, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China

Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China

Institute of Chemical Defense, State Key Laboratory of NBC Protection for Civilian, Beijing 100191, China

Savaid Stomatology School of Hangzhou Medical College, Ningbo Stomatology Hospital, Ningbo 315010, China

Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China

Shandong Yanggu Huatai Chemical Co., Ltd., Liao Cheng, Shandong, 252300, China

Funding

Key Laboratory of Icing and Anti/De-icing of Aircraft · National Natural Science Foundation of China · Natural Science Foundation of Shandong Province · State Key Laboratory of NBC Protection for Civilian, China · Major Program of Shandong Province · Qilu Talented Young Scholar Program of Shandong University

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