Wang Zhan , Jinhong Mo , Fan Shi , Zhiyuan Xu , Le Chen , Lixia Li , Ru Zhou , Mingyi Chen , Junchen Jiang
{"title":"改性明胶增强二氧化硅气凝胶的制备及其热机械性能","authors":"Wang Zhan , Jinhong Mo , Fan Shi , Zhiyuan Xu , Le Chen , Lixia Li , Ru Zhou , Mingyi Chen , Junchen Jiang","doi":"10.1016/j.jnoncrysol.2024.123222","DOIUrl":null,"url":null,"abstract":"<div><p>Due to the poor mechanical properties of SiO<sub>2</sub> aerogels, this study prepared the composite aerogels using the co-gel method with modified gelatin and SiO<sub>2</sub> sol. Gelatin is used as a reinforcing phase to enhance the performance of the composite aerogels. The study investigated the impact of varying concentrations of gelatin (1.7 %, 1.9 %, 2.1 %, 2.3 %) and silane coupling agent (1 %, 1.5 %, 2 %, 2.5 %, 3 %) on the thermal-mechanical properties of the composite aerogels. Various tests were conducted to assess the thermal-mechanical properties of the composite aerogels, including thermal stability, thermal conductivity, compression resistance, and fire-retardant. Additionally, the surface morphology and chemical composition were analyzed using SEM, TEM, FTIR, and XRD to explore the correlation with the thermal-mechanical properties. The results indicated that the composite aerogels exhibited outstanding overall performance with 2.1 % gelatin and 3 % silane coupling agent.</p></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"646 ","pages":"Article 123222"},"PeriodicalIF":3.2000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation and thermo-mechanical properties of modified gelatin reinforced SiO2 aerogels\",\"authors\":\"Wang Zhan , Jinhong Mo , Fan Shi , Zhiyuan Xu , Le Chen , Lixia Li , Ru Zhou , Mingyi Chen , Junchen Jiang\",\"doi\":\"10.1016/j.jnoncrysol.2024.123222\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Due to the poor mechanical properties of SiO<sub>2</sub> aerogels, this study prepared the composite aerogels using the co-gel method with modified gelatin and SiO<sub>2</sub> sol. Gelatin is used as a reinforcing phase to enhance the performance of the composite aerogels. The study investigated the impact of varying concentrations of gelatin (1.7 %, 1.9 %, 2.1 %, 2.3 %) and silane coupling agent (1 %, 1.5 %, 2 %, 2.5 %, 3 %) on the thermal-mechanical properties of the composite aerogels. Various tests were conducted to assess the thermal-mechanical properties of the composite aerogels, including thermal stability, thermal conductivity, compression resistance, and fire-retardant. Additionally, the surface morphology and chemical composition were analyzed using SEM, TEM, FTIR, and XRD to explore the correlation with the thermal-mechanical properties. The results indicated that the composite aerogels exhibited outstanding overall performance with 2.1 % gelatin and 3 % silane coupling agent.</p></div>\",\"PeriodicalId\":16461,\"journal\":{\"name\":\"Journal of Non-crystalline Solids\",\"volume\":\"646 \",\"pages\":\"Article 123222\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-09-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Non-crystalline Solids\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022309324003995\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Non-crystalline Solids","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022309324003995","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Preparation and thermo-mechanical properties of modified gelatin reinforced SiO2 aerogels
Due to the poor mechanical properties of SiO2 aerogels, this study prepared the composite aerogels using the co-gel method with modified gelatin and SiO2 sol. Gelatin is used as a reinforcing phase to enhance the performance of the composite aerogels. The study investigated the impact of varying concentrations of gelatin (1.7 %, 1.9 %, 2.1 %, 2.3 %) and silane coupling agent (1 %, 1.5 %, 2 %, 2.5 %, 3 %) on the thermal-mechanical properties of the composite aerogels. Various tests were conducted to assess the thermal-mechanical properties of the composite aerogels, including thermal stability, thermal conductivity, compression resistance, and fire-retardant. Additionally, the surface morphology and chemical composition were analyzed using SEM, TEM, FTIR, and XRD to explore the correlation with the thermal-mechanical properties. The results indicated that the composite aerogels exhibited outstanding overall performance with 2.1 % gelatin and 3 % silane coupling agent.
期刊介绍：
The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid.
In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.
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