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2篇 您的检索式:作者名="Wentian Yi"
    题名 作者 年代 出处 被引量
1Recyclable Polyurea-Urethane Thermosets with De-Crosslinking Capability in Acetic Acid显示文摘Covalent crosslinking points within thermosets generally result in excellent mechanical properties and solvent resistance yet lead to limited degradability and recyclability.Those thermosets become degradable or recyclable if crosslinking points are cleavable or reversible.Following this principle,we report a kind of polyurea-urethane thermoset with borate ester as its crosslinking point to enable a controllable decrosslinking in response to acetate acid.Such a thermoset presents remarkable mechanical properties as well as outstanding solvent resistance capability,due to the high crosslinking density and intermolecular hydrogen bonding.Furthermore,the de-crosslinked product can be reporcessed to generate a brand new thermoplastic material.Xinglei Tao Wentian Yi Xiao-Qi Xu Yapei Wang 2023Chinese Journal of Polymer Science2023,41,6:0
2Highly Sensitive and Portable Gas Sensing System Based on Reduced Graphene Oxide显示文摘Graphene has been widely used in gas-sensing applications due to its large specific surface area and strong adsorption ability. Among different forms of graphene used as gas-sensing materials, reduced graphene oxide is one of the most convenient and economical materials to integrate with Si-based electronics, which is very important to graphene-based gas sensors. In addition, the stacking structure of graphene oxide flakes facilitates absorption and detection of gas molecules. Based on reduced graphene oxide, a highly sensitive and portable gas-sensing system was demonstrated here. Solution-based graphene oxide was cast on a chip like a TF memory card and then reduced thermally. A signal acquisition system was designed to monitor resistance variation as a sign of gas concentration. This miniature graphene-based gas sensor array demonstrates a new path for the use of graphene in gas-detection technologies. And the creation of a sensitive and portable graphene gas sensor also shows great potential in fields such as medicine and environmental science.Wentian Mi Shih-Wen Chiu Tao Xue Yuanquan Chen Hanyu Qi Yi Yang Kea-Tiong Tang Tian-Ling Ren 2016Tsinghua Science and Technology2016,21,4:0
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