18DevelopmentofsmartmaterialsystemsFabrication of highly sensitive flexible sensorsFerroelectricpolymerAmplifiercircuitPressure sensorRobotskinContent：ContentCompositematerialsbasedonpolymerstypifiedbyplasticsare Composite materials based on polymers typified by plastics lighterthanmetallicmaterialsandceramicsmaterials,andareare lighter than metallic materials and ceramics materials, and strongerthanpolymermaterials.Thosematerialsareusedforare stronger than polymer materials. Those materials are used mechanicalmembersusedinaircrafts,automobiles,householdelectricalappliances,OAequipment,etc.for mechanical members used in aircrafts, automobiles, Ourlaboratoryaimstomakethismaterialhighlyfunctionalfromthehousehold electrical appliances, OA equipment, etc.threeviewpointsof"material,structure,processing". Our laboratory aims to make this material highly functional Theadvancedfunctioningmethodsexaminedareasfollows.from the three viewpoints of “material, structure, processing”. The advanced functioning methods examined are as follows.(1)Micro/Nanocomposites(2)Reactiveprocessing(1) Micro/Nano composites(3)Mechanicalpropertiesimprovementbyadditive(2) Reactive processing(4)Polymerblends(3) Mechanical properties improvement by additive(5)Mixinglongfiberandshortfiber(4) Polymer blends(5) Mixing long fiber and short fiber Appealing point：Ourlaboratoryhaveconstructedseveraluniquemechanicalmodelsforevaluatetheinterfacialinteractionforce,elasticmodulusand Our laboratory have constructed several unique mechanical fracturetoughnessofpolymer.models for evaluate the interfacial interaction force, elastic Yamagata UniversityGraduate School of Science and Engineering modulus and fracture toughness of polymer.Research Interest ：Materials engineeringOrganic electronicsYamagata University Graduate School of Science and Engineering E-mail ：：t-taka@yz.yamagata-u.ac.jpTel ：+81-238-26-3085Research InterestFax ：+81-238-26-3085Materials engineeringE-mail ・ t-taka@yz.yamagata-u.ac.jpTel ・ +81-238-26-3085HP ：http://composite.yz.yamagata-u.ac.jp/index.htmlFax ・ +81-238-26-3085HP・http://composite.yz.yamagata-u.ac.jp/index.htmlContentContent：Theresearchofourgroupaddressdevelopmentofsmartmaterial The research of our group address development of smart systemswithfunctionalizedpolymersandsemiconductingmaterials.material systems with functionalized polymers and Oneofourresearchfieldisfabricationoforganicthin-filmelectricsemiconducting materials. One of our research field is devicessuchphysicalsensors,actuators,andtransistors.Thekeyfabrication of organic thin-film electric devices such physical technologiesfortheresearcharetheuseofsystematicferroelectricsensors, actuators, and transistors. The key technologies for the research are the use of systematic ferroelectric polymers polymerswithfunctionalcarbonmaterialsandsolutionprocesseswith functional carbon materials and solution processes such suchprintingmethods.Inrecentyears,anewapproachutilizingtheprinting methods. In recent years, a new approach utilizing the conceptofthin-filmandflexiblesensorsforanartificialskinhasconcept of thin-film and flexible sensors for an artificial skin beenproposedwheresmartmaterialsarefabricatedonaplastichas been proposed where smart materials are fabricated on a substrateadaptabletowearablesensors.Thisconcepthasadvantagesplastic substrate adaptable to wearable sensors. This concept ashighpressuresensitivityandfastresponsetimecomparedwithhas advantages as high pressure sensitivity and fast response previous.Otherapplicationsforhumaninteractionsuchastime compared with previous. Other applications for human biomimetic electronics and robot skins are also our research interest. interaction such as biomimetic electronics and robot skins are Appealing point：also our research interest. ・Promotion of the research collaborationSpecial objectives・Development of functionalized devices with smart materials・Promotion of the research collaboration・Development of functionalized devices with smart materialsYamagata UniversityGraduate School of Science and Engineering Research Interest ：Material science, Yamagata University Graduate School of Science and Engineering Research InterestE-mail ：tomohito@yz.yamagata-u.ac.jpMaterial science, Organic electronicsTel ：+81-238-26-3387E-mail ・ tomohito@yz.yamagata-u.ac.jpFax：+81-238-26-3788Tel ・ +81-238-26-3387HP: https://tokitolabo.yz.yamagata-u.ac.jpFax ・ +81-238-26-3788HP・https://tokitolabo.yz.yamagata-u.ac.jpSpecial objectivesDevelopment of Smart Material Systems for Organic Thin-Film Devices Optimization of mechanical properties of polymer compositesAssistant Professor Tetsuo TakayamaAssistant Professor Tetsuo TakayamaDevelopment of Smart Material Systems for Organic Thin-Film Devices Assistant Professor Tomohito SekineAssistant Professor Tomohito SekineOptimization of mechanical properties of polymer compositesFig.1Research area.Fig.2Examples of results.
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