1、2.Good morning / afternoon, dear professors. I am danshen 2.Good morning / afternoon, dear professors. I am danshen . (Nice meet you。)。I am glad to be here for this interview .May I myselfI am danshen,23 years old .I am from Xuzhou and now I am a student of Jiangsu university. Throughout one years s

2、tudy, I have trying to get an opportunity to get enrolled by Sichuan university .Now amexcitedandnervousMy majoy is polymer science and engineering .In the past over years, Im trying to learn professional knowledge and actively in community activities. Besides ,I carry on some academic reach too lea

3、rnedthewaytobeagoodmanandaexcellentstudentWell, In my spare time,I like to play basketball. Honestly, I am not good play, but I am improving my skills and not afraid any opponent. teaches me a lot of Philosophy of life, such as never giving up and Thatisall!ThanksforyouracademicThe reach ofbuildingt

4、hepatternacademicThe reach ofbuildingthepatternoflow-carbonandgreenlaboratory,itscentralideal is to build a lab resource sharing platform.StudentsPracticeInnovationMymainworkistheabrasionpropertyofpolyimidemodifiedbygrephereoxide. I have two papers accepted.Preparationandpropertiesofhigh-temperature

5、frictionGOpolyimidecompositesManner by solution blending the chemical modification of graphene oxide reinforced polyimide nanocomposites. Under dry friction condition, the amount of addition of the graphene oxide, theload is applied to thefriction slidingspeeds of graphene oxide (GO)nanosheetsand-am

6、inopropyltriethoxysilane-modifiedgraphiteoxide(GO-Si) nanosheets enhance the impact of the tribological properties of composite materials. The results show that the GO-Si PI composites reinforced friction and anti-wear performancewassignificantlybetterthanGOreinforcedpolyimidecomposites.When the app

7、lied load and sliding velocity were 1.47N and 0.0733ms-1 時, GO-Si PI composites filled with the best anti-friction and anti-wear properties. In addition, the scanning electron microscope (SEM) observations morphology displayed, GO-Si dispersed uniformly in the matrix PI, but there is a strong intera

8、ction between the GO-Si and PI polymer matrix composites worn surface smoother. Thermal gravimetric analysis results showed that, GO-Si effectively improve the thermal stability of the PI composites.Keywords:Polyimide;grapheneoxide;frictionandwear;heatResearchpolyimide/graphenenanocompositefilminsea

9、waterthetribologicalpropertiesunderlubricationSummary4,4 - diaminodiphenyl ether (ODA), graphene oxide (GO) and pyromellitic dianhydride (PMDA) was prepared from the polyimide / graphene (PI by in situ polymerizationmethod/GO)nanocompositefilms.Underdryfrictionandlubrication conditionsseawaterinvest

10、igatedPI/GOnanocompositefilmstribologicalproperties. The results show that under conditions of dry friction , friction coefficient and wear rate of the composite films with increasing graphene content is increased. In seawater lubrication , the friction coefficient and wear rate increases with the c

11、omposite film is reduced graphene content and presents a more excellent anti-friction properties. In addition, the scanning electron microscope (SEM) observations displayed , GO dispersed in the PI matrix. The tensile tests showed , GO added to improve the tensile properties of the composite film. T

12、hermal gravimetric analysis results showed that , GO effectively improve the thermal stability of the PI composites. It can be seen , PI / GO nanocomposite thin films have potential applications in the marine development.Keywords : Polyimide / graphene nanocomposite films ; seawater lubricated ; fri

13、ction coefficient ; wear rate ;displayed , GO dispersed in the PI matrix. The tensile tests showed , GO added to improve the tensile properties of the composite film. Thermal gravimetric analysis results showed that , GO effectively improve the thermal stability of the PI composites. It can be seen

14、, PI / GO nanocomposite thin films have potential applications in the marine development.Keywords : Polyimide / graphene nanocomposite films ; seawater lubricated ; friction coefficient ; wear rate ;Nanocomposites of poly (vinylidene fluoride) (PVDF) filled with superficial hydroxylatedleadlanthanum

15、zirconatetitanate(h-PLZT)nanoparticleswereprepared by the solution-mixing method. The h-PLZT nanoparticles were prepared from crude lead lanthanum zirconate titanate (c-PLZT) in aqueous solution of H2O2. The microstructure and phase structure were shown through the methods of scanning electron micro

16、scope (SEM), fourier transform infrared spectroscopy (FTIR) andX-ray diffraction (XRD). The influences of different volume ratios on the dielectric andpiezoelectricpropertiesofthemodifiedPLZT/PVDFcompositeswereanalyzed by impedance analyzer. This research shows that the dielectric loss of theh-PLZT/

17、PVDF nanocomposites is higher than that of the c-PLZT/PVDF nanocomposites. Furthermore, the addition of the PLZT nanoparticles causes the increase of the dielectric permittivity. Finally, compared with c-PLZT/PVDF nanocomposites,h-PLZT/PVDFnanocompositeshaveahigherdielectricconstantand frequency dep

18、endence when the volume ratio of modified PLZT/PVDF is 0.4. It suggests that strong intermolecular force between h-PLZT fillers and PVDF matrix is the main reason accounting for the improvement of dielectric properties.Keywords: Poly(vinylidene fluoride); Lead lanthanum zirconate titanate; Dielectri

19、c InternationnalCongressonAdvancedNano-materials, polymeric materials, energy materials, composite materials, bio-materials, green materials, optical materials, superconductors and magnetic materials, structures and building materialsContributionto the sustainable development of advanced materials f

20、orenergyuse and environmental aspectsStudentspracticalStudentspracticalinnovationtrainingproject knotAdvancesinresponsetolightstimulationofmacromolecularSummary of stimuli-responsive macromolecular chemistry is one of the hot spots in thefield,whilethelightstimulusresponsecyclodextrinandazocompounds

21、reversible supramolecular systems are active in the field in recent years developed based on supramolecular chemistry. Cyclodextrin-based azo compound lock - key inclusion complexes, is purely an inter-molecular force of the non-covalent, supramolecular interaction using this macromolecular network

22、system can be constructed. And cyclodextrin molecule selective inclusion, adjustable resistance and other advantages, the association system has become a hot research macromolecular assembly, and a cyclodextrin compound and azo compounds with excellent optical properties. This article describes the

23、background of cyclodextrin and azo compounds photosensitive type catalytic molecules self-assemble in the field of materials and intelligent design, review of its research system in response to light stimulation supramolecular reversible progress, and finally the prospect of its prospects and develo

24、pment.Keywordslightstimuli-responsivehydrogelcyclodextrinazoExcuseme.Icantquitefollowyou.WouldyoupleasesayitExcuseme,couldyoupleaserepeatwhatyouhavejustWouldyoumindrepeatingyourI begyour CouldIunderstandyourquestionlikeIthinkyouwereaskingme aboutAmI Its something like ItsakindofthingtoAsyou Itgoeswithoutsaying You knowWell