表面分析方法ppt課件(2)-資料下載頁(yè)
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【正文】 ficult to apply LMFFM or VEAFM) Topography（７μｍ） PM image（７μｍ） Material Characterization DFM／ PM （Phase mode）measurement Observed image of the heat shrinkage rubber （resin/silicon rubber） → resin silicon rubber 2022/2/12 HNUZLP 55 Structure Function Heating/Cooling ＳＰＭ Structure and Function of Polymer ー Morphology observation with SPM ー ● Observation in the heating process with the air ● Surface and Interface Information ● Observation in the inert gas ● Difficult sample for TEM（Rubber/Rubber blend） 2022/2/12 HNUZLP 56 100 nm 100 nm Topography PM image PP （matrix） EPR Data Lamella structure of Polypropylene Phase（PM：Phase Mode）measurement － Structure and Function of Polymer － ● Lamella structure can be observed clearly with PM mode. ● Domain of Ethylene Propylene Rubber (EPR) is distributed in the Polypropylene (PP) matrix. 2022/2/12 HNUZLP 57 Data Micro Phase Separation Structure of SBS (Phase Mode) Phase（PM：Phase Mode）measurement － Structure and Function of Polymer － 200 nm . 200 nm 90℃ 200 nm . after cooling ● Polystyrene phase (hard segment) and Polybutadiene phase (soft segment) is clearly separated ● The initial data indicates nonequilibrium condition, because it disappears once it is heated. 2022/2/12 HNUZLP 58 Studies of Polymer Surfaces with AFM nanostructure of a microporous isotactic polypropylene membrane height image: surface topography amplitude (error) image: lamellar and fibrillar features 2022/2/12 HNUZLP 59 Studies of Polymer Surfaces with AFM Teflon resin, deposited on a substrate by rubbing at temperatures of about 200176。 C 2022/2/12 HNUZLP 60 2022/2/12 HNUZLP 61 Tapping Mode AFM time cantilever vibration amplitude setpoint 1 ?t1 free air amplitude setpoint 2 ?t2 ?x ?x ? At setpoint 1, the AFM is operating close to the free vibration amplitude very little energy is dissipated to the sample surface ? At setpoint 2, the AFM is operating further away from Ao. The amplitude builds up more rapidly, but more energy is transferred to the surface. 2022/2/12 HNUZLP 62 All scans are 2μm x 1μm Light Tapping Hard Tapping Height Image Phase Image poly(styrene)bpoly(butadiene)bpoly(styrene) triblock copolymer film Near Surface Structure Stiffer PS blocks Butadienerich topmost layer 2022/2/12 HNUZLP 63 2022/2/12 HNUZLP 64 2022/2/12 HNUZLP 65 Microwear on PEEK by AFM 2022/2/12 HNUZLP 66 Red blood corpuscle DFM mode (8μm x 8 μ m) DNA DFM mode (500nm x 500nm) Imaging of biological samples Living Chromosome DFM mode (16 μ m x 16 μ m
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