使用原子力显微镜(AFM) 型号 MFP3D-SA 对不同浓度的 PLA 涂层进行表面分析,对沉积在 SS 板上的每个浓度进行三次测量。使用傅里叶变换红外光谱 (FT-IR) 和 Perking Elmer FT-IR/FIR 光谱仪 Model Spectrum400 研究涂层支架的化学结构。在室温条件 (21℃) 下,每个样品在 4000–400 cm^(−1) 之间扫描 1...
An FTIR spectrum of PGS/PLA-PRP confirmed the presence of N–H from PRP (protein) in the 3500 cm−1 area38. Figure 1 FTIR spectra of PGS, PLA, electrospun PGS/PLA, and PGS/PLA-PRP scaffolds. Full size image Microstructure and morphology The surface morphologies of PGS/PLA and PGS/...
1b presents the FTIR spectrum of pristine PLA before and after 28 days of exposure to simulated physiological conditions. The observed alterations in peak intensity and position elucidate the evolving molecular structure of PLA due to degradation processes, providing valuable insights into the material'...
During solvent treatment, the change in water contact angle and FTIR spectrum of PLLA is well correlated.doi:10.1016/j.apsusc.2006.05.047Thanki Paragkumar NDellacherie EdithJean-Luc SixesApplied Surface ScienceTHANKI P.N., DELLACHERIE E., SIX J.L., Surface charac- teristics of PLA and PLGA...
between the different units in the chain. PVB have been found to form miscible blends with other polymers such as PVC (Nadia and Magdy 1999) and PHB. In this paper we report the miscibility study of PLA/PVB blends prepared by solution casting method and characterized using DSC, FTIR ...
PAA对PLA流变性能和热性能的影响_兰小蓉 (1)
The results of FTIR research show that biocarbon reinforcement improves bonding between the filler and the PLA matrix. The increasing peak intensity (2846.6 to 2916.37 cm⁻1) indicates C–H stretching, while new bands at 1600 cm⁻1 indicate C=C bonds at greater biocarbon percentages [46, 50...
(PLA-b-PEP-OH) was also characterizedby 31PNMRand the corresponding spectrumwas shownin Figure 3.The signal at-0.22 ppm indicates that phosphate unitsare introduced into the copolymer successfully and also verifies thechemical structure of H40-star-(PLA-b-PEP-OH).FTIR analyses provide ...
As determined by FTIR analysis, the addition of Ag NPs to polyphenolic compounds caused a reduction in peak intensity and a shift in the vibrational band positions. XRD analysis, in conjunction with other analyses, confirmed the presence of sharp crystalline peaks, a signature of face-centered ...
Backward Interval PLS (BiPLS) was also explored to automate the process of selecting the most relevant NIR spectral regions for prediction of the final product properties for comparison with the manual selection process. For BiPLS, the number of intervals to divide the spectrum into is a tuning ...