The degradation behaviors of an amorphous and a semicrystalline PLA (i.e., aPLA and cPLA) with similar molecular weights are compared at elevated temperatures and after being treated under...

Download scientific diagram | FTIR spectra of a aPLA and b cPLA treated in tap and sea water at various temperatures and periods from publication: Thermal and Environmentally Induced …

2024年8月1日 · FTIR spectroscopy is a universal and widely used spectral methodology based on atoms vibration and rotation [2].

PLLA has –OH and –COOH groups at its two ends. The 1 H-NMR spectrum of PLLA is shown in Figure 1. The resonance signal at 1.3-1.6 (d, 3H, CH 3 ) is assigned to methyl protons (-CH 3 ) …

2019年10月4日 · Polylactic acid (PLA) is a biodegradable thermoplastic polymer that is presented as a good alternative to petroleum-derived plastics. Some of the major drawbacks of this …

Agilent provides the complete solution for chemical imaging — the Cary 620 FTIR for micro–imaging and the Large Sample accessory (LS) for macro–imaging.

ALPHA II • The new benchmark for compact FTIR spectrometers Innovation with Integrity. One Touch - Many Applications Guided Workflow It takes only three touches for measurement, …

APLA, polyactic, acids are found in many commercial packaging products for consumer use. These acids are created by bacteria naturally occurring in nature and can be used to help …

We are proud to say that the ALPHA II is the most robust and reliable compact IR spectrometer available. Its RockSolid TM interferometer is wear-free and resistant to shocks and vibrations. …

FTIR spectra of the HAp/PLA composite, with molar ratios: a=PLA, b= HAp, c = 70/30, d =60/40 and e=50/50. This study focuses on the development of a composite based on polylactic acid …