How can you identify LDPE from FTIR?
This page summarizes the recurring FTIR evidence reported for LDPE, including the most frequent peaks, supporting functional groups, and literature-backed interpretation patterns. It is a structured evidence page, not a claim of automatic single-spectrum certainty.
Backed by 17 cited sources
Réponse rapide
LDPE is usually reported with a recurring pattern of peaks and functional-group evidence. The most useful approach is to cross-check at least two characteristic peaks before treating it as a match, then verify whether the full spectrum still fits the same material family.
Interprétation des pics
Matériaux / groupes possibles
| Groupe fonctionnel | Preuves |
|---|---|
| Alkyl C-H | 30 |
| Methacrylate | 11 |
| Acetate | 11 |
| Methoxy (OCH3) | 9 |
| Carbonyl (C=O) | 8 |
| C-O single bond | 6 |
| Hydroxyl (O-H) | 6 |
| Aromatic ring | 6 |
Logique du spectre
The logic here is evidence aggregation: repeated literature mentions of LDPE, repeated peak positions, and repeated functional-group associations. A strong material hypothesis should still be supported by multiple peaks that agree with each other, not by one headline band alone.
Utilisation réelle
Cette page est conçue pour l＇identification des polymères, le contrôle qualité des matériaux entrants, l＇analyse des plastiques inconnus, l＇examen du contenu recyclé et l＇interprétation des spectres de référence appuyée par la littérature.
Erreurs courantes
- Déclarer une correspondance de matériau trop tôt parce qu＇un pic célèbre est présent.
- Ignorer la préparation d＇échantillon, les charges, l＇oxydation, l＇eau ou les additifs qui peuvent modifier le motif apparent.
- Utiliser des preuves de la littérature sans vérifier si votre propre mode d＇échantillonnage et la qualité du spectre sont comparables.
Conseil de vérification
Utilisez DSC, GC-MS ou TGA pour valider l＇hypothèse du matériau lorsque le motif de pics est ambigu ou mélangé.
Littérature derrière cette page
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confiance 1,0
LDPE
Biodegradation of Unpretreated Low-Density Polyethylene (LDPE) by Stenotrophomonas sp. and Achromobacter sp., Isolated From Waste Dumpsite and Drilling Fluid DOI: 10.3389/fmicb.2020.603210 -
confiance 1,0
LDPE
Biodegradability of polyethylene by bacteria and fungi from Dandora dumpsite Nairobi-Kenya DOI: 10.1371/journal.pone.0198446 -
confiance 0,9
LDPE
Isolation and Characterization of Brucella spp., Low-Density Polyethylene (LDPE) Plastic Degrading Bacteria in Al-Ahsa Region, Saudi Arabia DOI: 10.3390/app13074629 -
confiance 0,9
LDPE
Bioactivity, cytocompatibility and thermal properties of experimental Bioglass-reinforced composites as potential root-canal filling materials DOI: 10.1016/j.jmbbm.2017.01.022 -
confiance 0,9
LDPE
Gajendiran 等 - 2016 - Microbial degradation of low-density polyethylene DOI: 10.1007/s13205-016-0394-x -
confiance 0,9
LDPE
Screening the Efficacy of a Microbial Consortium of Bacteria and Fungi Isolated from Different Environmental Samples for the Degradation of LDPE/TPS Films DOI: 10.3390/separations10020079 -
confiance 0,9
LDPE
Okada 等 - 2015 - Lifetime Prediction for LDPE Moldings with Acceler DOI: 10.1295/koron.2014-0072 -
confiance 0,9
LDPE
Passos 等 - 2015 - DOI: 10.1590/0104-1428.1432 -
confiance 0,9
LDPE
Perera 等 - 2021 - Decaying Hardwood Associated Fungi Showing Signatu DOI: 10.1007/s13205-017-0699-4. -
confiance 0,8
LDPE
Gong 等 - 2023 - Biodegradation of Low Density Polyethylene by the DOI: 10.3390/jof9060605
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