Preparation of phosphorus-doped chitosan derivative and its applications in polylactic acid : Crystallization, flame retardancy, anti-dripping and mechanical properties

Copyright © 2024 Elsevier B.V. All rights reserved..

The topic of biobased flame-retardant PLA has always been of great interest. In our study, we successfully synthesized a phosphorus-containing chitosan derivative (PCS) and combined it with aluminum hypophosphate (AP) to create an effective flame-retardant PLA system. PCS acted as an enhancer, enhancing the thermal performance, crystallinity, and toughness of PLA/AP. Compared to PLA modified with 12 wt% AP achieving UL-94 V-2 level and 24.3 % of limited oxygen index, PLA containing 3 wt% PCS and 9 wt% AP achieved UL-94 V-0 level and limited oxygen index of 28 %. The system testing studies such as CCT, Raman, XPS, and TG-IR results indicated that PLA/AP/PCS exhibited a dual flame-retardant mechanism of condensed and gas phases.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:265

Enthalten in:

International journal of biological macromolecules - 265(2024), Pt 1 vom: 20. Apr., Seite 130648

Sprache:

Englisch

Beteiligte Personen:

Liu, Liyan [VerfasserIn]
Wang, Yadong [VerfasserIn]
Cheng, Chunzu [VerfasserIn]
Lyu, Shisheng [VerfasserIn]
Zhu, Zongmin [VerfasserIn]

Links:

Volltext

Themen:

27YLU75U4W
459TN2L5F5
9012-76-4
Chitosan
Flame Retardants
Flame retardancy
Journal Article
Mechanical properties
Oxygen
Phosphorus
Poly(lactide)
Polyesters
Polylactic acid
S88TT14065

Anmerkungen:

Date Completed 17.04.2024

Date Revised 17.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ijbiomac.2024.130648

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369503678