The preparation of a bio-polyelectrolytes ...
Document type :
Article dans une revue scientifique: Article original
Permalink :
Title :
The preparation of a bio-polyelectrolytes based core-shell structure and its application in flame retardant polylactic acid composites
Author(s) :
Jin, Xiaodong [Auteur]
Cui, Suping [Auteur]
Sun, Shibing [Auteur]
Gu, Xiaoyu [Auteur]
Li, Hongfei [Auteur]
Liu, Xiaodong [Auteur]
Tang, Wufei [Auteur]
Sun, Jun [Auteur]
Bourbigot, Serge [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Zhang, Sheng [Auteur]
Cui, Suping [Auteur]
Sun, Shibing [Auteur]
Gu, Xiaoyu [Auteur]
Li, Hongfei [Auteur]
Liu, Xiaodong [Auteur]
Tang, Wufei [Auteur]
Sun, Jun [Auteur]
Bourbigot, Serge [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Zhang, Sheng [Auteur]
Journal title :
Composites Part A: Applied Science and Manufacturing
Abbreviated title :
Composites Part A: Applied Science and Manufacturing
Pages :
105485
Publisher :
Elsevier BV
Publication date :
2019-09
ISSN :
1359-835X
HAL domain(s) :
Chimie/Polymères
Chimie/Matériaux
Chimie/Matériaux
English abstract : [en]
A bio-polyelectrolyte (PC) was synthesized by reacting phytic acid (PA) with casein (CS), and used as the shell materials to microencapsulate ammonium polyphosphate (APP). The obtained core-shell structured flame retardant ...
Show more >A bio-polyelectrolyte (PC) was synthesized by reacting phytic acid (PA) with casein (CS), and used as the shell materials to microencapsulate ammonium polyphosphate (APP). The obtained core-shell structured flame retardant (PC@APP) was incorporated into polylactic acid (PLA). The dispersion of PC@APP was greatly improved. As a result, the elongation at break and notched impact strength were improved from 6.9% and 3.5 KJ/m2 of neat PLA sample to 14.4% and 4.7 KJ/m2 of PLA samples containing 5%PC@APP. Moreover, the fire resistance of PLA/5%PC@APP composites was also enhanced. The limiting oxygen index (LOI) value was increased from 19.6% to 28.3%; the vertical burning (UL-94) rating was upgraded from no rating to V-0; and the peak heat release rate value was decreased from 935.8 kW/m2 to 747.9 kW/m2. It is suggested that the well-dispersed PC@APP alters the degradation routine of PLA matrix, leading to the rapid formation of physical barriers.Show less >
Show more >A bio-polyelectrolyte (PC) was synthesized by reacting phytic acid (PA) with casein (CS), and used as the shell materials to microencapsulate ammonium polyphosphate (APP). The obtained core-shell structured flame retardant (PC@APP) was incorporated into polylactic acid (PLA). The dispersion of PC@APP was greatly improved. As a result, the elongation at break and notched impact strength were improved from 6.9% and 3.5 KJ/m2 of neat PLA sample to 14.4% and 4.7 KJ/m2 of PLA samples containing 5%PC@APP. Moreover, the fire resistance of PLA/5%PC@APP composites was also enhanced. The limiting oxygen index (LOI) value was increased from 19.6% to 28.3%; the vertical burning (UL-94) rating was upgraded from no rating to V-0; and the peak heat release rate value was decreased from 935.8 kW/m2 to 747.9 kW/m2. It is suggested that the well-dispersed PC@APP alters the degradation routine of PLA matrix, leading to the rapid formation of physical barriers.Show less >
Language :
Anglais
Audience :
Non spécifiée
Collections :
Research team(s) :
Ingénierie des Systèmes Polymères
Submission date :
2019-06-24T09:03:45Z
2019-06-28T12:49:00Z
2019-06-28T12:49:00Z