PMID- 32033325
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240328
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 12
IP  - 2
DP  - 2020 Feb 5
TI  - Flame Retardancy of High-Density Polyethylene Composites with P,N-Doped Cellulose 
      Fibrils.
LID - 10.3390/polym12020336 [doi]
LID - 336
AB  - To derive P,N-doped cellulose fibrils, phosphoric acid and aqueous ammonia were 
      placed in a one-pot reaction, and the phosphate groups and ammonium phosphates 
      were successfully introduced into the cellulose surface. The obtained P,N-doped 
      cellulose fibrils with high liberation were thereafter incorporated into a 
      high-density polyethylene (HDPE) matrix to improve the flame retardancy of HDPE 
      composites, and they had a significant improvement on flame retardancy of HDPE 
      composites. In particular, 7 wt % P,N-doped cellulose fibrils considerably 
      reduced the average and peak heat release rate (HRR) by 29.6% and 72.9%, 
      respectively, and increased the limited oxygen index (LOI) by 30.5%. The presence 
      of phosphate groups and ammonium phosphates within P,N-doped cellulose fibrils 
      was found to promote the thermal degradation of HDPE composites at a lower 
      temperature (i.e., 240  degrees C). The released acid catalyzed the dehydration of 
      cellulose to form an aromatic carbonaceous structure with a higher crystalline 
      orientation, which improves the flame retardancy of HDPE composites.
FAU - Zhang, Shuai
AU  - Zhang S
AD  - College of Materials Science and Engineering, Nanjing Forestry University, 
      Nanjing 210037, China.
FAU - Chen, He
AU  - Chen H
AD  - College of Materials Science and Engineering, Nanjing Forestry University, 
      Nanjing 210037, China.
FAU - Zhang, Yin
AU  - Zhang Y
AD  - College of Materials Science and Engineering, Nanjing Forestry University, 
      Nanjing 210037, China.
FAU - Zhang, Yi-Meng
AU  - Zhang YM
AD  - College of Materials Science and Engineering, Nanjing Forestry University, 
      Nanjing 210037, China.
FAU - Kan, Weiyan
AU  - Kan W
AD  - College of Materials Science and Engineering, Nanjing Forestry University, 
      Nanjing 210037, China.
FAU - Pan, Mingzhu
AU  - Pan M
AUID- ORCID: 0000-0003-1907-0554
AD  - College of Materials Science and Engineering, Nanjing Forestry University, 
      Nanjing 210037, China.
LA  - eng
GR  - 31670556/National Natural Science Foundation of China/
GR  - NLJQ2015-02/Science Fund for Distinguished Young Scholars of Nanjing Forestry 
      University/
PT  - Journal Article
DEP - 20200205
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC7077376
OTO - NOTNLM
OT  - flame retardancy
OT  - microstructural analysis
OT  - polymer-matrix composites (PMCs)
OT  - thermal stability
COIS- The authors declare no conflict of interest.
EDAT- 2020/02/09 06:00
MHDA- 2020/02/09 06:01
PMCR- 2020/02/05
CRDT- 2020/02/09 06:00
PHST- 2019/12/24 00:00 [received]
PHST- 2020/01/24 00:00 [revised]
PHST- 2020/01/25 00:00 [accepted]
PHST- 2020/02/09 06:00 [entrez]
PHST- 2020/02/09 06:00 [pubmed]
PHST- 2020/02/09 06:01 [medline]
PHST- 2020/02/05 00:00 [pmc-release]
AID - polym12020336 [pii]
AID - polymers-12-00336 [pii]
AID - 10.3390/polym12020336 [doi]
PST - epublish
SO  - Polymers (Basel). 2020 Feb 5;12(2):336. doi: 10.3390/polym12020336.