Chem. J. Chinese Universities ›› 2017, Vol. 38 ›› Issue (2): 284.doi: 10.7503/cjcu20160630
• Polymer Chemistry • Previous Articles Next Articles
GUO Zhenghong*(), FANG Zhengping, CHEN Chao
Received:
2016-09-07
Online:
2017-02-10
Published:
2016-12-13
Contact:
GUO Zhenghong
E-mail:guozhenghong@nit.zju.edu.cn
Supported by:
CLC Number:
TrendMD:
GUO Zhenghong, FANG Zhengping, CHEN Chao. Synergistic Flame Retardant and Suppression Smoke Mechanism of Cerium Phenylphosphonate and Decabromodiphenyl Oxide in Glass-fiber Reinforced Poly(1,4-butylene terephthalate) Composites†[J]. Chem. J. Chinese Universities, 2017, 38(2): 284.
Sample | Mass fraction(%) | |||
---|---|---|---|---|
PET-GF | DBDPO | CeHPP | Antioxidant | |
PET-GF | 100 | 0 | 0 | 0.3 |
PET-GF/DBDPO | 92 | 8 | 0.3 | |
PET-GF/CeHPP | 92 | 8 | 0.3 | |
PET-GF/DBDPO/CeHPP | 92 | 6 | 2 | 0.3 |
Table 1 Formulations of PET-GF/DBDPO/ CeHPP composites
Sample | Mass fraction(%) | |||
---|---|---|---|---|
PET-GF | DBDPO | CeHPP | Antioxidant | |
PET-GF | 100 | 0 | 0 | 0.3 |
PET-GF/DBDPO | 92 | 8 | 0.3 | |
PET-GF/CeHPP | 92 | 8 | 0.3 | |
PET-GF/DBDPO/CeHPP | 92 | 6 | 2 | 0.3 |
Fig.1 Heat release rate(A) and total heat release(B) of PET-GF/DBDPO/CeHPP composites in the Cone tests a. PET-GF; b. PET-GF/DBDPO; c. PET-GF/DBDPO/CeHPP; d. PET-GF/CeHPP.
Sample | PET-GF | PET-GF/DBDPO | PET-GF/DBDPO/CeHPP | PET-GF/CeHPP |
---|---|---|---|---|
tignited/s | 199 | 220 | 231 | 219 |
tPHRR/s | 245 | 253 | 261 | 255 |
PHRR/(kW·m-2) | 241.8 | 201.3 | 193.0 | 219.3 |
THR/(MJ·m-2) | 55.0 | 34.6 | 28.2 | 39.0 |
AMLR/(g·s-1) | 0.071 | 0.073 | 0.059 | 0.066 |
AEHC/(MJ·kg-1) | 21.6 | 5.1 | 16.2 | 19.3 |
ASPR/s-1 | 3.64 | 5.56 | 3.73 | 3.73 |
TSP(%) | 1235 | 1776 | 1135 | 1172 |
ASEA/(m2·kg-1) | 320 | 529 | 399 | 435 |
CO yield(%) | 0.051 | 0.133 | 0.139 | 0.078 |
CO2 yield(%) | 2.911 | 1.854 | 1.868 | 2.318 |
Table 2 Cone calorimetric data for PET-GF/DBDPO/CeHPP composites*
Sample | PET-GF | PET-GF/DBDPO | PET-GF/DBDPO/CeHPP | PET-GF/CeHPP |
---|---|---|---|---|
tignited/s | 199 | 220 | 231 | 219 |
tPHRR/s | 245 | 253 | 261 | 255 |
PHRR/(kW·m-2) | 241.8 | 201.3 | 193.0 | 219.3 |
THR/(MJ·m-2) | 55.0 | 34.6 | 28.2 | 39.0 |
AMLR/(g·s-1) | 0.071 | 0.073 | 0.059 | 0.066 |
AEHC/(MJ·kg-1) | 21.6 | 5.1 | 16.2 | 19.3 |
ASPR/s-1 | 3.64 | 5.56 | 3.73 | 3.73 |
TSP(%) | 1235 | 1776 | 1135 | 1172 |
ASEA/(m2·kg-1) | 320 | 529 | 399 | 435 |
CO yield(%) | 0.051 | 0.133 | 0.139 | 0.078 |
CO2 yield(%) | 2.911 | 1.854 | 1.868 | 2.318 |
Fig.2 Mass loss rate(MLR, A) and derive mass(B) of PET-GF/DBDPO/CeHPP composites in the Cone tests a. PET-GF; b. PET-GF/DBDPO; c. PET-GF/DBDPO/CeHPP; d. PET-GF/CeHPP.
Fig.3 Smoke production curves of PET-GF/DBDPO/CeHPP composites in Cone calorimeter (A) CO yield; (B) CO2 yield. a. PET-GF; b. PET-GF/DBDPO; c. PET-GF/DBDPO/CeHPP; d. PET-GF/CeHPP.
Fig.4 FTIR spectra of pyrolysis gaseous products emitted from PET-GF, PET-GF/DBDPO, PET-GF/CeHPP and PET-GF/DBDPO/CeHPP composites at the maximum evolution rate(439 ℃)(A) and total absorbance of gaseous(B) products vs time
Fig.5 Absorbance of pyrolysis products for PET-GF, PET-GF/DBDPO, PET-GF/CeHPP and PET-GF/DBDPO/CeHPP composites vs. time (A) CO; (B) CO2; (C) hydrocarbons; (D) carbonyl compounds.
Sample | C(%) | O(%) | P(%) | Ce(%) | C/O | P/Ce |
---|---|---|---|---|---|---|
Outer char PET-GF/DBDPO/CeHPP | 49.68 | 46.30 | 3.12 | 0.95 | 1.10 | 3.50 |
Inner char PET-GF/DBDPO/CeHPP | 53.22 | 43.03 | 2.80 | 0.95 | 1.20 | 2.90 |
Outer char PET-GF/CeHPP | 64.07 | 29.17 | 4.63 | 2.13 | 2.20 | 2.20 |
Inner char PET-GF/CeHPP | 60.17 | 35.06 | 3.14 | 1.63 | 1.70 | 1.90 |
Table 3 EDS data of residues for PET-GF/DBDPO/CeHPP and PET-GF/CeHPP composites
Sample | C(%) | O(%) | P(%) | Ce(%) | C/O | P/Ce |
---|---|---|---|---|---|---|
Outer char PET-GF/DBDPO/CeHPP | 49.68 | 46.30 | 3.12 | 0.95 | 1.10 | 3.50 |
Inner char PET-GF/DBDPO/CeHPP | 53.22 | 43.03 | 2.80 | 0.95 | 1.20 | 2.90 |
Outer char PET-GF/CeHPP | 64.07 | 29.17 | 4.63 | 2.13 | 2.20 | 2.20 |
Inner char PET-GF/CeHPP | 60.17 | 35.06 | 3.14 | 1.63 | 1.70 | 1.90 |
Sample | P(%) | Ce(%) | Br(%) | P/Ce |
---|---|---|---|---|
Outer char PET-GF/DBDPO/CeHPP | 83.35 | 15.89 | 0.76 | 5.20 |
Inner char PET-GF/DBDPO/CeHPP | 79.66 | 3.44 | 16.90 | 23.10 |
Table 4 XPS data of residues for PET-GF/DBDPO/CeHPP composite after Cone test
Sample | P(%) | Ce(%) | Br(%) | P/Ce |
---|---|---|---|---|
Outer char PET-GF/DBDPO/CeHPP | 83.35 | 15.89 | 0.76 | 5.20 |
Inner char PET-GF/DBDPO/CeHPP | 79.66 | 3.44 | 16.90 | 23.10 |
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