Research output: Contribution to journal › Article › peer-review
Effects of novel phosphorus-nitrogen-containing DOPO derivative salts on mechanical properties, thermal stability and flame retardancy of flexible polyurethane foam. / Ma, Shicong; Xiao, Yuling; Zhou, Feng et al.
In: Polymer Degradation and Stability, Vol. 177, 109160, 07.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Effects of novel phosphorus-nitrogen-containing DOPO derivative salts on mechanical properties, thermal stability and flame retardancy of flexible polyurethane foam
AU - Ma, Shicong
AU - Xiao, Yuling
AU - Zhou, Feng
AU - Schartel, Bernhard
AU - Chan, Yin Yam
AU - Korobeinichev, Oleg P.
AU - Trubachev, Stanislav A.
AU - Hu, Weizhao
AU - Ma, Chao
AU - Hu, Yuan
PY - 2020/7
Y1 - 2020/7
N2 - In this work, a series of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) derivative salts containing phosphorus and nitrogen were synthesized, and their effects on mechanical properties, thermal stability and flame retardancy of flexible polyurethane foam (FPUF) were investigated. Studies have shown that the addition of DOPO derivatives will increase the tensile strength, compression set, and compression hardness of FPUF, but it will lead to a decrease in elongation at break. Thermogravimetric analysis showed that the initial decomposition temperature of FPUF containing DOPO derivatives was reduecd, but the char reside was significantly improved. A series of combustion tests indicated that the addition of DOPO derivative salts can improve the flame retardancy of FPUF, of which 10-hydroxy-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide dicyandiamide salt (D-DICY) exhibited the best flame retardancy. When the load of D-DICY was 20 phr, the limiting oxygen index (LOI) of foam reached 24.5%, and the peak heat release rate and total heat release were decreased by 55.7% and 52.9%, respectively. Furthermore, based on the analysis of the gas phase combustion products and the char residue of the condensed phase, the possible flame retardant mechanism was proposed.
AB - In this work, a series of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) derivative salts containing phosphorus and nitrogen were synthesized, and their effects on mechanical properties, thermal stability and flame retardancy of flexible polyurethane foam (FPUF) were investigated. Studies have shown that the addition of DOPO derivatives will increase the tensile strength, compression set, and compression hardness of FPUF, but it will lead to a decrease in elongation at break. Thermogravimetric analysis showed that the initial decomposition temperature of FPUF containing DOPO derivatives was reduecd, but the char reside was significantly improved. A series of combustion tests indicated that the addition of DOPO derivative salts can improve the flame retardancy of FPUF, of which 10-hydroxy-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide dicyandiamide salt (D-DICY) exhibited the best flame retardancy. When the load of D-DICY was 20 phr, the limiting oxygen index (LOI) of foam reached 24.5%, and the peak heat release rate and total heat release were decreased by 55.7% and 52.9%, respectively. Furthermore, based on the analysis of the gas phase combustion products and the char residue of the condensed phase, the possible flame retardant mechanism was proposed.
KW - DOPO derivative salts
KW - Flame retardancy
KW - Flexible polyurethane foam
KW - Mechanical properties
KW - Thermal stability
KW - FIRE HAZARD
KW - PERFORMANCE
KW - DECOMPOSITION
KW - ZIRCONIUM-PHOSPHATE
KW - RESINS
KW - FRAMEWORKS
KW - CONSTRUCTION
KW - SMOKE-SUPPRESSANT
KW - COATINGS
KW - HYBRID
UR - http://www.scopus.com/inward/record.url?scp=85083099473&partnerID=8YFLogxK
U2 - 10.1016/j.polymdegradstab.2020.109160
DO - 10.1016/j.polymdegradstab.2020.109160
M3 - Article
AN - SCOPUS:85083099473
VL - 177
JO - Polymer Degradation and Stability
JF - Polymer Degradation and Stability
SN - 0141-3910
M1 - 109160
ER -
ID: 23989105