Flame retardancy mechanism of poly(butylene terephthalate)/aluminum diethylphosphinate composites with an epoxy-functional polysiloxane

RSC Advances ◽  
2014 ◽  
Vol 4 (32) ◽  
pp. 16551-16560 ◽  
Author(s):  
Xiao Han ◽  
Jianqing Zhao ◽  
Shumei Liu ◽  
Yanchao Yuan
Keyword(s):  
Synergistic Effect ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Butylene Terephthalate ◽  
Flame Retardancy Mechanism

The manuscript presents an outstanding synergistic effect of aluminum diethylphosphinate (AlPi) and epoxy-functional polysiloxane (EPM) for preparing flame-retardant poly(butylene terephthalate) (PBT).

Preparation of zinc hydroxystannate nanocomposites coated by organophosphorus and investigation of their effect on mechanical properties and flame retardancy of poly(vinyl chloride)

RSC Advances ◽  
2015 ◽  
Vol 5 (120) ◽  
pp. 99291-99298 ◽  
Author(s):  
Ting-Ting Gao ◽  
Zhi-Wei Li ◽  
Lai-Gui Yu ◽  
Zhi-Jun Zhang
Keyword(s):  
Mechanical Properties ◽  
Synergistic Effect ◽  
Flame Retardant ◽  
Vinyl Chloride ◽  
Flame Retardancy ◽  
Poly Vinyl Chloride ◽  
Zinc Hydroxystannate

A novel organic–inorganic nanohybrid flame retardant was prepared. The organic flame retardant could not only surface modify to the inorganic flame retardant but also improve flame retardancy of inorganic flame retardant with the synergistic effect.

Preparation, structure and flame retardancy of poly(butylene terephthalate) with gradient intumescent flame retardant distribution

2019 ◽  
Vol 9 (6) ◽  
pp. 660-667
Author(s):  
Zhengqiu Li ◽  
Li Liao ◽  
Liangdong Mao ◽  
Jianbin Li ◽  
Long Zuo ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Intumescent Flame Retardant ◽  
Processing Technology ◽  
Processing Conditions ◽  
Butylene Terephthalate ◽  
Uniform Dispersion ◽  
The Matrix ◽  
Different Levels

In this manuscript, the content-gradient distributions of an intumescent flame retardant (IFR) island-shaped structure in poly(butylene terephthalate) (PBT) were prepared using compression sintering processing technology inspired by powder metallurgy, to achieve efficient flame retardancy and mechanical properties with low flame retardant dosage. The PBT/IFR master-batch was first prepared by extrusion and then pulverized into powder. At low temperature (20 °C below the melting temperature) and high pressure (≥ 50 MPa) sintering processing conditions, two PBT/IFR powders with different levels of IFR content were fabricated into restricted island-like structure composites. The island with a higher IFR content exhibited flame retardancy, while the island with lower IFR content maintained the mechanics of the matrix. Compared with the uniform dispersion PBT/20 wt% IFR composite, the combustion of the PBT/IFR (25 wt%:15 wt% = 1:1) gradient content composite improved from V-1 to V-0 using a UL-94 test, while the tensile strength increased by 10%. The performance of the flame retardant was improved by periodically changing its distribution in the polymer matrix via restricted island-like structures fabricated using compression sintering processing technology inspired by powder metallurgy.

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