Synergetic Improvement in Thermal Conductivity and Flame Retardancy of Epoxy/Silver Nanowires Composites by Incorporating “Branch-Like” Flame-Retardant Functionalized Graphene

2018 ◽  
Vol 10 (25) ◽  
pp. 21628-21641 ◽  
Author(s):  
Yuezhan Feng ◽  
Xiongwei Li ◽  
Xiaoyu Zhao ◽  
Yunsheng Ye ◽  
Xingping Zhou ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Silver Nanowires ◽  
Functionalized Graphene

Enhanced thermal conductivity and flame retardancy of polyamide 6/flame retardant composites with hexagonal boron nitride

2018 ◽  
Vol 38 (8) ◽  
pp. 767-774 ◽  
Author(s):  
Liang Wang ◽  
Luchong Zhang ◽  
Andreas Fischer ◽  
Yuhua Zhong ◽  
Dietmar Drummer ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
High Performance ◽  
Heat Dissipation ◽  
Hexagonal Boron Nitride ◽  
Light Emitting Diode ◽  
Polyamide 6 ◽  
Twin Screw

Abstract High performance composite of polyamide 6 (PA6)/flame retardant (FR)/hexagonal boron nitride (hBN) was prepared via twin screw extrusion, followed by injection molding. The heat dissipation of the composite was significantly improved by incorporating 40 vol% of hBN, and the corresponding thermal conductivity was up to 5.701 W/(m·K), nearly 17 times that of the PA6/FR composites. In addition, the combination effect of hBN and FR to the flame retardancy of the composites was observed, and the addition of hBN could dramatically enhance the flame retardancy of composites, achieving a UL94 V-0 rating with a limited oxygen index (LOI) value of 37%. This multifunctional modification would broaden the application field of PA6 composites in light-emitting diode (LED) lamps, electronic products, and so on.

Simultaneous improvement in the flame resistance and thermal conductivity of epoxy/Al2O3 composites by incorporating polymeric flame retardant-functionalized graphene

2017 ◽  
Vol 5 (26) ◽  
pp. 13544-13556 ◽  
Author(s):  
Yuezhan Feng ◽  
Ji Hu ◽  
Yang Xue ◽  
Chengen He ◽  
Xingping Zhou ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Flame Retardant ◽  
Enhancement Effect ◽  
Functionalized Graphene ◽  
Flame Resistance ◽  
Synergistic Enhancement

A synergistic enhancement effect of PFR-fRGO and Al2O3 on the flame resistance and thermal conductivity of epoxy-based composites.

scholarly journals Covalently-functionalized graphene oxide via introduction of bifunctional phosphorus-containing molecules as an effective flame retardant for polystyrene

RSC Advances ◽  
2018 ◽  
Vol 8 (44) ◽  
pp. 24993-25000 ◽  
Author(s):  
Kang Dai ◽  
Shuai Sun ◽  
Wenbin Xu ◽  
Yuan Song ◽  
Zhenzhen Deng ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Phosphorus Containing

A covalently-functionalized graphene oxide with excellent flame retardancy was successfully prepared.

Green reduction of graphene oxide by polydopamine to a construct flexible film: superior flame retardancy and high thermal conductivity

2017 ◽  
Vol 5 (35) ◽  
pp. 18542-18550 ◽  
Author(s):  
Fubin Luo ◽  
Kun Wu ◽  
Jun Shi ◽  
Xiangxiang Du ◽  
Xiaoya Li ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Graphene Oxide ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Reducing Agent ◽  
High Thermal Conductivity ◽  
Flexible Film

Inspired by mussels, dopamine (DOPA) was used as a green reducing agent for graphene oxide (GO) to prepare a superior flame retardant and high thermal conductive flexible film.

Thermally conductive, super flexible and flame-retardant BN-OH/PVA composite film reinforced by lignin nanoparticles

2019 ◽  
Vol 7 (45) ◽  
pp. 14159-14169 ◽  
Author(s):  
Xiu Wang ◽  
Song-Lin Ji ◽  
Xin-Qi Wang ◽  
Hui-Yang Bian ◽  
Ling-Rui Lin ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Composite Film ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Thermally Conductive ◽  
Functional Fillers

LNPs were utilized as functional fillers to enhance the thermal conductivity, flame-retardancy, and flexibility of BN-OH/PVA composite film.

scholarly journals Effect of Thermal Conductive Fillers on the Flame Retardancy, Thermal Conductivity, and Thermal Behavior of Flame-Retardant and Thermal Conductive Polyamide 6

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4114 ◽  
Author(s):  
Fang Wang ◽  
Wenbo Shi ◽  
Yuliang Mai ◽  
Bing Liao
Keyword(s):  
Thermal Conductivity ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Combustion Process ◽  
Polyamide 6 ◽  
Gravimetric Analysis ◽  
Limiting Oxygen Index ◽  
Conductive Fillers ◽  
Ul 94 ◽  
The Impact

In this work, polyamide 6 (PA6) composites with improved flame retardancy and thermal conductivity were prepared with different thermal conductive fillers (TC fillers) such as aluminum nitride (AlN) and boron nitride (BN) in a PA6 matrix with aluminum diethylphosphinate (AlPi) as a fire retardant. The resultant halogen-free flame retardant (HFFR) and thermal conductive (TC) PA6 (HFFR-TC-PA6) were investigated in detail with a mechanical property test, a limiting oxygen index (LOI), the vertical burning test (UL-94), a cone calorimeter, a thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). The morphology of the impact fracture surface and char residue of the composites were analyzed by scanning electron microscopy (SEM). It was found that the thermal conductivity of the HFFR-TC-PA6 composite increased with the amount of TC fillers. The TC fillers exerted a positive effect for flame retardant PA6. For example, the HFFR-TC-PA6 composites with the thickness of 1.6 mm successfully passed the UL-94 V-0 rating with an LOI of more than 29% when the loading amount of AlN-550RFS, BN-SW08 and BN-NW04 was 30 wt%. The morphological structures of the char residues revealed that TC fillers formed a highly integrated char layer surface (without holes) during the combustion process, as compared to that of flame retardant PA6/AlPi composites. In addition, the thermal stability and crystallization behavior of the composites were studied.

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