Intumescent flame retardation of melamine-modified montmorillonite on polyamide 6: Enhancement of condense phase and flame retardance

2010 ◽  
Vol 51 (2) ◽  
pp. 377-385 ◽  
Author(s):  
Keyi Fang ◽  
Juan Li ◽  
Chenhao Ke ◽  
Qiliang Zhu ◽  
Kang Tao ◽  
...  
Keyword(s):  
Polyamide 6 ◽  
Flame Retardance ◽  
Modified Montmorillonite ◽  
Flame Retardation ◽  
Intumescent Flame Retardation

The Effect of Polyethylene-Octene Elastomer on the Morphological and Mechanical Properties of Polyamide 6/Polypropylene Nanocomposites

2005 ◽  
Vol 13 (8) ◽  
pp. 795-805 ◽  
Author(s):  
M.U. Wahit ◽  
A. Hassan ◽  
Z.A. Mohd Ishak ◽  
A. Abu Bakar
Keyword(s):  
Mechanical Properties ◽  
Polyamide 6 ◽  
X Ray Diffraction ◽  
X Ray ◽  
Melt Compounding ◽  
Modified Montmorillonite ◽  
Polypropylene Nanocomposites ◽  
Rubber Toughened ◽  
Izod Impact ◽  
Pp Blends

Rubber-toughened nanocomposites (RTNC) consisting of ternary blends of polyamide 6 (PA6), polypropylene (PP) and polyethylene-octene elastomer (POE) containing 4 wt% of organophilic modified montmorillonite were produced by melt compounding followed by injection moulding. The blend composition was kept constant (PA6/PP=70/30 parts by weight) while the POE content was varied between 5 and 20 wt%. Maleated PP (PP-g-MA) was used as compatibilizer. The morphology of the RTNC was studied by scanning electron microscopy and X-ray diffraction (XRD). The mechanical properties of RTNC were studied through tensile, flexural, Izod impact and fracture toughness properties. While the tensile and flexural properties were found to decrease with the increasing concentration of POE, the toughness was significantly enhanced as compared to the neat PA6/PP blends. In general, the blends containing 10-15 wt% of POE had the best balance of stiffness, strength and toughness. The addition of 30 wt% of PP in the PA6 matrix improved the compatibility between PA6 and the rubber phase. XRD established that the organoclay was well dispersed (exfoliated) and preferentially embedded in the PA6 phase.

Intumescent flame retardation of polypropylene/bamboo fiber semi-biocomposites

2012 ◽  
Vol 111 (1) ◽  
pp. 425-430 ◽  
Author(s):  
Shibin Nie ◽  
Xueli Liu ◽  
Kun Wu ◽  
Guanglong Dai ◽  
Yuan Hu
Keyword(s):  
Bamboo Fiber ◽  
Flame Retardation ◽  
Intumescent Flame Retardation

scholarly journals Influence of Magnesium Aluminate Nanoparticles on Epoxy-Based Intumescent Flame Retardation Coating System

Coatings ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 968
Author(s):  
Hatem Abuhimd ◽  
Tentu Nageswara Rao ◽  
Jung-il Song ◽  
Prashanthi Yarasani ◽  
Faheem Ahmed ◽  
...  
Keyword(s):  
Heat Release ◽  
Flame Retardant ◽  
Magnesium Aluminate ◽  
Coating System ◽  
Limiting Oxygen Index ◽  
Foaming Agents ◽  
Peak Heat Release Rate ◽  
Flame Retardation ◽  
Coating Formulation ◽  
Intumescent Flame Retardation

Ethylenediamine modified ammonium polyphosphate (EDA-MAPP) and charring-foaming agents (CFA) were prepared using a simple chemical method and further used to make intumescent flame retardant coatings based on epoxy resin. The content of MAPP and CFA was fixed at a ratio of 2:1. Nanoparticles of magnesium aluminate (MgAl2O4 NPs) have been introduced into the flame retardant coating formulation in various quantities to evaluate the promotional action of MgAl2O4 NPs with a flame retardant coating system. The promotional action of MgAl2O4 NPs on the flame retardant coating formulation was studied using a vertical burning test (UL-94V), limiting oxygen index (LOI), thermogravimetric analysis (TGA) and Fourier transform infra-red spectroscopy (FTIR). The UL-94V results indicated that the addition of MgAl2O4 effectively increased flame retardancy and met the V-0 rating at each concentration. The TGA results revealed that the incorporation of MgAl2O4 NPs at each concentration effectively increased the thermal stability of the flame retardant coating system. Cone-calorimeter experiments show that MgAl2O4 NPs effectively decreased peak heat release rate (PHRR) and total heat release (THR). The FTIR results indicated that MgAl2O4 NPs can react with MAPP and generate a dense char layer that prevents the transfer of oxygen and heat.

Interfacial carbonation for efficient flame retardance of glass fiber-reinforced polyamide 6

2015 ◽  
Vol 6 (24) ◽  
pp. 4409-4414 ◽  
Author(s):  
Wenhua Chen ◽  
Pengju Liu ◽  
Yuan Liu ◽  
Qi Wang
Keyword(s):  
Glass Fiber ◽  
Polymer Composites ◽  
Polyamide 6 ◽  
Flame Retardance ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced

The interfacial carbonation mode is introduced to solve the high flammability of GF-reinforced polymer composites through interfacial char produced.

scholarly journals Nanocomposites of polyamide 6/residual monomer with organic-modified montmorillonite and their nanofibers produced by electrospinning

2012 ◽  
Vol 15 (4) ◽  
pp. 611-621 ◽  
Author(s):  
Cesar Augusto Gonçalves Beatrice ◽  
Camila Ribeiro dos Santos ◽  
Marcia Cristina Branciforti ◽  
Rosario Elida Suman Bretas
Keyword(s):  
Polyamide 6 ◽  
Residual Monomer ◽  
Modified Montmorillonite
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