Tensile and flexural properties of polypropylene composites filled with highly effective flame retardant magnesium hydroxide

Composites based on polypropylene and glass fiber were prepared by melt mixing. The effect of magnesium hydroxide as a flame retardant on flammability and thermal behavior of glass fiber/polypropylene composites was studied. Ratio of glass fiber to magnesium hydroxide in each composite sample was varied. Maleic anhydride grafted polypropylene (MAPP) was used to improve the interfacial adhesion between polypropylene and fillers. Flammability and thermal behavior of the composites were examined using a horizontal burning test and a thermogravimetric analyzer, respectively. Morphology and mechanical properties of the composites were also investigated. Magnesium hydroxide reduced the flammability while improved thermal decomposition temperature of the polypropylene composites. However, magnesium hydroxide showed a negative impact on the tensile strength of the polypropylene composites.

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Study on curing and flammability properties of UV-curable flame-retardant coating on jute/polypropylene composites surface

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-021-10864-6 ◽

2021 ◽

Author(s):

Yanli Dou ◽

Xuefei Li ◽

Kaiyue Zheng ◽

Jiawen Liu ◽

Jiazi Hou

Keyword(s):

Flame Retardant ◽

Uv Curable ◽

Polypropylene Composites

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Flame retardant and mechanical properties of polyethylene/magnesium hydroxide/montmorillonite nanocomposites

Journal of Industrial and Engineering Chemistry ◽

10.1016/j.jiec.2013.10.020 ◽

2014 ◽

Vol 20 (4) ◽

pp. 2401-2408 ◽

Cited By ~ 46

Author(s):

Sung-Po Liu

Keyword(s):

Mechanical Properties ◽

Flame Retardant ◽

Magnesium Hydroxide ◽

Montmorillonite Nanocomposites

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Effects of Graphene Nanoplatelets on Mechanical and Fire Performance of Flax Polypropylene Composites with Intumescent Flame Retardant

Molecules ◽

10.3390/molecules26134094 ◽

2021 ◽

Vol 26 (13) ◽

pp. 4094

Author(s):

Imran Ali ◽

Nam Kyeun Kim ◽

Debes Bhattacharyya

Keyword(s):

Flame Retardant ◽

Decomposition Rate ◽

Natural Fiber ◽

Fire Retardant ◽

Graphene Nanoplatelets ◽

Intumescent Flame Retardant ◽

Fume Hood ◽

Fire Dynamics ◽

Polypropylene Composites ◽

Set Up

The integration of intumescent flame-retardant (IFR) additives in natural fiber-based polymer composites enhances the fire-retardant properties, but it generally has a detrimental effect on the mechanical properties, such as tensile and flexural strengths. In this work, the feasibility of graphene as a reinforcement additive and as an effective synergist for IFR-based flax-polypropylene (PP) composites was investigated. Noticeable improvements in tensile and flexural properties were achieved with the addition of graphene nanoplatelets (GNP) in the composites. Furthermore, better char-forming ability of GNP in combination with IFR was observed, suppressing HRR curves and thus, lowering the total heat release (THR). Thermogravimetric analysis (TGA) detected a reduction in the decomposition rate due to strong interfacial bonding between GNP and PP, whereas the maximum decomposition rate was observed to occur at a higher temperature. The saturation point for the IFR additive along with GNP has also been highlighted in this study. A safe and effective method of graphene encapsulation within PP using the fume-hood set-up was achieved. Finally, the effect of flame retardant on the flax–PP composite has been simulated using Fire Dynamics Simulator.

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Synthesis and characterization of PEDMCD as a flame retardant and its application in epoxy resins

RSC Advances ◽

10.1039/d0ra10233d ◽

2021 ◽

Vol 11 (5) ◽

pp. 2756-2766

Author(s):

Yi Zhang ◽

Weiwei Yang

Keyword(s):

Flame Retardant ◽

Epoxy Resins ◽

Synthesis And Characterization ◽

Direct Polycondensation ◽

Polycondensation Reaction ◽

Highly Effective

In this study, a highly effective flame retardant agent, called polybicyclopentaerythritol phosphate-O-4-imino-p-phenylmethane-4-imino-2-chloro-1,3,5-s-triazine (PEDMCD), has been prepared through a direct polycondensation reaction.

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