Influence of Magnesium Hydroxide/Aluminum Tri-Hydroxide Particle Size on Polymer Flame Retardancy: An Overview

Aziz, Ahmad Aroziki Abdul; Alauddin, Sakinah Mohd; Salleh, Ruzitah Mohd; Sabet, Maziyar

doi:10.7763/ijcea.2012.v3.238

Cited by 10 publications

(9 citation statements)

References 16 publications

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“…The chemical treatment of the fibre surface had created good interfacial bonding between the fibre and the matrix ( figure 2a, b). Meanwhile, figure 2c and d show a coarser surface under SEM due to the insertion of the MH fillers, which is similar to what has been found in a previous study as a result of severe agglomerations and less uniform distribution of the MH filler [34]. On the other hand, figure 2e-h show the formation of voids between the fibre and the matrix.…”

Section: Sem Morphologysupporting

confidence: 76%

Mechanical properties of kenaf fibre reinforced floreon biocomposites with magnesium hydroxide filler

Lee¹,

Sapuan²,

Lee³

et al. 2016

J. MECH. ENG. SCI.

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This paper presents a study of the mechanical properties of Kenaf fibre (KF) reinforced floreon (FLO)/ magnesium hydroxide (MH) bio-composites. The mixing of all materials was done by using a 21 mm lab twin screw extruder followed by hot pressing. The composite sheet was then cut into specimens for testing purposes. The scanning electron microscopy (SEM) was used to study the cross-section of the interface. In this regard, insufficient resin for fibre wetting, hydrolytic degradation on the biopolymer and poor interfacial bonding were attributed to the low strength profile. Yet, further addition of KF increased the tensile strength and flexural to 18.91 MPa and 73.09MPa, respectively. Nevertheless, inserting KF and MH filler were found to have a positive outcome on the flexural modulus by especially 10KF5MH and 10KF10MH for 3.02GPa and 3.17GPa, respectively. Insertion of KF and MH showed the deterioration of impact strength. However, addition of KF increased the impact strength to 16.82 J/m 2 . FLO is a hydrophobic biopolymer, and showed only 0.49% of the total water absorption in 14 days. Meanwhile, for the first 24 hours, the rates of water absorption were very high for all biocomposites. Hence, it is worth mentioning that the high contents of KF in bio-composites were found to have higher saturation period and higher total amount of water absorption while the MH caused shorter saturation period but lower total amount of water absorption. However, incompatibility of the interface bonding had increased the water absorption of KF/FLO/MH composites. 5KF5MH and 10KF5MH recorded water absorption at 10.65% and 13.33%. On the other hand, 10KF10MH was saturated at day 6 with 6.59 % of water absorption. Although 10KF5MH specimen did not have the best performance in mechanical properties, higher flame retardancy shall provide KF reinforced FLO composite with MH filler for more applications in the advanced sector, especially a hazardous environment.

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Section: Sem Morphologysupporting

confidence: 76%

Mechanical properties of kenaf fibre reinforced floreon biocomposites with magnesium hydroxide filler

Lee¹,

Sapuan²,

Lee³

et al. 2016

J. MECH. ENG. SCI.

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“…Aluminum tri-hydroxide (ATH) and magnesium hydroxide (MH) are two non-halogen fire retardant additives that undergo endothermic reaction and interfere with the combustion process when exposed to heat (Equation 6 and Equation 7). 40 2Al OH ð…”

Section: Nanosized Fire Retardantsmentioning

confidence: 99%

Advancements in traditional and nanosized flame retardants for polymers—A review

Vahidi

Bajwa

Shojaeiarani

et al. 2020

J of Applied Polymer Sci

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Synthetic polymers are ubiquitous materials widely used in construction, automotive, electronics, and countless commercial products. With the growing trend of polymer applications in everyday life, upholding the rigorous fire safety regulations has become a matter of concern. In this regard, numerous studies have been conducted for improving the fire retardancy of polymers, mainly through incorporating a diverse group of fire‐retardant compounds into polymer‐based composites. This review article aims to present a comprehensive overview of recent advances in the fire‐retardant categories for polymeric materials especially emphasizing the nanosized fire retardants. Along with an attempt to focus attention on the consumption of conventional and possibly harmful fire retardants, potential eco‐friendly alternatives are represented. A detailed discussion on the flame retardation mechanisms and conventional fire characterization techniques are also discussed.

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“…The combustion time is related to the length of the combustion and, therefore, to the ability of the material to self-extinguish. A combination of short combustion times together with a longer ignition time is a sign of a flammable material that can extinguish the flame upon heating [6].…”

Section: Burning Testmentioning

confidence: 99%

Development of Flame Retardant Stearic Acid Doped Graphite Powder and Magnesium Hydroxide Nanoparticles, Material for Thermal Energy Storage Applications

Han

Lhosupasirirat

Srikhirin

et al. 2022

J. Phys.: Conf. Ser.

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Nano-enhanced organic phase change material (PCM) composite consists of stearic acid (SA, act as the thermal storage media), graphite powder(GP, function as thermal conductor), and magnesium hydroxide nanoparticles(nMH), micro-sized (MMH), function as the flame retarder), were formulated and investigated for their thermophysical properties and flammability. The flame-retardant properties of nano-enhanced composite PCM were evaluated by using the burning test. Phase change temperature, phase change latent heat, and thermal conductivity were obtained by the T-history method. To reduce the flammability, 5wt% of MH with 0.8μm and 200nm were added to PCMs. 1wt% of GP improved thermal conductivity of stearic acid from 0.245 to 0.4887 W/mk, and doping of flame-retardant nanoparticles to PCM showed the reduction of flammability and slightly effecting on latent heat of PCM. nMH were found to work better for stearic acid flammability than MMH, where combustion time of 0.1g pure stearic acid(SA) was decreased from 41s to 17s and 23s. For nano-sized(SA/nMH) and micron-sized(SA/MMH)composites, the latent heat of pure PCM dropped from 171.26 to 124.85KJ/kg, but micron-sized addition negatively affects latent heat values by reducing from 171.26 to 88.87 KJ/kg. The results confirmed that nMH/GP/SA composite could reduce flammability without showing a negative impact on storage capacity.

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Influence of Magnesium Hydroxide/Aluminum Tri-Hydroxide Particle Size on Polymer Flame Retardancy: An Overview

Cited by 10 publications

References 16 publications

Mechanical properties of kenaf fibre reinforced floreon biocomposites with magnesium hydroxide filler

Mechanical properties of kenaf fibre reinforced floreon biocomposites with magnesium hydroxide filler

Advancements in traditional and nanosized flame retardants for polymers—A review

Development of Flame Retardant Stearic Acid Doped Graphite Powder and Magnesium Hydroxide Nanoparticles, Material for Thermal Energy Storage Applications

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