Industrial Implementation of Aluminum Trihydrate-Fiber Composition for Fire Resistance and Mechanical Properties in Glass-Fiber-Reinforced Polymer Roofs (original) (raw)
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Optimization Studies in Flame Retardant Fibre Reinforced Plastic Composites for Roofing Application
2012
Composite materials, especially, fibre reinforced plastics (FRP) are widely used in different fields such as aerospace, automobile, electrical and electronics, domestic, building and construction. It is also need of the hour in developing countries like India that low cost housing / building is to be provided within short duration at times of natural crisis such as Tsunamis, earthquake, floods etc. With this main objective the present work is aimed at carrying out studies systematically to arrive at cost effective flame retardant formulation using different Flame retardant fillers such as Aluminium tri hydrate (ATH), Antimony trioxide (Sb2O3), Deca Bromo diphenyl ether (DeBDE) a novel halogenated compound, Tricresyl phosphate (TCP) at different loading levels with general purpose unsaturated polyester resin and chopped strand glass fibre mat. The FRP laminates were prepared using hand lay up method and the samples were tested for various properties such as mechanical, thermal, flamm...
2021
Composite fiberglass is a common material used in marine industry to fabricate marine sport equipment, boats, yachts and others. The material is expected to have a performance such as high strength, economic and safety especially related to fire incidents. However, in composite fiberglass, the resin in the system has high flammability properties and becomes the acceleration factor of fire propagation after ignition. The current system is a combination of ATH and APP and produces optimum fire-retardant performance. The mixture with a fire-retardant additive leads to an extra procedure and risk to the mechanical properties of the structure. Thus, this study is conducted to evaluate the mechanical and fire retardants performance of various hybrid multilayer fiberglass composites embedded with aluminum phosphate (0 wt%, 5 wt%, 10 wt%), a new fire-retardant additive. The highest mechanical strength was observed in samples with in all samples with 5wt% of aluminum phosphate additive. A combination layer of CSM, WR and CSM shows the optimum result for mechanical strength and fire-retardant properties.
IOP Conference Series: Materials Science and Engineering
In the present study, polymeric epoxy and polyester resin reinforced with glass fiber compounds were prepared by adding of flame retardants based on aluminum and magnesium hydroxide in order to evaluate their influence on mechanical properties. An experimental DOE design was developed with two qualitative factors: the resin and retardant type; with two levels each and a quantitative factor: volumetric composition of the retardant with three levels (3%, 6% and 9%). With all possible combinations; tensile, flexural and impact tests were carried out. The results showed that the addition of retardants in different percentages has different influence for each mechanical property. It was evidenced that the 9% HA Aluminum Hydroxide has no significant effect on the tensile strength and its modulus compared to Magnesium Hydroxide HM. Conversely; on the flexural strength, flexural modulus and rupture energy the HM has a slightly lower effect with respect to the HA. For flexural strength and its modulus, the best proportion of retardant was 6%. 3% is the recommendation for rupture energy. The data presented in this document can be used to improve the fire resistance of the existing materials studied.
EFFECT OF ALUMINUM PHOSPHATE ON MECHANICAL AND FLAME RETARDANT PROPERTIES OF COMPOSITES FIBREGLASS
In marine industries especially in fiberglass boat making, material selection is instrumental for optimal product performance and economy. Mechanical properties of laminated fiberglass composite containing polyester resin, fiberglass and new fire retardant additive fabricated by Hand lay-up technique were investigated. The fire retardancy mechanism and mechanical properties of aluminum phosphate (AlPO₄) were investigated in seven layers composite fiberglass system. E-glass / Polyester composite of AlPO4 was prepared with various different ratio of Aluminum Phosphates. Composite system with addition of 5wt% AlPO4 observed maximum strength in tensile, flexural and impact test. Fire retardant test also showed an optimised performance in similar ratio.
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In this study, ammonium polyphosphate (APP) and aluminum hydroxide (ALH) with different mass contents were used as fire retardants (FRs) on plant-based natural flax fabric-reinforced polymer (FFRP) composites. Thermogravimetric analysis (TGA), limited oxygen index (LOI), and the Underwriters Laboratories (UL)-94 horizontal and vertical tests were carried out for evaluating the effectiveness of these FR treatments. Flat-coupon tensile test was performed to evaluate the effects of FR treatment on the mechanical properties of the FFRP composites. For both fire retardants, the results showed that the temperature of the thermal decomposition and the LOI values of the composites increased as the FR content increases. Under the UL-94 vertical test, the FFRP composites with 20% and 30% APP (i.e., by mass content of epoxy polymer matrix) were self-extinguished within 30 and 10 s following the removal of the flame without any burning drops, respectively. However, the mechanical tensile tests ...
EFFECT OF ALUMINUM PHOSPHATE ON STRUCTURAL AND FLAME RETARDANT PROPERTIES OF COMPOSITES FIBREGLASS
Composite fiberglass boats are basically constructed with three broad groups of resin, reinforcement and core material. The combination of these material forms high strength, low density, economic and easy to manufacture structure for boat construction. In the composite system, resin is one of components that has high flammability properties. Phosphate types of fire retardants are well known can increase the fire retardance properties by the higher retention due to the char formation. This study was conducted to analyse the interaction of modified polyester resin and composites fiberglass with aluminum phosphate as new fire retardance. The interaction mechanism of aluminum phosphate (AlPO4) was investigated in seven layers composite fiberglass system. The Fourier Transform Infrared (FTIR) spectroscopy of modified polyester resin and composite fiberglass showed an improved of reaction bonding stability at 5wt% of AlPO4 respectively. Flammability properties of composite obtained using vertical burning (UL 94) test method produced a similar finding.
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Glass fiber reinforced plastic (GFRP) composites have great potential to replace metal components in vehicles by maintaining their mechanical properties and improving fire resistance. Ease of form, anti-corrosion, lightweight, fast production cycle, durability and high strength-to-weight ratio are the advantages of GFRP compared to conventional materials. The transition to the use of plastic materials can be performed by increasing their mechanical, thermal and fire resistance properties. This research aims to improve the fire resistance of GFRP composite and maintain its strength by a combination of pumice-based active nano filler and commercial active filler. The nano active filler of pumice particle (nAFPP) was obtained by the sol–gel method. Aluminum trihydroxide (ATH), sodium silicate (SS) and boric acid (BA) were commercial active fillers that were used in this study. The GFRP composite was prepared by a combination of woven roving (WR) and chopped strand mat (CSM) glass fiber...
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