نتایج جستجو برای: fire retardancy
تعداد نتایج: 43235 فیلتر نتایج به سال:
Thermally reduced graphite oxide (TRGO), containing only four single carbon layers on average, was combined with ammonium polyphosphate (APP) and magnesium hydroxide (MH), respectively, in polypropylene (PP). The nanoparticle’s influence on different flame-retarding systems and possible synergisms in pyrolysis, reaction to small flame, fire behavior and mechanical properties were determined. TR...
The frequent oil spillages and the industrial discharge of organic contaminants have not only created severe environmental and ecological crises, but also cause a risk of fire and explosion. These environmental and safety issues emphasize the urgent need for materials that possess superior sorption capability and less flammability and thus can effectively and safely clean up the floating oils a...
In this paper, a flame retardant dimethyl-2-(methacryloyloxyethyl) phosphate (DMMEP) was applied to wool fabrics by the graft copolymerization technique initiated with potassium persulfate (KPS) in water media. FTIR and SEM testing were used to explore the grafting evidence on the fiber surface, the SEM results show chemical deposition on the wool fiber surface and the scales could not be seen ...
This study investigated the effects of phosphorus fire retardants (FRs) in matrices from co-cured blends an unsaturated polyester (UP) with inherently fire-retardant phenolic resoles (PH) on mechanical and flammability properties resultant glass fibre-reinforced composites. Three different UP have been used: (i) ethanol soluble (PH-S), (ii) epoxy-functionalised (PH-Ep), (iii) allyl-functionalis...
Abstract This study focused on realizing fire retardancy for polymer composites by using a cellulosic biofiller and ammonium polyphosphate (APP). The motivation of this was based revealing the mechanism synergetic effect APP determining parameters required achieving V-0 rating in UL94 standard regardless kind system used. As matrix, polypropylene polylactic acid were flammability, burning behav...
at the first step cufe2o4 nanoparticles were synthesized by a fast and facile microwave method. the obtained nanoparticles and modified carbon nano tubes were added to poly styrene matrix. the products were characterized through fourier transform infrared spectroscopy, x-ray diffraction, and scanning electron microscopy. vibrating sample magnetometer shows nanoparticles exhibit ferromagnetic be...
Dropping fire retardants by helicopter can effectively reduce the intensity of wildfires. This study proposes a test plan for spraying different from bucket extinguisher. In this study, pure water, 10% Class AB flame retardant, 0.3% gel A and retardant + 0.6% guar gum were each added to extinguishing device sprayed on 4-layer, 6-layer, 12-layer wood cribs. The radiation intensity, mass loss, te...
Abstract The application of poly(lactic acid) (PLA) has been limited in flame-retardant field, and modification usually deteriorates its mechanical properties. In this study, a reactive hexa(ethylene oxide)-cyclotriphosphazene (HCCP-EP) was synthesized used to improve the fire retardancy PLA. As result, limiting oxygen index PLA increased from 19.5% 27.3% with an addition 3 wt% HCCP-EP, PLA/HCC...
With the improvement of people's living level, smart home and comfortable life put forward novel highly scientific requirements for building materials environment. Environmental protection, renewability, processing convenience use safety (non-toxic/fire safety) are all core indicators that need to be considered in an all-round way process material design. In this work, we used a simple efficien...
Battery safety has attracted considerable attention worldwide due to the rapid development of wearable electronics and steady increase in production use electric vehicles. As battery failures are often associated with mechanical-thermal coupled behaviors, protective shielding materials excellent mechanical robustness flame-retardant properties highly desired mitigate thermal runaway. However, m...
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