نتایج جستجو برای: fire retardancy

تعداد نتایج: 43235  

Journal: :Periodica Polytechnica Chemical Engineering 2022

As polypropylene (PP) has no charring ability on its own due to the lack of hydroxyl functional groups, flame retardant system needs addition carbonizing agent in a relatively great amount. Ammonium-polyphosphate (APP), conventional additive was modified by microencapsulation with sorbitol-based bioepoxy resin shell create an intumescent enhanced for PP. The efficiency microencapsulated additiv...

درویشی, ابراهیم, شفیعی مطلق, مسعود, عزیزیان, فائزه, محمدفام, ایرج, مرتضایی, اکرم, گلمحمدی, رستم,

  Background & Objectives: Educational and research laboratories in universities have a high risk of fire, because they have a variety of materials and equipment. The aim of this study was to provide a technical plan for safety improvement in educational and research laboratories of a university based on the design of automatic detection, alarm, and extinguishing systems .   Method...

Forest fire models are generally used in different aspects of fire management and are helpful in understanding and prediction of fire behavior. Forest fires cause a significant damage for public property by destroying a large tract of forest.  This helps fire fighters to focus on an area with greater risk and to develop better substructure for fire fighter training and ultimately to plan fire-f...

Journal: :Journal of composites science 2021

This study proposes an innovative solution to flame-retard a sandwich composite made of unsaturated polyester resin, glass fibre skins and nonwoven core material. The strategy uses the material as flame-retardant carrier, while resin is also flame-retarded with aluminum trihydroxide (ATH). A screening fire-retardant performances materials, covered different types phosphorous additives (phosphat...

Journal: :Coatings 2023

Wood is a renewable material that has been widely utilized as indoor and outdoor construction decoration in our daily life. Although wood many advantages (i.e., light weight, high strength, low price easy machinability), it some drawbacks influence dimensional stability, cracking decay resistance real practical applications. To mitigate these issues, superhydrophobic surfaces have introduced to...

Journal: :Coatings 2021

Wood modification is now widely recognized as offering enhanced properties of wood and overcoming issues such dimensional instability biodegradability which affect natural wood. Typical systems use chemical modification, impregnation or thermal these vary in the achieved. As control understanding has progressed, further opportunities have arisen to add extra functionalities modified These inclu...

Journal: :Coatings 2022

Sustainable coating solutions that function as a fire retardant for wood are still challenging topic the academic and industrial sectors. In this study, composite coatings of casein protein mixed with mica aluminum trihydroxide (ATH) were tested retardants plywood; degradation retardancy performance assessed cone calorimeter, thermogravimeter was used thermal stability measurement. The results ...

Journal: :Advanced Powder Technology 2021

• A multifunctional additive (PDPO) was successfully synthesized. PDPO enhanced the flame retardancy and crystallization rate of PLA. effectively exerted inhibitory effect in vapor phase. PLA/PDPO biocomposites maintained satisfying mechanical properties. In engineering application area, it has always been a challenge to simultaneously improve flame-retardant performance polylactic acid (PLA) b...

افشین, اسدالله, امیر زاده, فرید, براتی, بهروز, داودیان طلب, امیرحسین, مشکانی, محسن, مفیدی, امیرعباس, پور احمد, سعیده,

Introduction: There are risk of fire accidents in Operating rooms during surgery. Experts estimate annually around 100 fire accidents occur in the operating rooms of United States’s hospitals. 10 to 20 of these accidents lead to severe injuries and about 1 to 2 lead to death. Despite such accidents rarely happen, but they can lead to serious injury or death of patients. .Material and Metho...

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