نتایج جستجو برای: fire retardancy

تعداد نتایج: 43235  

Journal: :Journal of physics 2023

Abstract The flame-retardancy of enamelled wires was studied by using a cone calorimeter. characteristic parameters including time to ignition, heat release rate, total smoke and so on, were obtained. effect radiation flux on the flame retardancy analyzed. results show that is related content different components in composite insulation layer. Polyimide have good retardant performance, followed...

Journal: :Composites Communications 2021

A series of recyclable epoxy resin (REP) composites are successfully prepared in this study, aiming to improve flame retardancy while keep good recyclability and mechanical properties. The commercial 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide (DOPO) with high reactive P-H bond is used as highly-efficient retardant work. Compared pure a limited oxygen index 21.7 % no rating vertical burn...

Journal: :Cellulose 2021

A novel N–P ammonium salt 1,3-propylene glycol diphosphate ester (APGDPE) flame retardant was tersely synthesized under solvent-free condition to lower cotton fabric fire hazard. The APGDPE structure characterized by 1H NMR, 13C 31P NMR and IR spectroscopy. reactive P = O(NH4+)2 PO(OH)2 groups of were successfully grafted into form P–O–C covalent bond. limiting oxygen indexes (LOI) treatment wi...

Journal: :Composites Part A-applied Science and Manufacturing 2022

Interfacial interaction played a crucial role in the performance of nanofiller-reinforced polymer composites. Here, an interface-engineered strategy was adopted to establish strong interfacial linkage between phosphorus-doped cerium oxide (P-CeO2) and EP via introducing polyaniline (PANI) coating, then endow composites with superb fire resistance. The as-prepared P-CeO2@PANI nanohybrids were ch...

Journal: :Journal of composites science 2021

Biopolymers with universal accessibility and inherent biodegradability can offer an appealing sustainable platform to supersede petroleum-based polymers. In this research, a hybrid system derived from cellulose nanocrystals (CNCs) zinc oxide (ZnO) nanoparticles was added into poly (lactic acid) (PLA) improve its mechanical, thermal, flame resistance properties. The ZnO-overlaid CNCs were prepar...

Journal: :Energies 2021

Valorization of industrial low-value side-streams are great interest, contributing to boosts in the circular economy. In this context, lignin pulp and paper industry were oxypropylated produce biobased polyols tested synthesis rigid polyurethane (RPU) foams. E. globulus lignins, namely a isolated from an Kraft black liquor depolymerized lignins obtained as by-products oxidation process, used. R...

Journal: :Journal of Thermal Analysis and Calorimetry 2023

Abstract Innovative, renewable and cost-effective porous composites were developed for integrating high fire safety antibacterial properties thermoplastic polymers. Sustainable carbon sheets from plum stones as fruits-by-products via single carbonization step affording dual environmental economic benefits. The as-developed own specific surface area of 165 m 2 g ?1 which is characteristic mesopo...

Journal: :Journal of Renewable Materials 2022

Although epoxy resin has been widely used in various fields, it still suffers from some problems including brittleness and flammability. In this study, a new phosphonic acid, N, N-bis(phosphomethyl) glycine (GDMP), was prepared by Mannich reaction with bio-based then novel layered zirconium phosphonate (ZrGDMP) synthesized using GDMP zirconyl chloride hydrate as reactants. The chemical structur...

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