A5074301373- Flame retardant materials and properties
- Silicone and Siloxane Chemistry
- Synthesis and properties of polymers
- Advanced ceramic materials synthesis
- Polymer Nanocomposites and Properties
- Polymer composites and self-healing
- biodegradable polymer synthesis and properties
- Lignin and Wood Chemistry
- Fire dynamics and safety research
- Synthesis and characterization of novel inorganic/organometallic compounds
- Material Properties and Applications
- Electromagnetic wave absorption materials
- Epoxy Resin Curing Processes
- Magnesium Oxide Properties and Applications
- Natural Fiber Reinforced Composites
- Biological Activity of Diterpenoids and Biflavonoids
- Metal and Thin Film Mechanics
Beijing Institute of Technology
2015-2024
Abstract The flame‐retardant rigid polyurethane foam (RPUF) composites are fabricated by ammonium polyphosphate (APP) with pentaerythritol phosphate (PEPA), phenoxycycloposphazene (PCP), and aluminum diethylphosphinate (ADP), respectively, which labeled as RPUF‐1, RPUF‐2, RPUF‐3. influence of flame retardants on the apparent density compressive strength RPUF is studied. results reveal that not only improve density, but also composites. limiting oxygen index (LOI) these inorganic/organic...
The synergistic barrier effect of aluminum phosphate (AlPO4) on the char-formation behavior flame-retarded polypropylene (FR-PP) based ammonium polyphosphate (APP)/dipentaerythritol (DPER) system was investigated. flame-retardant property and combustion FR-PP studied by means limiting‑oxygen index, UL 94 vertical burning cone-calorimeter tests. Results indicate that partial replacement APP with AlPO4 in composites showed significant effects during combustion. interactions between were...
Abstract Polyhedral oligomeric silsesquioxane (POSS) is a hybrid material composed of an organic substituent shell and inorganic skeleton core. To study the influence different shells cage‐shaped cores on dielectric mechanical properties, four kinds epoxy resin composites (EPs) fabricated with 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO), DOPO‐containing polyhedral (DOPOPOSS), octaphenyl (OPS), phenyl (EPOSS) addition 5 10 wt% were prepared, respectively. The dispersion,...
With the depletion of petroleum resources, development biobased vinyl ester resins as an alternative to petroleum-derived inspires researchers. However, with good thermal-mechanical properties, flame retardancy, and smoke suppression is in its infancy. In this work, resin monomer (((oxybis(4,1-phenylene))bis(azaneylylidene))bis(methaneylylidene))bis(2-methoxy-4,1-phenylene)bis(2-methylacrylate) (OBBBMA) a Schiff base structure was prepared from renewable vanillin via two-step reaction. The...
The ladder phenyl/vinyl polysilsesquioxane (PhVPOSS) was used to improve the flame-retardancy performances of ethylene-vinyl acetate copolymer (EVA)/aluminum hydroxide (ATH) composites due reactivity its vinyl groups. FTIR, XPS, 1H NMR, and SEM-EDS data demonstrated PhVPOSS grafting onto EVA molecular chains. improved thermal stability EVA/ATH composites, as shown by thermogravimetric analysis (TGA). Furthermore, with cone calorimeter (CONE) experiments, EVA/ATH/PhVPOSS showed better fire...
Boron nitride (BN) has great potential to improve the thermal conductivity of polymers, and polyhedral oligomeric silsesquioxane (POSS) revealed ability prepare polymers with a low dielectric constant. Combining two abovementioned materials, an iron-containing assembly supported on hexagonal boron (FePOSS@hbno) was prepared via steps involving hydroxylation self-aggregation. The morphology nanohybrid FePOSS@hbno indicated that FePOSS successfully aggregated surfaces edges, which evidenced by...
Abstract As the application of polycarbonate (PC) in various fields continues to expand, requirements for its flame retardancy are becoming increasingly stringent. To enhance PC, employing multi‐element synergistic effects and developing novel retardants considered as vital strategies. This work introduces a blend 1,3‐Benzenedisulfonic acid dipotassium salt (KSP) three types phenyl polysiloxanes, namely Octaphenylcyclotetrasiloxane (P4), Octaphenylsilsesquioxane (OPS), ladder‐like...
A new synthetic non-halogen, flame-retardant cyclotriphosphazene containing the silicon functional group (APESP) was incorporated with ammonium polyphosphate (APP) to prepare flame-retarded polypropylene (PP). APESP/APP/PP composites were prepared by melt-blending and extrusion in a twin-screw extruder different loading levels of APESP. The combustion thermal behaviors investigated based on limiting oxygen index, UL-94, cone calorimeter test as well thermogravimetric analysis (TGA). Then,...