Lei Song

Lei Song
University of Science and Technology of China | USTC · State Key Laboratory of Fire Science

About

467
Publications
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Publications

Publications (467)
Article
Full-text available
Phosphorus–nitrogen–silicon-containing coatings consisting of tris(hydroxymethyl)phosphine oxide (THPO), 3,5-diamino-1,2,4-triazole (guanazole), and polydimethylsiloxane (PDMS) were prepared via a simple spraying deposition technique and applied to the cotton fabric to impart flame retardancy and hydrophobicity. SEM image reveals that THPO/Guanazol...
Article
The severe light reflection phenomenon has become a critical challenge for the sufficient utilization of solar energy. For preventing the predation risk, cicada’s wings are gradually evolved into transparent morphology to preferably blend into the natural environment. The high solar transmittance in cicada wings is due to the presence of surface mi...
Article
Devoting to coping with safety risk spreading with polymers, this work achieves dramatic synergistic improvements in composite toughness, photothermal healing, and fire safety through a novel targeted modification strategy for black phosphorus (BP). In detail, we herein use the emerging 2D BP as a template for in-situ growth by covalent triazine fr...
Article
In this study, adenine was used as an efficient adsorbent for in situ removal of zinc ions, resulting in the formation of a bio-based metal-organic framework (bioMOF). The as-prepared bioMOF was further used as flame retardant additives to prepare fire-safe polymers. TGA results indicated that the bioMOF can improve the char yield in the EP composi...
Article
Developing high-performance polymer materials with excellent mechanical properties and fire safety in fires remains a thorny challenge. In this article, hierarchical structure [email protected] nanotubes ([email protected]) are prepared through electrostatic interactions for enhancing the interfacial engineering of thermoplastic polyurethane (TPU)....
Article
Full-text available
A high content of flame retardant in non‐combustible electrolytes leads to deterioration of the electrochemical performance of lithium‐ion batteries (LIBs). Besides, fire hazard of most non‐flammable electrolytes is studied in coin cell, for which it is impossible to reveal real performance. Thus, the stable interfacial, phosphorus‐fixed nonflammab...
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Design novel flame retardant and mechanical enhancing agents of waterborne polyurethane (WPU) is a crucial issue for expanding its application. Herein, [email protected]2 hybrids was designed and prepared to enhance the fire safety and mechanical properties of WPU and [email protected]2 possessed a novel cactus-like structure. [email protected]2 wa...
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Epoxy resin (EP) has two shortcomings: flammability and brittleness. Previous studies have improved brittleness or flame retardancy but they will compromise the glass transition temperature (Tg) and thermal stability. Herein, a novel DOPO based phosphorus-, nitrogen- and sulfur-co-contained macromolecular flame retardant (DOPONH2-S) was synthesized...
Article
To solve the increasing serious electromagnetic radiation pollution and limitations of metal-based electromagnetic shielding materials in flexible devices, the polyaniline (PANI) is deposited on the surface of two-dimensional Ti3C2 to obtain the Ti3C2@PANI hybrid for constructing waterborne polyurethane (WPU) composite. Meanwhile, to address the fl...
Article
In comparison with the thermal hazard of polymers, noxious smoke and gas produced by the combustion of polymers make the environment self-purification a huge challenge. As a new type of a highly effective flame retardant, black phosphorus (BP) can effectively decrease the thermal hazard of polymers, but its performances in smoke suppression and tox...
Article
Lithium-Sulfur (Li-S) battery is a potential alternative energy storage system owing to its high theoretical capacity, low cost, and eco-friendly features. However, the commercialization of Li-S battery has been hindered by the notorious “shuttle effect”. To overcome the above-mentioned long-standing problem, herein, an advanced separator modified...
Article
Malignant tumors, particularly those located in deep tissues, have always been a grievous threat to human health. Sonodynamic therapy (SDT) has recently attracted great attention due to deep tissue penetration. However, the lack of effective sonosensitizers and the poor therapeutic efficacy severely limit their wider use. Herein, dual-functionalize...
Article
Full-text available
Polycarbonate (PC) is highly attractive for applications in high-speed railways and airplanes as engineering materials, but suffers from high fire hazards with severe melting dripping during burning. To overcome the challenge, highly effective flame retardants, such as sulfonate derivatives and silicon-based compounds have been developed. Unfortuna...
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Severe flame retardancy and poor impact resistance of epoxy resins (EPs) have become key factors limiting its industrial application. Herein, we develop a strategy to integrate nitrogen‐rich black phosphorus (BP) loading with cerium oxide via aryl diazonium chemistry to reduce the flame risk of the EPs. Cone test results exhibit that the fire hazar...
Article
To tailor the enhancement strategies for polymers according to structure, inspired by the concept of “Cannikin's Law”, this work proposes and exemplifies a novel strategy for reinforcing the carbonate linkages to simultaneously improve the thermal and fire safety of polycarbonate (PC). Herein, we introduce MIL-53(Al) to functionalize black phosphor...
Article
A multifunctional polyurethane film (PU) with superior electromagnetic shielding performance, joule heating performance, thermal conductivity and flame retardancy has been carefully designed. The ammonium polyphosphate (APP) wrapped with conductive MXene (MAPP) is prepared by microencapsulation technology and added in PU solution for enhancing the...
Article
With the advent of the 5G era, preparing conductive polymers to accomplish electromagnetic interference (EMI) shielding, mechanical enhancement, and flame retardancy are of vital importance. Graphite felt (GF) acts as a three-dimensional structure and organophosphorus derivatives containing different valences work as a flame retardant to form a nov...
Article
A novel carbon fiber/MXene coalition (CF-Ar-MXene) is synthesized via a bidirectional aryl diazonium chemistry method using p-phenylenediamine as a chemical bridge, which effectively combines the two materials with different dimensions and makes full use of the advantages of both. CF-Ar-MXene coalition materials achieve high surface roughness and r...
Article
Reducing the fire hazards caused by high power electromagnetic (EM) waves and maintaining operational status of EM interference (EMI) shielding devices in harsh environments have caught increasing eyesight. In this paper, a series of promising EMI shielding materials with mussel byssus-inspired structure are accomplished via an efficient vacuum-ass...
Article
Owing to poor flame retardant efficiency and compatibility of traditional flame retardants, it is difficult to prepare unsaturated polyester resins (UPR) composites with excellent flame retardant properties. In this research, novel glycerol-based polymeric flame retardants (PCH3PG, PBPG and POPG) were synthesized. The effect of different side chain...
Article
Human health is being seriously harmed by tumors. In order to obtain excellent anti-tumor effects, platinum (Pt) nanozyme-modified black phosphorus (BP) loading with L-Arginine (LArg) (BPPL) is prepared to realize nitric oxide (NO) therapy and sonodynamic therapy (SDT), achieving a synergistic effect to therapy. In this system, BP is utilized as th...
Article
SiO2@[email protected] and SiO2@[email protected]2O3 are prepared in this study. Then SiO2 and its hybrids are incorporated into PS through solution blending method. The thermal stability, mechanical performance, combustion performance and smoke density of PS and its nanocomposite are investigated. The temperature at 5 wt% weight loss and the maxim...
Article
Benzoxazines have attracted wide attention from academics all over the world because of their unique properties. However, most of the production and preparation of benzoxazine resins depends on petroleum resources now, especially bisphenol A-based benzoxazine. Therefore, owing to the environmental impacts, the development of bio-based benzoxazines...
Article
An eco-friendly and bio-based ternary hybrid gel consisting of alginate, sepiolite, and ammonium polyphosphate (APP) was fabricated via a facile one-pot method. Rheological tests showed that this ternary hybrid hydrogel exhibited shear-thinning behavior. Firefighting experiments showed that a burning cotton bale extinguished by using water re-ignit...
Article
Inspired by the structure and good thermal resistance of cell walls in plants, we herein develop a life-cycle safe multifunctional nanocomposite of polycarbonate/black phosphorus-boron nanohybrid (PC/BP-B) with properties of photothermal-healing,...
Article
Polyamide textiles with multi-functional properties have received a huge attention in the technical textile field due to their excellent physical properties; however, their easy ignition and relatively hydrophobic nature quench their potential application. Thus, in this work, bi-functional polyamide 66 (PA66) textiles with improved flame retardant...
Article
To expand the application and the added value of rare earth compounds, it was utilized to enhance fire safety of flexible polyurethane foam (FPUF) in furniture field. La2Sn2O7 with pyrochlore structure was utilized to wrap ammonium polyphosphate (APP), forming a novel core-shell structure compound (LAPP) and used in FPUF. Compared to pure FPUF, the...
Article
Conductive polymer composites have been caught increasing attentions in electromagnetic interference (EMI) shielding field. Due to the flammability of polymer and long-term high power working status, fire incidents on environment and human health must be taken into consideration during the preparation of the polymer materials. Thus, developing an E...
Article
Background Eco-friendly thermally insulating cellulose aerogels made from environmentally friendly resources are very attractive in materials chemistry, but the high flammability limits their application. Method Herein, a novel phosphorus-containing flame retardant modifying agent (DOPO-IA) was incorporated into the cellulose nanofiber aerogel and...
Article
The low exfoliation yield and large solvents consumption have become the major issue that limits the commercial application of two-dimensional nanomaterials. Emerging as an effective and environmentally friendly approach, electrochemical exfoliation has been attached by extensive concern. Hence, a simple and environmentally friendly two-electrode e...
Article
This work was intended to clarify if the dyeing treatment could modify the functional properties of white substrate as well as the surface finishing would alter the initial color of dyed textiles. Thus, in this work, a kind of surface coating was applied to modify the flame retardant and hydrophilic properties of both the undyed (white) and dyed po...
Article
The development of electronics proposes higher requirements for flexible, transparent, and conductive materials with high electromagnetic shielding performance in viewing windows. Flexible transparent films have been fabricated by collaborating one-dimensional silver nanowires (AgNWs) and novel two-dimensional Ti3C2Tx MXene sheets on PET films with...
Article
In recent years, developing high performance thermosetting nanocomposites has attracted wide-ranging research attention. As a rising two-dimensional material, MXene still confront the intrinsic weakness for preparing epoxy resin with superior comprehensive performance. Inspired by the overlap architecture of placoid scale, an in-situ growth techniq...
Article
Biodegradable poly-(lactide-coε-caprolactone) (PLCL) scaffolds have opened new perspectives for tissue engineering due to their nontoxic and fascinating functionality. Herein, a black phosphorus-based biodegradable material with a combination of promising enhanced hydrophilicity, shape recovery and osteodifferentiation properties was proposed. Firs...
Article
Improving resilience, enhancing fire safety and adsorption properties were the key points for the preparation of high-performance flexible polyurethane foam (FPUF). Here, MOF-derived petal-like Co/Mg-double metal hydroxide (Co/Mg-LDH) and 3-aminopropyltriethoxysilane (APTES) were selected to modify the hydroxylated boron nitride (BNNS-OH) to obtain...
Article
The thermal decomposition behaviors of corn and its main components have been investigated by applying thermogravimetric analyzer (TGA) under nitrogen atmosphere. As two different simulation methods, the GA (Genetic Algorithm)-based parallel reaction model and linear combination model are proposed in the study, both of which show good agreement wit...
Article
Full-text available
Cellulose as a bio-based material has attracted increasing attention due to its excellent properties. However, cellulose is very flammable and it is necessary to impart flame retardancy to cellulose nanofiber (CNF) foams. In this work, phytic acid (PA)-guanazole (GZ)-CNF composite foams were prepared by a simple freeze-drying method. SEM images ind...
Article
Eco-friendly carbon-based anodes are highly attractive for use as anode materials in lithium-ion batteries because of their accessibility, high conductivity, and satisfactory storage capacity. However, to date, the carbon anodes reported in literature exhibit low capacity, poor cycling stability, and cannot meet the current increasing demands for m...
Article
The progress of super-robust, high ductile polymeric nanocomposite with superior safety have been caught increasing eyesight for the application in electronic products. In this article, strontium hydroxystannate (SSO) nanorods were in-situ fabricated on the surface of titanium carbide (Ti3C2Tx) MXene nanosheets (MSSO) for improving fire safety and...
Article
Polyolefin (PO) cables used in confined spaces need to have low smoke, low heat release, low toxic gas release and excellent physical properties. In this work, a series of rare earth stannates Re2Sn2O7 (RES, Re=Nd, Sm, Gd) with high temperature catalytic performance were prepared by hydrothermal method for synergistic flame retardant PO/IFR. The fl...
Article
Flexible polyurethane foam (FPUF) is the most used polyurethane, but the highly flammable characteristic limits its widespread usage. In this work, [email protected]3C2Tx was synthesized to reduce the heat and toxic gases of FPUF. Flame-retardant FPUF was characterized by cone calorimeter (Cone), thermogravimetric analysis/fourier-transform infrare...
Article
The three main fatal factors considered when thermoplastic polyurethane (TPU) products catch fire are massive heat radiation, suffocation by smoke inhalation, and poisoning by toxic gases (CO and HCN). In this study, to weaken these adverse impacts, soybean root-like zeolitic imidazolate frameworks (ZIFs)-derived carbon nanotubes/bimetallic oxides...
Article
Black phosphorus (BP), as a promising star of two-dimensional (2D) van der Waals family, has attracted extensive attention for its characteristic dimension effects, mechanical properties and thermal stability. Herein, we report a facile strategy of integrating aryl diazonium modified few Layer black phosphorus with loading of ultrafine yttrium oxid...
Article
Owing to the lack of research on structure-activity relationship and interaction mechanism between unsaturated polyester resins (UPR) and flame retardants, it has been a big challenge to prepare high-efficiency flame retardants for UPR in industry. In this research, to explore structural rules of high-efficiency flame retardants, several polymeric...
Article
As one of the most used polyurethane, flexible polyurethane foam (FPUF) still confronted highly flammable problems. However, current flame retardant employed in FPUF deteriorated the other utilization performances, such as mechanical properties. In this work, cerium stannate decorated graphene nanosheets (GNS@Ce2Sn2O7, GCSO) was prepared to fabrica...
Article
In recent years, more and more research enthusiasm has been devoted to the development of emerging two‐dimensional (2D) monoelement materials (Xenes) and explored potential applications in various fields, especially biomedicine and bioimaging. The inspiring results attribute to their excellent physicochemical properties, including adjustable band g...
Article
To overcome the flammability and brittleness of DGEBA, cardanol was selected to synthesize bio-based epoxy in this work because of its unique structure with both rigid aromatic rings and flexible long fatty chains. A novel intrinsically anti-flammable and self-toughened cardanol-derived novolac epoxy was synthesized through condensation, phosphoryl...
Article
Nowadays, the organic pollutants and oil contaminations caused by petroleum exploitation, industrial discharge, and sanitary wastewater are aggravating the water shortage, becoming a global problem. Even though a great number of advanced materials have been developed and devoted to solving these problems, the materials reported recently are usually...
Article
As a new nano flame retardant, black phosphorus (BP) is easy to degrade and oxidize in the presence of water and oxygen, especially in the case of light, this process will be accelerated. In order to delay the oxidative degradation of BP and maintain its structure stability and flame retardant properties, the light stabilizer, free radical quenchin...
Article
Epoxy resins (EP) are deemed as one kind of most commonly used thermosets, but immanently suffer from inflammability and brittleness. Herein, we report a newly designed hierarchical molybdenum diselenide (MoSe2) nanotubes assembled from several-layered nanosheets, and then merged with linear polyphosphazene (LPP) for constructing LPP-MoSe2 hybrids....
Article
In this work, an organic-inorganic flame retardant composite system was utilized by combining the renewable cardanol-based flame-retardant toughening agent (CF-PO(OPh)2) and the core-shell SiO2@MOF particle, then a series of high-performance epoxy composites with simultaneously enhanced mechanical properties, fire safety as well as smoke suppressio...
Article
A carbohydrate compound originated from plant species, namely oxidized sucrose (OS) was used as a cross-linking agent to stabilize the layer by layer (LbL) deposited flame retardant coatings developed onto the polyamide 66 textile surfaces. Here, the coating was constructed using some polyelectrolytes like chitosan (CS), sodium alginate (SA), phyti...
Article
Nowadays, highly flexible, ultrathin, and conductive polymer composites are exceptionally desirable for electromagnetic interference shielding (EMI) applications due to their unique mechanical strength and electrical and flame-resistant properties. While the traditional nanocomposites blending remains the mainstream method to fabricate polymer/inor...
Article
Metal-organic frameworks (MOFs) have been widely used to improve fire safeties of polymers as burgeoning flame retardants. There is no report about the influence of MOFs' compositions on enhancing fire safety of polymers. This work synthesized 9 pristine MOFs, including 3 MOFs with 1,3,5-tricarboxylic acid as organic ligands, which were added into...
Article
Based on electrochemical exfoliation route, a simplified one-pot approach was put forward to obtain hydroxyapatite-functionalized graphene ([email protected]), as a multifunctional nanomaterial. The disappearance of characteristic peaks in XRD results and the microstructure morphology observed by electron microscope observation directly confirmed t...
Article
As a typical aerospace advanced resin-based material, the high brittleness and poor fire safety performance of bismaleimide resin (BMI) has been the key factor restricting its further development. Therefore, two star-shaped allyl functionalized phosphazene small molecules (HMACP, HECP) were designed and synthesized utilizing the nucleophilic substi...
Article
With the population increasing and industrialization developing, the high demand for clean water has become a major issue that should be meet. In particular, leak of oils and organic solvents, discharge of wastewater put greater pressure on water resource. Hence, the effective and environment-friendly treatment method for the wastewater has receive...
Article
Flexible polyurethane foam (FPUF) has been considered as an excellent material in many fields, such as furniture and electromagnetic interference (EMI) shielding products due to its lightweight and flexibility. However, there is a severe fire hazard problem for FPUF that makes it unsuitable to be used in practical. Herein, a facile method was to pr...
Article
Incorporating flame retardant fillers is the most efficient way to improve the fire resistance of polylactide (PLA). However, most flame retardant fillers result in deterioration of the mechanical property of PLA so far. Therefore, to create high-performance PLA materials combining excellent flame retardancy with superior mechanical properties rema...
Article
Fire resistant coatings have been proven as an efficient way to improve fire safety in three aspects: reducing the Heat Release Rate (HRR), delaying the ignition time and preventing heat transfer. Herein, a SiO2 based polymeric composite coating with a lower thermal conductivity and brilliant fire resistance was developed. Isocyanate and sodium sil...
Article
The high fire safety of polymer nanocomposites is being pursued by research institutions around the world. In addition to intrinsic flame retardancy strategy, the additive-type flame retardants have attracted increasing attention due to low commercial cost and easy fabrication craft. However, traditional additive-type flame retardants usually need...
Article
Presently, flammability and brittleness are two major problems for EP which has restricted its development and application in industrial. Under the global advocacy of green and sustainable development, developing bio-based flame-retardant and toughening agents which can endow epoxy resins with high fire resistance and satisfactory mechanical proper...
Article
In this work, we have successfully prepared a novel separator modified with N, S co-doped carbon framework (named NSPCF) with confined CoS2 nanoparticles and rooted carbon nanotubes material (named [email protected]2) to apply for high-performance Lithium-Sulfur batteries (Li-S batteries). Robust carbon structure with large specific surface can act...
Article
Metal-organic flame retardants (MOFRs) have been constantly applied to enhance fire safety of polymers. Metallic compounds positively improve the MOFRs’ performance in suppressing smoke and toxic gases emissions during combustion of polymers. While organics endow MOFRs with the possibility of high efficiency and excellent compatibility. Based on th...
Article
Although more and more attention has been paid to electromagnetic interference (EMI) shielding fabric materials due to increasing electromagnetic waves pollution, little attention to their fire safety behavior and durability in practical use. Herein, durable EMI shielding ramie fabric with flame retardant and self-healing performance were fabricate...