Licong Jiang

Wenzhou Medical University

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Lin Li

Qingdao University of Science and Technology

Shuai Zhao

Hubei University

Kai Huang

Chinese Academy of Sciences

Zhenxiang Xin

Qingdao University of Science and Technology

Weiliang Zhou

Nanjing University of Science and Technology

Leqin Xiao

Nanjing University of Science and Technology

Xiaolin Liu

Hohai University

Dinshaw J. Patel

Memorial Sloan Kettering Cancer Center

Xingfu Zheng

Guangxi Academy of Sciences

Xinlong Wang

Nanjing University of Science and Technology

Cooperative Institutions

Qingdao University of Science and Technology

Memorial Sloan Kettering Cancer Center

Chinese Academy of Medical Sciences & Peking Union Medical College

Shanghai Jiao Tong University

Nanjing University of Science and Technology

Chinese Academy of Sciences

Peking Union Medical College Hospital

Emory University

Northwestern Polytechnical University

University of Chinese Academy of Sciences

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Effective reinforcement of hydrogen‐bonding assembly silica‐graphene hybrid in natural rubber

Journal of Vinyl and Additive Technology (2020)

Licong Jiang Kai Huang Yuchao Wang Jingchao Wang Xingfu Zheng

Abstract Silica‐graphene hybrid (HGKS) with good dispersion and strong interfacial interactions was fabricated by hydrogenbonding assembly. HGKS was incorporated into natural rubber (NR) to develop high‐performance tire treads. During vulcanized process of HGKS filled NR (NR/HGKS), HGKS can participate in the process to form dual dynamic network structure. The interfacial interaction between HGKS and NR due to the dispersion of HGKS was investigated. The strong covalent interaction between NR and HGKS is the most important factor to determine the ultimate performance of rubber composites. In this contribution, a series of HGKS with different hybrid grafting ratio are prepared to reveal the effects of changes in filler surface properties on the structure and mechanical properties of rubber composites. It has been demonstrated that it is an effective hybrid technique to drastically improve its dispersibility in NR and form strong interfacial reactions, and HGKS is expected to be used as a new type of reinforcing filler for the manufacture of high‐performance green tire materials.

Filler (materials)

10.1002/vnl.21797

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Citations (8)

Extrusion‐printing additive manufacturing of composite solid propellant by fast curing isocyanated‐HTPB and HTPB blending‐extruded via a static mixer

Propellants Explosives Pyrotechnics (2024)

Liyuan Ren Licong Jiang Kang Chen Qirui Guo Leqin Xiao

Abstract This article studied a novel method for extrusion‐printing additive manufacturing (AM) of composite solid propellant by fast curing isocyanated‐HTPB and HTPB, which were blended and extruded via a static mixer. The gel time and tack‐free time of isocyanated‐HTPB with HTPB or diamines were extensively studied to screen for the potential formulation of extrusion‐printing. Upon the results of computational fluid dynamics simulation on the mixing effect of the static mixer, the formulation with 7 min gel time and 2.5 h tack‐free time was selected for extrusion‐printing experiment. The shape retaining characteristic of the formulations with 72 wt %, 75 wt %, 80 wt %, and 85 wt % solid content was qualitatively studied by printing the points, fibers, fiber arrays, and multilayer samples under fixed printing parameters, such as the slurry flux, the nozzle moving speed, and air pressure etc. The results showed that the curing rate and solid content play an important role in the free standing property of the slurry printed. A 3D sample with a complex geometric shape, which has 15 layers,18.5 mm in height, and 20.1 mm in outer diameter, was successfully extrusion‐printed by fast curing the slurry with the formulation of 85 wt % solid content. Its tensile strength and elongation at break are 0.33 MPa and 39.9 %, respectively. SEM observation showed that the internal morphology of the sample printed is dense and uniform. The results demonstrated that extrusion‐printing AM by fast curing two components is a potential candidate AM method for composite solid propellants with high solid content.

10.1002/prep.202400021

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Encapsulating montmorillonite and ammonium polyphosphate in one polyurea microcapsule to improve flame‐retardant and mechanical properties of polypropylene composites

Journal of Applied Polymer Science (2024)

Licong Jiang Liyuan Ren Yongsheng Zhang Weiliang Zhou Xinlong Wang

Abstract Ammonium polyphosphate (APP) and montmorillonite (MMT) have been widely used in the flame‐retardant of polypropylene (PP), but the low synergistic flame‐retardant efficiency and their poor compatibility with PP matrix need to be greatly improved. In this work, APP and MMT were encapsulated in the one microcapsule (PU@A‐M) at the determined optimal ratio through the “bridging” reactions of diethylenetriamine (DETA) with APP and MMT. Compared with the PP/A + M composites with the physical mixture of APP and MMT, the limiting oxygen index, peak of heat release rate, total heat release, and total smoke production of PP/PU@A‐M were decreased by 5.7%, 48.8%, 3.1%, and 20%, respectively. The well‐dispersed PU@A‐M with charring‐forming agent (CFA) generated continuous and compact char layers with COP, COSi, and SiOP crosslinking structure. Furthermore, the tensile strength and elongation at break of PP/PU@A‐M were enhanced by 4.8% and 36.9%, respectively, as compared with PP/A + M because of good dispersibility and compatibility of PU@A‐M in PP matrix.

Ammonium polyphosphate

Polyurea

Polypropylene

Polyphosphate

10.1002/app.56214

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Synergistic Fire Hazard Effect of a Multifunctional Flame Retardant in Building Insulation Expandable Polystyrene through a Simple Surface-Coating Method

ACS Omega (2020)

Lin Li Xiaoming Shao Zheng Zhao Xiaolin Liu Licong Jiang

This work reports a strategy based on γ-aminopropyltriethoxysilane (KH550) and graphene oxide (GO)-functionalized 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) to fabricate P–N–Si integrated flame retardant [KDOPO-modified GO (DGO)] through mild Mannich and Silanization reactions to overcome the challenge of single gas-phase fire retardancy of DOPO. DGO-based phenolic epoxy resin (DGO/PER) is manufactured and coated on the surface of expandable polystyrene (EPS) foam plates to achieve fire safety, which is used as the thermally insulating external wall in buildings and constructions. The DGO/PER paintcoat imparts high fire safety to the EPS foam plate, exhibiting a high limiting oxygen index value of 29%, and a UL-94 V-0 classification is achieved with only 300 μm of layer thickness compared with the DOPO/PER paintcoat. Meanwhile, all combustion parameters such as peak heat release rate, heat release rate, total heat release, smoke release rate, total smoke rate, and ignition time present excellent promotions for EPS@DGO compared with EPS@DOPO. These dramatically reduced fire hazards are mainly attributed to the synergistic effects of DGO. Meanwhile, the DGO/PER flame-retardant paintcoat cannot deteriorate the thermal insulation performance of the EPS foam plate.

Limiting oxygen index

Polystyrene

10.1021/acsomega.9b03541

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Citations (34)

Prevalence of work hour alcohol use and associated factors among psychiatrists in China.

PubMed (2024)

Licong Jiang Elizabeth F. McCord Huanzhong Liu Yuanli Liu Feng Jiang

Since 2012, work-hour alcohol use (WHAU) has been prohibited in China. However, there is a lack of national data on WHAU among healthcare workers, including psychiatrists.

10.1093/alcalc/agae058

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Improving the flame retardancy, smoke suppression and mechanical properties of polyurethane using novel organic–inorganic hybrid composite microspheres of zirconium modified phenolic resin and montmorillonite

Chemical Engineering Journal (2025)

Licong Jiang Liyuan Ren Yongsheng Zhang Weiliang Zhou Xinlong Wang

10.1016/j.cej.2025.160727

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Synergistic effects of a highly effective intumescent flame retardant based on tannic acid functionalized graphene on the flame retardancy and smoke suppression properties of natural rubber

Composites Part A Applied Science and Manufacturing (2019)

Lin Li Xiaolin Liu Xiaoming Shao Licong Jiang Kai Huang

Intumescent

Ammonium polyphosphate

Cone calorimeter

Tannic acid

10.1016/j.compositesa.2019.105715

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Citations (74)

Structure, recognition and adaptive binding in RNA aptamer complexes

Journal of Molecular Biology (1997)

Dinshaw J. Patel Asif K Suri Feng Jiang Licong Jiang Pei Fan

Aptamer

Riboswitch

Molecular Recognition

Nucleic acid structure

10.1006/jmbi.1997.1281

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Citations (289)

Improving the flame retardancy efficiency and mechanical properties of the intumescent flame retarded low‐density polyethylene by the dual actions of polyurea microencapsulation and aluminum hypophosphite

Journal of Applied Polymer Science (2023)

Licong Jiang Ming Gao Leqin Xiao Xinlong Wang Weiliang Zhou

Abstract The use of intumescent flame retardants to retard polyethylene usually had the disadvantages of low flame retardancy efficiency and poor compatibility between intumescent flame retardants and low‐density polyethylene (LDPE), which led to the reduction of mechanical properties of materials. In order to solve these issues, the microencapsulated ammonium polyphosphate (MAPP) and microencapsulated aluminum hypophosphite (MAHP) with polyurea were prepared through the interfacial polymerization of water‐in‐oil (W/O) microemulsions. The flame retarded polyethylene composites with MAPP and MAHP were manufactured. The LDPE composites with 17.3 wt% of MAPP and 3.9 wt% of MAHP possessed a LOI value of 27.3% and achieved the V‐0 standard. The PHRR and THR were remarkably decreased by 30.3% and 31.1% compared with that of the LDPE. Furthermore, the tensile strength of LDPE/MAPP‐MAHP was 19.1% higher than that of LDPE/APP‐AHP because of good dispersion and compatibility of MAPP and MAHP with LDPE. This work provides a new method to prepare flame‐retardant LDPE with high performance and the related mechanisms were discussed in detail.

Low-density polyethylene

Intumescent

Polyurea

10.1002/app.53589

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Citations (11)

A facile strategy to fabricate intumescent fire-retardant and smoke suppression protective coatings for natural rubber

Polymer Testing (2020)

Lin Li Xiaolin Liu Kai Huang Yuchao Wang Xingfu Zheng

Intumescent

Melamine resin

10.1016/j.polymertesting.2020.106689

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Citations (13)