A5082341738- Polymer composites and self-healing
- biodegradable polymer synthesis and properties
- Advanced Sensor and Energy Harvesting Materials
- Silicone and Siloxane Chemistry
- Polymer Nanocomposites and Properties
- Carbon dioxide utilization in catalysis
- Surface Modification and Superhydrophobicity
- Synthesis and properties of polymers
- Epoxy Resin Curing Processes
- Conducting polymers and applications
- Polymer crystallization and properties
- Photochromic and Fluorescence Chemistry
- Flame retardant materials and properties
- Polymer Surface Interaction Studies
- Luminescence and Fluorescent Materials
- Supercapacitor Materials and Fabrication
- Aerogels and thermal insulation
- Polymer Foaming and Composites
- Hydrogels: synthesis, properties, applications
- Electrospun Nanofibers in Biomedical Applications
- Dielectric materials and actuators
- Thermal properties of materials
- Dendrimers and Hyperbranched Polymers
- Electrocatalysts for Energy Conversion
- Synthetic Organic Chemistry Methods
China Academy of Engineering Physics
2014-2024
Southwest University of Science and Technology
2020-2024
Southwest Petroleum University
2022
Mianyang Normal University
2014-2020
Chinese Academy of Sciences
2005-2014
Shanghai Institute of Technical Physics
2014
Chengdu Organic Chemicals (China)
2005-2006
Vitrimers make up a class of polymeric materials combining the advantages thermosets and thermoplastics, because they can be reprocessed while being at same time permanently cross-linked. However, long heating duration or an elevated temperature is necessary for most vitrimers to relax stress from deformation exhibit malleability. Herein, disulfide-containing carboxylic acid applied as curing agent synthesize epoxy with simultaneous disulfide metathesis carboxylate transesterification. The...
Abstract Polylactide (PLA) composites with various talc content were prepared by melt extrusion. The thermal, dynamic mechanical, tensile and flexural properties, fracture surface morphologies of neat PLA PLA/talc investigated compared. results showed that had significant nucleation effect the cold crystallization temperature decreased concentration. thermal degradation heat distortion slightly enhanced compounding talc. Talc reinforcing toughening effects on PLA, strength, strength modulus...
Vitrimer materials that obscure the line between ″thermoset″ and ″thermoplastic″ have already attracted a great deal of interest since they exhibit dynamic properties stress relaxation or reprocessability without losing their permanently cross-linked networks. While much research has been aimed at developing new exchangeable bonds to broaden scope, there is dearth effort in exploring key factors influence vitrimer materials. These explorations are not only useful exact design synthesis but...
To meet the demand of sustainable development, epoxy vitrimers based on dynamic transesterification reaction (DTER) have received considerable attention recently due to their reprocessability and repairability. However, they suffer from low mechanical strength rely heavily external catalysts ensure curing repair. Herein, we report a facile design novel ZnAl-LDH-catalyzed vitrimer nanocomposite via introducing ZnAl-layered double metal hydroxide (ZnAl-LDH) nanosheets. Our results show that...
Layered double hydroxides (LDHs), as an effective oxygen evolution reaction (OER) electrocatalyst, face many challenges in practical applications. The main obstacle is that bulk materials limit the exposure of active sites. At same time, poor conductivity LDHs also important factor. Exfoliation one most direct and strategies to increase electrocatalytic properties LDHs, leading However, developing efficient exfoliation strategy exfoliate into stable monolayer nanosheets still challenging....
A co-coordinated PDMS@PET fabric exhibited high oil/water separation performance and rapid self-healing at room temperature.
Abstract Summary: A well‐dispersed gold nanoparticle/poly( N ‐isopropylacrylamide) (PNIPAm) hydrogel nanocomposite with thermoswitchable electrical properties is prepared by the copolymerization of functional Au nanoparticles ‐isopropylacrylamide. It found that conductivity changes two orders magnitude at moderate temperature ( T tran ) upon stimuli. The change reversible during a heating and cooling cycle. Schematic illustration mechanism thermo‐switchable electronic nanoparticle/PNIPAm...
Abstract A series of the reinforced and toughened polylactide (PLA) composites with different content basalt fibers (BF) were prepared by twin screw extruder. The toughness BF/PLA composite s was improved further addition polyoxyethylene grafted maleic anhydride (POE‐ g ‐MAH), ethylene–propylene–diene rubber (EPDM‐ ethylene‐acrylate‐glycidyl methacrylate copolymer (EAGMA), relatively. mechanical properties, rheology, crystallization, morphology studied. results showed that fiber had...
Polyvinylidene fluoride homopolymer thin films have been prepared by the Langmuir-Blodgett technique, and their electrical properties comprehensively studied. The polyvinylidene show better ferroelectricity with higher polarization breakdown electric field than that of poly(vinylidene fluoride-trifluoroethylene) copolymer films. Inspection on thickness dependence coercive suggests an extrinsic switching occurs in range from 200 to 45 nm, a non-extrinsic is observed between 11 which ascribed...
To our knowledge, study has yielded that biological carbon sequestration is the use of photosynthesis plants to improve ecological. The purpose present was investigate Research progress plant available in earth's cycle. One way overcome these problems can fix dioxide as they grow through photosynthesis, and soil sequester decomposed biomass. This demonstrated a number studies showed there are four mechanisms affect sink terrestrial ecosystems, namely climate change, CO2 fertilization,...
Improvements in the toughness and thermal properties without affecting other mechanical hyperbranched polyurethane modified epoxy were demonstrated.
Mechanochromic polymers exhibit potential applications in damage reporting and stress sensing. Despite the rapid progress achieved recent years, mechanochromic structural polymers, such as epoxy thermosets, remain difficult to develop, let alone materials that can distinguish different levels of by a visual color change. This work presents new class multicolor thermosets discriminate between low high compressive stresses via incorporation two distinct mechanophores. Amino-functionalized...
A well-dispersed gold nanoparticle–poly-N-isopropylacrylamide (PNIPAm) hydrogel composite with thermo-switchable electrical properties was prepared by the co-polymerization of Au nanoparticles attached vinyl groups NIPAm. The and are characterized TEM, UV-Vis, FTIR, NMR. At same time, conductivity, cyclic voltammetry constant-pontential technique were used to demonstrate composite. It found that show a tunable property changing temperature conductivity changes two orders magnitude at...