A5066197775- Polymer crystallization and properties
- Polymer Nanocomposites and Properties
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- biodegradable polymer synthesis and properties
- Injection Molding Process and Properties
- Polymer Foaming and Composites
- Additive Manufacturing and 3D Printing Technologies
- Carbon Nanotubes in Composites
- Natural Fiber Reinforced Composites
- Thermal properties of materials
- Dielectric materials and actuators
- MXene and MAX Phase Materials
- Phase Change Materials Research
- Electromagnetic wave absorption materials
- Nanocluster Synthesis and Applications
- Composite Material Mechanics
- Rheology and Fluid Dynamics Studies
- Polymer Nanocomposite Synthesis and Irradiation
- Carbon and Quantum Dots Applications
- Luminescence and Fluorescent Materials
- Advanced Thermoelectric Materials and Devices
- Remote Sensing and Land Use
- Materials Engineering and Processing
- Advanced Measurement and Metrology Techniques
Shaanxi University of Technology
2019-2025
Sichuan Agricultural University
2019-2021
Sichuan University
2015-2018
Ingenierie des Materiaux polymeres
2015-2016
Chengdu University
2015-2016
Ningbo University of Technology
2015
The orientation and dispersion of nanoparticles can greatly influence the conductivity mechanical properties nanocomposites. In this study, Polypropylene/ Carbon Nanotubes (PP/CNTs) nanocomposites were produced using three different molding methods, i.e., compression (CM), conventional injection (IM), interval (IntM). Various CNTs content shear conditions give states. Then, electrical percolation thresholds (4 wt.% CM, 6 IM, 9 IntM) obtained by various orientations. Agglomerate (Adis),...
Volume resistivity of epoxy composites containing various fillers and amounts filler particles.
A simple method is reported to increase the thermal conductivity and improve poor mechanical properties caused by high filler loadings of epoxy composites, simultaneously. Epoxy composites were prepared with micro-boron nitride (BN) silicon carbon whisker (SiCw) chemically treated 3-aminopropyltriethoxysilane (KH550) 3-glycidyloxypropyltrimethoxysilane (KH560), respectively. Effects surface modification BN particles on flexural strength epoxy/BN investigated. About 3% SiCw grafted KH560...
Abstract To reveal a relationship among crystallization, conductivity and electromagnetic shielding properties of full biodegradable polymer after ultraviolet (UV) aging, polybutylene succinate (PBS)‐based composites with different weight ratios multi‐wall carbon nanotubes (MWCNTs)/polylactic acid (PLA) /PBS masterbatch were processed via melt‐compounding approach. Morphology the MWCNTs/PLA/PBS prepared by Pickering emulsion method was confirmed scanning electron microscope (SEM)...
Abstract Granular polypropylene (PP) and carbon nanotube (CNT) masterbatch are melt‐mixed printed using a custom‐built screw extrusion printer. Compared to the conventional printer (CSP), shear (SSP) with element at end of screw, can apply higher stress melt. Meanwhile, SSP has wider speed match printing speed, is positively correlated stress. The promote dispersion CNTs, thus improving tensile strength. However, circumferential inside superimposed on linear nozzle, makes warping deformation...
The morphological development of iPP in presence an <italic>in situ</italic> microfibrillar network and a β-nucleating agent under micro-injection molding.
Abstract In this study, the associations between structural evolution and physical properties of polypropylene/poly(ethylene‐co‐octene)/multiwalled carbon nanotube (PP/POE/MWCNTs) composites were established. The MWCNTs particles preferentially migrating from PP matrix to disperse in POE phase, which contributed a richer network structure, thus resulting significant improvement for electrical conductivity, as well thermal stability, toughness property with elongation at break 300% 800%....
The morphological structure and crystallization behavior of in situ poly(ethylene terephthalate) (PET)/isotactic polypropylene (iPP) microparts prepared through micro‐injection molding are investigated using a polarized light microscope, differential scanning calorimeter, electron two‐dimensional wide‐angle X‐ray. Results indicate that both the shear effect addition PET fibers greatly influence morphologies iPP matrix. Typical “skin‐core” oriented crystalline structures (shish‐kebab) may...
In this work, the effects of mold and melt temperatures on microstructures properties micropart were systematically investigated. Results showed that remarkably enhanced flow field generated during microinjection molding process proved to be beneficial in forming highly oriented self-fibrillating structures. addition, especially blends, changing from 200 °C 270 significantly onset crystallization temperature To (Δt = 4.8 °C), peak 1.5 half-time (∼18.6 s). Interestingly, because orientation...
Long chain branches (LCB) are successfully grafted to linear poly(lactic acid) (PLA) using functional group reactions with pentaerythritol triacrylate (PETA) and tetraethylthiuram disulfide (TETDS). Results show a high branching degree of PLA (∼49.5%) can be effectively obtained adding only 1 wt % PETA, contributing remarkably enhancing strain hardening. The density the nuclei formed during nonisothermal crystallization for LCB-PLA samples is markedly increased contrasted PLA, resulting in...
Abstract In this work, the synergistic effect of using multiwalled carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) to regulate temperature response electrical conductivity ( σ ) for poly(lactic acid) (PLA) composites were reported. The addition CNTs into PLA/GNPs markedly enhanced their crystallization capacity , resulting in a reduction percolation threshold from 2.87 (for PLA/GNPs) 0.39 wt% PLA/GNPs/CNTs), which is attributed formation three‐dimensional conductive network within...
Ag-doped ZnO nanorods growth on a PET-graphene substrate (Ag-ZnO/PET-GR) with different content were synthesized by low-temperature ion-sputtering-assisted hydrothermal synthesis method. The phase composition, morphologies of ZnO, and electrical properties analyzed. Ag-doping affects the initially perpendicular nanorods, resulting in oblique becoming more obvious as increases, diameter decreasing gradually. width forbidden band gap films decreases increasing content. For Ag-ZnO/PET-GR...
Abstract Melt mixed polypropylene/polyamide 6 (PA6) and multiwalled carbon nanotubes (CNTs) were molded by compression, injection, interval injection molding. PA phase exists as an isolated dispersed in the sea–island system with different orientations dispersion degrees. CNTs prefer to be located minor because of their remarkable compatibility. However, when content is high enough, a conductive path can formed regardless morphology. Moreover, CNT low, forms unelongated structure, which...
AbstractAbstractPolypropylene/polyolefin elastomer (PP/POE) blends with and without β nucleating agent were prepared by injection moulding. Wide angle X-ray diffraction (WAXD) results are in agreement differential scanning calorimetric (DSC) melting curves; both demonstrate the formation of hexagonal phase after adding PP/POE blends. The addition increases toughness PP but decreases their tensile strength. Brittle–ductile transition (BDT) occurs blends, no obvious BDT point can be seen...