A5103213764- Enhanced Oil Recovery Techniques
- Petroleum Processing and Analysis
- Surfactants and Colloidal Systems
- Polymer Nanocomposites and Properties
- Concrete and Cement Materials Research
- Polymer composites and self-healing
- Nanocomposite Films for Food Packaging
- Hydrocarbon exploration and reservoir analysis
- Building materials and conservation
- Hydrogels: synthesis, properties, applications
- Innovative concrete reinforcement materials
- Advanced Thermoelectric Materials and Devices
- biodegradable polymer synthesis and properties
- Solar-Powered Water Purification Methods
- Magnesium Oxide Properties and Applications
- Phytochemicals and Antioxidant Activities
- Advanced Materials and Mechanics
- Electrospun Nanofibers in Biomedical Applications
- Proteins in Food Systems
- Conducting polymers and applications
- Cultural Heritage Materials Analysis
- Advanced Cellulose Research Studies
- Rare-earth and actinide compounds
- Polydiacetylene-based materials and applications
- Porphyrin and Phthalocyanine Chemistry
Wuhan University of Technology
2006-2022
Jiangsu Academy of Agricultural Sciences
2021
Huafon Group (China)
2020
Changsha University of Science and Technology
2008
Tianjin University
2004
The current work explores the potential use of commercial Chinese bayberry tannin (BT) to develop antioxidant PVA-based films using solvent casting process for packaging applications. effect BT concentration on opacity, water resistance and capacity resulting was investigated. Properties like tensile strength, thermal behavior, morphological aspects were also characterized. experimental results showed that PVA/BT formed with uniformly brown color generally good transparency, offering...
The dynamic interfacial tensions (IFTs) of enhanced oil recovery (EOR) surfactant/polymer systems against n-decane have been investigated using a spinning drop tensiometer in this paper. Two anionic–nonionic surfactants with different hydrophilic groups, C8PO6EO3S (6-3) and C8PO6EO6S (6-6), were selected as model surfactants. Partially hydrolyzed polyacrylamide (HPAM) hydrophobically modified (HMPAM) employed. influences surfactant concentration, temperature, polymer oleic acid the on IFTs...
Abstract Aqueous emulsions of cationic polyurethane ionomers, based on poly(ϵ‐caprolactone glycol) as soft segment, isophorone diisocyanate hard 3‐dimethylamino‐1,2‐propanediol chain extender and potential ionic center, hydrochloric acid neutralizer, were mixed with tetraethoxysilane to prepare silicon dioxide–polyurethane (SiO 2 /PU) nanocomposites by a sol–gel process during which the inorganic mineral is deposited in situ organic polymer matrix. The sizes distributions particles measured...
AA–IPEG comb-like copolymer is a kind of polycarboxylate-based dispersant for cement-based systems. Copolymers with different carboxylate contents were synthesised using isoprenyl oxy polyethylene glycol ether (IPEG) and acrylic acid (AA) as raw materials, further modified maleic anhydride. The copolymers characterised by Fourier transform infrared spectroscopy, gel permeation chromatography surface tension measurements. dispersion cement paste mixed was studied means the zeta potential,...
Polyvinyl alcohol (PVA)-based films containing Chinese bayberry tannin (BT) were prepared by cross-linking using glyoxal, glutaraldehyde and dialdehyde starch, individually. The presence of cross-linkers was evident to promote the transparency decrease moisture content PVA/BT films, while water solubility stayed almost unchanged in cross-linked films. All provided promotion vapor permeability, mechanical property thermal stability best barrier capacity found case film, highest tensile...
As a renewable and highly crystalline nano-object, chitin nanocrystals (ChNC) are the mechanical building blocks in cell walls of fungi exoskeletons shellfish, insects, other crustaceans have attracted intense interest production functional materials. The structural feature ChNC is composed acetylglucosamine units with two hydroxyl groups one acetyl group, latter can be transformed into more active amino by deacetylation. One issue that obtaining accessible increasing degree deacetylation...
Calcium sulfoaluminate (CSA) cements were currently receiving a lot of attention because their manufacture produced less CO 2 than ordinary Portland cement (OPC). However, it was essential to understand all parameters which might affect the hydration process. This work dealt with effect two nanostructured materials, such as nanoSiO (NS) and nanoTiO (NT), on properties CSA pastes during early hydration. Isothermal calorimetry, X-ray diffraction (XRD) Scanning electron microscopy (SEM) used...
To discuss prevention of sulfate attack, especially thaumasite form attack (TSA), resistance cement based material (SRM) were designed and prepared, properties which investigated systematically. Micro-analytical techniques introduced to identify erosion substances thaumasite, namely Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM) equipped with energy dispersive spectrometer(EDS). Results show that SRM have better resistance, as well...
Abstract The dynamic interfacial tension (IFT) of betaine and betaine/polyether‐nonionic surfactant‐mixed systems against hydrocarbons, kerosene, crude oil–water was studied using a spinning‐drop tensiometer. influence average molecular weight polyether‐nonionic surfactants on IFT mixed solutions investigated. On the basis experimental results, one can find that it is difficult to reach ultralow value for solution hydrocarbon kerosene because mismatch between hydrophobic hydrophilic groups....
The dilational properties of anionic gemini surfactants alkanediyl-α,ω-bis(m-octylphenoxy sulfonate) (C8CmC8) with polymethylene spacers at the water–air and water–decane interfaces were investigated by oscillating barriers interfacial tension relaxation methods. influences frequency bulk concentration on explored. experimental results show that linking spacer plays an important role in properties. moduli pass through one maximum for all three both interfaces. However, values interface are...
Several polycarboxylate superplasticizers (PCs) with different side-chain structure have been synthesized. The effect of PCs on hydration C 3 A has investigated by XRD, TG-DSC and SEM. results show that restrain as a whole, but accelerate formation Al(OH) AH 6 ; increase molecular weight long-side-chain, is slowed, the Al (OH) 2 8 also become slowed. With proportion are existence obvious. six-party flake hydrated products formed large number grafted carboxyl.
Abstract Aqueous emulsions of anionic polyurethane ionomers, based on polypropylene glycol as soft segment, isophorone diisocyanate diisocyanate, dimethylolpropionic acid chain extender and potential ionic center, triethylamine neutralizer, were synthesized. They mixed with styrene monomers to prepare polystyrene–polyurethane (PS/PU) nanocomposites by an evocator. The sizes distributions the particles measured dynamic light scattering, microstructure was observed transmission electron...