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Design of Multistimuli-Responsive Shape-Memory Polymer Materials by Reactive Extrusion
Shape-memory polymers (SMPs) are a class of stimuli-responsive materials that have attracted tremendous attention in various applications, especially in the medical field. While most SMPs are thermally actuated, relating to a change of thermal transition (e.g., melting temperature), SMPs that can be actuated upon exposure to light are emerging. Recently, there has b...
http://www.polymer.cnt//ss/wulinbo/publicationsshow_9128.html |
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EVALUATION OF DIFFERENT MEASUREMENTS FOR EFFECTIVE THERMAL CONDUCTIVITY OF FIBROUS MATERIALS
Effective thermal conductivity is generally recognized as the intrinsic factor to reveal the
thermal responses of fibrous materials. Here, two typical measurements, the step-wise
transient method and the guarded hot plate method, were utilized to identify their feasibility for the effective thermal conductivity of fibrous materials（no-woven fabric and twill fabric）with different stacking...
http://www.polymer.cnt//ss/qulijun/publicationsshow_8913.html |
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Study on water vapor diffusing coefficient of fibrous materials by fractal method
In this paper, a fractal model for predicting water vapor diffusion coefficient of hydrophobic fibrous materials is presented. To verify the validity of the model, the predicted results from the fractal model are compared with the experimental data and calculated values from the previous models. It is found that the fractal model predication shows better agreement with the experimental data than...
http://www.polymer.cnt//ss/qulijun/publicationsshow_8907.html |
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Measuring the thermophysical properties of porous fibrous materials with a new unsteady-state method
In this article, the authors first introduced a theoretical model dealing with unsteady-state heat conduction in porous fabric to assess the effects due to local convection during the testing. A few important issues are analyzed including the criterion for local thermal equilibrium in the fibrous materials and the confidence time region (t min–t max) during measuring process. The influence due to...
http://www.polymer.cnt//ss/qulijun/publicationsshow_8893.html |
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2016-Materials & Design: Preparation, mechanical and anti-friction performance of MXene/polymer composites
In this study, a Ti3C2 nanomaterial and Ti3C2/UHMWPE (ultrahigh molecularweight polyethylene) nanocomposites were prepared. The morphology, structure and properties of the Ti3C2/UHMWPE nanocomposites were investigated. The results indicate that Ti3C2 nanoparticle can improve the thermal and mechanical properties of UHMWPE. The crystallinity and hardness of the Ti3C2/UHMWPE nanocom...
http://www.polymer.cnt//ss/qiangchen/publicationsshow_8772.html |
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Antibacterial and Biofilm-Disrupting Coatings from Resin Acid- Derived Materials
We report antibacterial, antibiofilm, and biocompatible properties of surface-immobilized, quaternary ammonium-containing, resin acid-derived compounds and polycations that are known to be efficient antimicrobial agents with minimum toxicities to mammalian cells. Surface immobilization was carried out by the employment of two robust, efficient chemical methods: Copp...
http://www.polymer.cnt//ss/yanyi/publicationsshow_8642.html |
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Assembly of Magnetic Nanospheres into One-Dimensional Nanostructured Carbon Hybrid Materials
The synthesis and characterization of carbon-coated ferromagnetic nanoparticles that organize into 1-D assemblies of micrometer-sized ferromagnetic chains is described. A controlled aromatization and carbonization of glucose under hydrothermal reaction conditions enabled the preparation of carbonaceous surfactants that were used as shells for the coating of ferromagnetic Fe3O4 nanos...
http://www.polymer.cnt//ss/lishenghai/publicationsshow_8618.html |
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Fabrication of Superhydrophobic Cellulose-Based Materials through a Solution-Immersion Process
An industrial waterproof reagent [(potassium methyl siliconate) (PMS)] was used for fabricating a superhydrophobic surface on a cellulose-based material (cotton fabric or paper) through a solution-immersion method. This method involves a hydrogen bond assembly and a polycondensation process. The silanol, which was formed by a reaction
of PMS aqueous solution with CO2, was assembled on th...
http://www.polymer.cnt//ss/lishenghai/publicationsshow_8609.html |
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Advanced Materials, 2009, 21, 1830-1834. Bioinspired Degradable Substrates with Extreme Wettability Properties
Robust superhydrophobic poly(L-lactic acid) (PLLA) substrates are prepared using a new phase-separation-based method. The wettability of the surfaces can be controlled in the range from superhydrophobic to superhydrophilic using argon-plasma treatment. The figure shows water droplets with different contact angles on differently modified PLLA surfaces superimposed on a SEM image of a rough s...
http://www.polymer.cnt//ss/songwenlong/publicationsshow_8512.html |
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Magnetic dendritic materials for highly efficient adsorption of dyes and drugs
A versatile and robust adsorbent with both magnetic property and very high adsorption capacity is presented on the basis of functionalization of iron oxide-silica magnetic particles with carboxylic hyperbranched polyglycerol (Fe(3)O(4)/SiO(2)/HPG-COOH). The structure of the resulting product was confirmed by Fourier transform infrared (FTIR) spectra, thermo gravimetric analysis (TGA), zeta-potenti...
http://www.polymer.cnt//ss/zhouli/publicationsshow_8258.html |
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