Materials Literature
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Synergistic effect in network formation of nylon-6(PA6) nanocomposites containing one dimensional(1D) multi-walled carbon nanotubes(CNTs) and two dimensional(2D) layered double hydroxide(LDH) platelets on improving the mechanical properties has been studied. Mechanical tests show that, with incorporation of 1 wt% LDHs…
Conventional plating / coating techniques like hard-chrome plating suffer from a serious drawback of being environmentally non-friendly. As a result, advanced surface engineering techniques such as electro-less nickel coating, thermal spraying etc. are being increasingly used to replace these conventional surface prot…
For entire roller embedded shapemeter roll, the relationship between the value of interference fit and the sensor pre-pressure, and the pressure transfer performance of shapemeter roll were analyzed by elasticity theory during the cold reversible rolling process. Considering the influence of strip temperature on the i…
Graphene / platinum nanoparticles hybrid membrane modified electrode was prepared by cyclic voltammetry( CV). The electrochemical behaviors of epinephrine( EP) were studied on this modified electrode,and an electrochemical method for determination of EP was developed. The morphology and the electrochemical properties…
四折的 benzocyclobutene-functionalized perylene bisimide (PBI 4 ) 被综合了，它的结构被 FTIR， MS 和 NMR 描绘。PBI 4 能与自己，或适当 dienophiles 反应在适当温度下面形成相应产品。与甲基乙烯基硅酮橡胶从 PBI 4 的反应获得的聚合物电影拥有了包括平坦形成性质的优秀电影。从 PBI 4 和甲基乙烯基硅酮橡胶的反应获得的 PBI 4 和聚合物电影的光性质被 UV/vis 和荧光光谱学决定了。
The ac conductivity and dielectric properties of Ca Cu3Ti4O12(CCTO) ceramics were investigated in a temperature range of-120℃ to 300℃ and a frequency range of 1 Hz to 10 MHz. Two different conduction processes, which can be well described by Mott's variable-range-hopping(VRH) mechanism, were observed in different temp…
为 bioactive 代理人的持续并且控制的版本的 biocompatible 和可被细菌破坏的聚合物系统的设计为众多的生物医学的应用程序是批评的。这里，我们设计了，综合，并且描绘了为模型药的控制版本的四个聚氨酯搬运人系统。这些聚氨酯是 biocompatible 并且可被细菌破坏因为他们 poly 由 biocompatible 组成(乙烯乙二醇) 或(caprolactone diol ) 努力 poly 作为软片断，线性脂肪族的 hexamethylene diisocyanate 或是的对称的脂肪族的周期的 dicyclohexylmethane-4,4-diisocyanate 分割，并且可被细菌破坏的 urethan…
盘子的微观结构的效果在传统的过程制作了两个，涉及扔，热滚动并且冷滚动( HR )，并且在表面上在扔+寒冷滚动的新奇成双的转动( TRC )处理 presensitized ( PS )的质量盘子被光显微镜学( OM )分析，扫描电子显微镜学( SEM )，和精力散的X光检查光谱学( EDXS )。electrolyzed HR 板的表面上的毛孔的形成能被归因于近似 1-m-sized 的存在大 Al-Fe 在 HR 板中猛抛与相比更小在 TRC 板中猛抛。而且，在 TRC 过程期间使用的剩余石墨润滑剂在随后的滚动过程期间在 TRC 板的表面上被骗诱。骗诱的污染物质趋于进一步败坏 TRC 板的表面上的毛孔的形成，和没有剩余碳在 HR…
The hexagonal β-NaYF4∶ Yb,Tm particles and core-shell structure β-NaYF4∶ Yb,Tm@ β-NaYF4∶ Yb particles were prepared by solvothermal method. The as-prepared particles were characterized using X-ray diffraction( XRD),field emission scanning electron microscopy( FESEM),and photoluminescence( PL) spectra. With the increas…
在由热水的方法的 100 个周期和那上的 1 仅仅展出了~ 299.3 ? mAh ? g 1 。因此，大音阶的第五音胶化合成方法获得的 Sn-Co/C composites 能是 Li 离子存储电池的阳极材料的一个完美的候选人。
A phosphated polyester polyol with a 1500 number average relative molecular mass was synthesized by 2-phosphono-1,2,4-butanetricarboxylic acid and 2,2-dimethyl-1,3-propane diol. Then the polyester polyol was reacted with isophorone diisocyanate to obtain the prepolymer. The prepolymer was extended by 1,4-butanediol an…
article i nfo Theaimoftissueengineeringisthefabricationofthree-dimensionalscaffoldsthatcanbeusedforthereconstruc- tion and regeneration of damagedor deformedtissuesandorgans.Awide varietyof techniqueshave beendevel- oped to create either fibrous or porous scaffolds from polymers, metals, composite materials and cerami…
Ferroelectric barium strontium titanate(BST) glasse ceramics doped with different content of La2O3 were prepared via the melt-quenching technique followed by controlled crystallization. The microstructures of crystallized samples were examined by X-ray diffraction and scanning electron microscopy. Dielectric propertie…
Multiferroic materials are currently the subject of intensive research worldwide, because of both their fundamental scientific problems and also possible techno- logical applications. Among a number of candidates in the laboratories, compounds consisting of rare earth and tran- sition metal perovskite oxides have very…
The molecular geometries, frontier molecular orbital properties, and absorption and emission properties of three 4-phenoxy-1,8-naphthalimide derivatives, namely 4-phenoxy-N-(2-hydroxyethyl)-1,8-naphthalimide(1),4-(2-tert-butylphenoxy)-N-(2-hydroxyethyl)-1,8-naphthalimide(2), and 4-[2,4-di(tert-butyl)]phenoxy-N-(2-hydr…
The tarnishing test in the presence of hydrogen sulfide（H2S） vapors has been used to investigate the tarnish resistance capability of copper-based alloys coated with Si02-like films by means of plasma-enhanced chemical vapor deposition（PECVD） fed with a tetraethoxysilane/oxygen mixture.The chemical and morphological p…
Super macroporousstyrene copolymer microspheresis made up by the method of reverse surfactantmicellewith amphiphilic poly( dextran-GMA) copolymer as surfactant. The effects of the oil-soluble surfactantSpan80 in the reaction system on the pore structure of the polymer microspheres are studied. The result shows that,th…
Thermoresponsive materials have overwhelming development prospects because of their excellent properties and widely potential applications. The polymer brushes of poly(MEO2MA-co-OEGMA526) were prepared by the copolymerization of 2-(2-methoxyethoxy)ethyl methacrylate(MEO2MA) and poly(oligo(ethylene glycol) methacrylate…
Abstract Bottom-up tissue engineering provides apromising way to recreate complex structural organizationsof native organs in artificial constructs by assemblingfunctional repeating modules. However, it is challengingfor current bottom-up strategies to simultaneously producea controllable and immediately perfusable mic…
Light-cured composite resins were prepared by illuminating a cylinder with a diameter of 4 mm and a length of 6 mm for 40 s,using bisphenol A ethoxylate dimethacrylate as monomer,triethyleneglycol dimethacrylate as diluting agent,camphoroquinone and dimethyaminoethyl methacrylate as photoinitiators and nanodiamonds as…