查询词典 titanium oxide

So anatase titanium oxide can separate electrum and cavity more effectively. At the same time, anatase has better photoactivity than rutile. Therefore it is significant to research how to prepare stable anatase titanium oxide film. On the other hand, titanium oxide absorbs ultraviolet light strongly (absorption edge is at 380nm) but visible light weakly.

在光催化方面TiO_2的激发必须在高能量的紫外光下才能进行，而到达地面的太阳能中只有3-4%的紫外光，人工紫外光又价格昂贵，所以将光激发红移到可见光区，可降低成本、节省能源。

A weakly magnetic black mineral found in metamorphic and plutonic rocks; an iron titanium oxide in crystalline form; a source of titanium .

一种具有弱磁性的黑色矿物，见于变质岩和火成岩中，晶体状铁钛氧化物，是钛的来源。

A weakly magnetic black m ral found in metamorphic and plutonic rocks; an iron titanium oxide in crystalline form; a source of titanium.

一种具有弱磁性的黑色矿物，见于变质岩和火成岩中，晶体状铁钛氧化物，是钛的来源。

A Simple titanium resource and a soft preparation method is very important in the preparation of titania, hydrogen titanium oxide hydrate and sodium...

本文以无水乙醇作为溶剂，以钛酸四丁脂为钛源，采用溶剂热法制备氧化钛纳米粒子、钛酸纳米管，讨论了产品的形成机理。

Titanium plate first was cleaned by glow Discharge using argon plasma to eliminate surface contaminants and to produce a consistent and reproducible titanium oxide surface layer. Then an intermediary allylamine deposition was covalently linked to the oxide layer by glow discharge, followed by the covalent binding of albumin to the free terminal NH2 groups using glutaraldehyde as a coupling agent. Surface morphologies were observed by scanning electron microscopy and atomic force microscopy.

样本以扫描式电子显微镜及原子力显微镜﹙AFM﹚观察表面形态变化，以能量分散光谱仪进行表面元素变化之定性分析，使用X光光电子能谱仪检测表面化学键结与元素变化作定性分析与半定量分析，并以胶样金免疫标示法配合使用场发射枪扫描式电子显微镜(Field Emission Scanning Electron Microscope， FEG SEM)，观察钛金属表面白蛋白连接情形作定性分析与定量分析。

A method for producing fatty acid alkyl esters and/or glycerin comprising a step of bringing a fat or oil into contact with an alcohol in the presence of a catalyst, wherein the catalyst is at least one catalyst selected from the group consisting of the following to: a metal oxide having an ilmenite structure and/or a slyrankite structure; an oxide containing a metallic element belonging to the Group 12 and a metallic element belonging to the Group 4; a mixed oxide containing a metallic element belonging to the Group 12 and a tetravalent transition metallic element; a metal oxide containing zirconium and at least one metallic element selected from the group consisting of metallic elements belonging to the Groups 4, 5 and 8; and a metal oxide containing anatase type titanium oxide and/or rutile type titanium oxide, and the metal oxide containing a sulfur component of 700 ppm or less.

脂肪酸烷基酯和/或甘油的制造方法包括在催化剂的存在下使脂肪或油与醇接触的步骤，其中，所述催化剂是选自由下列～所组成的组中的至少一种催化剂：具有钛铁矿结构和/或斯里兰卡石结构的金属氧化物；含有属于第12族的金属元素和属于第4族的金属元素的氧化物；含有属于第12族的金属元素和四价过渡金属元素的混合氧化物；含有锆和选自由属于第4、5和8族的金属元素所组成的组中的至少一种金属元素的金属氧化物；和含有锐钛矿型氧化钛和/或金红石型氧化钛的金属氧化物，并且所述金属氧化物含有的硫成分为700ppm以下。

Two series of polyurethane acrylate grafted acrylic resins (Acr-g-TPU-PETA and Acr-gPPU-PETA) self-emulsifying systems are obtained by grafting -NCO group modified polyurethane acrylates with acrylic copolymer prepared from n-butyl acrylate, styrene,βhydroxyethyl methacrylate and acrylic acid The self-emulsifying systems showed Newtonian fluidity with viscosity closed to that of water, the solid contents were around 30% The T〓 of 15～4℃ for dried film before photocuring favored film formation at room temperature DSC and DMA results showed that PU-PETA is compatible with acrylic resin in the grafted resin The TG and dTG curves for Acr-g-PU-PETA samples were substantially different from the corresponding blends, and the brodened dTG peaks for photocured grafted resin suggest that there might be multiple interactions among chain segments The photocued film of the grafted resins self-emulsifying system exhibited good overall properties with polyurethane acrylate grafts ranging from 30% to 50%, and Acr-g-TPU-PETA series showed better properties than Acr-gPPU-PETA series The adhesion of the photocured film was 1～2 grade, impact strength was 50kg-cm and flexibility was 1mm The Shore hardness and the adhesion of the film decreased markedly if PETA was replaced by HEMA as photoactive group due to the lower C=C double bond content in the grafted resin The polyhydroxy amine-linked thioxanthones photoinitiators can be evenly dispersed in self-emulsifying system without color spot appearing in the dried film The films photocured with IV〓～IV〓 generally exhibited higher Shore hardness, gloss and solventresistance than that cured with Irgacure 2959 and did not induce the rusting of the iron substrate Pigmenting with titanium oxide had no effect on the photocuring The polyhydroxy amine-linked thioxanthone IV〓 and IV〓 can be new candidates for the formulation of titanium oxide pigmented photocurable water-borne coatings for their pale-yellow appearance and slight interference with the color of the coatings WB 4759 with high water-solubility coalesced and separated from the dried resin film, and even induced the rusting of iron substrate.

以丙烯酸丁酯，甲基丙烯酸-β-羟乙酯，丙烯酸及苯乙烯合成厂丙烯酸共聚树脂，并与含-NCO端基的聚氨酯丙烯酸酯接枝反应，经水性化后，得到两个系列（Acr-g-TPU-PETA和Acr-g-PPU-PETA）各5个不同配比的丙烯酸树脂接枝聚氨酯丙烯酸酯自乳化体系，粘度与水相近，为牛顿流体，固含量30％左右。光固化前干燥涂膜的玻璃化转变温度在-15℃～4℃之间，有利于室温下成膜。DSC及DMA谱表明两种树脂基本相容。Acr-g-PU-PETA的热失重行为明显不同于共混材料，接枝样dTG峰明显宽化，表明接枝样中链段之间的相互作刚有多重性，丙烯酸树脂与聚氨酯之间有一定的相容性。接枝树脂自乳化体系光固化涂层的综合性能以聚氨酯丙烯酸酯成分为50％～30％者相对较好，且以Acr-g-TPU-PETA系列更理想。光固化膜的附着力为1～2级，冲击强度为50kg·cm，柔软性多为1mm。以HEMA代替PETA作为接枝树脂的活性基团，碳—碳双键密度太低，光固化膜交联点太少，硬度和附着力均较差。多羟基胺连硫杂蒽酮光引发剂能均匀分散于树脂自乳化体系和接枝树脂干膜中，不出现色斑，光固化膜肖氏硬度一般高于以Irgacure 2959为光引发剂的光固化膜，光泽度及耐丁酮溶剂性能均有所提高，不会诱导铁基生锈，钛白着色对光固化结果几乎没有影响。本论文所合成的多羟基胺连硫杂蒽酮光引发剂IV〓与IV〓为浅黄色，对光固化涂层的颜色干扰较小，为配制钛白着色光固化水性涂料提供了新的光引发剂。水溶性太强的WB 4759在干膜中易聚结析出，且对所附着的铁基有诱导锈蚀作用。

Keywords Palladium;Titanium oxide;Barium oxide;Aluminum oxide;Nitrogen oxide;Storage-reduction catalyst;Sulfur resistance;Lean burn engine emission

钯； 氧化钛；氧化钡；氧化铝；氮氧化物；储存-还原催化剂；抗硫性能；贫燃发动机尾气

"Titanium Goose Ceramic High Speed Rail under the ceramic production 'K2O-Al2O3-SiO2′ ternary system phase diagram and the iron titanium oxide in different color under the conditions of the principle of green glaze recipe for technological innovation so that billet, at the end of the glaze, glaze surface three raw materials as close as possible to the expansion coefficient, at a high temperature reduction firing, the control FeO/Fe2O3 proportion and coloring oxides of different valence state to develop a cream-colored,棕红, brown, light窑变blue color, and simplicity of natural color, green color and窑变color white, color, soft, short thick matching, contour lines of fresh, rich European-style."

&下的陶瓷生产'鹅钾钛陶瓷高速铁路- Al2O3 - SiO2系'三元体系相图，并根据绿色原则的条件不同颜色铁钛氧化物釉配方技术创新，使钢坯，在在釉底，釉表面3尽可能的膨胀系数在高温还原烧成，接近原料，不同价态的控制FeO/Fe2O3比例和着色氧化物发展米黄，棕红，棕色，蓝色光窑变，和自然的颜色，绿色和窑变颜色有白色，彩色，软，短厚匹配，新鲜，丰富的欧洲风格的轮廓线简单。&

Titanic oxide , titanium dioxide , titanium oxide

钛白； 钛白；氧化钛；二氧化钛

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。