氧化钛

For babies who might have an allergy do not buy sunscreens with PABA, fins one with the titanium dioxide.

对于有过敏可能的宝宝，不要购买含有PABA的防晒品，选择那些含有二氧化钛的产品。

On the base of these studies, TiO_2 was added to the copolymer resin solution to improve the anti- ultraviolet function. As a result, siloxane-acrylate coatings with good water-proofness, excellent perdurability and high heat resistance were prepared.

在此基础上，向共聚溶液中添加二氧化钛作为紫外光吸收剂，制得了憎水性好、耐候性优良、热稳定性高、有机硅改性丙烯酸酯涂料。

Objective: To introduce the application and development of photocatalysis technique of Nanometer TiO in the area of environmental science.

目的：介绍纳米二氧化钛光催化技术在环境科学领域的应用发展慨况。

To improve the low quantum efficiency of TiO_2 is one of the most important questions in the field of photocatalysis research.

提高二氧化钛半导体的光催化量子效率一直是光催化研究的热点。

The behavior of home-made photocatalyst spray has been studied in laboratory.

本文对自制光触媒喷液（纳米二氧化钛为主要原料制成的喷液）的性能进行研究。

In the titania-modified MCM-41, although the titania were in an amorphous state and in tetrahedral coordination rather than octahedral coordiantion, which exsists extensively in crystalline titania, they exhibited relative high photocatalytic activity for the photodecomposition of phenol.

所合成的无定形的氧化钛修饰MCM-41的光催化剂显示了较高的催化活性。

Its high photooxidation activity might be the combination effect of the microstructure and the surface modification.

氨吸附量热研究表明空气热脱水得到的氧化钛晶须具有很高的酸容量。

The changes in size, shape, absorption, and binding energy of Ag nanoparticles irradiated with picosecond laser of 800 nm were studied.

通过射频磁控溅射方法制备了嵌入在无定型氧化钛基体中的Ag纳米颗粒膜，研究了Ag纳米颗粒的大小、形状、吸收光谱及Ag的结合能在800 nm皮秒激光照射后的变化规律。

By photo-catalysis experiment test the reactiveness of TiO2 particle as photocatalyst, which is prepared in our lab. By compared with the one that is bought from Germany, we can know the ratio of reactiveness of it against the one from Germany is about 74%.

在光催化实验中，检验了本实验室产二氧化钛粉体的光催化活性，可知其在苯酚降解中的光催化效率达到德国产粉体的74％左右。

On the basis of summarizing the current synthesis methods of Polydimethylsiloxane,we have successfully synthesized Polydimethylsiloxane by choosing the process of green solid acid as the synthesis method, Polydimethylsiloxane's synthesization is synthesized with D4 and MM as raw materials by three steps as retractation polymerization and equilibrium with titanium oxide as catalyzer.

我们在考察了目前现有的合成方法的基础上，选择了用绿色固体酸氧化钛做催化剂以八甲基环四硅氧烷(D4)和六甲基二硅氧烷为原料经缩合、聚合、平衡化三步反应来合成二甲基硅油。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐