变色性

Objective: To investigate the mechanism of discoloration and the efficacy of bleaching of traumatized teeth.

目的：本实验旨在探讨创伤性变色牙的变色机制及漂白疗效。

Paper through to 6 '- nitryl yinduolin spiral benzene and pinan the synthesis, understands the spiral pinan color change.

论文通过对6'—硝基吲哚啉螺苯并吡喃的合成，来了解螺吡喃变色性。

Because of this technology does not need the process of acid pickling and high temperature, there is no hydrogen embrittlement took place in the spare parts, and it possess a great deal of merits such as self-healing function after scotch, meanwhile it has hyper heat-resistance, hyper tonicity, hyper stickability, hyper anti-friction, hyper weatherability, hyper corrosion resistance, and when used outside, it can maintain its color for a long-period without change.

由于该工艺不经过酸洗和高温，所以零件无氢脆发生，擦碰伤后还有自愈合功能，同时还具有高耐热性，高渗透性，高附着性，高减摩性，高耐候性，高耐化学品腐蚀性。用在室外可长期保持不变色等诸多优点。

RSP-810A is single component liquid photoimageable plating-resist allochromatic ink , which is screen printing or roller coating type , it can provide such performance as high resolution , excellent adhesion , so it's fit to professionally make precise inner layer of printed circuit boards and flexible circuit boards , also it's available to production quantity requirement for acid or alkali etching and photograph transfer.

RSP-810A系列为网印或辊涂两用型液态感光线路变色油墨，具有高解象度及良好的密著性，适用于印刷电路板精密内层专业制作及挠性板线路制作，可符合酸碱性蚀刻及细线路板影像转移的量产要求。本系列产品具有以下优点

This paper describes the photochromism and thermal back-isomerization of 4-undecylen-[10]-amidoazobenzene and its homo-and copolysiloxanes in solution and solid film.

本文研究了对十一烯酰胺基偶氮苯及其硅氧烷均聚、共聚的梳状聚合物在溶液或薄膜状态下的光致变色性和热回复性。

In this study, we developed the ammonia sensing material by using MCM-41 impregnated with bromocresol green. MCM-41 is one kind of mesoporous molecular sieves. It can be applied to many fields due to well-defined pore shapes, narrow distribution of pore sizes, large pore volumes, high surface area, excellent thermal, hydrothermal, chemical and mechanical stability. And the bromocresol green dye is commonly used as a pH indicator with colorimetric from pH 3.8 to pH 5.4.

本研究之目的是结合变色染剂及中孔洞分子筛MCM-41进行氨气吸附，研究中所选择之变色染剂溴甲酚绿是一种偏酸性之大分子有机染剂，其变色范围在pH 3.8到pH 5.4；而MCM-41由於其孔洞大小分布范围狭窄、孔洞体积大、高比表面积、具有良好的吸附容积、表面反应性强及易於改质等优点，故期望利用此复合材料，经气体吸附达到氨的移除并同时在吸附饱和前能产生显色效果。

Gold and silver ink business card printing and membership card making tremendous, that is, Business card printing and membership card after making demonstrated unique gold and silver powder suspension and authenticity is for preservation guarantees that the quality, not chromotropic.

金银墨制卡和会员卡制作的最大特点，就是在制卡和会员卡制作之后能表现出特有的金银粉末的悬浮性和成色性，在保存中可保证质量的稳定，不变色。

The compounds were proved by UV testing to have excellent photochromic properties both in organic solutions and polymer films.

新化合物在几种有机溶剂中均表现出了良好的光致变色性。

Indolinospiropyran is a kind of photoresponsive compound, and it has attracted significant attention for its photoisomerization between two forms,excellent properties of fatigue counteraction.

吲哚啉螺吡喃是一种重要的光致变色化合物，由于具有良好的变色回复性、抗疲劳性而得到广泛的关注。

The effects of spatial hindrance , solvent, free volume were investigated. The result showed that the structure of graft copolymers exhibit a marked influence on photoisomerization.

另外，邻位被丙烯酰氧基取代的偶氮聚合物还表现出光致变色性禁阻，这说明空间位阻起了一个非常重要的作用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。