变色性

Synthesis and research of photochromism based on side-polyimide containing azobenzene group.

手性偶氮苯衍生物的光致变色和全息存储特性研究。

Issues dealt with included temporal dietary changes of neon damsel, dietary comparisons between Stegastes spp., feeding interactions between a territorial damselfish and blennies, and the effect of anthropogenic enrichment on diets of damselfishes.

文中所探讨的课题包括：变色雀鲷食性的时序性变动、真雀鲷间的食性比较、太平洋真雀鲷与鳚科鱼类间的摄食互动以及人为营养源对雀鲷食性的影响。

Flexural property after heat treatment : Coating no crack , no desquamate , no crinkle or color change

热处理后的弯曲性：涂层不开裂，脱落起层或变色

Shrink labels business card printing and membership card making ink needs to have strong adhesion, flexility, thermotolerance, a significant portion of ink pigment in the heat cannot be chromotropic or faded.

收缩标签制卡和会员卡制作油墨需要具有较强的附着力、柔韧性，相当的耐热性，油墨中的颜料在高温下不能变色或褪色。

Experimental process: jing and 3- methyl -2- methyl ethyl ketonesynthesizes by the benzene zong; Again the glacial acetic acidcatalysis produces 2, 3, 3 - trimethyl - 3H - yinduo; Again has thealkylate response production yinduo iodide after the methyl iodide;The iodide takes off molecular HI under NaOH to become freejier thealkali; Adds 5 - nitryls salicylic aldehydes in the ethyl alcohol forthe solvent under if to respond finally produces 6 '- the nitryl yinduolin spiral benzene and pinan; Through the infrared spectrum andthe ultimate analysis irrevocably proved its structure, and studiedthe annulus with to open the annulus the light to send changes colorthe performance, explained in different solvent medium ultravioletabsorption spectrometry solvent effect, and the comparisondiscoloration the response speed number difference, finally mixed itadds to the methyl methacrylate, the peroxidation benzoin formyl in the plexiglass, tested 6 '- the nitryl yinduolin spiralbenzene and pinan in the glass fatigue resistance, thethermostability.

实验过程：由苯肼和3-甲基-2-丁酮合成腙；再冰醋酸催化生成2 ，3 ，3—三甲基—3H—吲哚；再经过碘甲烷发生烷基化反应生成吲哚碘化物；碘化物在NaOH下脱去一分子HI成为费歇尔碱；在乙醇为溶剂下加5－硝基水杨醛与其反应最后生成6'—硝基吲哚啉螺苯并吡喃；通过红外光谱和元素分析确证其结构，并研究了环体与开环体的光致变色性能，解释了在不同溶剂介质中紫外吸收光谱的溶剂效应，并比较褪色反应速率数的差异，最后将其掺加到甲基丙烯酸甲酯，过氧化二苯甲酰有机玻璃中，测试6'—硝基吲哚啉螺苯并吡喃在玻璃中的抗疲劳性、热稳定性。

Excellent adhesion and adherence , resistance to heat and discoloration , available for processes of immersion Ni-Au , immersion tin or silver ; Lead Free HAL , hole plugging , green ink bridging , etc .

具附着力强、密着性高、耐高温不变色、能做沉镍金或沉锡、沉银、喷纯锡、塞孔、绿油桥等工艺。

The post cured film provides excellent adhesion and adherence , resistance to heat and discoloration , available for processes of immersion Ni-Au , immersion tin or silver ; Lead Free HAL , hole plugging , green ink bridging , etc .

具附着力强、密着性高、耐高温不变色、能做沉镍金或沉锡、沉银、喷纯锡、塞孔、绿油桥等工艺。

Business card printing and membership card after the light of the product business card printing and membership card making ink, you must have thermotolerance and solvent resistance, otherwise the business card printing and membership card making products such as graphic is produced by chromotropic or wrinkled skin, and so on.

制卡和会员卡制作后需上光的产品所使用的制卡和会员卡制作油墨，必须具备耐溶剂性和耐热性，否则制卡和会员卡制作品图文就会变色或产生起皱皮等故障。

Adjust the pH of gold and silver powder of oil and gold powder has recycles nature, use of the golden oil must be a oxidability small far in neutral and quick-drying fast-and high viscosity resin oil, in order to avoid long-term preservation and oxidation, and best, method of self, can be further enhanced by chromotropic anti-oxidization.

调金油的酸碱度银粉和金粉都具有便当氧化的本质，所以搁置的调金油务必是氧化性小、酸碱度在洋性的迟潮迟固、矮黏度树脂油，为了制止恒久留存而起氧化，并最坏拔取即用即调的自调配办法，可以进一步提矮不攻氧化变色。

As the biggest rosy gold jewellery manufacturer, TTF has developed anti-discolouration and anti-rupture technology for rose gold, which has satisfactorily solved the problem of discolouration and rupture of rose gold; With "diamond fabric" technology: TTF can "weave" the diamonds into fabric-like jewelry.

作为中国最大的玫瑰金生产商，TTF永久性地解决了玫瑰金变色和断裂难题；&钻石丝绸&技术将钻石镶嵌得像丝绸一样柔软，工艺具有全球领先性；浓硫酸代替氰化钾炸金技术，解决了贵金属首饰加工工艺中剧毒化学品的污染问题，具有非常强的环保性；镀膜电金技术工艺成功解决了水银底镀膜电金这一技术难题，达到世界先进水平。

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。