期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
软玉市场上一种有机伪皮仿仔料的鉴别 被引量:4
1
作者 汤超 周征宇 +1 位作者 廖宗廷 钟倩 《宝石和宝石学杂志》 CAS 2015年第6期1-7,共7页
近期在软玉交易市场出现的一种仿仔料,以软玉山料、山流水料为原料,经磨圆处理后,通过有机材料在其表面形成一层人工伪皮。该种有机伪皮仿仔料的外观特征与带有天然风化皮的仔料极为相似,对消费者具有一定的欺骗性。采用常规宝石学测试... 近期在软玉交易市场出现的一种仿仔料,以软玉山料、山流水料为原料,经磨圆处理后,通过有机材料在其表面形成一层人工伪皮。该种有机伪皮仿仔料的外观特征与带有天然风化皮的仔料极为相似,对消费者具有一定的欺骗性。采用常规宝石学测试手段结合电子探针和傅里叶变换红外光谱仪对仔料和有机伪皮仿仔料的常规宝石学性质、化学成分和红外光谱进行综合比对研究。研究结果表明,仔料与仿仔料的表面形貌特征、折射率、密度等常规宝石学性质存在区别,而紫外灯下发光特征一致。仔料风化皮的化学成分中FeO_T含量高于未风化层,且FeO_T含量随风化皮颜色的变浅显著降低;而仿仔料伪皮的化学成分无法由电子探针准确测定。仔料风化皮、未风化层和仿仔料未风化层均具透闪石的红外光谱特征;而仿仔料伪皮则显示高分子聚合物的红外光谱特征,其中1 730,1 452cm^(-1)附近的红外吸收谱带分别为v(C=O)和δ(C—H)所致。表面形貌特征观察、折射率测定并结合化学成分和红外光谱分析对该种有机伪皮仿仔料的鉴别具有一定意义。 展开更多
关键词 仔料风化 仿仔料 伪皮 电子探针 红外光谱
下载PDF
Preparation on Nanoemulsion of Pomegranate Peel Polyphenol
2
作者 傅力 王华斌 +2 位作者 李远 章斌 蔡丽 《Agricultural Science & Technology》 CAS 2015年第12期2821-2823,共3页
[Objective] The aim was to obtain the preparation technology of the pomegranate peel polyphenol nanoemulsion. [Method] The pomegranate peel polyphe- nol nanoemulsion was prepared by the titration methods and the pseud... [Objective] The aim was to obtain the preparation technology of the pomegranate peel polyphenol nanoemulsion. [Method] The pomegranate peel polyphe- nol nanoemulsion was prepared by the titration methods and the pseudo ternary dia- gram. The effect of various elements on the formation of the nanoemulsion was stud- ied. [Results] The optimal prescription of the pomegranate peel polyphenol nanoemul- sion was 4.4%(w/w) of pomegranate peel polyphenol, 34.1%(w/w) of EL-40, 17.1%(w/w) of anhydrous ethanol, 5.7%(w/w) of IPM and 38.7%(w/w) of distilled water. [Conclusion] It is feasible to produce the pomegranate peel polyphenol nanoemulsion by the titration methods and the pseudo ternary diagram. It consists of pomegranate peel polyphe- nol, EL-40, anhydrous ethanol, IPM and distilled water. There is 4.4%(w/w) of the pomegranate peel polyphenol in the nanoemuJsion. 展开更多
关键词 Pomegranate peel polyphenol NANOEMULSION The pseudo ternary dia- gram
下载PDF
An intelligent light-managing ionic skin for UV-protection,IR stealth,and optical camouflaged Morse codes 被引量:2
3
作者 Xiaofang Shi Zhouyue Lei Peiyi Wu 《Science China Materials》 SCIE EI CAS CSCD 2022年第8期2281-2288,共8页
Ionic skins that demonstrate great advantages in the mechanical properties and multiple sensory capabilities are regarded as an attractive candidate to mimic functions of human skin.However,human skin is vulnerable to... Ionic skins that demonstrate great advantages in the mechanical properties and multiple sensory capabilities are regarded as an attractive candidate to mimic functions of human skin.However,human skin is vulnerable to be damaged under long-time sunlight irradiation,and most of the current ionic skins also lack a protection against harmful ultraviolet and infrared lights.Herein,this work develops a multifunctional ionic skin based on ionic conductive and light-managing hydrogels via a facile one-step locally confined polymerization.It is mechanically adaptable,able to modulate light in the broadband solar spectrum,and protect human skin from the harmful ultraviolet and infrared lights.Moreover,without complicated processing,the ionic skin enables human-machine interactions via wireless and optical camouflaged Morse codes.We believe this work will promote the development of smart wearable devices with multiple customizable functions. 展开更多
关键词 ionic skins HYDROGELS light-managing human-machine interfaces
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部