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Effect of Heat-treatment on Crystalline Phase and UV Absorption of 60CeO2-40TiO2 Thin Films by Magnetron Sputtering倪佳苗1,2,3,赵修建11. State Key Laboratory of Silicate Materials for Architectures (Wuhan... on the UV-absorption of the thin films were studied on the 60CeO2-40TiO2 thin film with the largest UV cut-off wavelength. The sample films with CeO2:TiO2=60:40 were heated at 773 K, 873 K, 973 K for 30 min......
DSC法研究双酚A型环氧树脂的UV固化过程 陆山风1,熊华富2,郑红娟3,张爱民3 (1.广西高速公路管理局,广西,钦州,535000;2.巴陵石油化工有限责任公司,湖南,岳阳,414014;3.高分子材料工程国家重点实验室,四川大学高分子研究所,四川,成都,610065) 摘要:以DSC法研究了双酚A型环氧树脂以ITX,184为光引发剂,在紫外光固化(UV)作用下的固化过程,及不同量的稀释剂对固化的影响.实验结果表明,放热反应在很短时间内达到高峰,放热峰过后转入缓慢的后反应阶段;放热过程的ΔH值基本上随稀释剂用量的增大而增大;平均固化速率大体上随稀释剂用量的减少而变慢. 关键词:环氧树脂; 光引发剂; 紫外光固化; [全文内容正在添加中] ......
薄膜反应器中UV光引发丙烯酰胺反相乳液连续聚合过程张巧玲,李小月,郑会敏,刘有智超重力化工过程山西省重点实验室中北大学化工与环境学院摘 要:报道了薄膜反应器在UV光直接引发丙烯酰胺(AM)反相乳液聚合中的应用.以OP-10/Span-80为复合乳化剂,环己烷为溶剂,在室温且不使用引发剂,采用UV光直接引发AM反相乳液聚合,所得聚合物相对分子质量达107.考察了单体浓度,光照强度,液体流量,转速等因素对聚合反应的影响.结果表明,单体浓度增加,聚合物相对分子质量提高,聚合速率先增加后减小;随着光强的增大,单体转化率和聚合速率增加,而聚合物相对分子质量下降;随着转速的增加,单体转化率和相对分子质量先增加后降低,当转速为300 r/min时达到最大值.通过调节转盘转速和原料流量得到最优停留时间.
Improved Visible Transparency of SiO2/ZnO:Al/CeO2-TiO2/SiO2 Multilayer Films with High UV Absorption and Infrared Reflection Rate倪佳苗1,2,3,赵修建1,ZHAO Qingnan1,ZHENG Mindong11. State Key Laboratory... Optic Sensing Technology, Wuhan University of Technology摘 要:New visible transparent, UV absorption, and high infrared reflection properties have been realized......
Fabrication of High Nano-ZnO Assembled Cotton Fabric with UV Blocking Property凌超1,2,郭腊梅1,21. College of Textiles, Donghua University2. Key Laboratory of Textile Science and Technology, Ministry..., and the as-obtained cotton fabric can possess better UV blocking property compared with common ZnO/cotton composite. Firstly, the cotton fibers were pre-treated by hydrogen peroxide solution(H2 O2......
High-performance UV detectors based on 2D CVD bismuth oxybromide single-crystal nanosheetsLong Chen,Chengtao Yang,Chaoyi YanState Key Laboratory of Electronic Thin Films and Integrated Devices...(CVD) method.The devices based on 2D ultrathin BiOBr single-crystal nanoflakes show a high UV detecting performance including low dark current(Idark) of 1.46pA and high re s ponsivity(R),external......
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Luminescence properties of Gd3+ containing glasses for ultra-violet(UV) lightD.D.Ramteke,R.S.GedamDepartment of Applied Physics, Visvesvaraya National Institute of Technology摘 要:UV light.关键词:......
溴酚蓝-金属离子复配物显色过程与效能的UV谱研究张明昕,吴秋宁,杨文斌福建农林大学材料工程学院摘 要:用UV谱考察了几种常见金属离子(Ca2+,Mg2+,K+,Na+)与溴酚蓝形成的乙醇-水溶液的吸收光谱,并用最小二乘法拟合了它们的特征吸收峰强度对应不同金属离子浓度的变化曲线.结果表明,该体系在437nm和597nm处存在2个直接影响显色的特征吸收峰,并且在597nm处的吸收峰强度与金属离子对溴酚蓝的助色能力正相关,因此可利用该特征峰来筛选优化类似体系的显色材料.关键词:溴酚蓝;金属离子;染料;三芳基甲烷;紫外-可见光光谱;......
