New cellulosic titanium dioxide nanocomposite as a protective coating for preserving paper-art-works     

Maryam Afsharpour  Fereshteh T. Rad  Hamid Malekian 《Journal of Cultural Heritage》2011,12(4):380

We investigate the TiO₂ role in the inherent protection of paper works of art to protect them against damaging effect of ultraviolet radiation, pollutant gasses, mold and bacteria. In this study a cellulosic nanocomposite of TiO₂ were used as protective coating on the surface of paper fibers. This layered nanocomposite can act as a consolidate materials too. Furthermore, to determine how well paper works screen objects from the damaging effects, two accelerated aging mechanisms due to light and heat are discussed. Results show good stability of papers with nanocomposite coating. Also, a good light stability was shown in the colored paper that treated with this nanocomposite. Furthermore, to demonstrate the degree of antifungal properties of coated papers, papers were treated with two common molds and the good preventive effect of coated paper against molds is described.  相似文献   

TiNYT15涂层车刀刀具使用寿命实验研究     

沈延山  于靖华 《大连大学学报》1997,(2)

本文主要介绍了用阶梯切削法来建立YT15氮化钛涂层车刀的刀具使用寿命计算公式方法,并对涂层刀具和未涂层刀具的切削数据进行了处理和比较,进一步从理论上和实验上论证了涂层刀具的使用寿命远高于未涂层刀具的事实。  相似文献   

镍-磷-氧化铁纳米复合材料镀层的制备及其性能研究     

马美华  郑波  张凤 《南京晓庄学院学报》2005,21(5):37-40

采用复合化学镀方法制备了镍-磷-氧化铁纳米复合材料镀层。通过孔隙率、耐腐蚀性、硬度、耐磨性等性质试验,结果表明:纳米复合镀层致密性、耐腐蚀性和耐磨性等均优于A3钢片,甚至优于Ni-P镀层。  相似文献   

Water-soluble UV curable urethane methyl acrylate coating: preparation and properties     

魏燕彦  罗英武  李宝芳  李伯耿 《Journal of Zhejiang University. Science. B》2004,(8)

INTRODUCTION During the last 20 years, UV coatings havegrown from their first applications in furniturecoatings to embrace many industries includingelectronics, printing and automotive. Because oftheir fast production rates, low temperature cureand volatile organic compound (VOC) reduction,UV curable coatings have achieved fast growth inthe coating market. However, in the conventionalUV-cured coating system, the reactive diluentsused to reduce the viscosity have strong odor,toxic…  相似文献   

Tribology Performance and Adhesive Strength Evaluation of TiAlSiN Coating     

姜峰  谢鸿  融亦鸣  言兰 《天津大学学报(英文版)》2011,17(4):248-253

Scratch test and friction test were performed to evaluate the internal and external interface behaviors of TiAlSiN coating, respectively. The critical compressive and shearing stress of coating failure during scratch test were calculated and the values are 30.84 MPa and 4.98 MPa respectively. The average friction coefficients of TiAlSiN coating against 2Cr12Ni4Mo3VNbN steel are 0.70 (sliding speed 50 m/min), 0.63 (sliding speed 100 m/min), and 0.81 (sliding speed 150 m/min). The elements diffusion was analyzed by EDS. Al and Si element of coating material diffuse to the steel disc, except Ti element. The oxidation decreases with the increase of sliding speed, but the adhesion increases with the increase of sliding speed. More Al element diffuses to the steel disc at the high sliding speed, but the diffusion of Si element keeps almost constant at different sliding speeds.  相似文献   

环状光束辐照下光学薄膜基底温度场有限元分析     

江腾蛟 《嘉应学院学报》2011,29(11):36-39

基于热传导方程,利用有限元分析方法,利用MSC.Marc有限元软件建立了激光辐照下光学薄膜基底温度场的三维模型,研究了光学薄膜基底在环状光束辐照下的温度场分布,并进行了分析.  相似文献   

壳聚糖涂膜保鲜萝卜的研究     

胡洪禄  赵东风  马天芳  王文政 《潍坊高等职业教育》2007,(1)

该研究通过试验,采用不同浓度的壳聚糖溶液涂膜处理萝卜。本文探讨了萝卜在贮藏过程中的主要生理生化变化,试验结果表明,在常温条件下,萝卜经过45d的贮藏,呼吸强度、失水率、可溶性糖含量、糠心率、腐烂率等均明显优于对照,为萝卜的保鲜提供了另一途径。  相似文献   

加入换热离子涂层的防火阻燃层设计     

王小雷 《科技通报》2014,(10)

研究防火涂料热解反应动力学分析模型和阻燃层制备方法,提出一种加入换热离子涂层的防火涂料阻燃层制备方案。进行换热离子涂层阻燃剂的制备和防火涂料阻燃层制备,测定防火涂料性能,分析热量吸附等温线,得到防火涂料制备聚合反应流程。实验结果表明,设计的防火涂料阻燃层热解残余物炭物质较多,从而使该防火涂料经久耐烧,具有高效隔热防火性能,提高其耐火性和热解反应的活化能力。阻燃层与其它各组分防火涂层达到最佳的协合,形成一个完整、有机的防火体系。研究得出的防火涂料阻燃层具有优良的阻燃性能和防火性能,保证了消防安全。  相似文献   

建筑物理学角度分析透明隔热涂料使用的科学性     

郝建娟 《环球赛鸽科技》2014,(28)

理量之间的关系,建立透过率与住宅采光等级指标照度的关系,并结合相关研究和照度计的实际测试,表明透明隔热涂料的使用符合住宅建筑采光的需求和人体舒适度的需求。  相似文献   

达克罗涂液工艺技术研究     

王敏  黄鑫  贺子凯  王家禄 《玉溪师范学院学报》2005,21(3):19-21

论述了达克罗涂液中A、B、C三种组分的构成、制备及作用,以及达克罗涂料配制工艺等关键技术的研究成果.  相似文献