高半纤维素浆粕纺制Lyocell纤维的结构与性能

采用成本低、半纤维素含量高的浆粕纺制Lyocell纤维,重点对制得的高半纤维素Lyocell纤维的结晶、取向、力学性能、原纤化和染色性等进行了研究。研究表明:这种用高半纤维素浆粕纺制的Lyocell纤维与用高α-纤维素浆粕纺制的Lyocell纤维相比,它的模量、结晶度、取向度、抗原纤化能力和染色性等都好于后者。     

Silk materials for medical,electronic and optical applications

Silk derived from the silkworm Bombyx mori is among the most important fibrous protein biomaterials due to large-scale production from natural sources, excellent biocompatibility, unique mechanical properties and controllable degradation. Silk fibroin can be processed into a variety of formats to match different applications, such as tissue engineering, drug delivery or as the passive substrate of a bio-device. Advances in fabrication technologies provide new possibilities for the combination of silk fibroin with other nanomaterials to functionalize silk fibroin for specialized purposes, including sensing, cell visualization,resistance to ultraviolet light and provision of antibacterial properties. As the requirement for wearable and intelligent devices has become increasingly important over recent years, silk fibroin has been utilized as the active element in electronic and optical instruments. This review summarizes these recent advances in the innovative applications of silk fibroin.     

介绍高速线材在线测径仪

利用8束直于高速线材轴向的平行光以投影方式测量其截面尺寸.该设计已获得专利,并在太原钢铁公司成功运行.采用高速摄像机同时从8个方向拍摄同一断面尺寸,而不是螺旋断面尺寸;比目前国际先进的旋转测径多获取近100倍的断面数据,且可测头尾部的断面数据,对工艺分析更准确方便;由于线材截面存在围绕其轴向往复摆动,所以可实现无盲区测量全截面;由于测量机构固定不旋转,机械、电气精度高,寿命长;8个固定方向测量有利于轧制工艺分析;友好的人机界面便于分析应用.     

U薄膜制备方法

探讨了U薄膜的制备方法。主要介绍了机械抛光、电解抛光、机械轧制、磁控溅射沉积、离子束辅助沉积和聚焦离子束方法等，涉及了精细U薄膜的制备要求。同时，简要介绍了防止U薄膜氧化的后处理手段。