散热型印制电路环氧胶粘剂的研究

散热型金属复合印制电路板（HDPCB）是使电子设备更加轻型化、小型化、简单化、同时能提高其可靠性的措施之一。用改性环氧胶粘剂制得的HDPCB能满足航空机载电子设备的使用要求,实现了HDPCB的国产化。     

我国科学家发明纤维状聚合物发光电化学池

<正>可穿戴电子设备不仅能发光,而且还能改变颜色。这种更酷的时尚发光可穿戴电子设备有望在不久的将来成为现实。复旦大学高分子科学系、聚合物分子工程国家重点实验室彭慧胜课题组现已研制出一种新型纤维状聚合物发光电化学池,该项突破性研究为可穿戴纤维状发光器件的发展带来"曙光"。相关研究成果不久前已发表在国际顶级期刊《自然—光子学》。近年来,可穿戴电子设备被广泛应用于微电子、生物医药、运输和航空航天等领域。随着可穿戴纤维状能源器件的     

我国科学家发明纤维状聚合物发光电化学池

<正>可穿戴电子设备不仅能发光,而且还能改变颜色?这种更酷的时尚发光可穿戴电子设备有望在不久的将来成为现实。记者了解到,复旦大学高分子科学系、聚合物分子工程国家重点实验室彭慧胜课题组现已研制出一种新型纤维状聚合物发光电化学池,该项突破性研究为可穿戴纤维状发光器件的发展带来"曙光"。相关研究成果已于3月23日发表在国际顶级期刊《自然—光子学》。     

波导电铸

波导是无线电通讯设备中的关键元件之一.随着国防工业和航空工业的不断发展,电子设备也相应地向高精尖方面迈进,其微波器件的应用也越来越广.为了满足多方面的技术要求,波导元件的形状和结构也愈加复杂,加工的精度和光洁度也愈加提高.如园方过渡波导、梯形波导、软波导和多向长方喇叭波导等,都在电子设备中获得实际应用.波导电铸比机加工有更多优点.它不仅能成型机械法难以加工的复杂波导,而且能满足     

一种用于井下工具电子设备的冷却系统

为了延长井下工具电子设备的使用寿命和工作时间,设计了一种用于井下工具电子设备的冷却系统,该系统包括一个冷却装置和一种低功耗运行井下电子设备的方法。其中冷却装置包括电子设备、主动冷却层和散热器,电子设备设置于主动冷却层上端面,主动冷却层的下端面与散热器接触,主动冷却层采用薄膜热电制冷。当使用井下工具的电子设备时,先将其输送到井下位置,再利用薄膜热电冷却层从井下工具的电子设备吸收热量,并通过连接其上的散热器泵送热量。此外,为井下工具及测井设备设置了低功耗模式,可通过定时中断来实现电子设备周期性的工作,以便冷却系统能够以最小的成本维持井下工具及测井设备的正常运行。     

用于电子产品的导热配混料

Cool聚合物公司的一系列新导热配混料能提供改进的耐热性和更好的散热性,用于电子设备如注塑线轴、螺线管、汽车点火装置、离合器螺管和外装螺管。新的配方能提供高达280℃的耐热温度和与其它部件（通常是金属）之间最大的热传导率。     

新型复合材料让电子设备更快降温

据物理学家组织网近日报道,美国科学家研发出了一种更有效、更便宜的给电子设备降温的方式,新方法尤其适用于给激光器和发电设备等会产生大量热的电子设备降温。新技术使用了一个由铜—石墨烯复合材料制成的"热扩散器"。科学家们借用一个铟—石墨烯接口薄膜,将该"热扩散器"依附到电子设备上来给电子设备降温。研究论文作者、北卡罗莱纳州立大学材料科学和工程学助理教授吉格.卡斯切勒拉表示:"铜—石     

书讯

《电子设备金属腐蚀与防护技术》已由中国标准出版社正式出版.全书从电子设备总体设计要求出发,介绍了电子设备金属腐蚀与防护技术基本概况和各种方法,是一本综合性的书籍,可供从事电子设备和其它产品镀(涂)层的设计、生产、检验和管理工程技术人员使用,也可供有关院校师生参考.定价:5.50元.邮挂费10%.此外,经天津市人民政府批准,邮局对用户寄挂号信函、印刷     

运用加成型有机硅解决导热方面问题研究

随着我国社会经济的发展,科学技术的进步,电子产品的日益增多,人们对电子产品的依赖性越来越强,工作和生活越来越离不开电子设备。技术的进步,电子设备以及电子元器件进一步实现了高性能、高可靠性的小型化的电子产品,工作效率不断提高,因此各个电子产品在工作过程中产生的热量也会逐渐增加。根据调查研究显示,电子产品的工作热度每增加10度,它的使用寿命就会减少一半,可靠性就会减少一半。为增加电子设备的使用寿命,提高电子设备的可靠性,将电子设备的热量能够极快散发成为目前设备安全运行的主要解决的问题。主要针对运用加成型有机硅解决导热方面问题进行研究。     

美科学家利用聚偏氟乙烯发明集能背包

美国科学家利用聚偏氟乙烯发明集能背包。其中的压电背包带是集能领域的最新发明,它可毫无浪费地将身边的能量转化为电能,借以延长电子设备的使用时间。该研究成果发表在最新一期的《智能材料与结构》期刊上。     

Organic materials for organic electronic devices

In recent years, organic electronic devices which use organic materials as an active layer have gained considerable interest as light-emitting devices, energy converting devices and switching devices in many applications. In these organic electronic devices, the organic materials play a key role of managing the device performances and various organic materials have been developed to improve the device performances of organic electronic devices. In this paper, recent developments of organic electronic materials for organic light-emitting diodes and organic solar cells were reviewed.     

Polyurethane adhesives for electronic devices

The choice of polymeric materials in electronic packaging influences not only the performance parameters of electronic devices, but also their long-term reliability. Adverse conditions such as humidity, high temperature, and vibration prevent the electronic devices from functioning in the way that they were designed. This paper presents the results of experimental work aimed at studying the properties of new room temperature-setting polydiene urethane adhesives (PUAs). Based on hydroxyl-containing oligodiene urethanes, new PUAs were investigated for their mechanical and dielectric properties. It was found that the adhesives were highly elastic, stable against temperature and humidity, and had good dielectric characteristics. Reliability tests on printed circuit boards with the bonded electronic components were carried out in various conditions. The electrical resistance changes of bonded resistors were found to be in the range of 0.03-1.4% after all tests. It can be concluded that these adhesives do not adversely affect the performance of electronic components and can be used for the assembling of electronic devices in addition to conventional soldering.     

Biomaterials‐based organic electronic devices

Organic electronic devices have demonstrated tremendous versatility in a wide range of applications including consumer electronics, photovoltaics and biotechnology. The traditional interface of organic electronics with biology, biotechnology and medicine occurs in the general field of sensing biological phenomena. For example, the fabrication of hybrid electronic structures using both organic semiconductors and bioactive molecules has led to enhancements in the sensitivity and specificity within biosensing platforms, which in turn has a potentially wide range of clinical applications. However, the interface of biomolecules and organic semiconductors has also recently explored the potential use of natural and synthetic biomaterials as structural components of electronic devices. The fabrication of electronically active systems using biomaterials‐based components has the potential to produce a large set of unique devices including environmentally biodegradable systems and bioresorbable temporary medical devices. This article reviews recent advances in the implementation of biomaterials as structural components in organic electronic devices with a focus on potential applications in biotechnology and medicine. Copyright © 2010 Society of Chemical Industry     

Stretchable carbon nanotube conductors and their applications

Stretchable electronics has evolved rapidly in the past decade because of its promising applications, as electronic devices undergo large mechanical deformation (e.g., bending, folding, twisting, and stretching). Stretchable conductors are particularly crucial for the realization of stretchable electronic devices. Therefore, tremendous efforts have been dedicated toward developing stretchable conductors, with a focus on conductive material/polymer composites. This review summarizes the recent progress in stretchable conductors and related stretchable devices based on carbon nanotubes (CNTs), which was enabled by their outstanding electrical and mechanical properties. Various strategies for developing highly stretchable conductors that can deform into nonplanar shapes without significant degradation in their electronic performance are described in terms of preparation processes. Finally, challenges and perspectives for further advances in CNT-based stretchable conductors are discussed.     

工业建筑防雷系统剖析

随着工业控制系统内电子设备的数量和规模不断扩大，而电子设备普遍存在着绝缘强度低，过电压耐受能力差的弱点，当其因雷击受到电磁脉冲，特别是闪电电磁脉冲的袭击，会出现不同程度的运行故障．甚至造成巨大损失。因此工业建筑中的电子设备应进行多级分流（不少于三级防雷保护）的防雷措施．确保生产装置安、稳、优地运行。     

抗冻水凝胶的制备及其在柔性电子领域的应用

水凝胶具有优异的柔韧性、离子运输性和可调的机械性,在柔性电子领域具有广阔的应用前景,然而,水凝胶电子器件在严寒气候下容易冻结失效,严重限制了其在低温环境下的应用潜力,通过向水凝胶中引入低温防护剂可以赋予水凝胶抗冻性能,拓宽水凝胶电子器件的工作温度。该文从溶质离子、离子液体、有机溶剂以及抗冻蛋白改性水凝胶4个方面,综述了近年来抗冻水凝胶的制备方法和抗冻机理,阐述了抗冻水凝胶在超级电容器、传感器和电池等柔性电子领域的应用进展,归纳了抗冻水凝胶电子材料面临的问题与挑战,并展望了抗冻水凝胶电子材料的发展趋势,指出以天然可再生资源为原料开发具有优异机械性能、电化学性能、生物无毒性、生物相容性和生物可降解的抗冻水凝胶成为下一步研究重点,同时设计优化柔性电子装置、提高器件安全可靠性和输出稳定性也将成为重要的研究方向之一。抗冻水凝胶的制备及其应用研究将促进柔性电子功能材料领域的快速发展。     

Decontamination of mobile phones and electronic devices for health care professionals using a chlorhexidine/carbomer 940■gel

Though they reduce microorganism growth, current hospital disinfectants also damage many of today’s modern electronic devices such as tablets and smartphones. Herein, the efficacy of a new chlorhexidine digluconate gel (CDG) was tested as a disinfectant for mobile and electronic devices in a clinical environment. Specifically, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa and methicillin resistant Staphylococcus aureus were used to infect the screen of eight smartphones. The CDG was prepared at concentrations of 2%, 4% and 6%, and tested on paper disks infected with these bacteria before being tested on the smartphones. The devices were disinfected with the CDG gel (4%) at two times: immediately and after 5 min of the bacterial contamination. In all cases, the CDG gel eliminated 100% of gram-positive and gram-negative microorganisms compared to the control (without any agent). In addition, the gel did not damage the smartphones. Therefore, our study suggests that the CDG gel may be applied to disinfect a wide range of electronic devices for health care professionals in the hospital environment.     

导电水凝胶的制备及应用研究进展

导电水凝胶是一类将亲水性基质和导电介质有机结合的新型水凝胶,具有较高的柔韧性、可调的力学性能和优异的电化学性能,在柔性电子设备等领域具有广阔的应用前景。本文综述了导电水凝胶材料的研究前沿和动态,介绍了导电水凝胶的分类及制备方法,讨论了导电水凝胶的结构设计与性能,重点阐述了导电水凝胶材料的应用研究进展,归纳了导电水凝胶材料面临的问题与挑战,并展望了导电水凝胶材料的发展趋势,指出采用天然可再生资源为原料开发具有高导电性、力学性能稳定、耐极端温度、生物相容性和生物可降解的导电水凝胶将成为下一步研究重点,同时优化柔性电子装置、提高器件输出稳定性也将成为重要的研究方向之一。导电水凝胶的制备及应用研究将促进柔性电子功能材料领域的快速发展。     

Diamond Electronic Devices—The End of a Dream?

Because diamond has a high band gap, high-thermal conductivity, high-breakdown voltage, high-saturated electron velocity, low permittivity, and is exceptionally hard and resistant to chemical attack, it has long been argued that it is the ultimate electronic material. In this article the early history of diamond electronic devices is briefly reviewed. The relevant properties of diamond are then compared with those of silicon, GaAs, SiC, and the group III nitrides, and selected recent research on diamond electronic devices is covered in detail. Although exceptional advances have been made, it is concluded that the prospects for commercially successful electronic devices are poor.     

Integrated energy storage system based on triboelectric nanogenerator in electronic devices

The emergence of electronic devices has brought earth-shaking changes to people's life.However,an extemal power source may become indispensable to the electronie devices due to the limited capacity of batteries.As one of the possible solutions for the extermal power sources,the triboelectric nanogenerator(TENG)provides a novel idea to the increasing mumber of personal electronic devices.TENG is a new type of energy ollector,which has become a hot spot in the field of nanotechnology.It is widely used at the acquisition and conversion of mechan-ical enegy to electrice energy through the principle of electrostatic induction.On this basis,the TENG could be integrated with the energy stonage system into a self-powered system,W hich can supply power to the electronic devices and make them work continuously.In this review,TENG's basic structure as well as its working process and working mode are firstly discussed.The integration method of TENGs with enegy storage systems and the related research status are then introduced in detail.At the end of this paper,we put forward some problems and discuss the prospect in the future.