共查询到16条相似文献,搜索用时 93 毫秒
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日东电气工业公司用聚酰亚胺树脂生产出一种透明薄膜,这种透明薄膜可长期耐高温,并有很高的耐磨性和耐化学品性。这种薄膜的生产方法是,将芳族四羧酸酐与芳族二胺聚合,制得高粘度的聚酰亚胺原料,然后把它涂敷在不锈钢等基体材料上形成薄膜。虽然传统的聚酰亚胺薄膜是褐色的,但是该公司采用先进的分子设计技术,成功地使两种透明的、具有高度耐湿性和耐化学品 相似文献
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本文介绍了日本东丽公司发明的无需双轴向拉伸,仅采用在透明基板上涂布的方法即可简便制作的液晶显示装置用聚酰亚胺相位差薄膜的制造方法。并简要介绍了杜邦公司发明的将颜料混入聚酰亚胺的方法。 相似文献
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聚酰亚胺的研发途径及应用新进展 总被引:1,自引:0,他引:1
本文介绍了当今世界上聚酰亚胺及其薄膜产品的研发趋势,以及在信息记录与影像技术材料、新能源及其它工业与生活领域中应用的新进展。阐述了我国进行聚酰亚胺自主研发和技术创新的客观条件与研发途径。简述了作者的技术观点,阐明中华影像技术业界挺进聚酰亚胺领域的重要意义。 相似文献
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聚酰亚胺薄膜与太阳翼基板粘贴技术研究 总被引:2,自引:0,他引:2
卫星在轨运行过程中,太阳翼会受到恶劣的低真空、温度等环境因素影响,为了提高太阳翼在轨运行过程中的可靠性,对聚酰亚胺薄膜与太阳翼基板的粘贴技术进行了实验研究。结果表明:对聚酰亚胺薄膜表面进行电晕处理,能够显著地提高其表面粗糙度。聚酰亚胺薄膜与硅橡胶结合力得到大大提高,聚酰亚胺薄膜与基板剥离强度达到8.59N/cm,经过热真空及温度循环实验验证,电晕后的聚酰亚胺薄膜薄膜与基板粘贴牢固可靠,能够适应空间恶劣的环境。电晕技术为聚酰亚胺薄膜与基板的粘贴提供了一种有效的表面处理方法,可以推广至航天器其他舱外部件上使用。 相似文献
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应用于柔性显示的聚酰亚胺(Polyimide,PI)膜要求高透明性和低热膨胀系数CTE,而目前高透明聚酰亚胺的CTE普遍高于40×10?6/℃。本研究采用同质增强法,将高强度的纳米PI纤维与无色透明热塑性含氟聚酰亚胺(PI-F)复合,得到的纳米PI纤维增强PI-F基复合薄膜不仅保持PI-F的高透明,同时具有更低的CTE和优异的拉伸性能。研究结果表明:纳米尺寸的纤维可减少光透过时发生的散射,使复合薄膜维持了较高的透明性。当纳米PI纤维质量分数为10%时,在可见光区其透光率达到80.5%,与纯PI-F薄膜相比,复合薄膜的CTE值降低了40.3%,为28.3×10?6/℃。其拉伸强度提高了132.9%,达到107.6 MPa,拉伸模量增大了89.5%,达到1152.2 MPa。 相似文献
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p型透明导电膜是近来发现的一种新型的材料,在透明有源器件、传感器、透明电极和电路等方面具有广泛的潜在应用.近来在这方面的研究取得了一些突出的进展.本文主要综述了关于p型透明导电膜在材料、沉积工艺以及相关器件方面的研究进展. 相似文献
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Silver Nanowire Embedded Colorless Polyimide Heater for Wearable Chemical Sensors: Improved Reversible Reaction Kinetics of Optically Reduced Graphene Oxide
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Seon‐Jin Choi Sang‐Joon Kim Ji‐Soo Jang Ji‐Hyun Lee Il‐Doo Kim 《Small (Weinheim an der Bergstrasse, Germany)》2016,12(42):5826-5835
Optically reduced graphene oxide (ORGO) sheets are successfully integrated on silver nanowire (Ag NW)‐embedded transparent and flexible substrate. As a heating element, Ag NWs are embedded in a colorless polyimide (CPI) film by covering Ag NW networks using polyamic acid and subsequent imidization. Graphene oxide dispersed aqueous solution is drop‐coated on the Ag NW‐embedded CPI (Ag NW‐CPI) film and directly irradiated by intense pulsed light to obtain ORGO sheets. The heat generation property of Ag NW‐CPI film is investigated by applying DC voltage, which demonstrates unprecedentedly reliable and stable characteristics even in dynamic bending condition. To demonstrate the potential application in wearable chemical sensors, NO2 sensing characteristic of ORGO is investigated with respect to the different heating temperature (22.7–71.7 °C) of Ag NW‐CPI film. The result reveals that the ORGO sheets exhibit high sensitivity of 2.69% with reversible response/recovery sensing properties and minimal deviation of baseline resistance of around 1% toward NO2 molecules when the temperature of Ag NW‐CPI film is 71.7 °C. This work first demonstrates the improved reversible NO2 sensing properties of ORGO sheets on flexible and transparent Ag NW‐CPI film assisted by Ag NW heating networks. 相似文献
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图像合成中恰当处理一个图像的透明非常重要,然而由于技术等方面的原因,让一幅图像按照合成的需求选择性的"透明"确实是一个很复杂的问题。本文结合实际应用,将处理图像"透明"方式中的常见问题集中讨论,希望影视技术的相关人员在此类问题中得到帮助。 相似文献
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Preparation and application in p-n homojunction diode of p-type transparent conducting Ga-doped SnO2 thin films 总被引:2,自引:0,他引:2
Tieying Yang Huan-hua Wang Quanjie Jia Baoyi Wang Kurash Ibrahim Qing He 《Thin solid films》2010,518(19):5542-5545
The direct preparation of p-type transparent conducting Ga-doped SnO2 thin films and their fundamental application in transparent p-n homojunction diode were realized. The films were grown in an active oxygen ambient using reactive rf magnetron sputtering without post-deposition annealing involved. This method improved the electrical properties of the films while maintaining their optical transparency. By growing a p-type thin film on commercial n-type SnO2:F-coated glass, transparent p-n homojunction diode was obtained. It exhibits a distinct current-voltage rectifying characteristic, manifesting this p-type thin film and the fabrication technology are suitable for industrial applications. 相似文献
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We have succedded in fabricating a polyimide film with a molecular alignment superior to that obtainable by the conventional rubbing treatment. This phenomenon is realized by means of the dispersion of ultra-fine particles such as carbon and titanium dioxide in the polyimide precursor prior to the fabrication of the polyimide film and the rubbing treatment. The molecular alignment was evaluated with birefringence and infrared dichroism measurements. Further experiments establishe that the adsorption of polyimide molecules on ultra-fine particles is a significant factor in achieving a large orientational anisotropy. A model of the alignment is presented in which the rubbing treatment induces the particles to traverse the surface of the film, causing polyimide molecules adsorbed on them to be elongated in the rubbing direction. A potential application of oriented polymide films is the homogeneous alignment of nematic and smectic liquid crystals. 相似文献