管内偏转型高分辨率阴极射线管

开发了一种显示１２８０ＴＶＬ活动图象的管内偏转型１４英寸阴极射线管。管内磁偏转线圈在６０℃，频率为６４ＫＨｚ和偏转电流６Ａ下工作表明有正常的真空特性。与普通偏 一圈相比，１ＮＹ可减小屏角光点１９％，节省材料３６％，节省能量４９％。     

高温合金无缝管材的研制与生产

介绍了国内高温合金无缝管材的研制和生产情况。指出高温合金无缝管材的研制和生产的关键在于穿孔,综述了提高高温合金毛管合格率的主要工艺原则。     

Laminated Perovskite Photovoltaics: Enabling Novel Layer Combinations and Device Architectures

High‐efficiency perovskite‐based solar cells can be fabricated via either solution‐processing or vacuum‐based thin‐film deposition. However, both approaches limit the choice of materials and the accessible device architectures, due to solvent incompatibilities or possible layer damage by vacuum techniques. To overcome these limitations, the lamination of two independently processed half‐stacks of the perovskite solar cell is presented in this work. By laminating the two half‐stacks at an elevated temperature (≈90 °C) and pressure (≈50 MPa), the polycrystalline perovskite thin‐film recrystallizes and the perovskite/charge transport layer (CTL) interface forms an intimate electrical contact. The laminated perovskite solar cells with tin oxide and nickel oxide as CTLs exhibit power conversion efficiencies of up to 14.6%. Moreover, they demonstrate long‐term and high‐temperature stability at temperatures of up to 80 °C. This freedom of design is expected to access both novel device architectures and pairs of CTLs that remain usually inaccessible.     

连续纤维增强复合材料商用车车轮的抗冲击性能仿真

为实现车轮的轻量化,采用碳纤维增强树脂基复合材料、基于国标要求的轮辋与轮辐截面尺寸设计一款商用车车轮,并根据层合板设计原则设计其铺层结构。为验证车轮的抗冲击性能,基于车轮30°冲击试验标准,在Abaqus软件中建立车轮冲击试验的有限元仿真模型,分别基于蔡 吴准则和Hashin准则对车轮冲击过程的受力状态进行模拟,根据仿真结果改进车轮的铺层方式,从而提高车轮的抗冲击性能,使其满足冲击试验要求。与同等规格的铝合金车轮相比,复合材料车轮取得约25.3%的轻量化效果。     

Crosslinking and post‐crosslinking of ethylene vinyl acetate in photovoltaic modules

Ethylene vinyl acetate (EVA) is the dominating material for the encapsulation of solar cells. A better understanding of the crosslinking reaction progress during PV module lamination could lead to promising approaches for shortening of PV module lamination times but also for optimization of the EVA formulation. Therefore, the main aim of this study is to investigate the crosslinking behavior of EVA but also for optimization potentials of the EVA formulation. Currently, a degree of crosslinking higher than 70% obtained from Soxhlet extraction, is used as quality control standard in PV industry. Thermomechanical properties of the investigated EVA films demonstrate a sufficient state of crosslinking already after 5 min, which corresponds to a Soxhlet value of around 50%. Nevertheless, the effect of the remaining, still reactive peroxide crosslinker under service relevant conditions cannot be neglected. Therefore, the behavior of mini‐modules manufactured at different lamination times and stored under various aging conditions is investigated. EVA not fully cured during lamination are undergoing postlamination crosslinking. At the same time, remaining active crosslinker causes discoloration at soldering ribbons after accelerated aging. The crosslinking time in the lamination process may be reduced to ≥6 min, compromising between high throughput in production and the need of avoiding degradation. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134, 44912.     

水乳性纸塑复合胶粘剂的研制

以丙烯酸酯为主要原料,通过种子乳液聚合法合成了乳液型纸塑复合胶粘剂。讨论了单体的选择与配比、引发剂、pH值调节剂、乳化剂用量、聚合时间等因素对聚合反应及纸塑复合胶性能的影响。     

AD干式复合胶粘剂的研制

本文研究了AD干式复合胶粘剂(干复胶)的性能和单体组成,丙烯酸酯共聚物的合成工艺以及成份之间的相互关系。结果表明,AD干复胶的性能达到和某些性能优于常用聚氨酯干复胶的水平,且成木降低了20～30%。     

Fabrication of integrated resistors in printed circuit boards

In order to utilize integrated passive technology in printed circuit boards (PCBs),manufacturing processing for integrated resistors by lamination method was investigated.Integrated resistors fabricated from Ohmega technologies in the experiment were 1 408 pieces per panel with four different patterns A,B,C and D and four resistance values of 25,50,75 and 100 Ω.Six panel per batch and four batches were performed totally.The testing was done for 960 pieces of integrated resistors randomly selected with the s...     

玻璃纤维在电工电子材料中的应用

根据电气绝缘材料产品分类法,介绍了玻璃纤维相关制品即以其为补强材料与增强材料的绝缘浸渍玻璃纤维制品、玻璃纤维增强塑料层压制品、玻璃纤维模塑料、云母制品、绝缘粘带与复合制品六类产品连同电磁线的主要规格、性能与用途,以提升玻璃纤维在现代电气绝缘材料产品中的地位。     

乳液型纸塑复合胶粘剂的研制

采用预乳化半连续乳液聚合工艺,合成了一种丙烯酸酯类乳液,将其与自制水性松香乳液、VAE乳液复配制成复合乳液胶粘剂,用于包装和印刷行业的纸塑复合,剥离强度达到了3 8N/25mm。探讨了单体、引发剂、乳化剂、聚合方法等对丙烯酸酯乳液的影响,考察了松香树脂、VAE乳液影响产品性能的因素。