底漆在密封胶和铝型材粘接中的作用

在有和没有底漆条件下,通过对阳极氧化、粉末喷涂、氟碳喷涂及铬化处理铝型材粘结性试验,结合铝型材表面处理原理,分析影响铝型材与硅酮密封胶粘结力因素。文章阐述了底漆改善密封胶和铝型材的粘结力原理。     

光伏背板粘结涂层与封装胶膜粘结力的研究

光伏背板粘结涂层与封装胶膜乙烯醋酸乙烯酯（ EVA）的粘结力是决定组件封装效果的关键因素。通过考察 EVA胶膜的种类、放置时间,以及涂料配方中氟碳树脂与丙烯酸树脂的质量比、填料的类型和含量、涂层厚度对涂层与 EVA胶膜粘结力的影响,结果发现通用型透明胶膜、抗蜗牛纹的胶膜与涂层的粘结力优于抗电位诱导衰减（ PID）功能的胶膜,胶膜的放置时间越长,与涂层的粘结力越低;涂料中丙烯酸树脂的添加会增大涂层与 EVA的粘结力,消光粉的表面有机处理、填料增多均会降低涂层与 EVA的粘结力;涂层的厚度越厚,与 EVA的粘结力越高。     

无机组分对冷灌缝材料粘结力影响研究

本文采用测量拉伸粘结力和剪切粘结力来考察无机组分水泥、砂子与沥青的比例及矿粉或者粉煤灰部分代替水泥对冷灌缝材料粘结力的影响,结果表明:无机组分对剪切粘结力影响明显,有机组分对拉伸粘结力影响明显;沥青与水泥的比例(油灰比)及沥青与砂子的比例(油砂比)的增大都能增大材料的拉伸粘结力和剪切粘结力,且对拉伸粘结力增大程度较剪切粘结力小;矿粉和粉煤灰掺加量为水泥用量的25％时,剪切粘结力和拉伸粘结力达到极值,若继续增大,材料本身易断裂.     

芳纶织物层合板加工工艺对纱线粘结力的研究

芳纶织物硬质靶板以其优异的力学性能广泛应用于防弹领域。为明确涂胶工艺对织物力学性能的影响,本研究重点分析了树脂含量、固化温度、靶板层数和抽拔速率对织物结构以及纱线间粘结力的影响。根据织物截面切片观测,分析了树脂在织物内纱线的渗透情况以及与纱线的界面结合情况;通过纱线抽拔测试,分析了涂胶工艺过程对织物内纱线间的粘结力的影响。测试结果表明,织物经涂胶整理后,树脂由织物涂胶面部分渗入,增加了纱线间的结合力,纱线间的粘结力随着树脂含量的增加而增大;涂胶织物经固化整理后树脂渗透作用增强,当树脂含量足够高时,纱线截面粘结成透镜形实心体。当树脂含量一定时,纱线间的粘结力随着固化温度呈现的先升高再下降的趋势,在130℃时纱线间的粘结力最大;靶板层数对纱线粘结力有着显著的影响,抽拔双层纱线所克服的纱线间粘结力远远大于抽拔单层纱线间所克服的纱线间粘结力;抽拔速率同样影响纱线粘结力,抽拔速率越快,则所需抽拔力越大。以上结论反映了织物内纱线自由度的变化,为提升防弹靶板吸能提供了理论基础。     

太阳能电池背板用胶黏剂的粘结稳定性能研究

本文研究了R值、涂胶量、固化时间、放置环境温度对太阳能电池背板用胶黏剂粘结稳定性能的影响。通过对比发现,影响胶黏剂粘结力衰减的主要原因是R值,且随着R值得增大,胶黏剂粘结力衰减比例越大。放置环境温度对胶黏剂粘结力衰减速率有影响。     

日本开发成功高粘着力氟树脂

普通氟树脂的缺点之一是其与其它材料不易粘合，即使采用一些特殊的处理方法，所达到的粘结强度也极弱，据称，日本Daikin工业公司已开发了第一个粘结力很强的氟树脂。     

铁电薄膜存储器底电极Pt/Ti的制备及性能研究

应用射频磁控溅射方法 ,在Si基片上采用不同的溅射工艺制备了铁电薄膜底电极Pt/Ti,并分析了在不同温度下退火后材料的电导率性能和粘结力性能 ,从理论和实验上分析了不同的溅射工艺和退火处理对底电极性能的影响。     

纳米粒子增韧环氧树脂的研究

本文主要探讨了纳米SiO2对环氧树脂韧性的影响。通过用偶联剂对纳米粒子表面改性处理，再辅助以超声波振动，使纳米粒子在环氧树脂中分散均匀、稳定，增强了纳米粒子与环氧树脂之间的粘结力，从而使复合材料的冲击强度得到了较大的提高，增韧效果较为明显。     

新型耐高温偶联剂的合成与应用

本文通过Si-H加成的方法合成了一款对基材具有较好粘结力,又能够提高封装胶耐高温能力的增粘剂T06。通过傅立叶红外光谱与高效液相色谱来判定反应进行的程度。通过粘度,含氢量来判定产物的性能。最后将产物应用于硅橡胶中,通过热重分析,高温老化后的拉伸强度来判定其耐高温性能,通过测定与基材的粘合强度来判定其对基材的粘结力。结果表明,新型耐高温能力的增粘剂T06既能够提高硅橡胶的耐高温性能,又能够提高其与基材的粘结力。     

假牙粘结剂的研制

为了克服原用假牙粘结剂的不足(如有砂砾感,粘结力保持时间短,吸水溶解慢等),本文研制了一种膏状假牙粘结剂。文中介绍了实验材料,配制方法,粘结力测试方法,讨论了粉液比,羧甲基纤维素钠粒度,聚乙烯醇,甘油等对性能的影响。     

钛合金化学镀Ni-P合金工艺的研究

通过对钛合金前处理、镀液配方及镀后处理的研究发现，对钛合金进行喷砂、活化、预镀镍、化学镀及热处理后，可获得具有较好耐磨性、结合力良好的Ni—P合金镀层。     

Radiolytic synthesis of Pd-M (M=Ag and Ni) and Pt-M (M=Ru and Ni) alloy colloids

Pd-M (M=Ag and Ni) and Pt-M (Ru and Ni) alloy colloids were successfully prepared in aqueous solution by γ-irradiation using poly(vinylpyrrolidone), PVP, as stabilizer. The PVP-stabilized Pd-M and Pt-M nanoparticles were characterized by UV-Vis spectroscopy, Transmission Electron Microscopy (TEM) and Electrophoretic Light Scattering (ELS) analysis. The influence of molecular size of the PVP on the size and size distribution of the alloy nanoparticles was followed. Pd-Ag nanoparticles were formed by employing PVP with different molecular weights. The size of Pd-Ag alloy nanoparticles was determined by TEM photograph and ELS spectra, respectively. From the TEM photographs, the average diameter of Pd-Ag nanoparticles does not show strong dependence on the molecular weight of the PVP. On the other hand, the average diameter of Pd-Ag alloy colloids prepared by PVP with Mw=40,000 was consistently larger than that of Pd-Ag alloy colloids prepared by PVP with Mw=10,000. A plausible scheme is given to explaining this. The size and size distribution of Pt-M (Ru and Ni) alloy colloids are presented.     

Inconel 600合金与1Cr18Ni9Ti钢的焊接

通过对Ｉｎｃｏｎｅｌ６００合金与１Ｃｒ１８Ｎｉ９Ｔｉ钢的焊接性分析，采用ＷＥＬ ＡＣ１８２焊条确定了合理的焊接工艺，成功地组焊了Ｉｎｃｏｎｅｌ６００合金与１Ｃｒ１８Ｎｉ９Ｔｉ不锈钢异种材料法兰。     

含氯介质超临界水氧化过程中几种镍基合金腐蚀的实验研究

超临界水氧化过程中,含氯化合物水溶液对普通不锈钢具有极强的腐蚀性. 使用超临界水氧化反应装置,研究了4种镍基合金不锈钢试样(1Cr18Ni9Ti, 316L, 0Cr18Ni12Ti和QLC12)在超临界水氧化过程中(400~620℃, 28~32 MPa)处理含氯废水时的腐蚀情况. 经过30 d的实验,用金相光学显微镜和扫描电子显微镜观测试样腐蚀的形貌. 结果表明,4种合金在15%(w)含氯水溶液中经过超临界水氧化反应均存在腐蚀. 对腐蚀速率进行了测试,其中1Cr18Ni9Ti和316L腐蚀速率较大,而QLC12腐蚀速率最小,为0.06 mm/a, 可用于制造反应器. 实验发现0Cr18Ni12Ti存在晶间腐蚀现象. 同时对腐蚀机理进行了分析.     

Effect of WC or NbC addition on lattice parameter of surrounding structure in Ti(C0.7N0.3)–Ni cermets investigated by TEM/CBED

The changes in the lattice parameters of the solid solutions in the Ti(C_0.7N_0.3)–WC–Ni and Ti(C_0.7N_0.3)–NbC–Ni systems were first shown quantitatively by the CBED (Convergent Beam Electron Diffraction) technique together with TEM (Transmission Electron Microscopy) microstructure characterization. The extent of the changes in the lattice parameters between core and rim differs in the case of WC and NbC additions. No change in the lattice parameters is observed in the Ti(C_0.7N_0.3)–WC–Ni cermets, in contrast to the Ti(C,N)–NbC–Ni cermets where significant changes in the lattice parameters are observed. The difference in the parameters is correlated with the core/rim structure, which disappears in the Ti(C,N)–NbC–Ni cermets when a large amount of NbC is added, and is discussed based on thermodynamic arguments. Large strain in the core and rim structure, especially near the core/rim interface, is also observed from the HOLZ (High Order Laue Zone) line splitting.     

用Ti/Ni/Ti多层中间层进行Si_3N_4陶瓷的部分瞬间液相连接

在１３２３Ｋ和０．１ＭＰａ压应力下用Ｔｉ／Ｎｉ／Ｔｉ多层中间层进行Ｓｉ３Ｎ４陶瓷的部分瞬间液相连接．测定了不同连接时间的接头四点弯曲强度,对连接界面进行了ＳＥＭ,ＥＤＸ和ＸＲＤ分析．结果表明：Ｔｉ和Ｎｉ相互扩散形成的液态合金与Ｓｉ３Ｎ４反应并浸润;液相区等温凝固后,形成Ｓｉ３Ｎ４／反应层／ＮｉＴｉ／Ｎｉ３Ｔｉ／Ｎｉ的过渡层连接;连接时间为７．２ｋｓ时,ＮｉＴｉ层已基本消失．分析了陶瓷部分瞬间液相（ＰＴＬＰ）连接的特征,提出了陶瓷ＰＴＬＰ连接参数优化的模型．     

New approach to chemical functionalization of poly(2‐chloroxylylene) thin films

3‐(8‐Octenyl)thiophene was used for successful preparation of functionalized poly‐(2‐chloro‐xylylene) (PCX) layers in the course of CVD process. The set of spectral methods used has allowed us to conclude that such modification is based on the chemical reaction of double bonds with xylylene radicals. Functionalized films were used for further chemical transformation in the course of polycondensation of 3‐octylthiophene. Resulted samples are bilayer films and polythiophene layer is chemically connected with PCX one. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011     

The fracture properties of a smart fiber metal laminate

This paper investigates the interfacial, tensile, and fatigue properties of a novel smart fiber‐metal laminate (FML) based on a nickel‐titanium (Ni‐Ti) shape memory alloy and a woven glass fiber reinforced epoxy. Initial tests, using the single cantilever beam (SCB) geometry, have shown that this unique system offers high values of metal‐composite interfacial fracture toughness. Tensile tests have shown that the mechanical properties of these FMLs lie between those offered by its constituent materials and that their tensile modulus and strength can be easily predicted using a rule of mixtures approach. Tension‐tension fatigue tests have shown that the fatigue performance of notched smart FMLs is superior to that offered by the plain Ni‐Ti alloy. A subsequent optical examination of unnotched laminates tested to failure under tension‐tension fatigue loading has shown that the fracture mechanisms occurring within the Ni‐Ti FMLs are strongly dependent on the applied cyclic stress. POLYM. COMPOS., 28:534–544, 2007. © 2007 Society of Plastics Engineers     

电沉积Ni-P合金镀层耐蚀性的研究

研究了不同磷含量的Ni-P合金镀层在NaCl介质中的耐腐蚀性能。通过浸泡实验,得出不同磷含量的Ni-P合金镀层在w（NaCl）=5%和饱和NaCl溶液中的腐蚀数据,同时还与纯镍镀层、化学镀Ni-P合金镀层、1Cr18Ni9Ti不锈钢以及A3钢进行了比较。     

钛合金化学镀Ni-P合金前处理工艺的研究

研究了浸蚀、浸锌等前处理过程对钛基体渗氢及化学镀Ni-P合金镀层与基体结合力的影响。结果表明,采用混酸浸蚀液,可以有效除去钛合金表面的钝化膜,控制基体中的渗氢量;二次浸锌得到的Ni-P合金镀层结合力较好,镀层均匀、紧密,镍晶粒尺寸较小。