复层建筑涂料主涂层研制及施工应用

介绍了聚合物水泥系复层建筑涂料的研制、生产、原材料性能特点。讨论了胶粉不同掺量对复层涂料性能的影响,及施工过程中的注意事项等。     

复层建筑涂料主涂层研制及施工应用

介绍了复层建筑涂料的研制、生产、原材料特点以及胶粉不同掺量对复层涂料性能的影响;讨论了施工过程中的注意事项。     

高性能聚氨酯弹性橡塑树脂和涂料的研制

简述了高性能聚氨酯弹性橡塑树脂和涂料的制备工艺,列举了该弹性树脂和涂料的主要性能。着重讨论了多元醇结构、异氰酸酯种类、树脂的羟基含量、反应工艺条件和配套固化剂等因素对聚氨酯弹性树脂和涂料性能的影响。     

高性能聚氨酯弹性橡塑树脂和涂料的研制

简述了高性能聚氨酯弹性橡塑树脂和涂料的制备工艺,列举了该弹性树脂和涂料的主要性能。着重讨论了多元醇结构、异氰酸酯种类、树脂的羟基含量、反应工艺条件和配套固化剂等因素对聚氨酯弹性树脂和涂料性能的影响。     

高性能聚氨酯弹性橡塑树脂和涂料的研制

简述了高性能聚氨酯弹性橡塑树脂和涂料的制备工艺,列举了该弹性树脂和涂料的主要性能.着重讨论了多元醇结构、异氰酸酯种类、树脂的羟基含量、反应工艺条件和配套固化剂等因素对聚氨酯弹性树脂和涂料性能的影响.     

高装饰性建筑涂料的发展趋势

现在的涂料行业正在高速的发展,高装饰性建筑涂料主要有砂壁状涂料、复层涂料、拉毛涂料、仿幕墙涂料、仿花岗岩涂料、多彩花纹内墙涂料、云彩涂料、仿丝绸涂料、纤维质感涂料和丝网印花涂料等。其应用情况因其装饰效果、涂膜理化性能、适用场合和对环保与健康的影响等性能的不同而异。总体上分长期得到应用并且随着需求的提高而得到发展,     

合成树脂乳液复层涂料抗裂性的研究

简要介绍了合成树脂乳液复层涂料的组成,以及解决复层涂料初期干燥抗裂性的方法。     

武器装备特种涂料的研制

研究了基料分子结构对涂膜弹性及表面能的影响,选择了功能性颜填料及助剂对涂料进行改性,得到了耐腐蚀、耐磨、弹性、抗拉强度等综合性能良好的聚氨酯弹性体涂料。     

合成树脂乳液复层涂料用原材料的选择

介绍了合成树脂乳液复层涂料用原材料，如乳液、填料、骨料、助剂等的选择原则，并通过对原材料的筛选，解决了复层涂料初期干燥抗裂性、贮存稳定性及喷涂性等问题。     

弹性纯丙烯酸系建筑乳液的研制与应用

丙烯酸弹性涂料在建筑物屋顶防水、建筑墙面的涂装等方面用量与日俱增，而弹性乳液的性能在很大程度上决定弹性涂料的性能。本文介绍了纯丙弹性乳液BC-3268的制备方法以及应用性能指标，并讨论了功能性单体、乳化剂、引发剂等因素对乳液性能的影响。采用该乳液配制的弹性涂料其断裂伸长率达383％，拉伸强度达1．2MPa。     

多层陶瓷基板制造技术

采用CuO浆料为布线导体材料是制造多层陶瓷基板的新技术,该方法可彻底除去浆料中的有机物,制造性能良好,易于推广和批量生产的多层陶瓷基板,本文总结了CuO多层陶瓷基板材料及其制造技术,分析了各工艺对基板性能的影响,确定了最佳技术条件。     

Inhibiting tribocorrosion damage of Cr/CrxN coatings by multi-layer design

The two-layer and multi-layer Cr/Cr_xN coatings were fabricated on 316 L stainless steel (316 L SS) substrates by the arc ion plating technique. The two-layer Cr/Cr_xN coating was a typical CrN coating with an adhesive Cr layer. And the multi-layer Cr/Cr_xN coating design was in two dimensions. In the first dimension, the multi-layer Cr/Cr_xN coating consisted of alternative Cr/CrN layers with the thickness ratio of 1:5; in the second dimension, the alternative Cr₂N layers with the thickness of 10 nm were inserted in CrN layers. This design was expected to increase transverse interfaces in a smaller scale. The microstructures, mechanical, corrosion and tribocorrosion performances of both Cr/Cr_xN coatings were systematically investigated. The results showed that the special multi-layer design of Cr/Cr_xN coatings improved mechanical, anti-corrosion and anti-tribocorrosion performances. Compared with the two-layer Cr/Cr_xN coating, the reduced tribocorrosion damage of the muti-layer Cr/Cr_xN coating was closely related to the inhibited synergistic effect between electrochemical corrosion and mechanical wear. In conclusion, the multi-layer Cr/Cr_xN coating was more suitable to work as the surface protective coating than the two-layer Cr/Cr_xN coating in seawater.     

一种适用于催化反应精馏的新型填料

为适应催化反应精馏填料需要高持液量及高效率的应用特点,开发了一种新型多层丝网填料PACTU-800,并通过设计中试装置对其进行了流体力学性能测试及传质性能测试。以空气-水为测试物系的冷模实验表明,F因子为0—0.55时,喷淋密度增大则压降增大,F>0.55时,压降变化没有明显规律;并经拟合得到泛点气速公式,与贝恩-霍根公式计算值相对误差为9.1%;以正庚烷-甲基环己烷为测试物系的热模实验表明:该填料理论板数较高,且F因子对其影响不大;F>2.3时,压降开始急剧增大。结果说明:PACTU-800操作弹性大,持液量大,适合高气液负荷下操作;其通量大,压降变化小,停留时间长,效率较高且较恒定。     

Gamma-ray irradiation effect on microstructure and physical performances of porous silica

In this paper, the gamma irradiation effect on the microstructure and physical performances of porous silica, including mechanical, thermal, and optical performances, are systematically investigated by using molecular dynamics and density-functional theory-based methods. The study of bond angle distribution, pair distribution function, coordination number distribution, and average ring size distribution show that, after gamma-ray irradiation, the microstructure of porous silica is obviously modified. The tight packing of SiO₂ tetrahedrons in the porous silica network is broken by gamma-ray irradiation. Defects of three-coordinated Si and non-bridging oxygen are induced by gamma-ray irradiation. Moreover, we find that the defects concentrations rapidly grow as gamma-ray dose increases. The mechanical, thermal, and optical performances of porous silica are all seriously degenerated by gamma-ray irradiation. Our results show that, for mechanical performance, Young's modulus, Bulk modulus, and Shear modulus first decrease and then keep stable as gamma-ray dose increases, but the change of Poisson's ratio is slight. For thermal performance, the thermal conductivity decreases exponentially as gamma-ray dose increases. For optical performance, light absorption coefficients increase exponentially and light transmittance drops as gamma-ray dose increases in the working range (photon energy range around 3.5 eV) of inertial confinement fusion. Present work is expected to be valuable for studying the degradation mechanism of silicate materials under gamma radiation and developing gamma-ray irradiation protection technology.     

Thermally stable and transparent F-doped SnO2 (FTO) /Ag/FTO films for transparent thin film heaters used in automobiles

We investigated the characteristics of F-doped SnO₂ (FTO)/Ag/FTO films prepared using thermal evaporation at room temperature for the application of the as-formed films in transparent thin film heaters (TFHs) of automobiles. To optimize the electrical and optical properties of the FTO/Ag/FTO multi-layer, the figure of merit (FoM) values of the FTO/Ag/FTO multi-layers were compared as a function of the thickness of the Ag and FTO layers. The sheet resistance and optical transmittance of the FTO/Ag/FTO multi-layer were primarily affected by the Ag inter-layer and bottom/top FTO thicknesses, respectively. At optimized Ag (10 nm) and FTO (40 nm) thicknesses, we fabricated a FTO/Ag/FTO electrode with a sheet resistance of 8.00 Ohm/square, an optical transmittance of 83.04 % at a visible wavelength (400–800 nm) and a FoM value of 19.49 Ohm^-1. The TFHs comprising the optimal FTO/Ag/FTO electrode exhibited a saturated temperature of 117 °C at a low operating direct current of 6 V, owing to the low sheet resistance. In addition, the FTO/Ag/FTO-based TFHs exhibited thermally stable performances owing to the stability of the bottom and top FTO electrodes. The performance of the FTO/Ag/FTO-based TFHs demonstrated that the thermally evaporated FTO/Ag/FTO multi-layer is a promising, stable, and transparent electrode material for application in the front window TFHs used in automobiles.     

双组分聚氨酯弹性漆的开发

以羟基聚酯多元醇树脂作为基料,制备了手感好、高抗划伤、耐磨消光弹性漆。讨论了基体树脂、固化剂、-NCO／-OH物质的量比、助剂等对产品性能的影响。     

Preparations of TiO2 pastes and its application to light-scattering layer for dye-sensitized solar cells

Three different structures of TiO₂ electrodes of the dye-sensitized solar cell (DSSC) devices were fabricated with layers of nanoparticles and light-scattering particles, and their photovoltaic performances were investigated when the polymer electrolytes were used. Especially, 20-nm- and 123-nm-TiO₂ pastes were prepared by using sol–gel method, to use for light-scattering layer from the incident light. The best efficiency of 6.03% under AM 1.5 was attained with a multi-layer structure using 123-nm-TiO₂ layer for the light-scattering layer and 9-nm-TiO₂ layer for the dense layer.     

丙烯酸聚氨酯涂料用弹性固化剂的制备

介绍了一种用于丙烯酸聚氨酯涂料的弹性固化剂的制备方法,由其配制的丙烯酸聚氨酯涂料具有极强的附着力、耐候性和弹性,可抵抗混凝土表面的轻微裂纹。讨论了不同聚醚多元醇、不同脂肪族异氰酸酯、不同—NCO含量合成的固化剂对漆膜性能的影响。     

助剂对聚氨酯弹性密封胶性能的影响

以低聚物多元醇(N220、N330和N303)为软段、甲苯二异氰酸酯(TDI)和3,3′-二氯-4,4′-二氨基二苯基甲烷(MOCA)为硬段、辛酸亚锡为催化剂、邻苯二甲酸二辛酯(DOP)为增塑剂和轻质碳酸钙(CaCO3)为填料,合成了聚氨酯(PU)弹性密封胶。着重探讨了不同助剂与PU弹性密封胶性能之间的关系。结果表明:当w(辛酸亚锡)=1%～2%、w(轻质CaCO3)=30%～70%和w(DOP)=5%～20%时,PU弹性密封胶具有较好的综合性能、较适宜的表干时间和硬度。