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本文介绍了涂料的配方和合成、配制工艺,同时介绍了乳液和涂料的各项测试性能。主要对有机、无机聚合接枝机理进行了探讨,并研究了单体配方、乳化剂、交联剂、有机硅与酸共聚形式、无机物加入形式等对接枝共聚的影响。通过对比试验表明,接枝乳液涂膜有更好的硬度和冲击强度,配制的涂料克服了有机或无机涂料缺点,并通过工程应用,证实了涂料的耐久性及其它综合性能。 相似文献
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本文介绍了涂料的配方和合成、配制工艺,同时介绍了乳液和涂料的各项测试性能。主要对有机、无机聚合接枝机理进行了探讨,并研究了单体配方、乳化剂、交联剂、有机硅与酸共聚形式、无机物加入形式等对接枝共聚的影响。通过对比试验表明,接枝乳液涂膜有更好的硬度和冲击强度,配制的涂料克服了有机或无机涂料缺点,并通过工程应用,证实了涂料的耐久 性及其它综合性能。 相似文献
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将相平衡原理和相反应动力学原理应用于指导配方的设计。这使得EMI导电涂料的在制备过程中具有更合理的生产工艺和稳定的储存性能,并为导电涂料的漆膜提供更强的内聚力和更优秀的导电性能。通过比较导电涂料的树脂、导电填料、溶剂以及助剂的选择和应用对导电涂料的生产、施工以及漆膜物理性能的影响讨论导电涂料配方的设计技巧。 相似文献
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采用原位聚合的方法在锑掺杂氧化锡/氧化钛复合材料(TIO)上包覆一层完整的聚苯胺(PANI)膜,成功制备了PANI/TIO复合材料,将其作为水性聚氨酯涂料的填料,制备了水性聚氨酯导电涂料。利用X射线粉末衍射、透射电镜、红外光谱等分析方法对复合材料进行表征,利用涂层机械性能测试对导电涂料进行了测试。同时得到了制备PANI/TIO三元复合材料的最佳工艺条件:苯胺(An)包覆量为15%、m(An)/m[磺基水杨酸(SSA)]=0.4、m(An)/m[过硫酸铵(APS)]=3。在最佳工艺条件下,得到的PANI/TIO复合材料体积电阻率为15.3Ω·cm。实验结果表明:当填料比为15%时涂层机械性能最佳,硬度为2B、耐冲击力为50 cm、附着力为1级、涂层表面电阻为3.56×105Ω/m2,该导电涂料有较好的应用前景。 相似文献
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Fan Yan Feng Bao Shuang Yan Zhenzhen Lan Fangqing Weng Hao Ding Rui Ma 《Iranian Polymer Journal》2018,27(12):939-949
A new UV-curable hyperbranched silicone epoxy acrylate resin was synthesized, and two kinds of carbon-based components, graphite and graphene, were applied as conductive materials. An ultraviolet-curing coating was successfully synthesized with using epoxy acrylate (EA) as oligomer, butyl acrylate (BA), and hyperbranched polysiloxane (HPSi) as monomers, benzoin dimethyl ether (DMPA), and benzophenone (BP) as photo-initiators, triethanolamine (TEA) as photo-activator, and other auxiliaries. In this work, the UV-curing efficiency and cured performance, together with the effect of different conductive fillers and the amount of conductive filler on the integrated performance of the composites, are investigated. The results show that as the HPSi content increases, the curing time is shortened. At the addition amount of 7.5%, it reaches the best conductivity, and at the addition amount of 10%, the corrosion resistance after curing is the best. However, the maximum tensile strength of 10.4% is obtained at 0.75 graphene. The FE-SEM micrographs of the UV-curable conductive coating show that with increasing incorporation of graphene into the substrate, the fractured surface of a rough surface changes to smooth one. Thermal properties of the films investigated using TGA curves indicate that graphene-doped conductive adhesive film (315.1 °C) possesses much higher heat resistance than that of graphite-doped conductive adhesive film. 相似文献
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为了解决糖衣片在临床使用中出现的问题,改变了包衣工艺,建立了护肝片薄膜包衣的最佳工艺条件并考察其稳定性。将护肝片的包衣工艺由糖衣改为薄膜衣,通过正交试验确定护肝片薄膜包衣的最佳包衣液浓度、喷量、喷雾风速温度,并用加速试验法和室温留样考察其稳定性。在包衣液浓度为13%、包衣液喷速为140 g/min、进风温度为75℃的条件下生产的薄膜衣片质量最佳,且按2010药典检验其稳定性合格。结果表明,此制备工艺稳定,可用于护肝薄膜衣片的工业生产。 相似文献
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A designated chemical structure, determined through the analysis of elements and groups on the surface of conductive carbon black (CB), alcohol‐soluble acrylic resin used for dispersion of conductive CB was successfully prepared based on the principles of similar structure complex well. The content of acrylic acid, glass transition temperature (Tg), molecular weight (Mw), self‐crosslinking degree, and N‐hydroxymethyl acrylamide content were investigated to optimize the electrical conductivity and dispersion effect of conductive CB in coating. The composites of acrylic resin and conductive CB were characterized by X‐ray photoelectron spectroscopy for surface chemical structure on CB, scanning electron microscopy for morphology of conductive coating, Fourier transform infrared for groups in acrylic resin, and digital multimeter techniques for surface resistivity of conductive coating. The optimum surface resistivity of the acquired conductive coating could reach 600 ohm/sq, showing an excellent conductive property. Moreover, the conductive coating still maintained a lower resistivity after salt spray and weather resistance test. POLYM. COMPOS. 36:467–474, 2015. © 2014 Society of Plastics Engineers 相似文献
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针对喷气燃料罐用导静电防腐蚀涂料的特殊要求,研制出一种浅色导静电防腐蚀涂料。对浅色导静电材料种类、用量以及分散剂对涂膜导静电性能的影响进行了试验。试验结果表明:不同种类浅色导静电材料对涂膜导静电性能影响程度不同;导静电材料用量对涂膜导静电性能的影响与导静电填料在涂料配方中的颜料体积浓度有关,综合考虑涂膜导静电和防腐蚀性能之间的关系,确定了导静电填料的最佳颜料体积浓度范围。性能测试表明:所研制涂料各项性能指标均达到国家标准。通过对浸泡过涂膜的喷气燃料的性能指标测试表明,该涂料各组分对喷气燃料无污染,可广泛用于喷气燃料舱、运油车、输送管线内壁。 相似文献
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对装饰用H62铜合金进行稀土镧-铈复合化学转化。对转化液组成和工艺条件进行正交优化,得到最优参数为:硝酸镧4 g/L,硝酸铈4 g/L,苯并三氮唑15 g/L,钼酸钠2 g/L,柠檬酸13 g/L,磺基水杨酸9 g/L,十二烷基苯磺酸钠0.4 g/L,温度53°C,时间4 min。该条件下所得La–Ce复合转化膜的厚度为6.2μm,耐硝酸点滴时间为23.16 s。中性盐雾试验、静态浸泡腐蚀试验和电化学阻抗谱测试结果均表明,单一镧盐或铈盐转化膜的耐蚀性优于无稀土转化膜,La–Ce复合转化膜的耐蚀性则最优。 相似文献
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以TiO2为基体,采用化学共沉淀技术制得复合导电粉末。利用正交试验得到优化的制备条件:复合反应体系组成为m(TiO2)∶m(SnCl4)∶m(SbCl3)=25∶15∶1,pH值为1.5,水解温度60℃,沉积SnCl4和SbCl3的水解产物于TiO2粒子表面,得到的包覆物在700℃下焙烧30 min,制备的复合导电粉末体的电阻率为77Ω.cm,粒径≤200 nm。将导电粉末与粘结树脂经球磨分散制得具有良好流动性的涂布液,在铝箔上能够制备得到电阻率低于108Ω.cm的导电涂层,满足制备有机光导体的要求,涂层表面平滑,无凹凸等缺陷。 相似文献