水性丙烯酸/石墨导电涂料

以水性丙烯酸树脂为基料，石墨为导电填料，制备了一种水性导电涂料，并对其基本理化性能参数进行了测试。讨论了填料和溶剂百分含量、石墨粒径及分散剂对涂料性能的影响。     

水性丙烯酸／石墨导电涂料

北京理工大学爆炸灾害预防控制国家重点实验室的丛晓民等，以水性丙烯酸树脂为基料，石墨为导电填料，制备了一种水性导电涂料，并对其基本理化性能参数进行了测试。讨论了填料和溶剂百分比含量、石墨粒径及分散剂对涂料性能的影响。     

有机硅耐高温涂料（油漆）（CN1560156）

一种有机硅耐高温涂料（油漆），选择特定的有机硅树脂为成膜物质，填料为滑石粉和玻璃粉，溶剂为二甲苯，颜料为石墨和铬铁黑，有机硅耐高温涂料的总重量百分配比为：有机硅树脂：30—40％，铬铁黑：25—35%，滑石粉：10。209／0，玻璃粉：10—15％，二甲苯：10—15％，     

环境友好型氟碳导电涂料的研究

制备了一种以水性氟碳乳液为基料，石墨为填料的水性导电涂料。该水性氟碳导电涂料既是一种环保型涂料，又具优异的性能。本文从石墨质量分数、分散剂、石墨粒径等方面对导电性能的影响进行考察，并给出该导电涂料的综合指标。     

雷达罩用新型抗静电防腐耐磨涂料的研制

以含氟二元醇树脂、六亚甲基二异氰酸酯缩二脲溶液为原料,二月桂酸二丁基锡为催化剂制备了含氟聚氨酯树脂,并以其为基本成膜物,并掺入耐高温填料二氧化钛,导电填料纳米ATO（掺锑二氧化锡）,聚四氟乙烯微粉,同时加入超分散剂、溶剂等制备了雷达罩用新型抗静电防腐耐磨涂料。该涂料不仅具有优良的抗静电性、弹性及良好的附着力,同时还具有很好的防腐蚀性、耐老化性和耐磨性,是一类新型的多功能涂料。     

氯醚树脂耐腐蚀导电涂料的研制

采用氯醚树脂为基料,复合导电石墨、溶剂和助剂所制备的导电涂料,体积电阻率可达0.1Ω·cm-1,耐高温(200～300℃)、耐腐蚀。经试验,该涂料是一种可长期在严酷环境中使用的性能优越的导电材料。     

膨胀石墨／叔氟乳液复合导电涂料的研究

以水性叔氟乳液为基料,膨胀石墨为填料,并加入其它填料和助剂,制备了一种水性叔氟／膨胀石墨复合导电涂料。从膨胀石墨质量分数、分散剂、温度等方面对导电性能的影响进行考察,并给出该导电涂料的综合指标。     

环境友好型氟碳导电涂料的研究

制备了一种以水性氟碳乳液为基料,石墨为填料的水性导电涂料.该水性氟碳导电涂料既是一种环保型涂料,又具优异的性能.本文从石墨质量分数、分散剂、石墨粒径等方面对导电性能的影响进行考察,并给出该导电涂料的综合指标.     

炭黑石墨填充复合导电涂料的制备研究

制备了一种以炭黑和石墨为导电填料的复合型导电涂料,分别研究了炭黑填充和石墨填充的导电涂层性能,确定了采用炭黑、石墨混合填充的导电涂料体系,详细研究了混合填料的比例及含量对涂层导电性能的影响。     

浅色耐高温抗静电涂料的制备及性能检测

以3,3＇,4,4＇-联苯四甲酸二酐、4,4＇-二氨基二苯醚、1,3-双（3-氨丙基）-1,1,3,3-四甲基二硅氧烷为原料,二甲基甲酰胺为溶剂制备了聚（酰胺-硅氧烷）共聚物,并以该硅氧烷改性聚酰胺为基本成膜物,以纳米ATO（掺锑二氧化锡）为导电粒子,并掺入耐高温TiO2和聚四氟乙烯微粉,同时加入超分散剂、溶剂等制备了浅色耐高温抗静电涂料。该涂料不仅具有良好的抗静电性能和耐高温性能,同时还具有很好的装饰性。     

关于逆流冷却塔雨区阻力计算的探讨

在逆流式冷却塔的空气阻力计算中,常常忽略了雨区阻力的计算,包括国标规范与高等教育的教科书等权威文献也未提及,根据工业塔的实测,这部分阻力占全塔空气阻力的1/6左右。本文根据冷却塔设计与运行的实践,并结合国内外学者对此的实验研究成果,经分析总结,给出了一个较为系统可行的计算方法,经验证与工业塔实测基本吻合,可供冷却塔设计中参考使用。     

耐高温尼龙聚邻苯二甲酰胺的研究进展

综述了聚邻苯二甲酰胺(PPA)的特性和应用,对部分PPA新品种制备方法及表征测试作了介绍,还介绍了PPA在耐热性、吸水性、尺寸稳定性、耐焊锡性等方面的研究进展。     

Improving the bending and corrosion resistance of an enamel by the addition of β-Si3N4 whiskers

Enamel–metal composite materials with high strength and corrosion resistance are often used for fabricating enameled pressure vessels for pharmaceutical and chemical production. However, the low bending resistance of the enamel can result in the cracking and delamination of the enamel layer, leading to the loss of corrosion resistance of the enameled pressure vessel, which can result in accidents. Here, based on the goal of increasing the bending resistance of the enamel to prolong its service life, the effect of β-Si₃N₄ whiskers on the mechanical properties of enamel was studied by three-point bending tests. The effect of β-Si₃N₄ whiskers on the acid and alkali corrosion resistance of enamel was studied using aqueous H₂SO₄ and NaOH solutions, respectively. A sudden change in the force of an enameled sample under the three-point bending test was used to evaluate the bending resistance of the enamel–metal samples, and can also be used to evaluate the mechanical properties of other comparable materials. With the addition of 0.5 wt% β-Si₃N₄ whiskers, the bending resistance was significantly improved, along with the acid and alkali corrosion resistance. These findings are expected to provide guidance for the design and production of enamel-metal vessels with improved performance that can significantly lengthen the service life of enameled pressure vessels and reduce the occurrence of accidents.     

电阻器专用涂料(Ⅰ)

介绍了电阻涂料底漆、面漆的种类和各类电阻涂料底漆和面漆的组成、特点及技术规格。同时,还简介了环氧型、油墨型及有机硅型标志涂料的特点和技术指标。     

Effect of partial substitution of alumina–chromium slag for Al2O3 on microstructures and properties of Al2O3–SiC–C trough castables

Alumina–chromium slag (ACS), a cheap and abundant refractory raw material comprising aluminum–chromium oxides and β-Al₂O₃, is a byproduct of ferrochrome smelting. For this reason, we investigated the relationships between composition and mechanical properties, abrasion resistance, oxidation resistance, and resistance to iron slag erosion for Al₂O₃–SiC–C trough castables in which ACS was substituted for alumina. Due to the presence of β-Al₂O₃ in ACS, the aluminum-chromium slag reacted with SiO₂ to form a low-melting phase of albite and promoted the formation of mullite, which filled the pores at high temperatures and reduced the porosity, thereby promoting densification and strengthening of the sample. The cold mechanical properties of the sample and the normal temperature wear resistance were enhanced, but the high-temperature mechanical properties and the resistance to iron slag corrosion of the sample were impaired. According to the results of the anti-oxidation experiment, the presence of β-Al₂O₃ in the ACS reduced the porosity and made the sample more dense, which remarkably improved oxidation resistance of the sample. For industrial production requirements, ACS substitution should not exceed 48?wt% due to of thermomechanical properties and anti-slag corrosion performance in Al₂O₃–SiC–C trough castables.     

Enhancement of thermal shock and slag corrosion resistance of MgO–ZrO2 ceramics by doping CeO2

The purpose of this paper was to develop ceramics materials with high thermal shock resistance and corrosion resistance for preparing gas blowing components. In this paper, MgO-rich MgO–ZrO₂ ceramics were obtained by using MgO powder and ZrO₂ powder as starting materials and CeO₂ as an additive. Changes in the properties in terms of thermal shock resistance, mechanical properties, and slag corrosion-resistance with chemical compositions were examined correlated to microstructure and phase changes. Especially, the effect of doping CeO₂ on phase transition of zirconia in MgO-rich system was discussed. The results showed that doping amount of CeO₂ significantly improved properties of MgO–ZrO₂ ceramics. Especially when doping amount of CeO₂ was 2 wt%, residual strength ratio was enhanced over 100% after thermal shock testing. In samples doped with CeO₂, ZrO₂ was stable in cubic or tetragonal form due to complete solution of CeO₂, which was important reason for the improvement of various properties of MgO–ZrO₂ ceramics.     

钢骨架塑料复合管的性能和应用

对钢骨架塑料复合管与其他管道的性能进行了比较,对比结果证明:钢骨架塑料复合管具有耐压、耐磨、耐腐蚀、抗蠕变、安装方便以及较高的性价比等特点。     

硅树脂及其涂料的研究新进展

综述了近十年来国内外耐热、耐腐蚀、耐候性硅树脂、改性硅树脂及其涂料的研究新进展；指出了硅树脂及其涂料的发展趋势。     

氧化镁-尖晶石浇注料的组成与性能的关系

以中档烧结镁砂、矾土基尖晶石和电熔白刚玉为主要原料,制备了不同基质组成的试样,并研究了浇注料的流动性、强度、永久线变化率、抗渣性和抗热震性。结果表明：基质的组成（特别是Ａｌ２Ｏ３／ＭｇＯ比）对浇注料的抗渣性、线变化率、抗剥落性和热震稳定性有显著影响,通过调整Ａｌ２Ｏ３／ＭｇＯ比可制得综合性能优良的氧化镁－尖晶石浇注料     

无醛防皱整理剂的研究进展

传统的防皱整理的发展历程及面临的新问题，阐述了多元羧酸类防皱整理剂作为棉织物理想的无甲醛防皱整理剂的防皱机理及性能，但由于它存在价格贵、织物泛黄色变、耐洗牢度差、含磷催化剂污染环境等问题，需要有效解决。最后，指出了无醛防皱整理今后的发展方向。