环保型金属包装用气相防锈纸的研究

通过研究气相缓蚀剂钨酸钠、乌洛托品与尿素3者之间的最佳配比关系,开发了一种新型无毒的环境友好型气相防锈纸。通过快速气相防锈甄别试验,与市售气相防锈纸作对比,结果表明该防锈纸防锈效果良好,能够对所包装的金属产品进行较长期的防锈保护。     

气相防锈纸及气相防锈塑料薄膜

气相防锈纸一般是：表面印刷或反印刷聚乙烯薄膜／纸(各种规格的各种纸张均可)，含有气相防锈剂的水溶性乳胶涂布层。也可以把气相防锈剂掺混入EVA树脂中，在150～160℃温度下挤出流延在纸片的内层面上，同纸复合后形成气相防锈纸，这时的EVA还可以热封制袋。     

我国气相防锈纸的研究及应用

气相防锈纸是国家经委、国家科委共同确定“七五”期间重点推广项目之一。我厂是生产气相防锈纸的专业工厂,主要产品有气相防锈系列及苯钾酸钠防锈纸。气相防锈主要特点:能减缓金属大气腐蚀的物质称为大气缓蚀剂,按缓蚀剂的作用性能不同,大     

气相防锈无纺布

介绍了新一代气相缓蚀剂包装材料气相防锈无纺布的特点及其应用的研究。     

一种可喷涂于包装材料上水性气相防锈涂料的研制

介绍了一种应用于包装材料上水性气相防锈涂料的研制,提出了该涂料的最佳配方,对该涂料的防锈效果进行了加速试验、实地试验,结果表明本水性气相防锈涂料的防锈效果优良,应用于包装材料上,能够对所包装的金属产品进行长期的防锈.     

一种新型气相防锈包装材料——POP结构气相防锈材料

通过在产品结构中增加一层BOPP预印膜,设计新型气相防锈包装材料——POP结构气相防锈材料。该材料具有优异的防锈性能、物理性能及精美的外观效果,满足重型金属防护包装的同时满足客户对产品外观、印刷效果的要求。POP结构气相防锈材料设计新颖、结构合理、工艺稳定,作为高档的气相防锈包装材料具有广阔的市场前景。     

用于多种包装材料的气相防锈涂料的研制

金属表面防腐蚀涂层常常由于较薄、机械强度较差,在使用过程中容易损坏.气相缓蚀剂是一种非接触性的、防锈效果优异的缓蚀剂,而涂料使用非常方便,将二者结合,可以广泛用于各种金属的非接触防锈.在此基础上研制了一种应用于多种包装材料上的气相防锈涂料,提出了该涂料的最佳配方,对该涂料的防锈效果进行了定性和定量加速试验、实地试验和相容性试验.结果表明,该涂料能够应用于多种包装材料,能对所包装的金属产品有长期的防锈作用.     

航空气相防锈纸对有色金属的适应性

介绍TGJB611-88航空气相防锈纸的成分,以及其对黄铜、紫铜、镀镉及铸镁合金的适应性。航空气相防锈纸已成功地用于航炮及航空发动机的整机气相封存与包装。     

气相防锈纸的电化学评价研究

为了快速评价防锈纸的性能,采用电化学方法对气相防锈纸涂布液配方进行了研究和改进,介绍了一种气相防锈纸电化学评价的装置,通过双电极叠片大气腐蚀监测(ACM)电池,比较了气相防锈纸的气相缓蚀能力.结果表明,电化学方法与传统的湿热试验评价方法的结果是一致的,可用于分析缓蚀添加剂的作用机理、比较和快速评价气相防锈纸的气相缓蚀能力.     

气相防锈材料中亚硝酸盐含量快速半定量检测方法研究

研究了一种适合于应用现场的气相防锈材料亚硝酸盐含量快速半定量检测方法。亚硝酸盐在弱酸性条件下，与对氨基苯磺酸生成重氮盐，重氮盐再与N，N-二甲基-α-萘胺反应生成红色染料。该红色生成物与配色剂A溶液进行颜色复配，由于亚硝酸盐含量的不同，产生由无色至浅绿色、绿色、靛青色、浅紫色、紫色、紫红色等一系列色阶。亚硝酸盐含量不同，色差极为明显，利用目视比色法可快速判断亚硝酸盐的含量。经与国家标准检测方法对比，本方法的检测结果准确可靠。     

气相防锈胶带的研制及其防锈性能评价

为了解决某些特殊场合，如地下管道、国防坑道中的管线、电缆等的防锈问题，在研制油溶性气相缓蚀剂的基础上，以含不饱和键的丁基橡胶、多聚萜烯树脂、增塑剂、无机充填剂和稳定剂为粘结剂的基础配方，开发成功了多金属通用气相防锈胶带。同时采用盐雾箱加速试验和自然环境试验对其防锈效果进行了研究，结果显示，该气相防锈胶带对多种金属材料和合金具有优异的防锈效果。它不仅可以有效解决各种地下管道的防锈问题，还可以广泛用于各种不适宜涂油或包装的各种金属平面的防锈。     

缓蚀剂组合的容器负载方式对铝合金涂层耐蚀性能的影响

采用减压吸附和层层自组装技术在介孔二氧化硅纳米颗粒（mesoporous silica nanoparticles,MSN）上同时负载8-羟基喹啉（8-hydroxyquinoline,8-HQ）和苯并三氮唑（1H-benzotriazole,BTA）,制备缓蚀剂复合纳米容器（MSN-QB）,并将其添加至环氧涂层中从而获得新的涂层（MQB）。利用扫描电镜、透射电镜、傅里叶红外光谱、Zeta电位测试、热重分析等研究缓蚀剂负载前后纳米容器结构的变化和缓蚀剂的刺激响应释放行为,并通过电化学测试和盐雾实验研究层层自组装方式对涂层防护性能的提升。结果表明：MSN-QB中8-HQ和BTA的负载量分别为6.8%（质量分数,下同）和7.1%。MSN-QB具有pH响应特性,8-HQ和BTA在中性条件下释放均受到抑制,在碱性（pH=10）和酸性（pH=4）条件下均可释放,碱性条件下的释放速率更高。MQB涂层具有最佳的耐蚀性能,在3.5% NaCl溶液中浸泡20天后,MQB涂层的低频阻抗值（2.0×10⁹ Ω·cm²）最大,是缓蚀剂单独负载并添加到涂层中的两倍以上。     

金属包装用气相防锈纸缓蚀性能研究

目的研究基于苯并三氮唑(BTA)复配气相缓蚀剂涂布制成的气相防锈纸的缓蚀性能。方法以苯并三氮唑作为主缓蚀剂,采用正交试验与碘化钾、钨酸钠、乌洛托品、尿素进行复配,研究分析气相防锈纸在氯化钠溶液条件下对碳钢和10号钢的缓蚀性能。结果当苯并三氮唑、碘化钾、钨酸钠、乌洛托品、尿素的质量份配比为12∶12∶8∶12∶25时,对碳钢的缓蚀效率达到91.07%;当苯并三氮唑、碘化钾、钨酸钠、乌洛托品、尿素的质量份配比为12∶20∶8∶16∶25时,对10号钢的缓蚀效率达到90.17%。结论基于苯并三氮唑复配高效气相缓蚀剂涂布制备的气相防锈纸不仅绿色环保、安全无毒,而且缓蚀效率高于市售气相防锈纸,具有优良的防锈性能。     

Carbon dioxide corrosion of carbon steel and corrosion inhibition by natural olive leaf extract

The corrosion of carbon steel in carbon dioxide saturated chloride carbonate solution with and without olive leaf extract at 25 °C and 65 °C has been studied by linear polarization resistance technique, electrochemical impedance spectroscopy, scanning electron microscopy and Fourier transform infrared spectroscopy. In the absence of olive leaf extract, the corrosion products created under the testing conditions within 24 h at both testing temperatures have no significant protective properties. Measurements for uninhibited systems showed high corrosion current densities and low polarization resistances of carbon steel. Both linear polarization resistance technique and electrochemical impedance spectroscopy measurements reveal that olive leaf extract inhibits the carbon steel corrosion. The addition of a low‐concentration olive leaf extract decreases corrosion current densities, increases charge transfer and polarization resistance, resulting in more uniform and smoother steel surfaces. These effects are attributed to the adsorption of olive leaf extract on the carbon steel surface.     

反相乳液聚合法制备负载缓蚀剂的纳米SiO2粒子

采用反向乳液聚合方法,以环己烷作为连续相,缓蚀剂钨酸钠的水溶液作为分散相,Span80/OP-10作为复合乳化剂,四乙氧基硅烷(TEOS)作为单体,氨水作为催化剂进行反向乳液聚合,制备了包覆缓蚀剂钨酸钠的纳米SiO2粒子。采用动态光散射(DLS)及扫描电镜(SEM)表征了微胶囊粒子的粒径及分布。结合扫描电镜-能谱法(SEM-EDS)和扫描透射电镜-能谱法(STEM-EDS)表征了微胶囊表面和内部的元素组成。     

Exopolysaccharide produced by Vibrio neocaledonicus sp. as a green corrosion inhibitor: Production and structural characterization

An exopolysaccharide substances produced by Vibrio neocaledonicus sp. was introduced as a novel green inhibitor against the corrosion of carbon steel in artificial seawater and acidic media. The produced extracellular polymeric substance (EPS) is heterogeneous with composition of polysaccharides, nucleic acids and protein and average molecular weight of 29,572 Da. Adsorption of EPS on the metal surfaces and formation of Fe-EPS complexes acted as a barrier to prevent the oxygen penetration and hindered anodic and cathodic reactions. The inhibitory effect increases with increasing EPS concentration and exposure time. The highest corrosion inhibitory effect (95.1%) was observed for 10 g/L of EPS after 5 days of exposure in seawater. This is the highest inhibitory effect ever been reported by EPSs. While, the optimum concentration of EPS with the highest inhibition efficiency in 1 N H₂SO₄ was 1000 ppm. The influence of different parameters, such as initial pH, growth phase, various nitrogen and carbon sources on the production of EPS and its corrosion inhibitory effect were also investigated. According to results, the optimum culture medium for EPS production is contained artificial seawater including 5% mannitol as carbon source and 0.1% (NH₄)₂SO₄ as nitrogen source at pH = 8. This medium could produce 22.24 g/L EPS during 3 days’ incubation at 30 °C. The corrosion inhibitory efficiency of obtained EPS was 95.97%.     

Engineering performance of a new siloxane-based corrosion inhibitor

This paper presents an evaluation of a new non-toxic corrosion inhibitor on selected engineering properties of concrete mixes with different cementitious materials following a corrosion and durability study on concrete samples. Corrosion inhibitors consist of powders or solutions which are added to concrete when mixed to prevent or delay corrosion of steel by their reaction with ferrous ions to form a stable and passive ferric oxide film on the steel surface. The new inhibitor functions slightly differently and its corrosion inhibition effect is due to the formation of a siloxane coating on the steel surface. Therefore, the performance of the new inhibitor in concrete mixes manufactured with CEM I, PFA and GGBS cements was compared against a well known and established corrosion inhibitor on the market, namely calcium nitrite in terms of their effect on workability (measured in terms of slump), compressive strength, freeze–thaw durability and macro-cell corrosion. The results from this experimental programme have demonstrated that the new inhibitor is effective in reducing or slowing down corrosion. In addition, it was found that CEM I concrete containing the new inhibitor was less penetrable to chlorides than that without. A similar set of results was obtained for the freeze–thaw resistance, but the compressive strength was found to decrease with the addition of the new inhibitor. In the case of concretes containing PFA and GGBS, the new inhibitor was found to be less effective. Further, long-term investigations are recommended to assess the effectiveness over time.     

新型无溶剂双组分快固化环氧树脂防腐涂料的开发

采用E 5 1环氧树脂和T 31固化剂为主要原料 ,研制出一种新型无溶剂双组分快固化环氧树脂防腐涂料 ,该涂料具有优异的物理机械性能和耐化学腐蚀性能。本文介绍了涂料的制备工艺控制特点 ,并讨论了涂料原料的选择