【摘要】 以市售聚硅氧烷乳液为基料,辅以金属盐催化剂和醇胺类改性植酸水溶性缓蚀剂制备的水溶性有机硅憎水剂,用以处理A3钢磷化试样表面.考察了催化剂质量分数、植酸质量分数、植酸溶液的pH值、乳液与改性植酸的比率对憎水剂憎水处理效果及稳定性的影响;探讨了不同热处理温度、浸渍时间及热处理时间等工艺条件下憎水剂对金属表面憎水性的影响并确定了憎水剂配方和憎水处理工艺.结果表明,用该憎水剂处理的A3钢磷化试样接触角可达132°左右,A3钢磷化处理表面的耐腐蚀性能得到明显改善.更多还原

【Abstract】 An aqueous organic silicone hydrophobic agent which was based on the matrix of a commercially available silicone emulsion and was prepared in the presence of a metal salt catalyst and a water soluble corrosion inhibitor of alcoholamine modified phytic acid was applied to treat A3 steel specimen.Factors such as the catalyst content,the modified phytic acid concentration,pH of the phytic acid solution and ratio of the emulsion to the phytic acid acting on water-repellent treating effect and stability of the hydrophobic agent were examined.Effect of the hydrophobic agent on the water-repellency under the process parameters such as different heat-treatment temperatures,dipping time and heat-treating time was discussed and the appropriate formula and procedure were determined as well.The results demonstrate that the contact angle of the said hydrophobic agent treated specimen is as high as 132°,while the corrosion resistance of the phosphatized steel surface after treatment by the said hydrophobic agent is enhanced obviously.更多还原