公开(公告)号：US09441115B2

公开(公告)日：2016-09-13

申请号：US14358026

申请日：2011-11-14

申请人： Xiaoming Wu ,  Yong Lu ,  Hong Liu ,  Yinfeng Wu ,  Qianyuan Liu

发明人： Xiaoming Wu ,  Yong Lu ,  Hong Liu ,  Yinfeng Wu ,  Qianyuan Liu

IPC分类号： C09D5/08 ,  C23C22/60 ,  C23C22/68 ,  H05K3/28

CPC分类号： C09D5/086 ,  C23C22/60 ,  C23C22/68 ,  H05K3/282 ,  H05K2203/0786 ,  H05K2203/0793

摘要： The present invention relates to a water-based pore sealing agent enhancing PCB coating anti-oxidation and anti-corrosion properties, consisting of, by weight, 4-12 parts of a corrosion inhibitor, 15-25 parts of a mixed surfactants system, 10-20 parts of an ion chelating agent, 6-15 parts of a pH regulator, 20-40 parts of a builder, and the rest being purified water. When used to perform pore sealing on a PCB, the water-based pore sealing agent is diluted with purified water first to be diluted 10-100 times, preferably, 100/8-100/3 times. The pH value is 7-11, and is preferably 7.5-9.5. The surface tension is 18-28 dyn/cm. The pore sealing treatment uses a immersion process, and preferably ultrasonic waves are added at the same time to assist in cleaning the pores. For the pore sealing treatment, the temperature is 20-60° C., and the time is 60-150 seconds. After pore sealing, the temperature for drying the coated piece is 80-150° C., and the time is 60-120 seconds. The PCB treated with the water-based pore sealing agent of the present invention undergoes the neutral salt spray test, the nitric acid vapor test, the mixed gas test, and the sulfur dioxide and bonding tensile strength test, and the results have indicated that the anti-oxidation and anti-corrosion properties of the coating thereof are significantly enhanced.

摘要翻译： 本发明涉及一种提高PCB涂层抗氧化和抗腐蚀性能的水性密封剂，由重量比为4-12份的缓蚀剂组成，15-25份混合表面活性剂体系，10 -20份离子螯合剂，6-15份pH调节剂，20-40份助洗剂，其余为纯化水。 当用于在PCB上进行孔密封时，首先用净化水稀释水基密封剂以稀释10-100倍，优选为100 / 8-100 / 3倍。 pH值为7-11，优选为7.5-9.5。 表面张力为18-28dyn / cm。 孔密封处理使用浸渍法，优选同时加入超声波以辅助清洁毛孔。 对于孔密封处理，温度为20-60℃，时间为60-150秒。 孔密封后，涂层的干燥温度为80-150℃，时间为60-120秒。 用本发明的水性密封剂处理的PCB经过中性盐雾试验，硝酸蒸汽试验，混合气体试验，二氧化硫和接合拉伸强度试验，结果表明， 其涂层的抗氧化和抗腐蚀性能显着提高。

公开(公告)号：US20140314967A1

公开(公告)日：2014-10-23

申请号：US14358026

申请日：2011-11-14

申请人： Xiaoming Wu ,  Yong Lu ,  Hong Liu ,  Yinfeng Wu ,  Qianyuan Liu

发明人： Xiaoming Wu ,  Yong Lu ,  Hong Liu ,  Yinfeng Wu ,  Qianyuan Liu

IPC分类号： H05K3/28 ,  C09D5/08

CPC分类号： C09D5/086 ,  C23C22/60 ,  C23C22/68 ,  H05K3/282 ,  H05K2203/0786 ,  H05K2203/0793

摘要： The present invention relates to a water-based pore sealing agent enhancing PCB coating anti-oxidation and anti-corrosion properties, consisting of, by weight, 4-12 parts of a corrosion inhibitor, 15-25 parts of a mixed surfactants system, 10-20 parts of an ion chelating agent, 6-15 parts of a pH regulator, 20-40 parts of a builder, and the rest being purified water. When used to perform pore sealing on a PCB, the water-based pore sealing agent is diluted with purified water first to be diluted 10-100 times, preferably, 100/8-100/3 times. The pH value is 7-11, and is preferably 7.5-9.5. The surface tension is 18-28 dyn/cm. The pore sealing treatment uses a immersion process, and preferably ultrasonic waves are added at the same time to assist in cleaning the pores. For the pore sealing treatment, the temperature is 20-60° C., and the time is 60-150 seconds. After pore sealing, the temperature for drying the coated piece is 80-150° C., and the time is 60-120 seconds. The PCB treated with the water-based pore sealing agent of the present invention undergoes the neutral salt spray test, the nitric acid vapor test, the mixed gas test, and the sulfur dioxide and bonding tensile strength test, and the results have indicated that the anti-oxidation and anti-corrosion properties of the coating thereof are significantly enhanced.

摘要翻译： 本发明涉及一种提高PCB涂层抗氧化和抗腐蚀性能的水性密封剂，由重量比为4-12份的缓蚀剂组成，15-25份混合表面活性剂体系，10 -20份离子螯合剂，6-15份pH调节剂，20-40份助洗剂，其余为纯化水。 当用于在PCB上进行孔密封时，首先用净化水稀释水基密封剂以稀释10-100倍，优选为100 / 8-100 / 3倍。 pH值为7-11，优选为7.5-9.5。 表面张力为18-28dyn / cm。 孔密封处理使用浸渍法，优选同时加入超声波以辅助清洁毛孔。 对于孔密封处理，温度为20-60℃，时间为60-150秒。 孔密封后，涂层的干燥温度为80-150℃，时间为60-120秒。 用本发明的水性密封剂处理的PCB经过中性盐雾试验，硝酸蒸汽试验，混合气体试验，二氧化硫和接合拉伸强度试验，结果表明， 其涂层的抗氧化和抗腐蚀性能显着提高。