泉州师范学院学报
泉州師範學院學報
천주사범학원학보
Journal of Quanzhou Normal College
2011年
2期
59~64
,共null页
复配分散剂 Al2O3微粒 悬浮液 吸光度 化学复合镀
複配分散劑 Al2O3微粒 懸浮液 吸光度 化學複閤鍍
복배분산제 Al2O3미립 현부액 흡광도 화학복합도
mixed dispersant; Al2O3 particles; aqueous suspension; absorbance; composite electroless plating
研究用于Ni-P/Al2O3化学复合镀液的Al2O3悬浮液分散剂.将140 nm的α-Al2O3干粉与表面活性剂溶液混合,采用高速机械搅拌和超声波分散Al2O3悬浮液.通过分光光度计测定悬浮液吸光度,用PdCl2测试镀液稳定性;通过孔隙率试验和结合力试验测试化学复合镀层性能,用SEM和EDS测试镀层形貌和化学成分.试验结果表明,阴离子型表面活性剂与非离子型表面活性剂复配,对Al2O3悬浮液的分散稳定有较好的协同效果,适宜的复配分散剂组成为：20 mg/L十二烷基硫酸钠,150 mg/L Tween-80,80 mg/L聚乙二醇.用其配置2 g/L纳米Al2O3悬浮液,静置24 h后吸光度为1.595.该悬浮液配置的镀液稳定性试验时间为165 s,镀速为16.5μm/h.复合镀层中Al2O3粒子呈弥散状分布,Al2O3含量为0.77%.镀层光亮、致密.孔隙率为0.06个/cm2.结合力符合GB/T13913-92标准.该复配分散剂适应于Ni-P/Al2O3化学复合镀液.
研究用于Ni-P/Al2O3化學複閤鍍液的Al2O3懸浮液分散劑.將140 nm的α-Al2O3榦粉與錶麵活性劑溶液混閤,採用高速機械攪拌和超聲波分散Al2O3懸浮液.通過分光光度計測定懸浮液吸光度,用PdCl2測試鍍液穩定性;通過孔隙率試驗和結閤力試驗測試化學複閤鍍層性能,用SEM和EDS測試鍍層形貌和化學成分.試驗結果錶明,陰離子型錶麵活性劑與非離子型錶麵活性劑複配,對Al2O3懸浮液的分散穩定有較好的協同效果,適宜的複配分散劑組成為：20 mg/L十二烷基硫痠鈉,150 mg/L Tween-80,80 mg/L聚乙二醇.用其配置2 g/L納米Al2O3懸浮液,靜置24 h後吸光度為1.595.該懸浮液配置的鍍液穩定性試驗時間為165 s,鍍速為16.5μm/h.複閤鍍層中Al2O3粒子呈瀰散狀分佈,Al2O3含量為0.77%.鍍層光亮、緻密.孔隙率為0.06箇/cm2.結閤力符閤GB/T13913-92標準.該複配分散劑適應于Ni-P/Al2O3化學複閤鍍液.
연구용우Ni-P/Al2O3화학복합도액적Al2O3현부액분산제.장140 nm적α-Al2O3간분여표면활성제용액혼합,채용고속궤계교반화초성파분산Al2O3현부액.통과분광광도계측정현부액흡광도,용PdCl2측시도액은정성;통과공극솔시험화결합력시험측시화학복합도층성능,용SEM화EDS측시도층형모화화학성분.시험결과표명,음리자형표면활성제여비리자형표면활성제복배,대Al2O3현부액적분산은정유교호적협동효과,괄의적복배분산제조성위：20 mg/L십이완기류산납,150 mg/L Tween-80,80 mg/L취을이순.용기배치2 g/L납미Al2O3현부액,정치24 h후흡광도위1.595.해현부액배치적도액은정성시험시간위165 s,도속위16.5μm/h.복합도층중Al2O3입자정미산상분포,Al2O3함량위0.77%.도층광량、치밀.공극솔위0.06개/cm2.결합력부합GB/T13913-92표준.해복배분산제괄응우Ni-P/Al2O3화학복합도액.
In order to research dispersants of Al2O3 aquo-suspension which was suitable for Ni-P/Al2O3 composite electroless plating solution,different dispersants were added to 140 nm size of α-Al2O3 particles and mechanical mixing at a high speed and supersonic wave was used to disperse Al2O3 particles.The absorbance of the aquo-suspension was detected by the spectrophotometer.The stability of the baths was detected by PdCl2 solution.The feature of Ni-P/Al2O3 composite electroless coating were detected by the adhesion and porosity test.The morphologies and chemical composition of the coating were detected by scanning electron microscope（SEM）and EDS.It shows that,the mixed dispersant made up of anion and non-ionic surfactant are suitable to disperse Al2O3 particles.The appropriate composition of the mixed dispersant is 150 mg·L-1 Tween-80,75 mg·L-1 polyethylene glycol,20 mg·L-1 sodium lauryl sulfate.The absorbance of 2 g·L-1Al2O3 aquo-suspension with mixed dispersant is 1.595 after 24 hours.The stability time is 165 seconds and the deposition rate is 16.5 μm·h-1 in the composite electroless plating solution.The particles are distributed to be of diffusion and the content of Al2O3 is 0.77 percent in the coating.The coating is shiny and fine.The porosity of the coating is 0.06 spot·cm-2.The adhesion of the composite coating meets the specifications of the GB/T 13913-92.The mixed dispersant is suitable for Ni-P/Al2O3 composite electroless plating solution.
