【摘要】 采用液相法用有机物改性剂对Sn-8Zn-3Bi焊料进行表面包覆改性,以改善焊料的润湿性能及抗氧化性能。对包覆样品进行了红外光谱表征。考察了样品的抗氧化性、润湿性能和存储性能。结果表明:采用液相法可以实现在Sn-8Zn-3Bi焊料表面包覆有机物。以有机物C为改性剂,且用量为2%(质量分数)时得到的改性样品的润湿角θ为7.8°,铺展面积S为108.83mm2,而未被改性的焊料θ为10.74°,S为93.40mm2。更多还原

【Abstract】 Liquid phase method was used to coat the organic modifiers on the surface of Sn-8Zn-3Bi lead-free solder powder. The coated sample was characterized by IR and its behaviors of antioxidation and wettability were investigated. The results indicate that the coated sample greatly excels the un-coated Sn-8Zn-3Bi lead-free solder powder in the antioxidation and wettability. Organic compound C-coated 2% (mass fraction) sample, wetting angle θ is 7.8° and spreading area S is 108.83 mm2,but un-coated sample’s wetting angle and spreading area are 10.74° and 93.40 mm2, respectively.更多还原