摘要
由于橡胶工业的电镀黄铜工艺大量使用氰化物等剧毒物质,并且黄铜镀层的耐腐蚀性较低,降低了橡胶制品的性能,对此,为提高橡胶制品的使用寿命和减少镀黄铜、涂胶粘剂工艺所带来的污染,采用无污染和耐腐蚀性较好的化学镀镍代替镀黄铜工艺,以实现化学镀镍与橡胶的直接粘合。在试验过程中,进行了Q235钢化学镀镍工艺试验以及NiP镀层和橡胶的粘合试验,用扫描电子显微镜、电子探针和X射线衍射仪等仪器对化学镀NiP合金层的组织结构进行分析并对镀层进行全浸腐蚀试验。用平板硫化机对NiP镀层与橡胶进行硫化粘合试验,用橡胶拉力试验机测定镀层与橡胶的粘合强度。结果结明,所制备的NiP合金镀层具有非晶态结构,镀层均匀致密,与基体的结力好。在硫酸和磷酸等强酸性溶液中,NiP合金镀层的耐腐蚀性高于电镀黄铜层和Q235钢基体。将三聚硫氰酸及其衍生物作为胶料偶联剂添加于胶料中,实现了化学镀NiP合金层与橡胶的直接硫化粘合,粘合强度达到10kN/m。
The composition and structure of electroless Ni-P alloy plating were studied using scanning electron microscopy, electron probe microanalysis, and X-ray diffraction, while the corrosion resistance of the plating in sulfuric acid and phosphoric acid was investigated using immersion corrosion test. It was found that the amorphous Ni-P alloy plating had better corrosion resistance than electroplating brass coating. Moreover, it was feasible to realize the direct adhesion of the electroless NiP alloy plating and rubber by introducing tripolythiocyanic acid and its derivative as the coupling agent during the vulcanization process, and the adhesive strength was as much as 10 kN/m.
出处
《材料保护》
CAS
CSCD
北大核心
2006年第1期28-30,76,共4页
Materials Protection
基金
云南省自然科学基金资助项目(2000E0100M)
关键词
化学镀
NI-P合金
橡胶
粘合
electroless plating
Ni-P alloy
rubber
bonding
