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为了提高微/纳米纤维素表面化学镀层均匀性,改善金属化纤维素的分散程度,本文探究了微/纳米纤维素表面化学镀Ag/纳米Si C复合镀层的工艺和影响因素,并借助scanning electron microscope(SEM)和biological microscope(BMS)观察研究了纤维素表面形貌、组成成分和金属包覆程度。研究结果表明,纳米Si C浓度,稳定剂含量对于微/纳米纤维素化学镀Ag/纳米Si C金属复合镀层包覆程度有较大影响;纳米Si C的添加有利于减小复合镀层的晶粒尺寸,提高金属化纤维素的分散程度。纳米Si C的浓度达到0.6 g/L,稳定剂含量为60 mg/L时,纤维素表面金属包覆程度与分散形态达到最佳,此时,纤维素表面会形成一层均匀的金属镀层。
In order to improve the uniformity of electroless plating on micro / nano-cellulose surface and improve the degree of dispersion of metalized cellulose, this paper explores the process and influencing factors of Ag / nano-SiC composite coating on micro / nano-cellulose surface. The surface morphology, composition and metal coating degree of cellulose were observed by microscope (SEM) and biological microscope (BMS). The results show that the concentration of nano-SiC and stabilizer content have a great influence on the coating degree of Ag / nano-SiC composite coating on micro / nano-cellulose. The addition of nano-SiC helps to reduce the grain size of the composite coating Size, improve the degree of dispersion of metalized cellulose. When the concentration of nano-Si C reaches 0.6 g / L and the stabilizer content is 60 mg / L, the degree of surface coating and the dispersion of cellulose on the surface of cellulose are optimized. At this time, a uniform layer of metal coating will be formed on the surface of the cellulose.