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废弃咖啡渣再利用:制备高效咖啡因基 PVA 复合薄膜用于紫外线防护
研究人员制备 PVA / 咖啡因复合薄膜,发现 1.00 wt% 咖啡因能显著提升 PVA ... 采用傅里叶变换红外光谱(Fourier transforms infrared spectroscopy,FTIR)分析复合薄膜中化学键的变化情况;借助 X 射线衍射(X-ray diffraction,XRD)技术研究薄膜的晶体结构;使用扫描电子显微 ...
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