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以自制杂化双向拉伸聚丙烯/氧化硅(BOPP/SiOx)有机/无机杂化膜为基材,由喷墨打印机直接在杂化膜表面打印色阶图案,制备出对紫外光强度呈梯度透过的梯度光掩模;通过此掩模控制,在双向拉伸聚丙烯(BOPP)和聚对苯二甲酸乙二醇酯(PET)表面实施受限光催化氧化(CPO)光感应羟基化反应、受限光接枝丙烯酸(AA)以及表面沉淀紫外光接枝丙烯酰胺(AM)聚合反应.全反射红外光谱(ATR-FTIR)、X射线光电子能谱(XPS)、水接触角、荧光显微镜及扫描电镜(SEM)分析表明,分别得到表面能、接枝层厚度及接枝链密度呈梯度分布的功能性梯度表面.
Using self-made hybrid BOPP / SiOx hybrid organic / inorganic hybrid film as substrate, the inkjet printer directly printed the color gradation pattern on the surface of the hybrid film to prepare a UV- Through a gradient photomask; by this mask control, a photo-induced hydroxylation of constrained photocatalytic oxidation (CPO) was carried out on the surfaces of biaxially oriented polypropylene (BOPP) and polyethyleneterephthalate (PET) (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), water contact angle, fluorescence Microscopy and scanning electron microscopy (SEM) analysis indicated that functional graded surfaces with gradient distribution of surface energy, graft layer thickness and graft chain density were obtained respectively.