With an intention to replace the synthetic non-biodegradable films in packaging applications, the polyvinyl alcohol (PVA) blended with green banana peel filler (GBPF), the biodegradable films were prepared by solution casting method with varying the concentrations of GBPF (5–25 wt%) in PVA matrix. The bio films were characterized by Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermo gravimetric analysis, transmissibility, FESEM, tensile test, film solubility and water absorption, water vapour transmission (WVT), soil burial test. Based on results obtained, the changes evidenced in the FTIR spectrum of this PVA/GBPF biofilms suggest that strong hydrogen bonding is taking place due to interfacial exchanges of GBPF in PVA matrix. The XRD results showed that crystallinity of bio films are greater than PVA. Thermo gravimetric analyses predicted that PVA/GBPF bio films are thermally stable up to 300 °C. The light is 45% for transmittance in the visible light region for the PVA/GBPF (25 wt%) bio film. The FESEM micrographs of biofilms palpable that formation of good physical interaction and compatibility between polymer matrix and GBPF up to 20 wt% of GBPF in PVA Matrix. FESEM results also confirmed that higher loading of GBPF (25 wt%) in PVA matrix, observed voids and agglomerations in film surface. The PVA/GBPF bio films with 20% of GBPF gave the highest tensile strength and young’s modulus 44.5 MPa and 66.7 GPA respectively compared to other samples. The elongation at break decreases with increases the GBPF in PVA Matrix up to 20 wt%.The slight decrease in mechanical properties perceived due to higher loading of GBPF (25 wt%) with PVA matrix. The solubility, water absorption and WVT of the PVA/GBPF bio films increased upon increasing the GBPF content. The biodegradation test results discovered that he highest weight loss at 42.3% (25 wt% of GBPF) probably due to the hydrophilic nature of GBPF in PVA matrix. On the whole, the present investigation confirmed that the PVA/GBPF bio films potential for possible utilization in active packaging applications attributable to its better mechanical, thermal, optical, water absorption and biodegradation properties.

为了在包装应用中替代合成的非生物降解膜，将聚乙烯醇（PVA）与绿色香蕉皮填料（GBPF）混合，通过溶液流延方法制备了可生物降解的膜，其中的GBPF浓度不同（5–25 wt％）在PVA基质中。通过傅立叶变换红外光谱（FTIR），X射线衍射（XRD），热重分析，透射率，FESEM，拉伸试验，膜溶解度和吸水率，水蒸气透过率（WVT），土壤掩埋试验对生物膜进行了表征。根据获得的结果，此PVA / GBPF生物膜的FTIR光谱中的变化表明，由于GBPF在PVA基质中的界面交换，发生了牢固的氢键结合。XRD结果表明生物膜的结晶度大于PVA。热重分析预测，PVA / GBPF生物膜在高达300°C的温度下具有热稳定性。对于PVA / GBPF（25 wt％）生物膜，该光在可见光区域的透射率为45％。可观察到的生物膜的FESEM显微照片表明，聚合物基质与GBPF之间的良好物理相互作用和相容性的形成高达PVA基质中GBPF的20 wt％。FESEM结果还证实，PVA基质中的GBPF含量较高（25 wt％），并且在膜表面观察到空隙和团聚。与其他样品相比，具有20％GBPF的PVA / GBPF生物膜具有最高的拉伸强度和杨氏模量，分别为44.5 MPa和66.7 GPA。断裂伸长率随PVA基质中GBPF的增加而增加，最高可达20 wt％。由于PVA基质中GBPF（25 wt％）的较高负载，机械性能略有下降。PGB / GBPF生物膜的溶解度，吸水率和WVT随着GBPF含量的增加而增加。生物降解测试结果发现，他的最大体重减轻为42.3％（GBPF的25 wt％），这可能是由于GBPF在PVA基质中的亲水性所致。总体而言，本研究证实，PVA / GBPF生物膜具有更好的机械，热，光学，吸水和生物降解性能，因此有可能在主动包装应用中使用。