Recycling plastic waste by mix with natural polymers for bio-plastic packaging produces plastics with high mechanical properties and easily degradable. In this study, the relation between the structural and the optical properties of composite SPF/starch/chitosan/polypropylene to the mechanical properties and degradation performance were analyzed. Structural and optical properties of composite bioplastic SPF/Starch/Chitosan/Polypropylene have analyzed using X-Ray diffraction (XRD), and Fourier transforms infrared (FTIR) spectroscopy, respectively. The composition was varied: the ratio between starch and chitosan are 35/65, 50/50, and 65/35 with additional SPF for each ratio is 1%, 3%, and 5%. The SPF effectively enhances the tensile strength due to the SPF's better dispersion and interaction in the starch/chitosan/polypropylene matrix. For SPF's effect on the degradation performance, the ratio starch/chitosan 50/50 increase for 1% SPF is 87.23%, for 3% SPF is 92.59%, and for 5 SPF is 94.12%. The refractive index (n), extinction coefficient (k), dielectric functions (ε), and energy loss function (Im (−1/ ε)) determined from the quantitative analysis of FTIR spectra by using Kramers–Kronig (K–K) relations. The crystalline phase increases with increasing the amount of SPF in composite bioplastic SPF/Starch/Chitosan /Polypropylene for ratio starch/chitosan is 35/65, which consistent with the distance between the wavenumber (D) of transversal and longitudinal optical phonon vibration mode become wider. We found that a good correlation between optical properties, structural properties, mechanical properties, and degradation performance for ratio starch/chitosan 35/65 and 50/50 with SPF 1% and 3% in the composite. Besides, the FTIR spectra could be useful for determining the optical phonon vibration, dielectric function, and energy loss function of composite bioplastic SPF/Starch/Chitosan /Polypropylene. The degradation performance by additional polypropylene from plastic waste shows a potential solution for decreasing plastic waste in the world.

通过与天然聚合物混合回收塑料废料以进行生物塑料包装，可以生产出具有高机械性能且易于降解的塑料。在这项研究中，分析了复合SPF /淀粉/壳聚糖/聚丙烯的结构和光学性能与机械性能和降解性能之间的关系。复合生物塑料SPF /淀粉/壳聚糖/聚丙烯的结构和光学性质分别使用X射线衍射（XRD）和傅里叶变换红外（FTIR）光谱进行了分析。组成是变化的：淀粉与壳聚糖之间的比例为35 / 65、50 / 50和65/35，每个比例额外的SPF为1％，3％和5％。由于SPF在淀粉/壳聚糖/聚丙烯基质中具有更好的分散性和相互作用，因此SPF有效地提高了拉伸强度。对于SPF对降解性能的影响，对于1％SPF，淀粉/壳聚糖50/50增加的比例为87.23％，对于3％SPF为92.59％，对于5 SPF为94.12％。折射率（n），消光系数（k），介电函数（ε）和能量损失函数（Im（-1 /ε））是通过使用Kramers-Kronig（K-K）关系对FTIR光谱进行定量分析而确定的。淀粉/壳聚糖的比例为35/65时，复合生物塑料SPF /淀粉/壳聚糖/聚丙烯中SPF的量越大，结晶相就越大，这与横向波数（D）与纵向光子声子振动模式之间的距离一致更宽的。我们发现，在复合物中，SPF为1％和3％的淀粉/壳聚糖比例为35/65和50/50时，光学性能，结构性能，机械性能和降解性能之间具有良好的相关性。此外，FTIR光谱对于确定光学声子振动，介电函数，生物塑料SPF /淀粉/壳聚糖/聚丙烯的合成与能量损失功能 塑料废料中额外的聚丙烯的降解性能显示了减少世界塑料废料的潜在解决方案。