Inadequate disposition and long period for degradation of Petroleum-derived polymers promote damages in the environment, which could be minimized by the use of biodegradable polymers such as starch and cellulose. Films of thermoplastic corn starch (TPS) and bacterial cellulose (BC) were used to produce sandwich panel biocomposite. RXD, SEM and FTIR were used to verify the transformation of TPS from native corn starch. TPS/BC is flexible and transparent, but it is less transparent that TPS and BC due to its multilayer format. TPS/BC presented similar thermal events to TPS and BC samples and thermal stability similar to TPS. The FTIR spectrum of the TPS/BC showed bands observed in the BC and TPS spectra. BC, TPS and TPS/BC showed faster water absorption in the initial stage reaching a stability at about 50 h and presenting Fickian behavior. TPS/BC showed lower water absorption and a good adhesion between the phases observed by SEM images, which can be associated to hydrogen interactions in the interface improving mechanical properties. TPS/BC showed an increase of about 3.6 times in the tensile strength compared to TPS, indicating that BC is a good reinforcement for TPS.

石油衍生聚合物的处置不充分和降解时间过长，会导致环境破坏，可通过使用可生物降解的聚合物（例如淀粉和纤维素）将其减至最小。热塑性玉米淀粉（TPS）和细菌纤维素（BC）的薄膜用于生产夹心板生物复合材料。RXD，SEM和FTIR用于验证TPS从天然玉米淀粉的转化。TPS / BC灵活且透明，但是由于其多层格式，因此它不如TPS和BC透明。TPS / BC的热事件与TPS和BC样品相似，热稳定性与TPS相似。TPS / BC的FTIR光谱显示在BC和TPS光谱中观察到的谱带。BC，TPS和TPS / BC在初始阶段显示出更快的吸水率，在约50 h达到稳定并表现出Fickian行为。TPS / BC显示出较低的吸水率和通过SEM图像观察到的各相之间的良好附着力，这可能与界面中的氢相互作用有关，从而改善了机械性能。与TPS相比，TPS / BC的抗张强度提高了约3.6倍，表明BC是TPS的良好增强材料。