To develop an adequate matrix polymer for agricultural or packaging applications, thermoplastic starch (TPS)/chitosan composites were prepared in a wide composition range either by injection moulding or in an internal mixer followed by compression moulding. Chitosan behaves as filler forming dispersed structure in TPS samples prepared by thermomechanical methods without any additional acid. In the TPS composites chitosan has a considerable reinforcing effect. Regardless of the production methods, the Young's modulus and tensile strength increase significantly. Furthermore, addition of chitosan has a considerable effect on the water sorption of TPS-based composites. Chitosan slightly decreases the maximum water uptake of composites and reduces significantly the water sorption rate especially in the samples prepared by injection moulding. Besides, chitosan can greatly reduce the shrinkage of injection moulded TPS composites and delay the appearance of mould on the surface even at high humidity.

为了开发适合农业或包装应用的基体聚合物，热塑性淀粉 (TPS)/壳聚糖复合材料通过注射成型或在密炼机中然后压缩成型制备成广泛的组成范围。壳聚糖作为填料在通过热机械方法制备的 TPS 样品中形成分散结构，无需任何额外的酸。在TPS复合材料中壳聚糖具有相当大的增强作用。无论采用何种生产方法，杨氏模量和拉伸强度都显着增加。此外，壳聚糖的添加对 TPS 基复合材料的吸水率有相当大的影响。壳聚糖略微降低了复合材料的最大吸水率并显着降低了吸水率，尤其是在通过注塑制备的样品中。