Abstract:
Polybutylene adipate-co-terephthalate (PBAT) was used in an effort to improve the properties of polybutylene succinate (PBS). The resultant blend consisting of PBS/PBAT (70/30) was reinforced with lignin at different loadings (5 to 15 wt.%) and zinc (ZnO) nanoparticles (1.5 wt.%). Hot melt extrusion and injection moulding were used to prepare the hybrid composites. The mechanical, thermal, physical, self-cleaning, and antimicrobial properties of the resultant hybrid composites were investigated. The transmission electron microscopy (TEM) results confirmed that ZnO was successfully prepared with average diameters of 80 nm. Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) confirmed that there were interactions between the fillers and the blend. The tensile strength and elongation at the break of the resultant materials decreased with increasing the loadings, while the tensile modulus showed the opposite trend. The melting behaviour of the blend was practically unaffected by incorporating lignin and ZnO nanoparticles. In addition, the incorporation of fillers reduced the thermal stability of the materials. Furthermore, the incorporation of ZnO nanoparticles introduced photocatalytic properties into the polymer blend, rendering it to be a functional self-cleaning material and enhancing its antimicrobial activities.
摘要:
使用聚己二酸丁二醇酯-共对苯二甲酸酯(PBAT)来努力改善聚丁二酸丁二醇酯(PBS)的性能。将由PBS/PBAT(70/30)组成的所得混合物用木质素以不同的负载量(5至15wt。%)和锌(ZnO)纳米颗粒(1.5wt。%).采用热熔挤出和注射成型制备了杂化复合材料。机械的,热,物理,自我清洁,并研究了所得杂化复合材料的抗菌性能。透射电子显微镜(TEM)结果证实,成功制备了平均直径为80nm的ZnO。傅里叶变换红外(FTIR)光谱和X射线衍射(XRD)证实填料和共混物之间存在相互作用。所得材料的拉伸强度和断裂伸长率随载荷的增加而降低,而拉伸模量则表现出相反的趋势。共混物的熔融行为实际上不受掺入木质素和ZnO纳米颗粒的影响。此外,填料的加入降低了材料的热稳定性。此外,ZnO纳米颗粒的掺入引入了聚合物共混物的光催化性能,使其成为功能性自清洁材料并增强其抗菌活性。