塑料科技2025，Vol.53Issue(10)：112-117,6.DOI:10.15925/j.cnki.issn1005-3360.2025.10.022
超声外场作用对不同表面性质SiO2木薯淀粉复合材料结构和性能的影响
Effect of Ultrasonic External Field on Structure and Properties of SiO2 Cassava Starch Composites with Different Surface Properties
摘要
Abstract
The relationship between the structure and properties of thermoplastic starch/different surface properties silicon dioxide(TPS/SiO2)composites under ultrasonic external field and its influencing mechanism are still unclear.In the study,TPS/SiO2 composites were prepared by a torque rheometer,and the multi-scale structure and properties of thermoplastic starch(TPS)composites with hydrophilic SiO2(H10)and hydrophobic SiO2(L12)were analyzed after ultrasonic treatment.The results show that ultrasonic treatment will reduce the thermal stability of TPS matrix,but the introduction of H10 can significantly improve the thermal stability of materials by constructing a network structure.Microstructure characterization shows that ultrasonic treatment can lead to H10 agglomeration and induce micropores in the materials.Ultrasonic treatment promotes the rearrangement of starch molecular chain,and changes the crystal structure from C+VH+VA type to EH+VH type,and the contact angle of starch composites decreases.The study clarifies the synergistic mechanism between the surface properties of inorganic fillers and ultrasonic treatment,which provides a new idea for the functional design of starch-based composites.关键词
淀粉材料/二氧化硅/超声外场/回生/疏水性能Key words
Starch material/SiO2/Ultrasonic external field/Retrogradation/Hydrophobic property引用本文复制引用
梁泽升,刘钰馨..超声外场作用对不同表面性质SiO2木薯淀粉复合材料结构和性能的影响[J].塑料科技,2025,53(10):112-117,6.基金项目
广西自然科学基金项目(2025GXNSFAA069776) （2025GXNSFAA069776）
