大连工业大学学报2025，Vol.44Issue(5)：359-364,6.DOI:10.19670/j.cnki.dlgydxxb.2025.6004
具有近红外光响应的海藻酸钙相变纤维的制备及表征
Preparation and characterization of phase-changing fibers from calcium alginate with near-infrared light response
摘要
Abstract
The multi-functionalization of seaweed fibers was successfully achieved through simple blend spinning process,which endowed them with both near-infrared light responsiveness and phase change energy storage properties.The calcium alginate fibers(PEG/CA/TA-Fe3+/PVA)with near-infrared light response and phase change energy storage function were prepared using sodium alginate(SA),polyethylene glycol(PEG)and tannic acid iron complex(TA-Fe3+)compositing solution as spinning solution,with polyvinyl alcohol(PVA)and calcium chloride as coagulation bath.The TA-Fe3 composites in composite fibers not only served as photothermal responsive agent,but also acted as physical crosslinking agent.The influence of TA-Fe3+composites contents on the mechanical properties,surface morphology,thermal stability,phase transition performance,and near-infrared light response of PEG/CA/TA-Fe3+/PVA fibers were studied by scanning electron microscopy,infrared spectroscopy,single fiber strength testing machine,thermogravimetric analyzer and differential scanning calorimetry.The experimental results showed that the mechanical strength and the near-infrared light response intensity of the fibers were significantly enhanced by addition of TA-Fe3+composites,but their phase changing energy storage capacity was reduced.The increase rate of fibers temperature could be controled by the regulation of TA-Fe3+contents in the PEG/CA/TA-Fe3+/PVA fibers.The findings would provide theoretical datas for the application of functional fibers in environments with requirements for temperature.关键词
海藻酸钙/近红外光响应/相变纤维/湿法纺丝Key words
calcium alginate/near-infrared light responsiveness/phase-changing fibers/wet spinning分类
化学化工引用本文复制引用
冯世达,陈晓宇,王帅,于跃..具有近红外光响应的海藻酸钙相变纤维的制备及表征[J].大连工业大学学报,2025,44(5):359-364,6.基金项目
辽宁省教育厅高校科研基金项目(J2020103). （J2020103）
