蓄热调温羽绒羽毛的制备与性能

Preparation and Performance of Thermal Storage and Temperature Regulation Down Feather

以羽绒羽毛纤维(down feather)作为基体,在其表面合成聚多巴胺(PDA)并黏附无机二氧化硅(SiO_(2))为壳材、以正十八烷为有机芯材的相变微胶囊(MEPCM),制备了蓄热调温羽绒羽毛(MEPCM/down feather)。首先利用扫描电子显微镜、粒径分析仪、热重分析仪及防泄漏测试对微胶囊的形貌结构及性能进行了表征,结果表明,制备的微胶囊平均粒径为421.9 nm,且成球性能良好;该微胶囊具有良好的包覆性及形状稳定性。其次,对蓄热调温羽绒羽毛形貌结构及性能进行了测试分析,并考察了MEPCM的添加量对羽绒羽毛性能的影响。结果表明,微胶囊均匀且有效黏附在羽绒羽毛上;当MEPCM的比例为10%,制得的蓄热调温羽绒羽毛熔融温度为26.3℃、熔融热焓为10.9 kJ/kg;且呈现良好的亲水性能、抑菌性能和热管理能力,水洗5次后,熔融热焓仍然能达到8.3 kJ/kg。

Polydopamine(PDA)was synthesized on the surface of down feather and adhered to the phase change microcapsule(MEPCM)consisted of inorganic silica(SiO_(2))shell and n-octadecane(n-OD)core to prepare thermal storage and temperature regulation down feather(MEPCM/down feather).Firstly,the morphology,structure and properties of the microcapsules were characterized by scanning electron microscopy,particle size analysis,thermogravimetric analyzer and leakproof test.The results show that the average particle size of the microcapsule is 421.9 nm,and the microcapsules display excellent spherical shape and exhibit good packing and shape stabilization properties.Secondly,the morphology,structure and properties of the fabricated MEPCM/down feather were tested,and the effect of the amount of MEPCM on the properties of the MEPCM/down feather was also investigated.The results show that the microcapsules adhered to the surface of the down feather uniformly and effectively,the fabricated MEPCM/down feather with 10%MEPCM has a melting temperature of 26.3℃ and a melting heat enthalpy of is 10.9 kJ/kg;meanwhile,it also demonstrates good hydrophilic property,bacteriostatic performance and thermal management capability,the thermal enthalpy could still reach 8.3 kJ/kg after washing 5 times.