摘要
相变材料及其微胶囊的制备是调温织物的核心技术。以聚氨酯(PU)为壁材,相变石蜡为芯材,合成了聚氨酯型相变微胶囊,并且将其应用于增强蚕丝织物的调温功能。生物显微镜和扫描电镜(SEM)图片显示合成的聚氨酯型相变微胶囊具有良好的表面形貌;激光粒度测试可见微胶囊的颗粒分布均匀,平均粒径为2.78μm;微胶囊的红外谱图证实其中有聚氨酯结构的生成;热性能表征结果显示该微胶囊相变温度和相变焓分别为23.80℃和70.31 J/g。经聚氨酯型相变微胶囊整理后的真丝绸具有较明显的调温效果,其相变温度和相变焓分别为24.28℃和1.82 J/g。
The preparation of phase change material and microcapsule is core technique of temperature-adaptable textile.In present study,a kind of microcapsule containing phase change material of paraffin was successfully synthesized with polyurethane（PU） as shell and was subsequently applied to enhance the temperature-adjusting capability of silk fabrics.The optical microscope and scanning electronic microscope pictures showed that this microcapsule has good surface configuration.Granularity detection with laser diameter distribution machine displayed that grains of the microcapsule distributed evenly with an average diameter of 2.78 μm.The infrared spectrum confirmed the formation of polyurethane in it.Differential scanning calorimeter results revealed that phase-changing temperature and enthalpy of the microcapsule was 23.80 ℃ and 70.31 J/g respectively.The silk fabrics treated with polyurethane-type phase-changing microcapsules had obvious effect in temperature adjustment.Its phase-changing temperature and enthalpy reached 24.28 ℃ and 1.82 J/g respectively.
出处
《蚕业科学》
CAS
CSCD
北大核心
2009年第3期588-593,共6页
ACTA SERICOLOGICA SINICA
关键词
微胶囊
相变材料
聚氨酯
预聚
调温真丝绸
Microcapsule
Phase change material
Polyurethane
Prepolymerize
Temperature-adaptable silk fabric
