聚脲微胶囊相变材料的制备及在棉织物上的应用
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摘要
以硬脂酸丁酯为芯材,异氟尔酮二异氰酸酯(IPDI)和二乙烯三胺(DETA)为反应单体,制备聚脲微胶囊,并通过涂层法整理棉织物。通过红外光谱仪和热重分析仪对微胶囊进行结构表征和热稳定性分析。结果表明,所制备的微胶囊为聚脲结构的壳体,可耐200℃以上的高温;采用扫描电镜对微胶囊及涂层整理织物进行观察,发现微胶囊表面光滑致密,呈球形分布,整理织物中的微胶囊分布效果较好。当织物3.5 g,微胶囊0.8 g,黏合剂1.0 g时,整理织物手感良好,经5次水洗后微胶囊的残留率高于90%,熔融热焓为22.12 J/g,整理织物具有良好的调温效果。
Polyurea microcapsules are prepared with butyl stearate as the core material, isophorone diisocyanate(IPDI) and diethylenetriamine(DETA) as the reaction monomers. The prepared microcapsules are applied to the fabric by coating method. The structure and thermal stability of the microcapsules are characterized by FTIR and TG. The results show that the prepared microcapsules have the polyurea structure and can withstand temperatures above 200 ℃ with good thermal stability. SEM is used to observe the microcapsules and coating fabrics. The surface of the microcapsules is smooth and dense with a spherical distribution. The distribution of microcapsules in the finished fabrics is better. When the fabric is 3.5 g, the amount of microcapsules is 0.8 g, and the amount of adhesive is 1.0 g, the hand feel of finished fabric is good. After 5 times of washing, the residual microcapsules are higher than 90%, and the melting enthalpy is 22.12 J/g. The finishing fabric has a good thermos-regulated effect around the phase transition temperature.
Polyurea microcapsules are prepared with butyl stearate as the core material, isophorone diisocyanate(IPDI) and diethylenetriamine(DETA) as the reaction monomers. The prepared microcapsules are applied to the fabric by coating method. The structure and thermal stability of the microcapsules are characterized by FTIR and TG. The results show that the prepared microcapsules have the polyurea structure and can withstand temperatures above 200 ℃ with good thermal stability. SEM is used to observe the microcapsules and coating fabrics. The surface of the microcapsules is smooth and dense with a spherical distribution. The distribution of microcapsules in the finished fabrics is better. When the fabric is 3.5 g, the amount of microcapsules is 0.8 g, and the amount of adhesive is 1.0 g, the hand feel of finished fabric is good. After 5 times of washing, the residual microcapsules are higher than 90%, and the melting enthalpy is 22.12 J/g. The finishing fabric has a good thermos-regulated effect around the phase transition temperature.
引文
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[2]马保国,金磊,蹇守卫.石蜡相变微胶囊的制备及在建材中的应用[J].建材世界,2009,30(1):51-55.
[3]IQBAL K,SUN D.Development of thermo-regulating polypropylene fibre containing microencapsulated phase change materials[J].Renewable Energy,2014,71(11):473-479.
[4]SARIER N,ONDER E.Organic phase change materials and their textile application:An overview[J].Thermochimica Acta,2012,540:7-60.
[5]钱惺悦,纪俊玲,戴萍,等.微胶囊相变材料PCM在织物上的应用[J].印染,2014,40(7):12-15.
[6]宋庆文,陆少锋,孟家光,等.纳米复合相变微胶囊涂层织物的热缓冲性能[J].印染,2017,43(5):6-9.
[7]刘元军,王雪燕,孙小芳,等.相变微胶囊的制备及其在牛仔布上的应用[J].印染,2012,38(9):14-18.
[8]乔文静,裴广玲.相变调温织物的制备及其性能[J].印染,2012,38(4):10-13.
[9]宋庆文,李毅,邢建伟,等.PCM微胶囊改善纺织品的温度调节性能研究[C]//功能性纺织品及纳米技术研讨会.2005.
[10]BARTKOWIAK G,DABROWSKA A,MARSZALEK A.Analysis of thermoregulation properties of PCM garments on the basis of ergonomic tests[J].Textile Research Journal,2012,83(2):148-159.
[11]WANG H P,YUAN Y C,RONG M Z,et al.Microencapsulation of styrene with melamine-formaldehyde resin[J].Colloid and Polymer Science,2009,287(9):1089-1097.
[12]SUMIGA B,KNEZ E,VRTACNIK M,et al.Production of Melamine-Formaldehyde PCMMicrocapsuleswith Ammonia Scavenger used for Residual Formaldehyde Reduction.[J].Acta Chimica Slovenica,2011,58(1):14-25.
[13]JAMEKHORSHID A,SADRAMELI S M,FARID M.A review of microencapsulation methods of phase change materials(PCMs)as a thermal energy storage(TES)medium[J].Renewable and Sustainable Energy Reviews,2014,31:531-542.
[14]CHEN L,XU L,SHANG H,et al.Microencapsulation of butyl stearate as a phase change material by interfacial polycondensation in a polyurea system[J].Energy Conversion&Management,2009,50(3):723-729.
[15]SIDDHAN P,JASSAL M,AGRAWAL A K.Core content and stability of n-octadecane-containing polyurea microencapsules produced by interfacial polymerization[J].Applied Polymer,2007,106(2):786-792.
[16]CHO J S,KWON A,CHO C G.Microencapsulation of octadecane as a phase-change material by interfacial polymerization in an emulsion system[J].Colloid&Polymer Science,2002,280(3):260-266.