Synthesis and characterization of thermochromic energy-storage microcapsule and application to fabric

In this paper, 3,3-bis-(4-dimethylaminophenyl)-6-dimethylaminophthalide, 2,2-bis(4-hydroxyphenyl)propane, and different mole ratios of binary eutectic mixture of aliphatic alcohol (myristyl alcohol and cetyl alcohol) were selected as chromophoric reagents, delomorphic reagents, and solvents of thermochromic energy-storage materials (TEMs), respectively. The thermochromic temperatures of TEMs were investigated according to Schroeder’s theory. The optimal TEMs with proper thermochromic temperature were chosen as the core material, and melamine–formaldehyde (M–F) resin served as the wall shell. The prepared microencapsulated thermochromic energy-storage materials (microTEMs) were characterized on the morphology, particle size, size distribution determination, and thermal properties. The results indicated that the spherical surfaces of microTEMs were smooth and compact. The diameters of microTEMs were found in the range (0.9–4 μm) under the stirring speed of 10,000 rpm. Moreover, the microTEMs had good energy-storage capacity and thermal stability. In the end, the prepared microTEMs were added to cotton/polyester fabric by coating method to develop textile materials with thermochromic and energy-storage dual property.

[1]  Yiping Ma,et al.  Research on the preparation of reversibly thermochromic cement based materials at normal temperature , 2009 .

[2]  N. Kayukawa,et al.  Characteristics of microencapsulated PCM slurry as a heat‐transfer fluid , 1999 .

[3]  Wei Li,et al.  Preparation of entangled nanocellulose fibers from APMP and its magnetic functional property as matrix. , 2013, Carbohydrate polymers.

[4]  A. Sari,et al.  Preparation, characterization and thermal properties of PMMA/n-heptadecane microcapsules as novel solid-liquid microPCM for thermal energy storage , 2010 .

[5]  M. Montazer,et al.  Sodium hypophosphite and nano TiO2 inorganic catalysts along with citric acid on textile producing multi-functional properties , 2012 .

[6]  A. Sari,et al.  Preparation, characterization, and thermal properties of microencapsulated phase change material for thermal energy storage , 2009 .

[7]  Xingxiang Zhang,et al.  Formaldehyde-free and thermal resistant microcapsules containing n-octadecane , 2009 .

[8]  J. Su,et al.  Synthesis of polyurethane microPCMs containing n-octadecane by interfacial polycondensation: Influence of styrene-maleic anhydride as a surfactant , 2007 .

[9]  Sennur Alay,et al.  Synthesis and characterization of poly(methyl methacrylate)/n-hexadecane microcapsules using different cross-linkers and their application to some fabrics , 2011 .

[10]  E. Onder,et al.  Encapsulation of phase change materials by complex coacervation to improve thermal performances of woven fabrics , 2008 .

[11]  Nihal Sarıer,et al.  Thermal characteristics of polyurethane foams incorporated with phase change materials , 2007 .

[12]  P. Sánchez,et al.  Development of thermo-regulating textiles using paraffin wax microcapsules , 2010 .

[13]  C. Cho,et al.  Microencapsulation of octadecane as a phase-change material by interfacial polymerization in an emulsion system , 2002 .