Development of thermo‐regulating fabrics with enhanced heat dissipation via graphene‐modified n‐octadecane microcapsules

Abstract

Phase change materials (PCMs) are of great importance in thermal regulation applications, but low thermal conductivity is the most critical disadvantage of these materials. Especially in the textile field, while there are many studies on the production of PCM-coated fabrics, studies on improving heat dissipation are quite limited. Therefore, in this study, first, n-octadecane was encapsulated with melamine formaldehyde shell modified with graphene as a thermal conductivity enhancer, and then, synthesized PCM microcapsules were coated on polyester fabrics. Chemical, morphological, thermal properties, as well as phase change behavior of microcapsules and coated fabrics were analyzed. The thermal conductivity of the PCM microcapsule-coated PET fabrics was increased by 31% with the addition of very low amount of graphene (0.1%).

Self‐healing corrosion‐resistant coatings based on fluorinated alkyl silane microcapsules

“…Microencapsulation of FAS was performed according to an improved method reported by Hicyilmaz and Li. [27,28] Figure 1 illustrates the process of preparing microcapsules containing FAS with a UF shell. The whole process was divided into three steps: (1) First, 6 g of urea, 12 g of formaldehyde and 30 ml of deionized water were mixed.…”

Thermally Conductive Boron Nitride Nanosheets on Electrospun Thermoplastic Polyurethane for Wearable Janus-Type Fabrics with Simultaneous Thermal and Moisture Management

“…The introduction of a 60% mass fraction of the thermal filler improved the thermal conductivity to 0.358 W/mK, leading to an enhanced heat dissipation performance. Sezer et al coated polyester fabrics with phase change microcapsules containing n-octadecane in a melamine-formaldehyde shell, , and found that a small amount of graphene load (0.1 wt %) increased the thermal conductivity by 31%, thereby improving the heat dissipation ability of the fabric. Fan et al developed a layered fabric utilizing electrospinning and dipping techniques, consisting of styrene-ethylene-butylene-styrene (SEBS), a nonwoven inner layer, and Al 2 O 3 treated SEBS/SEBS-F127.…”

Improvement of the rupture strength of MF shell microcapsule by incorporating TiO2 nanoparticles with an optimal content

“…Furthermore, MPCMs with high encapsulation efficiency and large heat transfer area can avoid the inherent disadvantages of PCMs. Therefore, MPCMs are increasingly used in building energy savings, [10][11][12] textiles, [13][14][15] thermal management of electronics, 16,17 and solar power utilization. 18,19 A considerable amount of literature focusing on the preparation and thermal performance of MPCMs has been published.…”