3 years ago

A Novel Approach to Design Nanoporous Polyethylene/Polyester Composite Fabric via TIPS for Human Body Cooling

A Novel Approach to Design Nanoporous Polyethylene/Polyester Composite Fabric via TIPS for Human Body Cooling
Jing Zhu, Junrong Yu, Zuming Hu, Rong Liu, Xinwei Wang, Yan Wang
In this study, in order to obtain a wearable infrared-transparent material based on nanoporous polyethylene, a newly ultrahigh molecular weight polyethylene (UHMWPE)/polyester composite fabric with nanoporous structure is developed via thermally induced phase separation (TIPS) method. A polyester mesh with loose warp/weft weaves is chosen as the intermediate to enhance the fabric mechanical strength and air permeability. Meanwhile, methoxy-poly(ethylene glycol)-aminoethyl/polydopamine particles (mPPDAPs) are used to improve the hydrophilicity of UHMWPE. The fabric is composited with mPPDAPs/UHMWPE/liquid paraffin mixture at high temperature. Then the nanoporous structure is formed via TIPS in UHMWPE phase in the composite fabric. This newly UHMWPE/polyester composite fabric possesses a unique connective nanoporous structure with the pore sizes distributed from 50 to 100 nm and it also has many disconnected honeycomb pores that are ≈1000 nm in diameter. These characteristics endow the composite fabric with excellent properties of wearability and optical properties, including sufficient moisture wicking rate, air permeability, and mechanical strength, high infrared-transparent and ultraviolet/visible-opaque properties. It is an effective, economical, and practical novel composite textile for human body cooling. The ultrahigh molecular weight polyethylene/polyester composite fabrics with nanoporous structure are developed via thermally induced phase separation method. A polyester mesh is used to enhance the composite fabric mechanical strength and air permeability. Methoxy-poly(ethylene glycol)-aminoethyl/polydopamine particles are used to improve the hydrophilicity of the composite fabric. It is an effective, economical, and practical textile with infrared-transparent visible/UV-opaque property and sufficient wearabilities.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/mame.201700456

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