Development of Scalable Process Technology Particle-void Polyester (PET) Passive Cooling Fibre

In this project, we will develop passive cooling material using polyester (PET) by particle-void structure. As PET is a common fibre with widespread application in textiles, this project also aims to develop scalable process technology with defined spinning conditions for the manufacturing of this passive cooling fibre.

What is Passive Cooling Material and its Benefits?

Passive cooling material is a type of material that allows heat loss through radiation in mid-infrared (MIR) range and reflects the radiation in solar spectrum to avoid heating by sunlight. This type of material can provide cooling effects without energy input. It can be applied in building design, household products or even textiles, which benefits the environment and meets the global trend of sustainable living.

Passive cooling material has drawn researchers’ interest but current study for passive cooling textiles mainly focuses on the use polyethylene (PE). Its properties such as low melting point, flammability and mechanical stiffness limits its application in textiles. This project explores the use of PET, a more common textile fibre, to develop passive cooling material.