Techtextil Symposium 2015
4 – 7 May 2015 in Frankfurt am Main, Germany
Abstract title:
Bicomponent PCM fibres
Section:
New materials
Lecture:
TTS3.3
Presenting author(s): Nelson Duraes
CeNTI - Nanotecnologia e Materiais Técnicos, Funcionais e Inteligentes
PORTUGAL
Andreia Ferreira
CeNTI - Nanotecnologia e Materiais Técnicos, Funcionais e Inteligentes
PORTUGAL
Nelson Cardoso
CeNTI - Nanotecnologia e Materiais Técnicos, Funcionais e Inteligentes
PORTUGAL
Abstract Body:
The heat exchange with the environment plays a key role in the thermal state of the human body.
Thermal comfort is defined as that condition of mind which expresses satisfaction with the thermal
environment. Nowadays the products with the ability of thermoregulation, in their majority are used in
the form of micro encapsulated products. One of the most notable developments in the field of
temperature control fabrics has been the use of phase change materials (PCMs). Unlike traditional
insulations, PCM-based fabrics work interactively with the body to prevent overheating when activity
levels or ambient temperatures increase. These materials store, release or absorb heat as they
oscillate between solid and liquid form, giving off heat as they change to a solid state and absorbing it
as they return to a liquid state. The main objective of this work was to develop textiles with better
thermal comfort by means of using PCMs encapsulated on the core cross section of a polyester fibre.
An enthalpy of fusion of 102 J/g was observed by means of Differential Scanning Calorimetry (DSC)
on prepared PCMs based compounds. Sheath/core bi-component fibres were produced with different
amount of PCMs on a polyester fibre core. The fibres were analysed by infrared thermography and
differences of 2 °C were observed between the produced fibres and the control.
Co-authors:
Andre Assembleia
CeNTI - Nanotecnologia e
Materiais Técnicos,
Funcionais e Inteligentes
PORTUGAL
Ana Sampaio
CeNTI - Nanotecnologia e
Materiais Técnicos,
Funcionais e Inteligentes
PORTUGAL
Dr. Carla Silva
CeNTI - Nanotecnologia e
Materiais Técnicos,
Funcionais e Inteligentes
PORTUGAL
Domingos Moreira
CeNTI - Nanotecnologia e
Materiais Técnicos,
Funcionais e Inteligentes
PORTUGAL
prof Fernando Pereira
FEUP - Faculdade de
engenharia da universidade
do Porto
PORTUGAL