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Fabrication, structures and properti...

Zhang, Xing-xiang.

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Fabrication, structures and properties of nano/microencapsulated phase change materials, thermo-regulated fibres and fabrics.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Fabrication, structures and properties of nano/microencapsulated phase change materials, thermo-regulated fibres and fabrics./
作者:	Zhang, Xing-xiang.
面頁冊數:	224 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-07, Section: B, page: 3901.
Contained By:	Dissertation Abstracts International66-07B.
標題:	Engineering, Materials Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3181587
ISBN:	9780542221057

Fabrication, structures and properties of nano/microencapsulated phase change materials, thermo-regulated fibres and fabrics.
Zhang, Xing-xiang.

Fabrication, structures and properties of nano/microencapsulated phase change materials, thermo-regulated fibres and fabrics. - 224 p.

Source: Dissertation Abstracts International, Volume: 66-07, Section: B, page: 3901.

Thesis (Ph.D.)--Hong Kong Polytechnic University (People's Republic of China), 2005.

This project aims to fabricate and characterize the structures and properties of thermo-regulated fibres and fabrics that can intelligently regulate temperature by absorbing and evolving latent heat, to enhance the development of temperature regulating fabrics and improve the thermo-physiological comfort of textile materials.

ISBN: 9780542221057Subjects--Topical Terms:

1017759
Engineering, Materials Science.

Fabrication, structures and properties of nano/microencapsulated phase change materials, thermo-regulated fibres and fabrics.
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500 $a Source: Dissertation Abstracts International, Volume: 66-07, Section: B, page: 3901.
500 $a Supervisors: Xiao-ming Tao; Kit-lun Yick.
502 $a Thesis (Ph.D.)--Hong Kong Polytechnic University (People's Republic of China), 2005.
520 $a This project aims to fabricate and characterize the structures and properties of thermo-regulated fibres and fabrics that can intelligently regulate temperature by absorbing and evolving latent heat, to enhance the development of temperature regulating fabrics and improve the thermo-physiological comfort of textile materials.
520 $a In this study, nano/microencapsulated n-alkanes (Nano/MicroPCMs) were synthesized by in-situ polymerization of urea-melamine-formaldehyde. Parameters affecting the structures, thermal stabilities and properties of Nano/MicroPCMs, such as oil phase composition and content of cyclohexane, shell composition, stirring rates, content of emulsion and heat-treatment on the properties of MicroPCMs were studied. To analyze the effects of increased content of Nano/MicroPCMs, polypropylene (PP) composite fibres containing 4--24wt% MicroPCMs and polyacrylonitrile-vinylidene chloride (PAN/VDC) fibres containing 5--40wt% Nano/MicroPCMs were melt and wet-spun respectively. The composition and properties of thermo-regulated nonwoven fabrics made of the fibres, PET and PP fibres and Nano/MicroPCMs coated knitted fabric were also studied.
520 $a The heat absorbing and evolving temperatures of the melt-spun fibres in which the microcapsules were evenly impregnated in core polymer matrix were approximately 32°C and 15°C respectively. The spinnability of the fibre was affected by content of MicroPCMs, diameters, ratio of aggregate microcapsules and spinning parameters etc. The wet-spun fibre had a higher efficiency of enthalpy of melting than that of the melt-spun one.
520 $a The fabrics absorbed and released heat at 25--34°C and 10--25°C respectively. The knitted fabrics absorbed and released heat at 32°C and 17°C respectively with an amount of 8--20J/g. The integral heat flux of MicroPCMs coated fabric is significantly higher than that of the control. (Abstract shortened by UMI.)
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790 1 0 $a Yick, Kit-lun, $e advisor
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791 $a Ph.D.
792 $a 2005
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