|
|
|
|
|
Journal |
Textile Coloration and Finishing |
Year / Vol., Issue, Month |
2023 / V.35,no.4,Dec |
Title |
Enhancement in the Thermal Stability of Microporous UHMWPE
Membrane by LED-UV Crosslinking |
Authors |
Jeong-Hwan Kim and Jinho Jang |
Institution/Affiliations |
Kumoh National Institute of Technology |
Pages/Total page |
pp.231 ~ 238 / 8 |
Language |
Korean |
Abstract |
Microporous gel films of 29 m were prepared by the gel drawing of
UHMWPE/soybean oil blend (4:6, w/w) up to 800%. The stretched films containing
the optimal photoinitiator concentration, depending on the film thickness, was crosslinked
under 365 nm LED-UV irradiation and the oil was extracted with n-hexane, resulting
in a gel fraction of 95 % or more. With the formation of the cross-linked
structure, the melt-down temperature and melt-down elongation increased by 16 ¡ÆC
and by 63% respectively. Also the thermal stability of the crosslinked UHMWPE was
proved by the area shrinkage under the heat treatment decreased to 3.8 % compared
to 17.4 % for the pristine film, and by the reductions in the combustion heat. The
enhanced thermal stability of the crosslinked UHMWPE microporous membranes can
be used for various industrial applications such as filters, electric vehicles and energy
storage systems. |
Keywords |
UHMWPE, membrane, LED-UV, crosslinking, melt-down, heat resistance |
Download |
|
Reference |
http://koreascience.or.kr/journal/OSGGBT.page |
|
|
|
|
|
|
|
|
|