000			01130nam a2200205Ia 4500
008			220216s9999 xx 000 0 und d
100			_aKaang Shinyoung
245		0	_aSome physical characteristics of double-networked natural rubber
260			_bJournal of Applied Polymer Science _c1997
300			_a917-924
520			_aA double-networked natural rubber (DNNR) was prepared by a twp-step crosslinking method, in which the crosslinking was achieved while the natural rubber was in stretched condition. The swelling behavior, tensile properties, crepe, recovery, and permanent set were considerably improved as the residual extension was increased. They were, however, rather inferior to those of a single-networked natural rubebr and showed a minimum at a lower residual extension of about 1.55. The degree of crosslinking and elongation at break were not greatly affected by the resudal extension.
650			_aCrepe and recovery
650			_aDouble networks
650			_aNatural rubber
650			_aSwelling
650			_aTensile property
700			_aGong Donghwa
700			_aNah Changwoon
942			_cJS
999			_c69018 _d69018