http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
폴리프로필렌/지르코니아 혼합물의 방사성에 관한 연구(I)-방사조건에 따른 구조와 기계적 성질-
전재완,주창환,김동철,Jeon, Jae-Wan,Ju, Chang-Hwan,Kim, Dong-Cheol 한국섬유공학회 1994 한국섬유공학회지 Vol.31 No.5
The zirconiunl dioxide(ZrO2) has characterized as a far infrared radiator and can apply as the thermal storage material by mixing with various polymers. In the present work, PP chips were blended with ZrO2 particles by the banbury mixer and spun PP/ZrO2 composite fibers by using the melt spinning machine with different spinning conditions. Effect of the draw ratio and amount of ZrO2 on the morphological structure and mechanical properties of the produced PP/ZrO2 composite fibers has been investigated. The results obtained are as follows: (1) the good dispensability of ZrO2 particles in the PP fiber has been observed and the phase separation between PP and ZrO2 has an increasing trend with increasing draw ratio on PP/ZrO2 composite fibers. (2) the breaking stress has increased to a significant extent with increasing the draw ratio, but decreased with increasing the amount of ZrO2, (3) in the X-ray diffraction pattern, the peak intensities of PP/ZrO2 composite fibers have increased with increasing the draw ratio, and (4) the crystallinity of PP/ZrO2 composite fibers has slightly changed with increasing the amount of ZrO2 and considerably increased with increasing the draw ratio.
폴리프로필렌/지르코니아 혼합물의 방사성에 관한 연구(II)-방사조건에 따른 열적 및 점탄성 성질-
전재완,주창환,김동철,Jeon, Jae-Wan,Ju, Chang-Hwan,Kim, Dong-Cheol 한국섬유공학회 1994 한국섬유공학회지 Vol.31 No.6
In order to investigate the thermal and viscoelastic properties of Pp/ZrO2 composite fibers, polypropylene(PP) chips were mixed with the zirconium dioxide(ZrO2) powder characterized as a far infrared radiator and PP/ZrO2 composite fibers were spun by using the melt spinning machine with different spinning conditions (i. e.. draw ratio and the amount of ZrO2 Effects of spinning condition on the thermal and viscoelastic properties of the produced PP/ZrO2 composite fibers have investigated. The results obtained in this study are as follows: 1. The amount of ZrO2 on the composite fiber has scarecely influenced on the melting temperature and the melting temperature of iolo Pp/ZrO2 composite Hber is 161℃, but the crystallinity temperature has increased with increasing the amount of ZrO2 and the decomposition temperature of Pp/ZrO2 composite fiber has an decreasing trend with increasing the draw ratio. 2. The loss tangent(tan 6) has decreased with increasing the draw ratio in the ad absorption peak, but the absorption intensity of E' and E" has increased with increasing the draw ratio in the ac absorption temperature. Meanwhile, in the aa absorption region, the loss tangent of PP/ZrO2 composite fibers has decreased with increasing the amount of ZrO2.
전재완,Jeon, Jae-Wan 한국LP가스공업협회 2005 LP가스 Vol.17 No.5
지난 10월 20일부터 21일까지 제주에서 에너지관련 워크숍이 개최되었다. 워크숍에서 발표된 내용 중 산업연구원에서 발표한 "에너지원별 가격경쟁력 구조변화"를 소개한다.
전재완,Jeon, Jae-Wan 한국LP가스공업협회 2007 LP가스 Vol.19 No.5
최근 온실가스규제가 강화되면서 저공해차에 대한 관심이 높아지고 있다. 국내외 저공해차 기술개발현황을 소개한다.