http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이지영(Ji-Young Lee),김철환(Chul-Hwan Kim),이희진(Hui-Jin Lee),곽혜정(Hye-Joeng Gwak) 한국펄프·종이공학회 2010 한국펄프·종이공학회 학술발표논문집 Vol.2010 No.10
Fluorescent whitening agents (FWAs) are used extensively in the paper industry to improve the optical properties. FWAs are neither photochemically nor thermally stable, and thereby the papers containing FWAs can be damaged by external heat. We observed that the CIE whiteness, ISO brightness and fluorescence index of the commercial papers decreased with the thermal treatment and thought that the thermal stability of FWAs was the main factor affecting the thermal fastness of the papers. Thus, the model papers treated with three types of FWAs were manufactured respectively and the thermal stability of FWAs was identified by determining Δ CIE whiteness and Δ fluorescence index.
이희진(Hui-Jin Lee),이지영(Ji-Young Lee),김철환(Chul-Hwan Kim),곽혜정(Hye-Joeng Gwak),박현진(Hyeon-Jin Park),김성호(Sung-Ho Kim) 한국펄프·종이공학회 2010 한국펄프·종이공학회 학술발표논문집 Vol.2010 No.10
In this study, the possibility of the use of a new raw material in paperboard industry was investigated. We found out fly ash as a new raw material in paperboard. Fly ash is one of the residues generated in the combustion of coal and generally captured from the chimney of coal-fired power plant. This material is utilized in many industries including cement, soil stabilization, composite etc., but it is not used in paper industry. Three types of fly ashes were collected from Hadong, Boryung and Sechen steam power plants and we investigated their shapes by scanning electron micrographs. Handsheets were manufactured with KOCC and fly ashes and the physical properties such as bulk, tensile strength, internal bond strength and ISO brightness were measured to identify the effect of fly ash on the paper properties.
박현진(Hyeon-Jin Park),김철환(Chul-Hwan Kim),이지영(Ji-Young Lee),이희진(Hui-Jin Lee),곽혜정(Hye-Joeng Gwak),김성호(Sung-Ho Kim) 한국펄프·종이공학회 2010 한국펄프·종이공학회 학술발표논문집 Vol.2010 No.10
Waste paper money bill contains high carbohydrate content than any other biomass. Without pretreatment of waste money bill for making bioethanol, the process was carried out by saccharification and fermentation. For saccharification step, cellulase (celluclast 1.5 L) and glucosidase (Novozyme 188) were used at the shaking incubator at 50℃, 150 rpm for 72 hrs. Fermentability of hydrolyzate was tested using Saccharomyces cerevisiae (KCCM11304) under an aerobic condition. Paper money sludge resulted in enzyme digestibility 92% and ethanol production rate 7%.