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폴리에틸렌 아디페이트와 6-아미노카프로산으로부터 폴리에스테르아미드의 합성
조순채,이종문,온재근,Cho, Soon-Chae,Rhee, Johng-Moon,On, Jae-Keun 한국섬유공학회 1987 한국섬유공학회지 Vol.24 No.5
Aliphatic polyesteramide(PEA) with different molar ratio have been prepared from 6-aminocaproic acid (ACA) and polyethylene adipate (PEAD) synthesized by melt condensation of ethylene glycol (EG) and adipic acid (AA). The PEA was characterized by DSC, IR spectrophotometer, viscometer, colorimeter, and amino group determination. As ACA content in the polymer increased, its Tm, inherent viscosity, and the number of amino end group increased while its whiteness decreased. The polymer(PEA) having 90% ACA molar fraction was acid-dyeable and its Tm about 210$^{\circ}C$. The whiteness of the PEA was better than that of other PEA polymer.
趙淳彩 全北大學校 1968 論文集 Vol.10 No.-
1. Trace of additives improved the Shredding of alkali cellulose. 2. When added to pulp additives improved the penetrating of alkli to pulp and filterability of viscose. 3. Trace of additives to pulp or to alkali-cellulose made homogeneous Xanthate and improved penetrating of CS_2 to alkali cellulose. 4. Additives to viscose or to coagulation bath. clarified the bath and improved dispersing pigment suchus TiO_2, reduced and prevented the incrustation of spinnerets by internal orifice deposits and prevented formation of milky rayon. 5. Some additives to viscose or coagulation bath improved the Tenacity of Rayon. 6. Trace of additives to desulfuring bath accelerated to seperate sulfur from yarn.
樹脂加工布의 遊離 Formaldehyde에 관한 硏究(Ⅱ)
趙淳彩,任珍模,李種文,姜濚義 전북대학교 공업기술연구소 1981 工學硏究 Vol.11 No.-
In this paper, the effect of temperature and time for extraction on free formaldehyde and the relation between storing time(in the air) and free formalaehyde have been studied. The relation between the amount of catalyst and free formaldehyde and the effect of curing and soaping conditions on the amount of free formaldehyde in the urea-formaldehyde resin finished cotton-fabric have also been studied.
趙淳彩,李全淑,李鍾文,申相珍 한국의류학회 1981 한국의류학회지 Vol.5 No.1
In this paper, the extraction mechanism of free formaldehyde in the urea formaldehyde resin finished cotton fabric is discussed. An empirical equation for formaldehyde release has been formulated. F=3.7 x 10 exp(-3) H T^2.2326+440 in which, F: the amount of free formaldehyde extracted (㎍/g) H: extraction time (min) T: extraction temperature (℃)
趙淳彩 전북대학교 공업기술연구소 1983 工學硏究 Vol.13 No.-
Reliance of glass transition temperature(Tg) of polyethylene terephthalte(PET) on molecular weight(Mn) was studied. Tg of PET of Mn 5,000~19,500, prepared from dimethyl terephthalate and ethylene glycol, was determined by DSC thermogram. The results of study are summarized as follows; 1. Tg of PET reached to saturated value, 81℃, at Mn=13,000. 2. Ellerstein's constant was 8.46+10^₄,nearly that of polystyrene. 3. A rising gradient of Tg, namely average value of C/M, was 3.75×10^-₃. 4. The value of Tg/Tm was approximately 2/3, but less than 2/3 at low molecular weight.
폴리에틸렌 테레프탈레이트 연신비가 미세구조에 미치는 영향
趙淳彩,姜榮義,崔京洙,安種烈 전북대학교 공업기술연구소 1989 工學硏究 Vol.20 No.-
It is well known that the cause of filament shrinkage by heating is a partial decline of frozen strain set up during manufacturing of the filament. In this experiment, poly(ethylene terephtalate) filaments are drawn with various draw ratio and mechanical properties are analysed by X-ray diffraction, density, DSC and thermal stress. The results are as follows: 1) Theraml stress, heat of fusion nad melting peak temperature showed almost same tendendy as the change of crystallinity by drawing. 2)Thermal shrinkage wasaffected mainly by orientation of amorphous molecular segments of the filaments having same crystallinity. 3)Drawing the filament to the maximum level, thermal shrinkage decreased slightly owing to stress relaxations.