카이토산 필름의 분자간 가교화에 관한 연구

배현숙 창원대학교 생활과학연구소 1998 생활과학연구 Vol.- No.2

Chitosan is an under-utilized polymer which possesses many of the desired characteristics for biodegradable materials. Chitosan is a preferred form of the polymer though, as it is a more tractable from to process into films or fibers than chitin. This study describes the crosslinking of deacetylated chitosan film. Epichlorhydrin(ECH) was selected as abase catalyzed crosslinking agent. According to the increase fo ECH concentration, the swelling ratio was decreased. The strength of chitosan film, especially wet tenacity, was improved by crosslinking up to 10x 10?M/1 ECH concentration and the elongation was decreased. The optimum conditions for the crosslinking reaction of chitosan film were performed for 2hrs with 10x10?M/1ECH at 40℃.

전해질 첨가에 따른 키토산/Sodium Dodecyl Sulfate 상호작용의 변화

배현숙,강인숙 한국의류학회 2003 한국의류학회지 Vol.27 No.5

The change of interactions of anionic surfactants, sodium dodecyl sulfate(SDS) and sodium tetradecyl sulfate(STS) in the presence of electrolytes, to the chitosan-based polyelectrolyte(sol'n and gel phase) were studied. The chitosan gel used in this study were crosslinked with epichlorohydrin(ECH). Binding isotherms were determined by potentiometric technique using a surfactant ion selective solid-state electrode and the results were represented by using the sequence generating function(SGF) method. The results of binding isotherm were shown comparatively high cooperativity. The addition of electrolytes in the chitosan/SDS system resulted in a shift of the binding to higher free surfactant concentration because of screen effect by the electrolytes. Degree of binding of chitosan gel was higher than that of chitosan sol'n. And also a conformational phase transition gel in the presence of electrolytes has been investigated.

Ce(Ⅳ)鹽에 의한 셀룰로오스 纖維에의 그라프트 重合에 관한 硏究

裵玄淑 國立 昌原大學校 基礎科學硏究所 1993 基礎科學硏究所論文集 Vol.4 No.-

Graft polymerization mechanism and rate of polymerization of MMA and MMA/4-VP onto cellulose fiber using Ce(Ⅳ) salt as an initiatior were investigated. It was shown that the concentration of Ce(Ⅳ) salt affected on the graft yield, graft efficiency, total conversion and the rate of graft polymerization. The graft yield and total conversion for MMA grafted polymer were significantly higher than those for MMA/4-VP grafted polymer with variation of CAN concentration. In this system the oxidative termination by Ce(Ⅳ) salt was considered particularly in higher concentration Ce(Ⅳ) ion. The change in the mode of termination reactions with variation of CAN concentration made possible the presence of an optimum Ce(Ⅳ) ion concentration for maximum graft yield.

Zeolite 混合洗劑의 洗滌性에 영향을 주는 諸要因

裵玄淑,柳淑姬 國立昌原大學校 基礎科學硏究所 1992 基礎科學硏究所論文集 Vol.3 No.-

In order to investigate the detergency characteristics of zeolite-contained detergent, it was estimated the zeolite concentrations, hardnenss, soil composition, surfactants, pH, cation types and electrolytes. The detergency of zeolite-contained detergent increased according to the increase of zeolite concentration. Above 200ppm of hardness, it was unaffected by zeolite concentration. And the effect of counter-ion in detergent solution with zeolite on detergency was shown differently in natural soiled cloth and artificial soiled cloth. Incase of the soiled cloth using carbon black or iron oxide black as a particulate soil, the detergency of carbon black was better than that of iron oxide black. The exchanging capacity of A-type zeolite for ??? ion was better than that Of ??? ion.

집배원 유니폼의 착의실태에 관한 조사연구

배현숙 창원대학교 생활과학연구소 2003 생활과학연구 Vol.- No.7

The purpose of this study was to analyze on the clothing practice of mail carrier's uniform and to investigate the relationship between wearing sense of worker's uniform and overall comfort according to working environment. The data were collected from 178 mail carriers using questionnaire. One of the most important things in the design concept was to make the uniform high quality and refinement. The dissatisfaction of clothing practice of uniform was shown high in color, design and material. In case of taking care of uniform, sewing durability and soiling property were poor in comparison with washing easiness. The correlation between overall comfort and wearing sense of uniform as sense of wearing and taking off, texture and movement function, was relatively high, but it appeared the low correlation in physiological comfort.

綿纖維에의 MMA/4-Vinylpyridine 의 共그라프트 重合

裵玄淑,金聖連 한국의류학회 1993 한국의류학회지 Vol.17 No.3

Graft copolymerization of MMA/4-VP onto cotton fiber using Ce(IV) salt as an initiator and triton X-100 as an emulsifier was performed under various polymerization conditions. In cograft polymerization, the polymeization behavior according to variation of 4-VP feed composition and the characteristics of MMA/4VP graft polymer such as affinity for acid dye owing to cationization of cotton, antibacterial activity and thermal behavior were investigated. The results of this study were as follows; 1. While in copolymerization of MMA and 4-VP, 4-VP content in copolymer was more than that of monomer feed composition. 2. Increasing 4-VP content, graft yield was decreased, but graft efficiency was increased. In case of MMA/4VP graft polymerization, the highest graft yield was obtained at higher CAN concentration than in MMA graft polymerization, the reason is that the behavior of 4-VP was disturbed by Ce(IV) salt. 3. Elevation of temperature resulted in increase of graft yield and the apparent activation energy of MMA/4-VP graft polymerization was higher than that of MMA graft polymerization. 4. MMA/4-VP grafted cotton fiber showed affinity for acid dye, antibacterial activity and higher moisture regain than MMA grafted cotton fiber. MMA/4-VP grafted cotton fabric showed improvement of wrinkle recovery up to 40∼50% graft yield and decreased thereafter. MMA/4-VP and. MMA grafted cotton fabric did not showed significant difference in wrinkle recovery and stiffness.

소아과 입원 환자복의 착의실태에 관한 연구

배현숙 창원대학교 생활과학연구소 2001 생활과학연구 Vol.5 No.-

The purpose of the study was to investigate on the wearing actual condition of the pediatric inpatient's uniform. The data were collected from 153 users using questionnaire and interview of nurses for uniform management. The pediatric inpatient's uniform of the general hospital was similar to that for adult inpatient. The dissatisfaction of the wearing actual condition of the uniform was shown high in sizing system, changing uniform and fabric hand. The funtional design of the pediatric inpatient's uniform was suggested that, blue color, natural pattern, V neckline, three-quarter length sleeve, two pockets, full length pants with elastic band was the most suitable for the uniform. The material was good for hygiene and durability, but it was bad for hand, flexibility and extensibility. And also the degree of satisfaction for management by users was low. Finally, the users and managers should be change the mind on the role of the pediatric inpatient's uniform.

수유용 브래지어의 사용에 관한 실태 조사연구

배현숙 창원대학교 생활과학연구소 2002 생활과학연구 Vol.- No.6

The purpose of the study was to investigate on the using of the nursing brassiere. The data were collected from 170 users using questionnaire. The study procedures were consisted of the interview of sellers and on-line examination. The experienced users of the nursing brassiere was 75.3% of respondents. And the information of the nursing brassiere was received from neighborhood. The dissatisfaction of the wearing condition of the nursing brassiere was shown high in slit area, cleanliness, dressing-undressing easiness and sizing system. The preferable design of the nursing brassiere was skin nude color, side type of shoulder strap, center-front slit area, full cup with wire and absorption pad.

소방보호복과 119 구조복의 착의실태 분석

배현숙,김채련,이주영 창원대학교 생활과학연구소 1999 생활과학연구 Vol.3 No.-

The purpose of this study was to analysis on the clothing practice of fire fighter's protective clothing and 119 rescue clothing surveys of user's opinion and experiment on the physical properties of material. Firefighter's protective clothing should be required more flame-resistance, water-resistance, air permeability and reflectivity, 119 rescue clothing should be required more water-resistance, toughness and air permeability . Firefighter's protective clothing should be improved color, size, clothing weight, washability and clothing comfort.

카이토산-SDS 복합체의 소수화 섬유 제조

배현숙 창원대학교 생활과학연구소 1997 생활과학연구 Vol.- No.1

This study has produced a hydrophobic chitosan-SDS fiber by extruding cationic chitosan into an anionic surfactant, sodium dodecyl sulfate (SDS) coagulation bath. Conventionally, caustic baths of sodium hydroxide and/or alcohols are used to produce chtiosan fibers. The delivery rate was varied and it was found that 0.3ml/min, the largest average tenacity was measured, which was 3.02g/d. From FT-IR spectra, it was a large band that represented the hydrocarbon carbon-carbon stretch at 2923cm?, and also there was a new peak that indicated the sulfonate group at 1248cm?. After dyeing with two water insoluble dyes, it was determined that hydrophic regions do exist in the chitosan-SDS fibers. This indicates that there is a physical attraction between the hydrophobic dye molecules and the hydrophobic side groups on the chitosan chain.