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고체 NMR에 의한 배향 섬유의 구조해석 -견사에의 응용-
여주흥,이인전,Yeo, Ju-Heung,Lee, In-Jeon 한국섬유공학회 1996 한국섬유공학회지 Vol.33 No.2
The structural analytical method for the determination of molecular bond directions and the orientational distribution relative to the oriented axis of silk fibroin fiber was studied on the basis of the solid state N nuclear magnetic resonance chemical shift anisotropy tensor. Using the unitary matrix, the matrix transformation from the principal axis system(PAS) through the fiber axis system(FAS) to the molecular syulmetry axis system(afSA), the angle, between the fiber axis and the molecular bond direction, NH and NC' bonds in Bombyx mori silk fibroin fiber are determined as well as the orientational distribution around the silk fibroin fiber axis, p was also obtained. The structural parameters determined for silk fibroin fiber are compared with these obtained by X-ray diffraction.
쌍극자-쌍극자 상호작용에 의한 배향섬유의 분자축 각도 결정 - Polyamide계 섬유에의 응용 -
여주홍,이인전,Yeo, Ju-Hong,Lee, In-Jeon 한국섬유공학회 1997 한국섬유공학회지 Vol.34 No.1
The bond direction between fiber axis and N-H bond direction of $^15N$-Gly labeled silk fibroin fiber and poly-p-phenyleneterephthalamide(PPTA) oriented were obtained from the dipolar-bipolar interaction information, respectively. Theoretical method for the determination of molecular bond directions relative to the axis of fiber was derived on the basis of solid state nuclear magnetic resonance dipolar-dipolar interaction tensor. The oriented samples were placed parallel to the applied magnetic field, and the $^15N-^1H$ hetero-nuclear dipolar-dipolar splitting values were obtained. Substituting this values into the derived equation, the N-H bond angles ($$\theta$_NH$=83$^{\circ}$ and 97$^{\circ}$) are calculated. Also, the N-Hbond direcyions to fiber axis of PPTA are 44$^{\circ}$ and 67- These obtained values compared with the values from the angular dependation spectra simulation of oriented PPTA sample.
잠견(蠶繭)과 생사(生絲)에 적외선조사(赤外線照射)가 조사(繰絲) 및 생사(生絲)의 물리적성질(物理的性質)에 미치는 효과(效果)
남중희 ( Chung Hee Nam ),이인전 ( In Jeon Lee ) 한국잠사학회 1967 한국잠사곤충학회지 Vol.7 No.-
생견 및 건견에 적외선을 조사하여 조사성적과 생사의 품위를 조사하고 아울러 생사에 직접 조사한 때의 실외 물리적 성질을 조사한 결과는 다음과 같다. 1. 생견에 적외선을 조사한 것은 건견 및 무처리구에 비하여 생사량비율이 높았다. 2. 원료견과 생사에 적외선이 조사되면 생사의 강력(4.5g/d)은 향상되나 신도는 저하되었다. 3. 적외선조사에 의하여 생사는 황변화 하였다. The aim of this treatise was to investigate the effects of ultra-red ray on the ree1ability of the undried and dried cocoons as well as the characteristics of raw silk. The results obtained are as follows: 1. The percentage of raw silk of undried cocoons was higher than that of dried cocoon and control. 2. On irradiation with ultra-red ray, it was found that the strength of raw silk increased to 4.5 g/d, while the elongation of it remarkably decreased. 3. The raw silk irradiated with ultra-red ray appeared to be brown in color.
繭層 Sericin에 對한 몇 가지 化學藥劑 處理의 效果
李仁銓,李東秀,千承祿 COLLEGE OF AGRICULTURE KYUNGPOOK NATIONAL UNIVERSI 1985 慶北大農學誌 Vol.3 No.-
The purpose of this study was to find out effects of several chemicals treatment for cocoon sericin, and there was several results of use to control the solubility of cocoon sericin in water. The results obtained was summarized as follows : The chemicals which showed the strongest accelerating power on the solubility of cocoon sericin in water was sodium peroxide (Na_(2)O_(2)), the second was sodium carbonate (Na_(2)CO_(3)), the third was sodium sulfite (Na_(2)SO_(3)), the weakest was ammonia water (NH_(4) OH) in order among noticed silk-reeling accelerators. The chemicals which showed the inhibiting power on the solubility of cocoon sericin in water was tannic acid (C_(14)H_(10)O_(9)), the second was stannic acid (Sn(OH)_(4)), the third was formic acid (HCOOH) and the weakest was methyl alcohol (CH_(3)OH) in order among noticed silk-reeling inhibitors. Particulary stannic acid and formic acid showed accelerating power on the solubility of cocoon sericin at high temperature over 100 degrees of celsius thermometer in water Methyl alcohol did not show the inhibiting power on the solubility of cocoon sericin in low concentration. (at 1,500-2,000 times)
製絲用水에 對한 몇가지 化學藥劑의 處理가 繭層 Sericin의 溶解性에 미치는 影響
李仁銓,李東秀 COLLEGE OF AGRICULTURE KYUNGPOOK NATIONAL UNIVERSI 1983 慶北大農學誌 Vol.1 No.-
The purpose of this study is to find out influences of several chemicals on the solubility of cocoon sericin in water, and there are several results of use to control the solubility of cocoon sericin in water. The results obtained are summarized as follows : The chemical which shows the strongest accelerating power of the solubility of cocoon sericin in water is Sodium Hydroxide (NaOH), the second is Potassium Hydroxide (KOH), the third is Sodium Silicate (NA_(2)SiO_(3)), and the weakest is Sodium Bicarbonate (NaHCO_(3)) in order among noticed silk-reeling accelerators. The chemical which shows the strongest inhibiting power of the solubility of cocoon sericin in water is Form Aldehyde (HCHO), the second is Ammonium Alum (Al_(2)(SO_(4)) . (NH_(4))_(2) SO_(4). 24H_(2)O), the third is Acetic Acid (CH_(3)COOH), the weakest is Hydrochloric Acid(HCl) in order among noticed silk-reeling inhibitors. Particulary Hydrochloric Acid (HCl), which is expected to show strong inhibiting power of the solubility of cocoon sericin in water, shows accelerating power of the solubility of cocoon sericin at high temperature over 80 degrees of Celsius thermometer in water.
絹絲에 對한 硅素樹脂 處理가 物理的 性質에 미치는 影響
李仁銓,李東秀 慶北大學校 1986 論文集 Vol.42 No.-
This study was carried out to investigate effects of silicon resin on tenacity, elongation and Young's modulus of silk fiber. The results obtained were as follows; Weight of silk fiber was increased with increasing concentration of silicon resin treated and treatment temperature. Tenacity of silk fiber was not influenced by either concentration of silicon resin or treatment temperature. Elongation and Young's modulus of silk fiber was increased with increasing silicon resin up to 3% regardless of treatment temperature. It was concluded that the best result of treatment on silk fiber could be obtained at 3 or lower percent of silicon resin concentration and 30℃ treatment temperature.
反應染色絹의 Methacrylamide graft 重合
李仁銓,李東秀 慶北大學校農業科學技術硏究所 1994 慶北大農學誌 Vol.12 No.-
反應染色 絹 fibroin의 graft 重合 擧動을 알아보기 위하여 C. I. Reactive Yellow 179, Red 2, Black 5, Blue 13, Blue 49, Blue 4, Blue 19, Red 6, Blue 71, Blue 21로 絹 fibroin의 染着量이 각각 다르게 染色하고, methacrylamide graft 重合하였으며 그 結論은 다음과 같다. 1. 染料의 固着速度는 吸着速度와 一致하는 傾向이었으며, 固着速度는 Yellow 179 및 Blue 71이 가장 낮았고, Black 5, Blue 49, Blue 4, Blue 19, Blue 21은 비교적 빠른 것으로 나타났다. 2. 染色時間이 經過할수록 卽, 染着量이 增加할수록 增量率은 減少하는 것으로 나타났으나, Blue 71 및 Blue 21 染色 絹 fibroin의 增量率은 染着量의 多少에 관계없이 현저하게 높았으며, Blue 19의 경우 增量率은 12% 內外로 一定하게 나타났고, Yellow 179 染色 絹 fibroin의 增量率은 無處理 絹 fibroin과 비슷한 것으로 나타났다. 3. 平衡染色 絹 fibroin의 增量率은 Blue 71 및 Blue 21 染色 絹 fibroin의 경우를 제외하고는 모두 無處理 絹 fibroin에 비하여 낮은 것으로 나타났으며, 染色溫度가 上昇할수록 增量率은 低下하는 것으로 나타났다. 4. Graft 重合 과정에서 色相이 多少 變化하는 것으로 나타났다. Fixation rate of reactive dyes on silk fibroin showed the same tendency to absorption rate. Fixation rate of Yellow 179 and Blue 71 was quite slow and Black 5, Blue 49, Blue 4, Blue 19 and Blue 21 was relatively fast. Weight increase by MAA graft polymerization onto filk fibroin was decreased, on the whole, according to the the increase of dye fixation, but weight increase of silk fibroin dyed with Blue 71 and Blue 21 was much higher than that of silk fibroin. And weight increase of silk fibroin dyed with Yellow 179 was similar to that of silk fibroin and in case of Blue 19, weight increase was about 12%, constantly. Weight increase of silk fibroin dyed with Blue 71 and Blue 21 was higher and the others were lower than of silk fibroin. And weight increase was diminished according as the dyeing temperature rises. The color was a little changed by MAA graft polymerization.