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이기풍,송석규 한국섬유공학회 1992 한국섬유공학회지 Vol.29 No.2
The chemical structure, surface free energy and optical characteristics of plasma polymerized hexafluorobenzene(PP-HFB) were investigated in terms of discharge power(W) and feed-in rate of monomer(Fm). It was observed that CF2 and CF$_3$bond in PP - HFB were newly generated and optical transmittance of the plasma polymers were promoted with an increase of input energy(W/Fm) level of glow discharge. It was found that PP-HFB showed highly hydrophobicity and their refractive indexes were changed from 1.458 to 1.621. It was enhanced the color deepening effect on the dyed polyester fabric by the PP-HFB coating.
아크릴산의 플라즈마 중합에 의한 나일론 6필름의 표면개질
이기풍,송석규 한국섬유공학회 1992 한국섬유공학회지 Vol.29 No.4
Plasma polymerization of acrylic acid(AA) onto nylon 6 (PP-AA/nylon 6) film was studied in terms of discharge power(W), plasma polymerization time and sample position. The chemical structures of PP - AAInylon 6 films were systematically changed by controls of W and plasma polymerization time and which changes were enhanced dyeability of the films. The wettability of the films were evaluated by the measurement of contact angle against water onto PP - AA/nylon 6. In the case of Ar plasma treatment onto nylon 6 films the contact angle was 300 and changed remarkably to 50˚ after 30 days in air otherwise the values onto PP-AA/nylon 6 films were 34-37˚. It was confirmed that the stable wettability of the modified film was resulted from the cross-linked structure of the plasma polymers.
닭의 전염성하리에 관한 연구 - 임상, 혈액상 및 조직소견
이기풍,이준섭,Lee Ki Poong,Lee Joon Sup 대한수의사회 1963 대한수의사회지 Vol.7 No.6
A large Proportion of an apparently healthy flock showed symptomes characterized by depression, loss of appetite, and watery diarrhea, and distention of the croup with sour-smelling contents, presenting severe cyanosis of comb. Laying flock revealed sever
이기풍,김상균,Lee Ki Poong,Kim Sang Kyun 대한수의사회 1965 대한수의사회지 Vol.9 No.1
Histopathological examinations were carried out on the swine tonsils from 175 randomely selected pigs at Ist Seoul Abattoir. Macroscopically, tiny miliary or rice size abscesses were recognized on 86 cases(49. 1$\%$) out of examined 175 cases.