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임완빈,안종일,최하영,문호상 한국유화학회 1998 한국응용과학기술학회지 Vol.15 No.3
Cyclodextrin are obtained from starch by enzymatic degradation. The three best characterize forms are α, β, γ cyclodextrin consisting of 6, 7, and 8 D-glucose units, respectively. Each of the glucose units are in the rigid C1 chair conformation and are linked by α 1,4 bonds. This geometry gives the cyclodextrin the shape of a hollow truncated cone with the wider side formed by the secondary 2- and 3-hydroxy groups and the narrower side by the primary 6-hydroxy group. The most characteristics property of the cyclodextrin is their ability to form inclusion complexes with a wide range of guest moleculars. We syntheses per-6-substituted β-cyclodextrin derivatives and investigate structures, spectrospcopic properties. The substitued materials are piperidine, piperazin, morphorine. The synthetic compound showed a good solubility than natural β cyclodextrin in organic solvents such as methylene chloride, methanol, ethanol, etc.
아크릴 공중합체와 지방산 카르바미드의 블렌딩에 의한 내구유연발수제의 제조에 관한 연구 - Ⅴ . PET 직물에의 발수가공 -
임완빈,김성길,박홍수 ( Wan Bin Im,Seong Kil Kim,Hong Soo Park ) 한국유화학회 1996 한국응용과학기술학회지 Vol.13 No.3
Durable softening water repellents such as PODCW, PDDCW, and PEDCW were prepared by blending cationized polymers, fatty carbamide, waxes, and emulsifiers. The cationized polymers included poly (octadecyl methacrylate-co-2-diethylaminoethyl methacrylate)[PODC]and poly (n-dodecyl methacrylate-co-2-diethylaminoethyl methacrylate) [PDDC]and poly (2-ethylhexyl methacrylate-co-2-diethylaminoethyl methacrylate)[PEDC]. After the PET fabrics were treated with these water repellents, water repellency, softness, and durability of the PET fabrics were examined by various methods : water repellency by the hydrostatic pressure and the contact angle methods, softness by crease recovery and tearing strength, and durability by washability, respectively, Rating of water repellency of PET fabrics treated with PODCW was 80^+. but those treated with PDDCW and PEDCW were not high enough to be used in industry.
임완빈(Wan Bin Im),양인모(In Mo Yang),정충호(Choong Ho Jung),함현식(Hyun Sik Hahm),박홍수(Hong Soo Park) 한국유화학회 2002 한국응용과학기술학회지 Vol.19 No.2
N/A A silicone softner (SS-5), a permanent press (PP) finish, was prepared by blending silicone oil KF-96 (as a lubricating component) and beef tallow hardened oil (as a softening component) which was synthesized from fatty polyamide salts. The prepared SS-5 and the PP finishing resin were applied to PP finishing cotton cloth and P/C gingham sample by one-bath method. The properties such as crease recovery, tear strength, and bending resistance were tested. The samples treated with SS-5 and PP finishing resin showed improved properties when comparing with the untreated ones, with the ones treated only with PP finishing resin, with ones treated with commercial PP finishing softners and PP finishing resin. The grades of fabric samples treated with 3% SS-5 were fifth grade in the bending resistance test.
이소시아네이트와 트리클로로 변성폴리에스테르 폴리올과의 중합에서 이소시아네이트 종류에 따른 PU 난연도료의 도막특성 및 난연성 비교
임완빈(Wan Bin Im),김성길(Seong Kil Kim),양인모(In Mo Yang),김태옥(Tae Ok Kim),박홍수(Hong Soo Park) 한국공업화학회 2002 공업화학 Vol.13 No.3
전보에서 합성한 트리클로로 변성폴리에스테르 폴리올(TCAO)에 2종류의 이소시아네이트 경화제(Desmodur N-3300과 L-75)를 선정하여 상온경화시켜 PU계 난연도료(TACO/N-3300=TCAON, TCAO/L-75=TCAOL)를 각각 제조하였다. 제조된 난연도료로서 물성시험을 시행한 결과 경도, 내마모성, 건조시간은 TCAOL쪽이, 접착력과 연화도는 서로 비슷하게, 가사시간, 60˚ 경면광택도, 점도, 촉진내후성은 TCAON쪽이 더 좋게 나타났다. 난연성분인 trichliroacetic acid 함량 30 wt%에서의 2종류 도막의 LOI값은 29~30%로 나타나 양호한 난연효과를 보여주었다. PU flame-retardant coatings, TCAO/N-3300 (TCAON) and TCAO/L-75 (TCAOL), were prepared by curing trichloro modified polyster polyol (TCAO) with two types of isocyanate curing agents, Desmodur N-3300 and L-75, at room temperature. The physical properties of the prepared coatings were examined. The hardness, abrasion resistance, drying time of TCAOL were better than those of TCAON. However, the pot-life, 60˚specular gloss, viscosity, accelerated weathering resistance of TCAON were better than those TCAOL. The cross-hatch adhesion and fineness of grinds were similar in both the coatings. At 30 wt% of trichloro acetic acid, which is a flame-retarding component, the LOI values of the films of the two coatings were in the range of 20~30%, indicating good flame retardancy of the coatings.