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Received October 12, 2010
Accepted November 4, 2010
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실란커플링제 종류 변화가 수분산 폴리우레탄의 특성에 미치는 영향
Effect of Types of Silane Coupling Agents on the Properties of Waterborne Polyurethane
Yong Tak Shin
Ji Hyeon Hwang
Min Gi Hong
Jin Joo Choi
Won Ki Lee1
Gyoung Bae Lee1
Byung Won Yoo1
Myung Goo Lee2
Ki Chang Song†
건양대학교 화공생명학과, 320-711 충남 논산시 내동 26 1한진화학주식회사 기술연구소, 437-801 경기도 의왕시 고천동 333 2케이엘텍, 445-902 경기도 화성시 봉담읍 유리 68
Department of Chemical and Biochemical Engineering, Konyang University, 26 Nae-dong, Nonsan, Chungnam 320-711, Korea 1Technical Research Institute, Hanjin Chemical Co., LTD, 333 Gocheon-dong, Uiwang-si, Gyeonggi 437-801, Korea 2KL Tech., 68 Yu-ri, Bongdam eup, Hwaseong-si, Gyeonggi 445-902, Korea
Korean Chemical Engineering Research, June 2011, 49(3), 285-291(7), NONE Epub 8 June 2011
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Abstract
Isophorone diisocyanate(IPDI), poly(tetramethylene glycol)(PTMG), dimethylol propionic acid(DMPA)를 출발물질로 하여 NCO terminated prepolymer가 합성되었다. 이 prepolymer의 NCO기를 실란으로 capping하기 위해 다양한 실란커플링제인 methyltrimethoxysilane(MTMS), glycidoxypropyl trimethoxysilane(GPTMS), methacryloxypropyl trimethoxysilane(MPTMS), aminopropyl triethoxysilane(APS)이 첨가되었다. 제조된 용액의 평균 입경은 실란커플링제가 첨가되_x000D_
면서 증가하였다. 또한 실란커플링제인 GPTMS, MPTMS, APS의 첨가는 코팅 막의 연필경도를 향상시킬 수 있었으나, MTMS의 첨가는 코팅 막의 연필경도를 향상시킬 수 없었다.
NCO terminated polyurethane prepolymers were synthesized from isophorone diisocyanat(IPDI), poly(tetramethylene glycol)(PTMG) and dimethylol propionic acid(DMPA). Subsequently, waterborne polyurethanes were prepared by capping the NCO groups of polyurethane prepolymers with different types of silane coupling agents, such as methyltrimethoxysilane(MTMS), glycidoxypropyl trimethoxysilane(GPTMS), methacryloxypropyl trimethoxysilane_x000D_
(MPTMS) and aminopropyl triethoxysilane(APS). The average particle size of the waterborne polyurethane solutions was increased by adding silane coupling agents. Also, the coating films prepared from GPTMS, MPTMS and APS, exhibited better pencil hardness than those from pure waterborne polyurethane. On the other hand, the coating films from MTMS did not show an improved pencil hardness than those from pure waterborne polyurethane.
Keywords
References
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Zhang Y, Heath RJ, Hourston DJ, J. Appl. Polym. Sci., “Morphology, Mechanical Properties, and Thermal Stability of Polyurethane-epoxide Resin Interpenetrating Polymer Network Rigid Foams", 75(3), 406 (2000)
Dadbin S, Chaplin RP, J. Appl. Polym. Sci., “Morphology and Mechanical Properties of Interpenetrating Polymer Networks of Poly(allyl diglycol carbonate) and Rigid Polyurethane", 81(14), 3361 (2001)
Yoo CS, Chun JH, Polym. Sci. Technol., “Application of Polyurethane Adhesives", 10(5), 578 (1999)
Dieterich D, Prog. Organic Coatings., “Aqueous Emulsions, Dispersions and Solution of Polyurethanes; Synthesis and Properties", 9, 281 (1981)
Lee SY, Lee JS, Kim BK, Polym. Int., “Preparation and Properties of Waterborne Polyurethanes", 42, 609 (1996)
Thapliyal BP, Prog. Polym. Sci., “Advances in Photodegradation and Stabilization of Polyurethanes", 15(5), 735 (1990)
Lee JC, Kim BK, Polym.(Korea), “Dynamic Analysis of Microphase Separations in Polyurethane Ionomers", 19(2), 223 (1995)
Ahn JB, Cho HK, Jeong CN, Noh ST, J. Korean Ind. Eng. Chem., “Preparation of Ionomeric Polyurethane Dispersions and Effects of Mixed Polyol on the Properties of Polyurethane", 8(2), 230 (1997)
Lee KH, Kim BK, Polymer, “Structure-Property Relationships of Polyurethane Ionomer Acrylates", 37(11), 2251 (1996)
Kim TK, Kim SJ, Kim BK, Polym.(Korea), “Effect of Polyol Type and Composition in Segmented Polyurethane Ionomers", 16(5), 604 (1992)
Shin YT, Hong MG, Choi JJ, Lee WK, Lee GB, Yoo BW, Lee MG, Song KC, Korean Chem. Eng. Res., “Preparation of Waterborne Polyurethane/Silica Nanocomposites Using Tetraethylorthosilicate", 48(4), 428 (2010)
Shin YT, Hong MG, Choi JJ, Lee WK, Lee GB, Yoo BW, Lee MG, Song KC, Korean Chem. Eng. Res., “Preparation of Aminosilane Terminated Waterborne Polyurethane", 48(4), 434 (2010)
Hong MG, Shin YT, Choi JJ, Lee WK, Lee GB, Yoo BW, Lee MG, Song KC, Korean Chem. Eng. Res.(HWAHAK KONGHAK)., inpress, 48(5) (2010)
Lai SM, Liu SD, Polymer Eng. Sci., “Properties and Preparation of Thermoplastic Polyurethane/Silica Hybrids Using a Modified Sol-Gel Process", 77 (2007)
ASTM D 3359, “Standard Test Methods for Measuring Adhesion by Tape Test,” ASTM International, 927-929 (1997)
