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학술발표회초록보기

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  • 09월 01일 18시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제118회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Thermal properties of wood adhesives based on carbohydrates and pMDIs

등록일
2016년 8월 31일 16시 08분 19초
접수번호
2252
발표코드
POLY.P-84 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 13일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
이향렬
한국교통대학교 생명공학과, Korea
The use of formaldehyde based adhesives such as urea-formaldehyde(UF) and phenol-formaldehyde(PF) have recently drown the attention of the public due to environmental issue. Formaldehyde can be produced by decompositions and will gradually release to the surrounding environment. We have developed a procedure to synthesize environment-friendly carbohydrate-pMDI based wood adhesives and investigated their physical properties. Thermal properties of the rice powder (RP) based polyurethane resins were characterized by differential scanning calorimetry (DSC) and Thermal gravimetric analysis (TGA). Thermal stability of polyurethane resins increased to 250℃ with adding pMDIs. The more pMDI (M5S) was added to adhesive, the higher thermal stability of the resin was observed by TGA. Tc of the resin (RP:M5S=1:3) showed at 107.3℃, whereas the resin (RP/M20S = 1:3) showed much lower Tc at 99.6℃. Thermal stability of PU resins increased to 250℃ with adding pMDIs. The more pMDI(M5S) was added to adhesive, the higher thermal stability of the resin was observed by TGA. This was supported by Korea National University of Transportation in 2016.

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