폐목재 칩 결합용 친환경 폴리우레탄 수지의 개발 및 활용 연구 (A Study on the Development and Use of Eco-friendly Polyurethane Resin for Binding Waste Wood Chip)

서지정보

· 발행기관 : 한국폐기물자원순환학회
· 수록지 정보 : 한국폐기물자원순환학회지 / 30권 / 8호 / 889 ~ 896페이지
· 저자명 : 최재진, 이관호, 조남욱, 문승권

초록

In order to utilize waste wood chip for pavement, a polyurethane resin that is both eco-friendly and suitable for binding wood chip was developed as the binder, and workability was examined through laboratory experiment for characteristics of waste wood chip mixture using the polyurethane resin and through test pavement on the field. The new resin was a VOC reduction type free from plasticizer and solvent classified as endocrine-disrupting chemicals and environmental hazardous substances, and NCO equivalents were set at 8, 9, 10 and 11% by modifying the polyisocyanate-polyol ratio. Laboratory experiment showed that polyurethane resin with NCO equivalent of 9% and 10% had excellent characteristics as binder for waste wood chip. In the field experiment applying waste wood chip and polyurethane resin in the mass ratio of 1:0.8, tensile strength of the pavement system was about 30% higher than that using polyurethane resin currently being sold, and permeability coefficient and elasticity thereof were the same as that using the resin currently being sold. Also, examination of compaction methods for waste wood chip pavement system showed that non-heating hand roller and compactor had the problem of the “waste wood chip - resin mixture” sticking to the roller during the compaction but that heating hand roller had excellent workability and could achieve good planation surface relatively easily.

영어초록

In order to utilize waste wood chip for pavement, a polyurethane resin that is both eco-friendly and suitable for binding wood chip was developed as the binder, and workability was examined through laboratory experiment for characteristics of waste wood chip mixture using the polyurethane resin and through test pavement on the field. The new resin was a VOC reduction type free from plasticizer and solvent classified as endocrine-disrupting chemicals and environmental hazardous substances, and NCO equivalents were set at 8, 9, 10 and 11% by modifying the polyisocyanate-polyol ratio. Laboratory experiment showed that polyurethane resin with NCO equivalent of 9% and 10% had excellent characteristics as binder for waste wood chip. In the field experiment applying waste wood chip and polyurethane resin in the mass ratio of 1:0.8, tensile strength of the pavement system was about 30% higher than that using polyurethane resin currently being sold, and permeability coefficient and elasticity thereof were the same as that using the resin currently being sold. Also, examination of compaction methods for waste wood chip pavement system showed that non-heating hand roller and compactor had the problem of the “waste wood chip - resin mixture” sticking to the roller during the compaction but that heating hand roller had excellent workability and could achieve good planation surface relatively easily.

참고자료

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