Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
권호 표지

Development of Rice Hull Insulation Board using Urea Formaldehyde Resin

요소수지(尿素樹脂) 연질(軟質) 왕겨보드의 개발(開發)

  • Lee, Hwa-Hyoung (Department of Forest products, Chungnam National University) ;
  • Kang, Chun-Won (Dept. Forest Products. Iri National College of Air. and Tech.)
  • 이화형 (충남대학교 임산공학과) ;
  • 강춘원 (이리농공전문대학 임산공업과)
  • Received : 1998.01.22
  • Published : 1998.12.30
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Abstract

This study was carried out to develop low density board made of rice hull which needs proper use. Urea formaldehyde adhesive(UF) was used. The raw materials were the mixtures of the rice hulls from IllFum, DongGin, ChuChong, etc. The physical and mechanical properties of rice hull insulation board were examined. The results are as follows : For the thickness of 15mm of the low density rice hull board bonded with UF resin, proper manufacturing conditions were $171^{\circ}C$ of hot pressing temperature with thickness bar for optimum density, 12 percent of resin solid contents of rice hull ovendry weight, and 20 minutes of hot pressing time. These conditions meet Korean standards(KS 3201-1982) in relation to free formaldehyde emission, bending strength, water absorption and heat resistance.

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