Manufacture of Wood Tar-based Phenol Adhesives and Adhesive Properties

목타르계 페놀접착제의 제조 및 접착성능

  • Park Sang-Bum (Division of Wood Processing, Department of Forest Products, Korea Forest Research Institute) ;
  • Kim Su-Won (Division of Wood Processing, Department of Forest Products, Korea Forest Research Institute) ;
  • Park Byung-Dae (Division of Wood Processing, Department of Forest Products, Korea Forest Research Institute) ;
  • Han Tae-Hyung (Division of Wood Processing, Department of Forest Products, Korea Forest Research Institute) ;
  • Kang Eun-Chang (Division of Wood Processing, Department of Forest Products, Korea Forest Research Institute) ;
  • Park Jong-Young (Division of Wood Processing, Department of Forest Products, Korea Forest Research Institute) ;
  • Mun Sung-Phil (Division of Forest Science, College of Agriculture, Chonbuk National University)
  • 박상범 (국립산림과학원 임산광학부 목재가공과) ;
  • 김수원 (국립산림과학원 임산광학부 목재가공과) ;
  • 박병대 (국립산림과학원 임산광학부 목재가공과) ;
  • 한태형 (국립산림과학원 임산광학부 목재가공과) ;
  • 강은창 (국립산림과학원 임산광학부 목재가공과) ;
  • 박종영 (국립산림과학원 임산광학부 목재가공과) ;
  • 문성필 (전북대학교 농과대학 산림과학부)
  • Published : 2005.06.01

Abstract

To find a new use of wood tar which is obtained from the manufacturing process of wood charcoal, a resol type of phenol adhesive using wood tar was made and some adhesion tests on plywood were examined. Phenol adhesive synthesized with pine tar was almost same as an original phenol adhesive in physical properties such as solid content and viscosity and tensile-shear adhesive strength of plywood made of phenol adhesive synthesized with pine tar was not much lower than the original one in non-waterproof and waterproof tests. Phenol adhesive synthesized with oak tar, however, was different from original phenol adhesive in physical properties. Adhesive strength of plywood made of oak tar was $50\%$ lower than the original one on waterproof tests. The amount of emitted formaldehyde increased as the amount of wood tar increased.

목탄의 제조과정에서 발생되는 목타르의 신용도를 찾고자 목타르를 이용한 레졸형 페놀수지접착제를 제조하여, 합판에 대한 접착력 시험을 실시하였다. 소나무타르계 접착제는 미첨가 페놀접착제와 비교했을 때, 고형분, 점도와 같은 수지의 물성은 유사하였으며, 인장 전단 접착력에서도 비내수, 내수 모두 페놀접착제에 비해 크게 떨어지지 않았다. 그러나, 참나무타르계 접착제의 경우에서는 수지물성도 페놀수지와는 다른 물성을 보였으며, 내수접착력은 페놀접착제의 접착력에 비해 절반 정도의 낮은 접착력을 보였다. 포름알데히드 방출량은 목타르의 첨가량이 많을수록 많이 방출되었다.

Keywords