Resol type phenol-formaldehyde (PF) resin was synthesized by addition reaction offormaldehyde (F) and phenol (P). And the PF resin was synthesized by condensation reaction in which water was removed. In this work, we studied the influence of experimental parameters in the addition reaction, such as F/P mole ratio, amount of catalyst, reaction temperature, reaction time, and so on. Also, we studied the influence of molecular weight and viscosity of PE resin as a function of condensation time. As a result, in additino reaction, the reaction time decreased remarkably as the catalyst concentration increased, and the time decreased with increasing reaction temperature at a constant catalyst concentration Also, in condensation reaction, the viscosity of resol type PF resin increased from 1500 to 9000 cpas as a function of condensation time; molecular weight showed from 500 to 1100 g/mol.

Resol형 페놀수지(phenol-formaldehyde (PF) resin)는 페놀(phenol: P)에 포름알데히드(formaldehyde: F)를 첨가하여 반응시키는 부가반응과 물을 제거하는 축합반응에 의해 합성된다. 본 연구에서는 부가반응 반응변수인 F/P몰비, 촉매의 농도, 반응온도 및 반응시간 등의 영향에 관하여 연구하였다. 또한 반응시간의 조절에 따른 합성된 페놀수지의 분자량과 점도에 미치는 영향을 조사하였다. 실험결과, 부가반응에서 촉매농도와 반응온도가 높아질수록 반응시간은 크게 감소되는 경향을 나타내었다. 또한 축합반응에서 페놀수지의 점도는 반응시간이 증가할수록 1500cps에서 9000 cps까지 증가하였고, 분자량은 500~1100 g/mol 범위의 저 분자량을 나타내었다.