TBA法によるフェノール・レゾルシノール樹脂接着剤の常温硬化性の評価

概要

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Four kinds of RF and PRF wood adhersives were prepared and their curing behavior at ambient temperature was evaluated using the TBA method. The TBA curves obtained under isothermal and non-isothermal conditions revealed the difference in curing behaviour among the resins. It was found that curing measurements conducted at a constant heating rate were convinient for the comparison of the curing rate of the resins differing in resorcinol content. On the other hand, measurements carried out at a constant temperature were suitable for the determination of curing characteristics of the resins. It was observed that CH_2O was readily evolved during TBA measurements which affected the curing properties of the resins. Therefore, viscoelastic measurements were carried out for the resin impregnated in glass braind, sealed and cured. The results show clealy that this method is useful for the evaluation of ambient temperature setting properties of the PRF adhesives.
社団法人日本材料学会の論文
1985-08-15