采用热红外技术对酚醛树脂进行研究早有报导。Bieron用这一技术详细研究了酚醛树脂的热降解,并对一些吸收谱带的归属作了说明。Zinke研究了酚醛固化时的化学过程,指出其固化热交联分为二步:一是两个羟甲基脱水形成醚桥,二是在更高温度下醚桥脱醛形成亚甲基桥链。Hummel也研究了这一过程,得到了相同的结果,同 The use of thermal infrared technology to study the phenolic resin has long been reported. Bieron used this technique to study the thermal degradation of phenolic resins in detail, and illustrates the assignment of some absorption bands. Zinke studied the chemical process of phenolic curing, and pointed out that the curing heat-crosslinking is divided into two steps: one is the dehydration of two methylol groups to form an ether bridge, and the other is the deprotection of ether bridges to form methylene bridges at higher temperatures . Hummel also studied this process and got the same result, the same