摘要:
Provided is a phenol resin foam that has low initial thermal conductivity and that retains low thermal conductivity for a long period of time. The present phenol resin foam may contain a cyclopentane and a high-boiling hydrocarbon with a boiling point of from 120 °C to 550 °C and may have a density of from 10 kg/m 3 to 150 kg/m 3 . The content of the cyclopentane in the phenol resin foam per 22.4 × 10 -3 m 3 space volume in the phenol resin foam is from 0.25 mol to 0.85 mol.
摘要翻译:本发明提供一种初始导热系数低,长时间保持低导热系数的酚醛树脂发泡体。 本发明的酚醛树脂发泡体可以含有环戊烷和沸点为120-550℃的高沸点烃,并且可以具有10kg / m 3至150kg / m 3的密度。 酚醛树脂发泡体中的22.4×10 -3 m 3空间体积中的酚醛树脂发泡体中的环戊烷的含量为0.25摩尔〜0.85摩尔。