华东理工大学学报（自然科学版）2017，Vol.43Issue(6)：793-799,7.DOI:10.14135/j.cnki.1006-3080.2017.06.007
酚醛树脂的物化性质对其发泡行为的影响
Effect of Physical and Chemical Properties of Phenol-Formaldehyde Resin on Its Foaming Behaviors
摘要
Abstract
Carbon foams were prepared without any curing agent using four kinds of commercial phenolformaldehyde resins as raw carbonaceous precursors.To improve the self-foaming mechanism,relationship between physical and chemical properties of phenol-formaldehyde resin,foaming conditions and pore structure of carbon foam was investigated.Without curing agent,the decomposition and viscositytemperature performance of phenol-formaldehyde resin during the foaming process are the main factors on its foaming behaviors.If the viscosity of phenol-formaldehyde resin is less than 2 × 104 Pa · s during the foaming process,carbon foam with spherical and uniform pore structure can be obtained with pore diameter of 300～500 μm.Foaming pressure affects the cell density of carbon foam as well as its homogeneity of pore structure.关键词
酚醛树脂/泡沫炭/发泡机理Key words
phenol-formaldehyde resin/carbon foam/foaming mechanism分类
化学化工引用本文复制引用
陈峰,王艳莉,詹亮..酚醛树脂的物化性质对其发泡行为的影响[J].华东理工大学学报（自然科学版）,2017,43(6):793-799,7.基金项目
国家自然科学基金(51472086,51002051) （51472086,51002051）
上海市自然科学基金(12ZR1407200) （12ZR1407200）
