应用化学2017，Vol.34Issue(6)：631-635,5.DOI:10.11944/j.issn.1000-0518.2017.06.160317
高残炭硼酚醛树脂的制备
Preparation of Boron Phenolic Resin with High Char Yield
摘要
Abstract
Phenolic resin(PF) is widely used due to its excellent heat resistance and mechanical properties.But its heat resistance cannot meet the demand of modern science and technology.Preparation of boron phenolic resin(BPF) with excellent high temperature resistance through borate esterification method, and when n(phenol)∶n(formaldehyde) is 1∶1.5, the corresponding BPF exhibits the best heat resistance.The thermal analysis results show that the char yield of BPF is 78% at 1000 ℃, which is better than those of traditional phenolic resin and commercially available boron phenolic resin.The influence of boric acid content on the heat resistance of BPF was also discussed.When n(boric acid)∶n(phenol) is more than 0.33∶1, the char yield of BPF tends to be constant.In addition, the pre-curing and the post curing temperatures of BPF determined by DSC analysis are 160 ℃ and 220 ℃, respectively.关键词
硼酚醛树脂/耐热性/抗烧蚀性/剪切强度Key words
boron phenolic resin/heat resistance/ablation resistant ability/shear strength分类
化学化工引用本文复制引用
林松竹,崔巍,贾若琨,刘畅..高残炭硼酚醛树脂的制备[J].应用化学,2017,34(6):631-635,5.基金项目
国家自然科学基金资助项目(21404100) （21404100）
Supported by the National Natural Sciences Foundation of China(No.21404100) （No.21404100）
