【作者】 荣荣； 顾继友； 张彦华；

【Author】 The Material Science and Engineering College of Northeast Forestry University,Harbin,150040

【机构】 东北林业大学材料科学与工程学院；

【摘要】 为满足UF/石粉复合材料室温30min内快速固化的要求,首先选定以15%氯化铵为主剂的二元固化剂体系来进行研究,然后选出硝酸、磷酸和柠檬酸进一步研究。结果表明,以6%硝酸为固化剂的试件综合力学性能较好,以10%柠檬酸/5%磷酸为固化剂的试件弯曲强度较高,体积收缩率小。更多还原

【Abstract】 In order to meet the fast curing requirements of UF/powder composites under room temperature within 30min,15%ammonium chloride was select as the main additive of two component curing agent system.Further study was selected nitric acid,phosphoric acid and citric acid as curing agent.The results show that sample have good comprehensive mechanical properties when 6%nitric acid as curing agent.When 10%citric acid and 5% phosphoric acid as a two component curing agent,sample have high bending strength and small volume shrinkage.更多还原