覆膜砂用环保型酚醛树脂的制备  

Preparation of Environment-friendly PF Resin for Resin Coated Sand

作　　者：马驰 仇雪[2] 张绍中 

机构地区：[1]辽宁省石油化工规划设计院有限公司,辽宁沈阳110004 [2]沈阳化工大学,辽宁沈阳110004

出　　处：《当代化工》2016年第11期2514-2516,共3页Contemporary Chemical Industry

基　　金：格平绿色行动--辽宁环境科研教育"123工程"资助;中华环保基金会项目项目号:CEPF2013-123-2-9

摘　　要：介绍了一种新覆膜砂酚醛树脂的制造工艺,通过与现有工艺比较,采用多种酸三次催化的新方法制备出合格的覆膜砂专用热缩型酚醛树脂。通过大量实验,改变反应原料配比、反应时间、温度及催化剂等条件,在较低工艺要求的条件下,制备出残酚含量低、性能优越的产品,达到节能环保的效果。应用该环保型酚醛树脂制备出覆膜砂的强度比传统工艺制备的产品强度要高。A new preparation process of coated sand phenolic resin was introduced. Compared with existing processes, the new process used kinds of acids to prepare coated sand phenolic resin. Through changing the process conditions including the reaction time, reaction temperature, amount of catalyst, ratio of reactants and other factors, the product with superior performance and low residual phenol concentration was synthesized; the ultimate goal of energy conservation and environmental protection was achieved. And the intensity of resin coated sand prepared with environmental protection PF resin was higher.

关 键 词：酚醛树脂 覆膜砂 酸性催化剂 苯酚含量 

分 类 号：TQ325[化学工程—合成树脂塑料工业]