多元聚合CO_2硬化碱性酚醛树脂合成工艺的优化  

Optimization of Synthetic Technology for Multiple Polymerization CO_2-Hardened Phenol Formaldehyde Resin

作　　者：任玉艳[1] 李英民[1] 刘伟华[1] 徐菁华[2] 

机构地区：[1]沈阳工业大学材料科学与工程学院,辽宁沈阳110178 [2]沈阳工业大学理学院,辽宁沈阳110178

出　　处：《铸造》2009年第1期64-66,共3页Foundry

基　　金：辽宁省自然科学基金项目(20042026)

摘　　要：介绍了一种新型、绿色环保、经济高效、冷芯盒法用粘结剂的合成工艺优化试验。以氢氧化钠为催化剂,苯二酚或双酚A为改性剂,苯酚和甲醛进行合成试验,并对样品的溃散性、发气性进行测试,确定了CO2硬化碱性酚醛树脂的较佳改性合成工艺。以抗压强度为主要考察指标,通如CO2气体的树脂砂芯硬化后,获得了较高初强度和终强度。The paper presents a new type cold-box resin binder with environment-friendly： energy-save and high-efficiency and its optimum synthetic process test. Using NaOH as catalyst and hydroquinone or bisphenol A as modifier, phenol and formaldehyde were synthesized. Moreover, technical data, such as collapsibility, gasevolution were tested. The optimum modified synthetic process of CO2-cured alkaline resol phenol-aldehyde resin was finally determined. Using the compression strength as the main inspection factor and passing carbon dioxide gas through the resin bonded sand, much higher original strength and final strength can be achieved.

关 键 词：碱性酚醛树脂 化学合成 CO2硬化树脂砂 工艺性能试验 

分 类 号：TG221[金属学及工艺—铸造] TQ323.1[化学工程—合成树脂塑料工业]