降低食品罐涂料用酚醛树脂中游离酚的研究  

Study on Reducing the Content of Free Phenol in Phenol-formaldhyde Resin for Food Can Coatings

作　　者：孙明超[1] 徐日炜[1] 胡向蔚[2] 余鼎声[1] 刘炎桥[2] 费鹏展[1] 

机构地区：[1]北京化工大学材料科学与工程学院 [2]中国食品发酵工业研究院,北京100027

出　　处：《食品与发酵工业》2005年第6期50-53,共4页Food and Fermentation Industries

摘　　要：以双酚A,甲醛水溶液为原料,在碱性催化剂的作用下,合成双酚A型甲阶酚醛树脂。研究了反应温度、催化剂用量、加料顺序、升温方式等因素对合成产物中游离酚含量的影响,并用红外光谱和GPC方法对产物的结构进行了表征。发现反应温度在70℃,催化剂用量为4%,采用双酚A先与碱性催化剂混合并分段升温合成出的食品罐涂料用酚醛树脂综合性能最佳。A phenolic resin was synthesized from bisphenol A and aqueous formaldehyde in the presence of basic catalyst. The effects of reaction temperature,catalyst content,different mixing procedures and heating modes on the content of free phenol were investigated,and the structures of products were also measured by IR spectrum and GPC.The optimum technological conditions were obtained.

关 键 词：涂料用 食品罐 游离酚 碱性催化剂 催化剂用量 甲阶酚醛树脂 反应温度 甲醛水溶液 双酚A型 加料顺序 合成产物 升温方式 红外光谱 综合性能 酚含量 GPC 

分 类 号：TS206[轻工技术与工程—食品科学]