摘要
采用碱法提取粮食加工废弃物——稻壳中的木质素,利用木质素与双酚A结构相似,对二者进行共混,并在碱催化下与环氧氯丙烷反应合成木质素基双酚A型环氧树脂。结果发现:当木质素替代双酚A的质量分数为20%时,所制得的双酚A型环氧树脂的环氧值最大为0.30,重均分子量为6 045,分子量分布相对均一。
Lignin was extracted using alkali distillation from rice husk,which is the food processing waste.As the structure of lignin and bisphenol A is similar,lignin modified bisphenol A epoxy resin could be prepared under alkali as catalyst by blending them.It can be concluded that when the lignin substitution rate was 20%,the epoxy value of the epoxy resin was 0.3,the weight-average molecular weight was 6 045,and the molecular weight distribution was relatively uniform.
出处
《食品与机械》
CSCD
北大核心
2015年第6期4-6,112,共4页
Food and Machinery
基金
国家自然科学基金项目(编号:21501069
21401079)
江苏省自然科学基金(编号:BK2014158)
高等学校博士学科点专项科研基金(编号:20130093120003)
关键词
稻壳
木质素
双酚A型环氧树脂
环氧值
分子量
rice husk
lignin
bisphenol A epoxy resin
epoxy value
molecular weight
