收稿日期: 2016-07-22
修回日期: 2016-11-04
网络出版日期: 2017-05-02
基金资助
国家自然科学基金资助项目(21476090);国家重点基础研究发展计划(973 计划)项目(2013CB228104);华南理 工大学中央高校基本科研业务费专项资金资助项目
Synthesis of Phenol-Furfural Resins Using Hydrogenolysis Products of Lignin Regenerated via Ionic Liquid Pretreatment
Received date: 2016-07-22
Revised date: 2016-11-04
Online published: 2017-05-02
Supported by
Supported by the National Natural Science Foundation of China(21476090) and the National Program on Key Basic Research Project of China(973 Program)(2013CB228104)
常杰 , Kassanov Bekbolat , 王菊 , 刘钧 , 付严 . 离子液体木质素氢解产物制备酚醛树脂[J]. 华南理工大学学报(自然科学版), 2017 , 45(6) : 89 -95 . DOI: 10.3969/j.issn.1000-565X.2017.06.014
A hydrogenolysis process was performed for regenerated bamboo lignin after [AMIM]OAc pretreatment by using a high-pressure batch autoclave with a rotation rate of 450r/min in 2MPa H 2 atmosphere at 260℃ for 80min,and a GC-MS analysis was conducted,finding that most hydrogenolysis products of lignin (HPL) are phenolic com- pounds with short chains or aromatic compounds containing phenol hydroxyl.Then,HPL was used as a substitution for phenol to synthesize phenol-furfural resins (PFU),and the effects of substitution rate of HPL for phenol on the bond strength,solid content,curing time,free formaldehyde content,free phenol content and viscosity of PFU were investigated.The results show that,at a substitution rate of 60%,the lignin-based PFU is of a bond strength up to 2. 06MPa as well as a free phenol content lower than those regulated by Chinese national standards,and the curing time greatly shortens.Moreover,DSC results indicate that the lignin-based PFU possesses strong thermosta- bility.
Key words: ionic liquid; hydrogenolysis; lignin; hydrogenolysis product; phenol-furfural resin
/
| 〈 |
|
〉 |