songxiaofeng
|
- Supervisor of Doctorate Candidates
- Supervisor of Master's Candidates
- Name (Pinyin):songxiaofeng
- Date of Birth:1972-12-26
- School/Department:化学工程学院
- Administrative Position:系主任
- Education Level:Postgraduate (Postdoctoral)
- Business Address:化工楼6226
- Contact Information:13080037022（微信）/QQ:15359494615
- Degree:Doctoral Degree in Science
- Alma Mater:吉林大学
- Teacher College:化学工程学院
- Discipline:Polymer Chemistry and Physics
Applied Chemistry
Contact Information
No content
- Paper Publications
【SCI2区通讯作者宋晓锋】A green COPD flame retardant for improving poly(l-lactic acid)
Release time:2022-09-30 Hits:
- Affiliation of Author(s):化学工程学院
- Journal:Polymer Degradation and Stability
- Funded by:其他课题
- Abstract:A green flame retardant COPD is synthesized by using chitosan oligosacc- haride (COS), p- hydroxybenzaldehyde and 9,10-dihydro-9-oxa-10-phospho-10-oxide (DOPO) as raw materials according to two-step reaction. The synthesized product is confirmed with FTIR, UV and NMR. When the COPD is inserted into poly(l-lactic acid) (PLLA) via solution blending, the flame retardation of PLLA is improved. As the blend ratio of COPD/PLLA is 20/80, the limit oxygen index (LOI) and UL-94 vertical burning grade 25% and V-1, respectively. The heat release rate (HRR), total heat release (THR), and average effective heat re- lease (av-EHR) decrease in conical calorimetry. The composite also exhibits good carbon forming capacity. The flame retardation mainly originates from cooperation of condensation phase with gas phase process. Since the poor miscibility limit the dispersibility of COPD in PLLA matrix, the flame resistance and me- chanical performance of composite are to compromised. The flame retardation for PLLA is anticipated due to green raw material is used and alternative process such as melt blending and adding compatibility can be adopted.
- Co-author:沈月石,宋晓峰
- First Author:songxiaofeng
- Indexed by:Journal paper
- Volume:195
- Page Number:1
- Translation or Not:no
- Date of Publication:2022-01-01