songxiaofeng
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- 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
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- Paper Publications
【SCI第二通讯作者宋晓锋】Antiflaming poly(L-lactide) by synthesizing polyurethane with phosphorus and nitrogen
Release time:2022-10-14 Hits:
- Affiliation of Author(s):化学工程学院
- Journal:Polymers for Advanced Techologies
- Funded by:其他课题
- Abstract:A novel polyurethane containing phosphorus and nitrogen (PU) was synthesized and characterized with 1H-NMR, FTIR, and GPC. It was served as flame retardant to blend with poly(L-lactide) (PLLA) through solution casting technique. PU particle dispersed in PLLA substrate irregularly and improved the crystallinity of PLLA. The initial decomposition temperature of PLLA composite was significantly lower, but char residue increased. Flame retardancy and mechanical properties of PU/PLLA blends were evaluated. When the blend ratio of PU/PLLA was 10 wt%, LOI was 26.8%, and UL94 test reached V-2 grade. The inflaming retarding mechanism was outlined. The tensile strength of PLLA blend was 42.8 MPa, while its elongation at break was only 2%. By adjusting PU and adding compatilizer, the balance between flame retardancy and good mechanical properties of PLLA would be controlled.
- Co-author:孙琦浩,宋晓峰
- First Author:songxiaofeng
- Indexed by:Journal paper
- Volume:33
- Page Number:1
- Translation or Not:no
- Date of Publication:2022-01-01