摘要
木质素与三聚氰胺反应制得改性木质素,再用改性木质素与市售阻燃剂XDP反应,制备出“三位一体”阻燃剂,以改善XDP阻燃剂在丙烯腈-丁二烯-苯乙烯共聚物(ABS)中的耐热耐燃性。改性阻燃剂与ABS复配通过挤出造粒、注塑制备含有不同比例阻燃剂的复合材料。利用红外光谱(FTIR)、X射线光电子能谱(XPS)对制备出的改性阻燃剂进行表征,利用热失重/热失重速率(TG/DTG)、扫描电镜(SEM)、冲击强度、极限氧指数(LOI)等对复合材料的耐燃耐热性能与力学性能进行探究。结果表明,用木质素改性后的“三位一体”阻燃剂不仅可增加ABS残炭炭层的致密性和连续性,提高ABS的残炭率,并且在提高ABS阻燃性能的情况下,对ABS的力学性能影响不大。
The lignin reacted with melamine to prepare modified lignin.The modified lignin was then reacted with commercially available flame retardant resorcinol diphosphate(XDP)to prepare a"trinity"flame retardant to improve the heat and flame resistance of XDP flame retardant in acrylonitrile butadiene styrene(ABS).The modified flame retardant and ABS were compounded by extrusion granulation and injection molding to prepare composite materials containing different proportions of flame retardants.The modified flame retardant was characterized by infrared spectroscopy(FTIR)and X-ray crown electron spectroscopy(XPS).The fire resistance of composites was investigated by thermal weight loss/thermal weight loss rate(TG/DTG),scanning electron microscopy(SEM),impact strength and limited oxygen index(LOI).Thermal performance and mechanical properties were explored.The results show that the"trinity"flame retardant modified with lignin can increase the density and continuity of the ABS carbon residue and improve the carbon residue rate of ABS.And under the condition of improving the flame retardancy of ABS,there is no effect on the mechanical properties of ABS.
作者
李欣月
徐永田
朱义新
王菊琳
LI Xin-yue;XU Yong-tian;ZHU Yi-xin;WANG Ju-lin(School of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100000,China;Synthetic Resin Plant of PetroChina Jilin Petrochemical Company,Jilin 132000,China;PetroChina Jilin Petrochemical Company Liaoyuan Chemical Co.,Ltd.,Jilin 132000,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2019年第11期10-14,共5页
China Plastics Industry
