CAJ | 학술논문

以三聚氰胺磷酸盐（MP）和季戊四醇磷酸酯（PEPA）复配的膨胀型阻燃体系阻燃聚(3-羟基丁酸酯-co-4-羟基丁酸酯)[P(3,4)HB]，分别用木质素、壳聚糖和海藻酸钠3种天然高分子作为成炭剂代替部分 PEPA，采用熔融共混法制备 P(3,4)HB 基阻燃复合材料。通过热重分析仪（TGA）、微型量热仪（MCC）、垂直燃烧仪（UL-94）、极限氧指数仪（LOI）及扫描电镜（SEM）等对其热稳定性、热燃烧性能、阻燃特性及炭渣形貌进行了表征与分析，对比研究了3种天然高分子对 P(3,4)HB 基复合材料阻燃性能的影响。结果表明：含有木质素的复合材料体系燃烧后形成了致密而连续的炭层，且能达到 V-0级别，而含壳聚糖或海藻酸钠的复合材料体系燃烧后形成的炭层结构多孔而疏松，只能达到 V-2级。
이삼취청알린산염（MP）화계무사순린산지（PEPA）복배적팽창형조연체계조연취(3-간기정산지-co-4-간기정산지)[P(3,4)HB]，분별용목질소、각취당화해조산납3충천연고분자작위성탄제대체부분 PEPA，채용용융공혼법제비 P(3,4)HB 기조연복합재료。통과열중분석의（TGA）、미형량열의（MCC）、수직연소의（UL-94）、겁한양지수의（LOI）급소묘전경（SEM）등대기열은정성、열연소성능、조연특성급탄사형모진행료표정여분석，대비연구료3충천연고분자대 P(3,4)HB 기복합재료조연성능적영향。결과표명：함유목질소적복합재료체계연소후형성료치밀이련속적탄층，차능체도 V-0급별，이함각취당혹해조산납적복합재료체계연소후형성적탄층결구다공이소송，지능체도 V-2급。
MP,PEPA were composed to be intumescent flame retardant (IFR),then three natural polymers,lignin,chitosan and sodium alginate,were selected to substitute for part of PEPA,the flame-retardant composites based on P(3,4)HB were prepared by means of melt blending. The thermal property,combustion performance,flame retardant and residue morphology were investigated by TGA, MCC, UL-94, LOI and SEM,respectively. The results showed that the composite contained lignin formed a compact and continuous char layer after burning and can reach UL-94 V-0 level. However, the addition of chitosan and sodium alginate made the char layer porous and loose and the composites can only reach V-2 level.