CAJ | 학술논문

合成出新型单组份磷-氮膨胀型阻燃剂2-环季戊四醇磷酸酯-4,6-对氨基苯磺酸钠均三嗪(CTOB),通过FT-IR,1H NMR和31 P NMR对其结构进行表征。以CTOB与有机蒙脱土( OMMT)为原料,制备出阻燃型CTOB/ OMMT/ Nylon 6复合材料。热重分析表明：CTOB和OMMT的加入能有效提高尼龙6的热稳定性能和成炭性能,通过极限氧指数( LOI)、锥形量热、垂直燃烧实验(UL-94)和TGA对CTOB/ OMMT/ Nylon 6复合材料的阻燃性能进行研究。结果表明,CTOB和 OMMT在尼龙6中表现出良好的协同阻燃效果,CTOB/OMMT/ Nylon 6的氧指数可达28.0%,垂直燃烧性能达到UL-94 V-0级,阻燃后的尼龙6其PHRR 和 THR分别下降了65.7%和49.3%。 CTOB/ OMMT/ Nylon 6燃烧后,表面可生成致密性良好的膨胀炭层,膨胀炭层的形成是有效提高Nylon 6阻燃性能的关键因素。
합성출신형단조빈린-담팽창형조연제2-배계무사순린산지-4,6-대안기분광산납균삼진(CTOB),통과FT-IR,1H NMR화31 P NMR대기결구진행표정。이CTOB여유궤몽탈토( OMMT)위원료,제비출조연형CTOB/ OMMT/ Nylon 6복합재료。열중분석표명：CTOB화OMMT적가입능유효제고니룡6적열은정성능화성탄성능,통과겁한양지수( LOI)、추형량열、수직연소실험(UL-94)화TGA대CTOB/ OMMT/ Nylon 6복합재료적조연성능진행연구。결과표명,CTOB화 OMMT재니룡6중표현출량호적협동조연효과,CTOB/OMMT/ Nylon 6적양지수가체28.0%,수직연소성능체도UL-94 V-0급,조연후적니룡6기PHRR 화 THR분별하강료65.7%화49.3%。 CTOB/ OMMT/ Nylon 6연소후,표면가생성치밀성량호적팽창탄층,팽창탄층적형성시유효제고Nylon 6조연성능적관건인소。
A novel P-N containing intumescent flame retardant, 2-cyclic pentaerythritoloctahydrogen tetraphosphate-4,6-benzene sulfonic acid sodium ammion-triazine ( CTOB) was synthesized and used as an additive in intumescent flame retardant composites containing organic montmorillonite (OMMT) and Nylon 6. The thermal stability and flammability properties of Nylon 6, CTOB, OMMT and their composites were investigated by TGA, limiting oxygen index ( LOI) and cone calorimeter tests. Synergistic effects between CTOB and OMMT in the Nylon 6/CTOB/OMM composite were observed. A combination of CTOB and OMMT improved the thermal stability and the flammability properties of Nylon 6 and increased the LOI value to 28. 0%. The average and peak heat release rates of the ternary composite were reduced by about 65. 7 and 49. 3%, respectively, compared with those of Nylon 6. The residue generated after the cone calorimeter tests upon combustion of the ternary composite was a compact and dense char as revealed by SEM, which is critically important for an excellent flame retardant.