CAJ | 학술논문

以二茂铁基聚合物(PCFEDA)、膨胀型阻燃剂(IFR)和IFR/PCFEDA复合体系对低密度聚乙烯(LDPE)进行改性,通过热重分析( TGA)研究了 PCFEDA, IFR 和 IFR/PCFEDA 对 LDPE 热分解性能的影响. 结果表明,随着PCFEDA添加量的增加,PCFEDA/LDPE复合材料的最大热分解速率不断降低,残炭率越来越高. IFR可有效抑制LDPE的热降解过程,随着PCFEDA的加入,IFR/PCFEDA/LDPE复合材料热分解有一定的推迟. 复合材料在空气中燃烧后残炭的扫描电子显微镜( scanning electron microscope ,SEM)图片显示,PCFEDA/LDPE复合材料形成了非常致密的炭层,IFR/LDPE复合材料的残炭具有明显的发泡现象,而IFR/PCFEDA/LDPE复合材料残炭的发泡现象则不明显,其原因可能是PCFEDA的催化降解作用防止了发泡炭层的生长.
이이무철기취합물(PCFEDA)、팽창형조연제(IFR)화IFR/PCFEDA복합체계대저밀도취을희(LDPE)진행개성,통과열중분석( TGA)연구료 PCFEDA, IFR 화 IFR/PCFEDA 대 LDPE 열분해성능적영향. 결과표명,수착PCFEDA첨가량적증가,PCFEDA/LDPE복합재료적최대열분해속솔불단강저,잔탄솔월래월고. IFR가유효억제LDPE적열강해과정,수착PCFEDA적가입,IFR/PCFEDA/LDPE복합재료열분해유일정적추지. 복합재료재공기중연소후잔탄적소묘전자현미경( scanning electron microscope ,SEM)도편현시,PCFEDA/LDPE복합재료형성료비상치밀적탄층,IFR/LDPE복합재료적잔탄구유명현적발포현상,이IFR/PCFEDA/LDPE복합재료잔탄적발포현상칙불명현,기원인가능시PCFEDA적최화강해작용방지료발포탄층적생장.
A novel Ferrocene -containing polymer ( PCFEDA ) , Intumescent flame retardant ( IFR ) and IFR/PCFEDA were used to modify low density polyethylene (LDPE).The effects of PCFEDA, IFR and PCFEDA/PE on decomposition property of LDPE were investigated by Thermogravimetric Analysis ( TGA) . The results show that the largest thermal degradation rate of PCFEDA /LDPE composites decreases and more char forming with increase of PCFEDA loading .IFR is effective for inhibition of degradation of LDPE and PCFEDA can delay the decomposition of IFR/PCFEDA/LDPE composites .The scanning electron micro-scope (SEM) micrographs of the char residues of various composites after combustion in air show that a compact structure was formed by PCFEDA/LDPE and a foaming char was observed from IFR/LDPE.How-ever, the char foaming of IFR/PCFEDA/LDPE composite was not obvious .The reason may be due to the catalyzing degradation effect of PCFEDA in earlier stage which prevents the growth of foaming char .