CAJ | 학술논문

采用熔融共混的方法制备了不同配比的有机蒙脱土(OMMT)填充丙烯腈-丁二烯-苯乙烯(ABS)/尼龙6(PA6)共混物。通过抽提、SEM、TEM、XRD等表征手段研究了OMMT在PA6相中的定向分散现象及共混体系相结构的演变规律。结果表明, OMMT可以定向分散在ABS/PA6共混物的PA6相中,使形成共连续结构的聚合物比例范围变宽；随着OMMT含量的增加,形成共连续结构所需的PA6的含量降低,同时相尺寸减小；OMMT的临界含量(m(OMMT))和形成共连续PA6的质量分数(m(PA6))存在近似的反比关系,其特征参数n值约为8,据此可根据共混体系中PA6的含量,推算形成相反转所需的OMMT添加量,为相关共混物的制备提供有益的借鉴。
채용용융공혼적방법제비료불동배비적유궤몽탈토(OMMT)전충병희정-정이희-분을희(ABS)/니룡6(PA6)공혼물。통과추제、SEM、TEM、XRD등표정수단연구료OMMT재PA6상중적정향분산현상급공혼체계상결구적연변규률。결과표명, OMMT가이정향분산재ABS/PA6공혼물적PA6상중,사형성공련속결구적취합물비례범위변관；수착OMMT함량적증가,형성공련속결구소수적PA6적함량강저,동시상척촌감소；OMMT적림계함량(m(OMMT))화형성공련속PA6적질량분수(m(PA6))존재근사적반비관계,기특정삼수n치약위8,거차가근거공혼체계중PA6적함량,추산형성상반전소수적OMMT첨가량,위상관공혼물적제비제공유익적차감。
In this work,a melting blending method was used to prepare acrylonitrile-butadiene- styrene (ABS)/polyamide 6 (PA6)blends with OMMT.The effect of OMMT dispersion on the morphology evolution of ABS/PA6 blends was studied by SEM,XRD and TEM.It was found that the OMMT network were selectively dis-persion in the PA6 phase.The addition of OMMT leads to a phase transition from a sea-island structure to a co-continuous one.With an increase in OMMT loading (m(OMMT)),the PA6 content (m(PA6))required for the formation of the co-continuous structure decreases,and a smaller domain size was observed.The results verified that there exists a quantitative relation between m(OMMT)and m(PA6).The product of m(PA6)and m(OMMT),n,remains approximately 8 for this given system,and decreases with an increase in the DBP ad-sorption number of OMMT.It can offer useful reference to molding OMMT loading required on PA6 content.