CAJ | 학술논문

以氯化镁（MgCl2.6H2O）、氯化铝（AlCl3.6H2O）、氯化锌（ZnCl2）、氯化铁（FeCl3.6H2O）和碳酸钠（Na2CO3）为原料,采用共沉淀法制备了二元MgAl-CO3LDHs、三元MgAlZn-CO3LDHs和四元MgAlZnFe-CO3LDHs无机纳米粉体,用聚乙二醇（PEG）对3种LDHs进行原位改性,采用熔融共混法制备了EVA/LDHs纳米复合材料,并对LDHs和纳米复合材料进行了透视电子显微镜（TEM）、扫描电子显微镜（SEM）、X射线衍射（XRD）、热重分析（TG）、力学性能、燃烧性能等测试。结果表明加入LDHs纳米粉体后,虽然对复合材料的力学性能有一定的影响,但对复合材料的阻燃效果有着明显的改善;而且随着LDHs元数的增加,复合材料的阻燃效果得到明显提高;当四元MgAlZnFe-CO3LDHs的添加量为15%时,复合材料即可自熄。
이록화미（MgCl2.6H2O）、록화려（AlCl3.6H2O）、록화자（ZnCl2）、록화철（FeCl3.6H2O）화탄산납（Na2CO3）위원료,채용공침정법제비료이원MgAl-CO3LDHs、삼원MgAlZn-CO3LDHs화사원MgAlZnFe-CO3LDHs무궤납미분체,용취을이순（PEG）대3충LDHs진행원위개성,채용용융공혼법제비료EVA/LDHs납미복합재료,병대LDHs화납미복합재료진행료투시전자현미경（TEM）、소묘전자현미경（SEM）、X사선연사（XRD）、열중분석（TG）、역학성능、연소성능등측시。결과표명가입LDHs납미분체후,수연대복합재료적역학성능유일정적영향,단대복합재료적조연효과유착명현적개선;이차수착LDHs원수적증가,복합재료적조연효과득도명현제고;당사원MgAlZnFe-CO3LDHs적첨가량위15%시,복합재료즉가자식。
MgA1-CO3 double hydroxide （LDHs）, MgA1Zn-CO3 LDHs and MgA1ZnFe-COa LDHs inorganic nanopowders were prepared by coprecipitation and the three LDHs were in-situ modified with PEG. Nano-composites were prepared along with EVA through melt blending and then were injection molded into samples. The mechanical properties and combustibility of the nano-composites were studied and XRD, TG analyses were carried out, the LDHs was also studied by TEM. The results show that. though the mechanical properties of the composites deteriorated to some degree, the flame resistance of the composites improved remarkably with the addition of LDHs powders. Meanwhile the falme resistance improved with more elements in the LDHs. The composites can self-extinguish when 15% MgA1ZnFe-CO3 LDHs were added.