Preparation and properties of EVA/MPE/DK-HNTs composites
9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO),γ-methacryloyloxypro pyltrimethoxysilane(KH-570)were used as raw materials to prepare DOPO-KH570,which was used for the surface modification of halloysite nanotubes to prepare DK-HNTs containing DOPO in end group.The chemical composition and structure of DK-HNTs were characterized by Fourier transform infrared spectroscopy(FTIR)and X-ray diffractometer(XRD).The ethylene-vinyl acetate/metallocene polyethylene/DK-HNTs composites were prepared via melt blending,and the effect of DK-HNTs addition on the properties of the composites were investigated.The results show that a low addition of DK-HNTs can achieve uniform dispersion in the composites.When the mass fraction of DK-HNTs is 5%(w),the tensile strength and elongation at break are 21.08 MPa and 735%,and the carbon residue of the composites is 4.20%(w).Moreover,the addition of DK-HNTs results in a slight decrease in the processing fluidity of the composites.
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