A CRYSTALLINE POLYOLEFIN BLEND COMPRISING POLYHEDRAL OLIGOMERIC SILSESQUIOXANE NANOPARTICLES
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机译:包含多面体低聚倍半硅氧烷纳米颗粒的结晶聚烯烃共混物
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摘要
A crystalline polyolefin blend comprising dispersed polyhedral oligomeric silsesquioxane (POSS) nanoparticles has improved packing of chains, high draw-down ratios, as well as improved tensile and yield strength. The blend is made by melt blending the polyolefin with the POSS in the presence of a sorbitol nucleating agent and cooling the mixture so that the nucleating agent serves as a template for the in-situ self assembly of dispersed POSS nanoparticles and the formation of very small crystalline polyolefin sites.
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