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Effect of nanoCaCO3 on crystallisation behaviour of LLDPE studied by SALS

机译：SALS研究了纳米CaCO3对LLDPE结晶行为的影响

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摘要

The effect of nanoCaCO3 on crystallisation behaviour of linear low density polyethylene (LLDPE) was investigated through time resolved small angle light scattering (SALS). The results indicate that the spherulite size of LLDPE is influenced in the presence of nanoCaCO3. In case the LLDPE and composites were crystallised at room temperature, the spherulite size of LLDPE composites is smaller than that of LLDPE. Also, the contents of the nanoCaCO3 (20.0-30.0 wt-%) could influence the structure of spherulite. The spherulite size of LLDPE is also influenced by the crystallisation temperature. When the crystallisation temperature is increased to 85°C, the spherulite size of LLDPE is remarkably affected by the contents of nanoCaCO3. At isothermal crystallisation temperature of 85°C, the crystallisation induction time of LLDPE is greatly shortened in the presence of nanoCaCO3. Furthermore, there is an orientation fluctuation emerging in the early stage of crystallisation in LLDPE containing 2.0 wt-% nanoCaCO3.
机译：通过时间分辨小角度光散射（SALS）研究了nanoCaCO3对线性低密度聚乙烯（LLDPE）结晶行为的影响。结果表明，在nanoCaCO3存在下，LLDPE的球晶尺寸受到影响。如果LLDPE和复合材料在室温下结晶，则LLDPE复合材料的球晶尺寸小于LLDPE。另外，纳米CaCO 3（20.0-30.0重量％）的含量可能影响球晶的结构。 LLDPE的球晶尺寸也受结晶温度的影响。当结晶温度升高到85℃时，LLDPE的球晶尺寸会受到nanoCaCO3含量的显着影响。在等温结晶温度为85°C时，存在nanoCaCO3时，LLDPE的结晶诱导时间大大缩短。此外，在包含2.0 wt％nanoCaCO3的LLDPE中，在结晶的早期阶段会出现取向波动。

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