In this study, we investigated the effects of the filler content and ageing temperature on the water absorption and tensile properties of hydrophobic nano-calcium carbonate (NCC)/epoxy nanocomposites. The NCC content of the nanocomposites was varied from 0 to 5 wt%, while the ageing temperature was set at 28, 45, and 55°C in a distilled water bath. The nanocomposites exhibited the non-Fickian behaviour at all the NCC contents and ageing temperatures. In general, the water absorption of the nanocomposites increased after the addition of NCC. Meanwhile, the diffusivity of the nanocomposites decreased with an increase in the NCC content; however, this decrease became less significant at higher ageing temperatures. Although the addition of 1–3 wt% NCC significantly increased the water uptake capability of the nanocomposites, it resulted in an improvement in their tensile properties at high temperatures and prolonged ageing times.

在这项研究中，我们研究了填料含量和老化温度对疏水性纳米碳酸钙 (NCC)/环氧树脂纳米复合材料的吸水率和拉伸性能的影响。纳米复合材料的 NCC 含量从 0 到 5 wt% 不等，同时在蒸馏水浴中将老化温度设置为 28、45 和 55°C。纳米复合材料在所有 NCC 含量和老化温度下都表现出非菲克行为。一般来说，加入NCC后纳米复合材料的吸水率增加。同时，纳米复合材料的扩散系数随着NCC含量的增加而降低；然而，这种下降在较高的老化温度下变得不那么显着。尽管添加 1-3 wt% NCC 显着提高了纳米复合材料的吸水能力，