纳米Al2O3和ZrO2颗粒填充不饱和聚酯聚合物砂浆的力学性能评价

S.P.B. Sousa , M.C.S. Ribeiro , P.R.O. Nóvoa , C.M. Pereira , A.J.M. Ferreira
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引用次数: 12

摘要

有几种方法可以改变复合材料的最终性能,但最常见的一种是在聚合物基体中添加不同类型的改性填料。在过去的几年里,纳米填料给复合材料带来了一些有趣的特性。到目前为止,关于纳米氧化物改性树脂粘结剂对聚合物砂浆力学性能的有效影响的研究还很少。在本研究中,通过纳米Al2O3和ZrO2颗粒的聚合物改性,开发了力学性能增强的不饱和聚酯基pm。制作了不含纳米颗粒和含纳米颗粒(2.5树脂wt.%)的样品,并通过弯曲、压缩和邵氏D硬度测试评估了它们的机械/物理性能。纳米氧化锆改性的PM力学性能优于未改性的PM;然而,为了进一步提高混合料的力学性能,需要进行更彻底的研究。
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Mechanical behaviour assessment of unsaturated polyester polymer mortars filled with nano-sized Al2O3 and ZrO2 particles

There are several ways to change the final properties of composite materials, but the most common one is by adding different types of modifier fillers to the polymeric matrix. Over the last years, nano fillers have brought some interesting properties to composites. Until now, only few works were published concerning the effective impacts of resin binder modification with nano oxides, on mechanical properties of polymer mortars (PM). In this study, unsaturated polyester based PMs with enhanced mechanical performance are developed through polymer modification with nano-sized Al2O3 and ZrO2 particles. Samples without and with nanoparticles (2.5 resin wt.%) were produced, and their mechanical/physical properties assessed by flexural, compressive and Shore D hardness tests. The PM modified with nano zirconia showed better mechanical performance compared to the unmodified PM; more thorough studies are nevertheless required in order to improve mix design formulations towards further enhancement of mechanical behaviour.

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