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Study of Hybrid Nanoparticles Modified Epoxy Resin Used in Filament Winding Composite

机译：细丝缠绕复合材料复合纳米粒子改性环氧树脂的研究

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Hybrid nanoparticles modified bisphenol A type epoxy/acid anhydride resin system applicable for filament winding forming process was studied using elastic core-shell rubber (CSR) nanoparticles with a large particle size (nearly 100 nm) and rigid nano-SiO particles with a small particle size (about 16 nm). The formulation, process properties, mechanical properties, thermal properties and microstructure of modified resin and its wound composite were studied. The results suggested that at the content of 10 phr CSR and 2 phr nano-SiO , the resin system achieved optimum comprehensive performance. The viscosity of modified resin system was nearly 1000 mPa·s at 25 °C and service life was over 6 h. The resin tensile strength and modulus were 89 MPa and 3.5 GPa, while flexural strength and modulus reached 128 MPa and 3.2 GPa, respectively. The impact strength was 26.6 kJ·m , and the glass transition temperature (Tg) reached 145.9 °C. Modified epoxy resin enhanced the mechanical properties of carbon fiber reinforced wound composite. The tensile strength, tensile modulus and interlaminar shear strength were enhanced by 14.0%, 4.56% and 18.9%, respectively, compared with a composite based on unmodified resin. The above test results and scanning electron microscopy (SEM) analysis suggest that the hybrid nanoparticles modified resin system was suitable for carbon fiber wet filament winding products.
机译：研究了适用于长丝缠绕成型工艺的杂化纳米粒子改性双酚A型环氧/酸酐树脂体系，该研究系统使用了具有大粒径（接近100 nm）的弹性核壳橡胶（CSR）纳米颗粒和具有小粒径的刚性纳米SiO颗粒尺寸（约16 nm）。研究了改性树脂及其缠绕复合材料的配方，工艺性能，力学性能，热性能和微观结构。结果表明，在10 phr CSR和2 phr纳米SiO含量下，该树脂体系具有最佳的综合性能。改性树脂体系在25°C时的粘度接近1000 mPa·s，使用寿命超过6 h。树脂的拉伸强度和模量分别为89 MPa和3.5 GPa，而弯曲强度和模量分别为128 MPa和3.2 GPa。冲击强度为26.6kJ·m，玻璃化转变温度（Tg）达到145.9℃。改性环氧树脂增强了碳纤维增强缠绕复合材料的机械性能。与基于未改性树脂的复合材料相比，拉伸强度，拉伸模量和层间剪切强度分别提高了14.0％，4.56％和18.9％。以上测试结果和扫描电子显微镜（SEM）分析表明，杂化纳米粒子改性树脂体系适用于碳纤维湿丝缠绕产品。

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