0.84Sb0.08Sm0.08O2和熱塑性聚氨酯(TPU)為原料,利用靜電紡絲法制備Sn0.84Sb0.08Sm0.08O2/TPU(Sn0.84Sb0.08Sm0.08O2添加質(zhì)量分?jǐn)?shù)為0%、3%、6%和9%)復(fù)合微納米纖維薄膜。結(jié)果表明:復(fù)合薄膜的微觀形貌均呈現(xiàn)纖維狀三維網(wǎng)絡(luò)結(jié)構(gòu);復(fù)合薄膜的抗拉伸強(qiáng)度和伸長率隨著添加量的增加均呈現(xiàn)先增強(qiáng)后減弱的趨勢,當(dāng)添加量為6%時,薄膜的抗拉伸強(qiáng)度為2.68 MPa,伸長率為573%,是TPU薄膜的1.5和8.3倍。Sn0.84Sb0.08Sm0.08O2的添加將復(fù)合薄膜的熱分解溫度和接觸角分別提升至303 ℃和120°。復(fù)合薄膜的紅外發(fā)射率隨Sn0.84Sb0.08Sm0.08O2添加量的增加而逐漸減小,當(dāng)添加量為9%時,樣品在3~5和8~14 μm波長區(qū)間的紅外發(fā)射率分別為0.576和0.652。本研究制備的復(fù)合薄膜具有良好的疏水性、熱穩(wěn)定性、柔韌性和紅外隱身性能,為輕質(zhì)紅外隱身材料的研究提供了實驗依據(jù),在紅外隱身領(lǐng)域具有一定的應(yīng)用前景。;The self-made hollow porous micro/nano-fiber structure Sn0.84Sb0.08Sm0.08O2 and thermoplastic polyurethane (TPU) were used as raw materials to prepare the Sn0.84Sb0.08Sm0.08O2/TPU (the addition content of Sn0.84Sb0.08Sm0.08O2 is 0wt%, 3wt%, 6wt%, and 9wt%) composite micro/nano-fiber films by electrostatic spinning method. Results show that the microstructures of composite films all present a fibrous 3D network structure. The tensile strength and elongation of the composite film are increased firstly and then decreased with increasing the addition content. When the addition amount is 6wt%, the tensile strength and elongation of the film are 2.68 MPa and 573%, which are 1.5 and 8.3 times higher than those of TPU film, respectively. The addition of Sn0.84Sb0.08Sm0.08O2 increases the thermal decomposition temperature and contact angle of the composite films to 303 °C and 120°, respectively. The infrared emissivity of the composite film is decreased with increasing the filler content. When the addition content is 9wt%, the infrared emissivity of the specimens at wavelength of 3–5 and 8–14 μm is 0.576 and 0.652, respectively. This composite film has good hydrophobicity, thermal stability, flexibility, and infrared stealth performance, providing experimental basis for the research of lightweight infrared stealth materials and showing certain application potential in the infrared stealth field."/>

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