Synthesis of nano CuS and its effects on the light transmittance, thermal insulation, and mechanical properties of CuS/PVB composite film

IF 23.2 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2024-12-23 DOI:10.1007/s42114-024-01147-3

Mingzhi Liang, Hua Luo, Xuanlun Wang, Duo Pan

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Abstract

Nano copper sulfide (CuS) is a kind of good thermal insulation nanomaterial with low visible light absorption and high infrared light blocking rate. In this study, sodium sulfide (NaS), thiourea, copper chloride dihydrate (CuCl₂·2H₂O), and copper nitrate trihydrate (Cu(NO₃)₂·3H₂O) were used as sulfur source and copper source to prepare two kinds of nano CuS by hydrothermal method, and the surface of the nano CuS was treated with alkoxysilane (KH570). And then, with polyvinyl butyral (PVB) melt blending extrusion pelleting, PVB composite film was prepared, and the light transmittance, heat insulation performance, and mechanical properties were studied. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to characterize the nano CuS, and the results showed that the nano CuS exhibited two morphologies, flake and hollow, respectively. The PVB composite film doped with hollow CuS has higher visible light transmittance and lower thermal conductivity, which are 82.7% and 0.191 W/(m·K), respectively. Meanwhile, the mechanical properties of the film are significantly improved with the rate 0.3/100 for hollow CuS/PVB.

Graphical abstract

In this study, two forms of nano CuS were used as fillers and fused with PVB to form glass intermediate films, and the light transmittance, thermal insulation, and mechanical properties of the glass intermediate film were studied.

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纳米cu的合成及其对cu /PVB复合膜透光性、绝热性和力学性能的影响

纳米硫化铜（cu）是一种具有低可见光吸收率和高红外光阻隔率的良好隔热纳米材料。本研究以硫化钠（NaS）、硫脲、二水合氯化铜（CuCl2·2H2O）、三水合硝酸铜（Cu(NO3)2·3H2O）为硫源和铜源，采用水热法制备了两种纳米Cu，并用烷氧基硅烷（KH570）对纳米Cu进行表面处理。然后，以聚乙烯醇丁醛（PVB）熔融共混挤出制粒，制备了PVB复合薄膜，并对其透光性、隔热性能和力学性能进行了研究。采用透射电镜（TEM）和x射线衍射（XRD）对纳米CuS进行了表征，结果表明，纳米cu分别表现为片状和空心两种形态。掺空心CuS的PVB复合膜具有较高的可见光透过率和较低的导热系数，分别为82.7%和0.191 W/（m·K）。同时，中空CuS/PVB薄膜的力学性能得到了显著提高，提高率为0.3/100。本研究以两种形式的纳米cu作为填料，与PVB熔接形成玻璃中间膜，研究了玻璃中间膜的透光性、绝热性和力学性能。

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.