以聚乙烯醇(PVA)和添加聚乙二醇(PEG)为增塑剂的氧化物粉末混合物

IF 1.4 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Science of Sintering Pub Date : 2023-01-01 DOI:10.2298/sos220828005l

N. Labus, J. Krstić, Srdjan D. Matijašević, V. Pavlović

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引用次数: 0

摘要

粉末混合物由ZnO、Mn2O3 (MnCO3)和Fe2O3混合粉末组成，在压实过程中形成层状。介绍了聚乙烯醇(PVA)和聚乙烯醇与聚乙二醇(PEG)的组合作为增塑剂作为聚合物粘合剂，以改善氧化物混合物的压实性。它是通过形成氧化物混合物的悬浮液和改变聚合物溶液的浓度和组成来实现的。通过蒸发溶剂，得到了由聚合物结合的氧化颗粒组成的新材料。用衰减全反射傅立叶变换红外光谱(ATR-FTIR)、差热分析(DTA)和透射电子显微镜(TEM)对所获得的杂化材料进行了表征。将氧化物聚合物材料在200 MPa的压力下进行压实，并用膨胀计在高达550℃的温度范围内监测该压实材料在加热过程中的膨胀。结果表明，聚乙烯醇与聚乙二醇形成接枝聚合物，并与氧化颗粒表面发生特异性相互作用。

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Oxide powder mixture with poly-vinyl alcohol (PVA) and added polyethylene glycol (PEG) as plasticizer

Powder mixture consisted of ZnO, Mn2O3 (MnCO3) and Fe2O3 blended powders, was found laminating during compaction. Polyvinyl alcohol (PVA) and a combination of PVA with polyethylene glycol (PEG) added as a plasticizer, were introduced as polymer binders to improve the compaction of oxide mixtures. It has been done by forming a suspension of oxide mixture and varying the polymer solution concentration and composition. By evaporating the solvent, new materials were obtained, which consist of oxide particles bound via polymer. In such a manner obtained hybrid materials were characterized with attenuated total reflection Fourier transformed infrared (ATR-FTIR) spectroscopy, differential thermal analysis (DTA) and transmission electron microscopy (TEM). The oxide polymer material was compacted at 200 MPa and the expansion of this compact during heating was monitored in temperature range up to 550 ?C with dilatometer. It was found that PVA forms graft polymer with PEG and specific interaction with oxide particles surface was revealed.

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来源期刊

Science of Sintering 工程技术-材料科学：硅酸盐

CiteScore

2.50

自引率

46.70%

发文量

审稿时长

3.3 months

期刊介绍： Science of Sintering is a unique journal in the field of science and technology of sintering. Science of Sintering publishes papers on all aspects of theoretical and experimental studies, which can contribute to the better understanding of the behavior of powders and similar materials during consolidation processes. Emphasis is laid on those aspects of the science of materials that are concerned with the thermodynamics, kinetics and mechanism of sintering and related processes. In accordance with the significance of disperse materials for the sintering technology, papers dealing with the question of ultradisperse powders, tribochemical activation and catalysis are also published. Science of Sintering journal is published four times a year. Types of contribution: Original research papers, Review articles, Letters to Editor, Book reviews.