聚酰亚胺强化水泥砂浆

IF 1.7 4区工程技术 Q4 POLYMER SCIENCE

Journal of Polymer Engineering Pub Date : 2024-08-12 DOI:10.1515/polyeng-2024-0114

B. Poyraz, Mustafa Dayi

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引用次数: 0

摘要

本研究考察了硅烷改性聚酰亚胺聚合物（PIS）对水泥砂浆的影响。PIS 按特定比例添加，以取代水泥。研究结果表明，PIS 主要通过包裹未水化的水泥颗粒、填充孔隙或与 C-S-H 和 Ca(OH)2 发生反应并转移至 Si-O 振动，从而导致凝结时间延缓并加速 UPV。扫描电子显微镜结果表明，硅烷改性水泥具有良好的密实界面，在微观结构上没有形成大量团聚和空隙，从而提高了抗折和抗压强度性能。总之，硅烷改性聚酰亚胺作为一种外加剂或水泥替代品，可推荐用于建筑行业，以提高水泥砂浆的性能。

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Polyimide strengthened cement mortar

This study examined the effects of silane-modified polyimide polymer (PIS) on cement mortar. The PIS was added to replace cement in a specified ratio. Obtained results revealed that the PIS caused retardation on setting time, and accelerated UPV mostly by encapsulating unhydrated cement particles, filling pores, or reacting with C–S–H and Ca(OH)2 with shifting to Si–O vibrations. SEM results showed a good compact interface without forming considerable agglomeration and voids on the microstructure, and this improved flexural and compressive strength properties. In conclusion, silane-modified polyimide as an admixture or cement replacement can be recommended for construction industries to enhance the properties of cement mortar.

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来源期刊

Journal of Polymer Engineering 工程技术-高分子科学

CiteScore

3.20

自引率

5.00%

发文量

审稿时长

2.5 months

期刊介绍： Journal of Polymer Engineering publishes reviews, original basic and applied research contributions as well as recent technological developments in polymer engineering. Polymer engineering is a strongly interdisciplinary field and papers published by the journal may span areas such as polymer physics, polymer processing and engineering of polymer-based materials and their applications. The editors and the publisher are committed to high quality standards and rapid handling of the peer review and publication processes.