Publikation:

Analysis of the migration behavior and performance impact of modified starch in gypsum plasterboard

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Datum

2025

Autor:innen

Zhuang, Haidong
Guo, Zhenbang
Zhang, Bin
Leng, Difei
Wang, Fazhou
Chen, Hongxia
Zhang, Yufei
Qu, Zhengyao

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https://doi.org/10.1016/j.conbuildmat.2025.140031
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Angaben zur Forschungsförderung

National Natural Science Foundation of China: 52130208

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Open Access-Veröffentlichung

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Chemie: Publikationen
Core Facility der Universität Konstanz

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Construction and Building Materials. Elsevier. 2025, 463, 140031. ISSN 0950-0618. eISSN 1879-0526. Verfügbar unter: doi: 10.1016/j.conbuildmat.2025.140031

Zusammenfassung

This study seeks to enhance the performance of gypsum plasterboard by optimizing the molecular properties and dosage of modified starch to meet the stringent requirements of modern construction, such as bonding strength, durability, and water resistance. To achieve this objective, various modified starches were synthesized and systematically analyzed for their impact on the performance of gypsum plasterboard, including fluidity, bonding strength, and overall mechanical properties. Additionally, the migration behavior of starch within the gypsum plasterboard was investigated to elucidate its mechanism of action. The findings revealed that increasing the dosage of modified starch significantly reduced the fluidity of the gypsum slurry and prolonged the setting time. However, an appropriate dosage (0.27 %) could significantly enhance bonding performance. The results also indicated that variations in the molecular weight of modified starch influenced fluidity, setting time, and flexural strength, with moderate molecular weights (e.g., B2 to D4) yielding the best performance. Furthermore, modified starch demonstrated an inward-to-outward migration pattern during the drying process, which contributed to improved bonding strength and structural integrity of the gypsum plasterboard.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
540 Chemie

Schlagwörter

Gypsum plasterboard, Modified starch, Starch molecular weight, Mechanical properties, Starch migration

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ISO 690ZHUANG, Haidong, Zhenbang GUO, Bin ZHANG, Difei LENG, Cristina RUIZ AGUDO, Fazhou WANG, Hongxia CHEN, Yufei ZHANG, Zhengyao QU, 2025. Analysis of the migration behavior and performance impact of modified starch in gypsum plasterboard. In: Construction and Building Materials. Elsevier. 2025, 463, 140031. ISSN 0950-0618. eISSN 1879-0526. Verfügbar unter: doi: 10.1016/j.conbuildmat.2025.140031
BibTex
@article{Zhuang2025-02Analy-72311,
  title={Analysis of the migration behavior and performance impact of modified starch in gypsum plasterboard},
  year={2025},
  doi={10.1016/j.conbuildmat.2025.140031},
  volume={463},
  issn={0950-0618},
  journal={Construction and Building Materials},
  author={Zhuang, Haidong and Guo, Zhenbang and Zhang, Bin and Leng, Difei and Ruiz Agudo, Cristina and Wang, Fazhou and Chen, Hongxia and Zhang, Yufei and Qu, Zhengyao},
  note={Article Number: 140031}
}
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