• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

聚合物分散剂对硅酸三钙溶解速率及水化硅酸钙和氢氧化钙成核的影响。

Influence of Polymeric Dispersants on the Dissolution Rate of Tricalcium Silicate and the Nucleation of Calcium-Silicate-Hydrate and Portlandite.

作者信息

Vohburger Andreas, Collin Marie, Rindle Olivia, Gädt Torben

机构信息

Chair for the Chemistry of Construction Materials, TUM School of Natural Sciences, Technical University of Munich, Garching, Germany.

出版信息

Chemistry. 2025 May 14;31(27):e202500207. doi: 10.1002/chem.202500207. Epub 2025 Apr 25.

DOI:10.1002/chem.202500207
PMID:40192589
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12080329/
Abstract

Polycarboxylate ether (PCE) and polyphosphate ether (PPE) dispersants (also known as superplasticizers) are indispensable components of modern concrete mix designs. They reduce the yield stress of cement suspensions and thereby facilitate the reduction of the water-to-cement ratio. However, PCEs and PPEs also cause retardation of the cement hydration as a secondary effect, which causes delayed concrete strength development. It is proposed that the retardation is caused by the polymer influence on the tricalcium silicate dissolution rate and the crystallization of the hydration products (e.g., calcium hydroxide Ca(OH) and calcium-silicate-hydrate or C-S-H). This study examines the effect of four different polymeric superplasticizers with carboxylate and phosphate groups on the reaction kinetics of the pure cement phase tricalcium silicate (in cement shorthand ). Our results confirm the strong retarding effect of the polymers on the hydration reaction of the paste. Based on model experiments, we studied the polymer influence on the dissolution of and the nucleation of the hydration products. We observed no dissolution-inhibiting effect of the polymers at the chosen concentrations and undersaturation. However, such an inhibiting effect may occur at solution conditions closer to the saturation limit. Titrimetric analyses indicate that all polymers suppress the nucleation of portlandite and C-S-H, with a higher polymer charge density leading to a more pronounced inhibition.

摘要

聚羧酸醚（PCE）和聚磷酸醚（PPE）分散剂（也称为高效减水剂）是现代混凝土配合比设计中不可或缺的成分。它们降低了水泥悬浮液的屈服应力，从而有助于降低水灰比。然而，PCE和PPE作为次要效应也会导致水泥水化延缓，这会导致混凝土强度发展延迟。有人提出，这种延缓是由聚合物对硅酸三钙溶解速率和水化产物（如氢氧化钙Ca(OH)₂和水化硅酸钙或C-S-H）结晶的影响引起的。本研究考察了四种不同的含羧基和磷酸基团的聚合物高效减水剂对纯水泥相硅酸三钙（水泥简写为C₃S）反应动力学的影响。我们的结果证实了聚合物对C₃S浆体水化反应有很强的延缓作用。基于模型实验，我们研究了聚合物对C₃S溶解和水化产物成核的影响。在选定的浓度和不饱和条件下，我们未观察到聚合物对C₃S溶解的抑制作用。然而，在更接近饱和极限的溶液条件下可能会出现这种抑制作用。滴定分析表明，所有聚合物都抑制了氢氧化钙和C-S-H 的成核，聚合物电荷密度越高，抑制作用越明显。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/a1daf7f985aa/CHEM-31-e202500207-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/359e2b452441/CHEM-31-e202500207-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/bff59034df83/CHEM-31-e202500207-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/89d29bcabff3/CHEM-31-e202500207-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/30ea47189877/CHEM-31-e202500207-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/76e5c7323862/CHEM-31-e202500207-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/8d0bdd84cde3/CHEM-31-e202500207-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/2b444dd10887/CHEM-31-e202500207-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/172f807101d4/CHEM-31-e202500207-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/cf3a46ed8e12/CHEM-31-e202500207-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/d544bbdebbcb/CHEM-31-e202500207-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/deaaf616d7b8/CHEM-31-e202500207-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/a1daf7f985aa/CHEM-31-e202500207-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/359e2b452441/CHEM-31-e202500207-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/bff59034df83/CHEM-31-e202500207-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/89d29bcabff3/CHEM-31-e202500207-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/30ea47189877/CHEM-31-e202500207-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/76e5c7323862/CHEM-31-e202500207-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/8d0bdd84cde3/CHEM-31-e202500207-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/2b444dd10887/CHEM-31-e202500207-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/172f807101d4/CHEM-31-e202500207-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/cf3a46ed8e12/CHEM-31-e202500207-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/d544bbdebbcb/CHEM-31-e202500207-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/deaaf616d7b8/CHEM-31-e202500207-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0219/12080329/a1daf7f985aa/CHEM-31-e202500207-g008.jpg

相似文献

1
Influence of Polymeric Dispersants on the Dissolution Rate of Tricalcium Silicate and the Nucleation of Calcium-Silicate-Hydrate and Portlandite.聚合物分散剂对硅酸三钙溶解速率及水化硅酸钙和氢氧化钙成核的影响。
Chemistry. 2025 May 14;31(27):e202500207. doi: 10.1002/chem.202500207. Epub 2025 Apr 25.
2
The microstructure and surface morphology of radiopaque tricalcium silicate cement exposed to different curing conditions.不同固化条件下放射显影硅酸三钙水泥的微观结构和表面形貌。
Dent Mater. 2012 May;28(5):584-95. doi: 10.1016/j.dental.2012.02.006. Epub 2012 Mar 11.
3
Characterization and hydration kinetics of tricalcium silicate cement for use as a dental biomaterial.用于牙科生物材料的硅酸三钙水泥的特性和水合动力学。
Dent Mater. 2011 Aug;27(8):836-44. doi: 10.1016/j.dental.2011.04.010. Epub 2011 May 19.
4
Investigation of the hydration and bioactivity of radiopacified tricalcium silicate cement, Biodentine and MTA Angelus.研究放射显影硅酸三钙水泥、Biodentine 和 MTA Angelus 的水合和生物活性。
Dent Mater. 2013 May;29(5):580-93. doi: 10.1016/j.dental.2013.03.007. Epub 2013 Mar 26.
5
Formation of the C-S-H Layer during early hydration of tricalcium silicate grains with different sizes.不同尺寸硅酸三钙颗粒早期水化过程中C-S-H层的形成。
J Phys Chem B. 2006 Jan 12;110(1):270-5. doi: 10.1021/jp0547212.
6
Multiscale understanding of tricalcium silicate hydration reactions.对硅酸三钙水化反应的多尺度理解
Sci Rep. 2018 Jun 4;8(1):8544. doi: 10.1038/s41598-018-26943-y.
7
Characterization of the Bonds Developed between Calcium Silicate Hydrate and Polycarboxylate-Based Superplasticizers with Silyl Functionalities.硅烷官能化聚羧酸系超塑化剂与硅酸钙水化物之间形成的键的特性。
Langmuir. 2017 Apr 11;33(14):3404-3412. doi: 10.1021/acs.langmuir.6b04368. Epub 2017 Mar 30.
8
A contribution to the characterization of the silicate-water interface - Part II: Atom Probe Tomography of tricalcium silicate.对硅酸盐-水界面特性的贡献 - 第二部分：硅酸三钙的原子探针断层扫描
Micron. 2018 Nov;114:72-77. doi: 10.1016/j.micron.2018.06.001. Epub 2018 Jun 2.
9
Impacts of Space Restriction on the Microstructure of Calcium Silicate Hydrate.空间限制对硅酸钙水合物微观结构的影响
Materials (Basel). 2021 Jun 30;14(13):3645. doi: 10.3390/ma14133645.
10
The in vivo dissolution of tricalcium silicate bone cement.体内硅酸三钙骨水泥的溶解。
J Biomed Mater Res A. 2021 Dec;109(12):2527-2535. doi: 10.1002/jbm.a.37247. Epub 2021 Jun 29.

本文引用的文献

1
Poly(carboxylated ether)s as Cement Additives: The Effect of the Addition Method on Hydration Kinetics.聚（羧化醚）作为水泥添加剂：添加方法对水化动力学的影响。
Materials (Basel). 2024 Oct 31;17(21):5343. doi: 10.3390/ma17215343.
2
A non-classical view on calcium oxalate precipitation and the role of citrate.关于草酸钙沉淀和柠檬酸盐作用的非经典观点。
Nat Commun. 2017 Oct 3;8(1):768. doi: 10.1038/s41467-017-00756-5.
3
Pre-nucleation clusters as solute precursors in crystallisation.成核前簇作为结晶中的溶质前体。
Chem Soc Rev. 2014 Apr 7;43(7):2348-71. doi: 10.1039/c3cs60451a. Epub 2014 Jan 23.
4
Dissolution and carbonation of Portlandite [Ca(OH)2] single crystals.单水氢氧化钙（Portlandite [Ca(OH)2]）晶体的溶解和碳化。
Environ Sci Technol. 2013 Oct 1;47(19):11342-9. doi: 10.1021/es402061c. Epub 2013 Sep 11.
5
Calcium mediated polyelectrolyte adsorption on like-charged surfaces.钙离子介导的聚电解质在带相同电荷表面上的吸附。
Langmuir. 2011 Nov 15;27(22):13572-81. doi: 10.1021/la2030846. Epub 2011 Oct 12.
6
Conformation of adsorbed comb copolymer dispersants.吸附梳型共聚物分散剂的构象
Langmuir. 2009 Jan 20;25(2):845-55. doi: 10.1021/la801410e.
7
Modeling and comparison of dissolution profiles.溶出曲线的建模与比较
Eur J Pharm Sci. 2001 May;13(2):123-33. doi: 10.1016/s0928-0987(01)00095-1.