Influence of Microcapsule Size and Shell Polarity on the Time-Dependent Viscosity of Geopolymer Paste

被引：36

作者：

Vinh Duy Cao ^{[1
,2
]}

Pilehvar, Shima ^{[1
,3
]}

Salas-Bringas, Carlos ^{[2
]}

Szczotok, Anna M. ^{[1
,4
]}

Do, Nu Bich Duyen ^{[5
]}

Hoa Thanh Le ^{[6
]}

Carmona, Manuel ^{[4
]}

Rodriguez, Juan F. ^{[4
]}

Kjoniksen, Anna-Lena ^{[1
]}

机构：

[1] Ostfold Univ Coll, Fac Engn, N-1757 Halden, Norway

[2] Norwegian Univ Life Sci, Fac Sci & Technol, N-1432 As, Norway

[3] Tech Univ Cartagena, Dept Mat Engn & Mfg, Murcia 30202, Spain

[4] Univ Castilla La Mancha, Dept Chem Engn, Ciudad Real 13004, Spain

[5] Univ Coll Southeast Norway, Fac Technol Nat Sci & Maritime Sci, N-3184 Borre, Norway

[6] Tech Univ Denmark, DTU Nanotech, Dept Micro & Nanotechnol, DK-2800 Lyngby, Denmark

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2018年 / 57卷 / 29期

关键词：

PHASE-CHANGE MATERIALS; PASSIVE BUILDING APPLICATIONS; PORTLAND-CEMENT CONCRETE; MECHANICAL-PROPERTIES; THERMAL-PROPERTIES; STRENGTH; WATER;

D O I：

10.1021/acs.iecr.8b01961

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effects of microencapsulated phase-change materials (MPCM) on the rheological properties of a geopolymer paste (GPP) were investigated. In order to quantify the time-dependent viscosity increase of the geopolymer paste containing MPCM (GPP-MPCM), a new rheological model was successfully developed. Three different MPCMs were compared in order to examine the effect of the hygroscopic nature of the microcapsule shells and the size distribution of the microcapsules. In addition, the effect of microcapsule concentration was investigated. It was found that microcapsules with polar functional groups on the shells affect the viscosity and the geopolymerization reaction of the geopolymer paste much more than microcapsules with hydrophobic shells. In addition, aggregated microcapsules influence the viscosities less than unaggregated micro capsules.

引用

页码：9457 / 9464

页数：8

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