Colloidal stability and rheology of jatropha oil-based waterborne polyurethane (JPU) dispersion

被引：35

作者：

Saalah, Sariah ^{[1
]}

Abdullah, Luqman Chuah ^{[2
,3
]}

Aung, Min Min ^{[3
,5
]}

Salleh, Mek Zah ^{[4
]}

Biak, Dayang Radiah Awang ^{[2
]}

Basri, Mahiran ^{[5
]}

Jusoh, Emiliana Rose ^{[3
]}

Mamat, Suhaini ^{[2
,6
]}

机构：

[1] Univ Malaysia Sabah, Fac Engn, Chem Engn Programme, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia

[2] Univ Putra Malaysia, Fac Engn, Dept Chem & Environm Engn, Serdang 43400, Selangor, Malaysia

[3] Univ Putra Malaysia, Inst Trop Forestry & Forest Prod, Higher Inst Ctr Excellence Wood & Trop Fibre HICo, Serdang 43400, Selangor, Malaysia

[4] Agensi Nuklear Malaysia, Radiat Proc Technol Div, Kajang 43000, Selangor, Malaysia

[5] Univ Putra Malaysia, Fac Sci & Technol, Dept Chem, Serdang 43400, Selangor, Malaysia

[6] Univ Kuala Lumpur, Malaysian Inst Chem & Bioengn Technol UniK MICET, Sch Engn Technol, Gajah 78000, Melaka, Malaysia

来源：

PROGRESS IN ORGANIC COATINGS | 2018年 / 125卷

关键词：

Waterborne polyurethane dispersion; Waterborne coatings; Colloidal stability; Rheology; Vegetable oil-based polyol; Jatropha oil; THERMAL-PROPERTIES; CHAIN EXTENSION; NEUTRALIZATION; BEHAVIOR; POLYMER; WOOD;

D O I：

10.1016/j.porgcoat.2018.09.018

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Jatropha oil-based waterborne polyurethane (JPU) dispersions were produced by polymerising the jatropha oil-based polyols (JOLs) with isophrene diisocyanate (IPDI) and dimethylol propionic acid (DMPA). The colloidal stability of the resulting JPU dispersions were studied by particle size analysis and rheology measurements. Inclusion of up to 5.4 wt.% of DMPA as an internal emulsifier produced a wide range of particle sizes from 84 nm to 825 nm. The dispersions have a solid content of 24.2-26.9 wt.% with a relatively low viscosity in the range 6.2-60.2 mPa s. The JPU dispersions exhibited the typical flow behaviour of the commercial polyurethane dispersions, ranging from almost Newtonian to a shear thinning fluid, and the experimental data correlated well with the Cross model. The samples were stable after 18 months of storage under room conditions.

引用

收藏

页码：348 / 357

页数：10

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