Improvement of adhesion strength of polyurethane and alkyd coatings using sol-gel method nano-silane wood surface modification

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GHOLAMIYAN H.; TARMIAN A.; ABDULKHANI A.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: Iranian Journal of Wood and Paper Science Research Year:2017 | Volume:32 | Issue:3 (60) Page(s): 322-333

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Title

Improvement of adhesion strength of polyurethane and alkyd coatings using sol-gel method nano-silane wood surface modification

Author(s)

GHOLAMIYAN H. | TARMIAN A. | ABDULKHANI A. | Issue Writer Certificate

Keywords

Sol-gelQ1

alkyd and polyurethane coatingQ1

adhesionQ1

weatheringQ1

Abstract

In present study, the improvement of adhesion strength of polyurethane and alkyd coatings on the poplar wood (Populus nigra) by nano-silane coating using Sol-gel method for outdoor application is investigated. For this purpose, the boards with the dimensions of 15 × 10 × 2 mm were prepared according to EN 927-5. The surfaces of wood specimens were modified with Tetraethoxysilane (T) Sol-gel material and then, solvent-borne alkyd (AS) and solvent-borne polyurethane (PS) coatings were applied. The coated samples were placed outdoor on a platform facing south and with a slope of 36 for 8 months according to ISO 877 standard. In order to characterize the quality of the coatings, colorimetric, tensile adhesion (Pull off), scratch adhesion (Cross cut) and ATR-FTIR tests were performed before and after weathering. The ATR-FTIR analysis demonstrated that the wood surface was covered with silicon oxides (SiO2) attached to hydrocarbon chains. As a result of wood surface modification by Sol-gel, the color and adhesion strength of polyurethane and alkyd coatings were less affected by weathering. The highest tensile and scratch adhesions were found for the combined Sol-gel and polyurethane coatings.

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APA: Copy

GHOLAMIYAN, H., TARMIAN, A., & ABDULKHANI, A.. (2017). Improvement of adhesion strength of polyurethane and alkyd coatings using sol-gel method nano-silane wood surface modification. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 32(3 (60) ), 322-333. SID. https://sid.ir/paper/109949/en

Vancouver: Copy

GHOLAMIYAN H., TARMIAN A., ABDULKHANI A.. Improvement of adhesion strength of polyurethane and alkyd coatings using sol-gel method nano-silane wood surface modification. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2017;32(3 (60) ):322-333. Available from: https://sid.ir/paper/109949/en

IEEE: Copy

H. GHOLAMIYAN, A. TARMIAN, and A. ABDULKHANI, “Improvement of adhesion strength of polyurethane and alkyd coatings using sol-gel method nano-silane wood surface modification,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 32, no. 3 (60) , pp. 322–333, 2017, [Online]. Available: https://sid.ir/paper/109949/en

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