Bonding Characteristics of Recycled Polyethylene Terephthalate (PET) Fibers Coated with Maleic Anhydride Grafted Polypropylene in Cement-Based Composites

Title
Bonding Characteristics of Recycled Polyethylene Terephthalate (PET) Fibers Coated with Maleic Anhydride Grafted Polypropylene in Cement-Based Composites
Author(s)
강주원원종필[원종필]이수진[이수진]박찬기[박찬기]
Keywords
PULLOUT BEHAVIOR; STEEL FIBERS; CONCRETE; MECHANISMS
Issue Date
201108
Publisher
WILEY-BLACKWELL
Citation
JOURNAL OF APPLIED POLYMER SCIENCE, v.121, no.4, pp.1908 - 1915
Abstract
In this study, we sought to enhance the bond performance between recycled polyethylene terephthalate( PET) fibers and cement-based composites using a hydrophilization treatment with hydrophilic maleic anhydride grafted polypropylene (mPP). The bond performance was evaluated with bone-shaped specimens after the hydrophilization treatment. The effects of the concentration of mPP in the solution in which the PET fibers were immersed (0, 5, 10, 15, and 20%) and the three types of shapes on the surface energy of the recycled PET fibers were evaluated. The pullout behavior, bond strength, and interfacial energy all increased with the concentration of mPP to 15% but decreased at 20%. This occurred because 15% mPP coated the recycled PET fiber thoroughly, whereas a 20% mPP coating resulted in partial cracks, which led to fractures on application of a pullout load. Of the fiber shapes, the embossed fibers demonstrated the best bond behavior. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121:1908-1915, 2011
URI
http://hdl.handle.net/YU.REPOSITORY/24753http://dx.doi.org/10.1002/app.33747
ISSN
0021-8995
Appears in Collections:
건축학부 > 건축학부 > Articles
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