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Fractographic characterization of isotactic polypropylene fibers
Microscopy Research and Technique, 2020AbstractIn this article we present an opto‐thermo‐mechanical characterization of isotactic polypropylene monofilament during failure by fracture. The digital photoelasticity, the two‐beam Pluta polarising interference microscope and the computed tomography are used to provide quantitative data and visual models of the fracture regions of isotactic ...
Taha Z. N. Sokkar +3 more
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Failure of polypropylene fibers
Fibre Chemistry, 1984A quantitative definition of the highly elastic deformation built up in extension of polypropylene fiber has been proposed.
V. D. Fikhman +2 more
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Effects of reinforcing fibers on the crystallization of polypropylene
Polymer Engineering & Science, 2000AbstractThe effects of the incorporation of different types of fibers on the crystallization kinetics and thermodynamics of isotactic polypropylene (iPP) are investigated. The study is mainly performed by thermal analysis, both in isothermal and constant cooling rate conditions, utilizing differential scanning calorimetry (DSC).
Lopez Manchado M. A. +3 more
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1999
Special types of polypropylene (PP) fibers were developed in order to widen their application. The special fibers may be ranged into the following main groups: • multicomponent fibers containing at least two different polymers; • fibers with changing cross-section geometry (profiled and partly filled); • bioactive fibers.
Martin Jambrich, Anton Marcinčin
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Special types of polypropylene (PP) fibers were developed in order to widen their application. The special fibers may be ranged into the following main groups: • multicomponent fibers containing at least two different polymers; • fibers with changing cross-section geometry (profiled and partly filled); • bioactive fibers.
Martin Jambrich, Anton Marcinčin
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Bagasse Fiber-Polypropylene Based Composites
Journal of Thermoplastic Composite Materials, 1999Processing and properties of bagasse fiber-polypropylene composites are reported. Four different chemical treatments of the vegetal fibers were performed in order to improve interface adhesion with the thermoplastic matrix: namely isocyanate, acrylic acid, mercerization, and washing with alkaline solution were applied.
Vazquez A. +2 more
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Journal of Nanoscience and Nanotechnology, 2006
A simple method for the preparation of hybrid luminescence and rodlike CdS nanoclusters/poly (propylene-grafted-(2-methylacrylic acid 3-(bis-carboxymethyl amino-2-hydroxy-propyl ester) (GMA-IDA fibers, by plasma induced method following chemical deposition method, is presented in this study.
Chun-Hao, Tseng +2 more
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A simple method for the preparation of hybrid luminescence and rodlike CdS nanoclusters/poly (propylene-grafted-(2-methylacrylic acid 3-(bis-carboxymethyl amino-2-hydroxy-propyl ester) (GMA-IDA fibers, by plasma induced method following chemical deposition method, is presented in this study.
Chun-Hao, Tseng +2 more
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Polymorphism in polypropylene fibers
Journal of Applied Polymer Science, 2003AbstractThe structure of polypropylene fibers formed by different spinning conditions was studied. The investigations were carried out using wide‐angle X‐ray scattering (WAXS) and small‐angle X‐ray scattering (SAXS) methods. It was stated that in noncolored fibers the mesophase and the monoclinic α forms were formed.
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The Role of Polypropylene Fibers and Polypropylene Geotextile in Erosion Control
IACGE 2013, 2013The geotextile industry research and development is growing at a fast rate and new products of variable specifications are now available for earthworks and design engineers. The nature of the material as a filter and the engineering properties of the materials used made it possible to explore a wide range of application.
Muawia Dafalla, Ali Obaid
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The Coloration of Polypropylene Fibers
1987Polypropylene, as produced, does not possess properties normally attributed to a fiber-forming polymer. Despite a relatively low melting point, it is not stable below melt temperatures and will degrade in UV light at room temperature, unless stabilizers are added.
Marvin Wishman +2 more
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Time‐Dependent Properties of Isotactic Polypropylene Fibers
Annals of the New York Academy of Sciences, 1999Many physical properties of polymers exhibit appreciable changes with the time. Some of these changes are due to the phenomenon reported as “physical aging.” Physical aging of polymers, depending only on time, occurs in amorphous polymers stored at a temperature below the glass transition temperature (Tg): when the system is rapidly cooled through Tg ...
G. BARRA +3 more
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