Results 11 to 20 of about 411,405 (289)

Single Polymer Composites Based on Polypropylene: Processing and Properties [PDF]

open access: yes, 2004
PhDIsotropic polymers lack sufficient strength and stiffness for many engineering applications. In order to improve these properties polymers can be filled with structural reinforcements such as glass or natural fibres.
Alcock, Benjamin
core   +4 more sources

Workability of Hybrid Fiber Reinforced Self-Compacting Concrete [PDF]

open access: yesEngineering and Technology Journal, 2018
The aim of this work is to evaluate the effect of adding different types of fibers on the fresh properties of the self-compacting concrete, SCC. The used types of fibers were steel (with volume ratios of 0.75, 1.0 and 1.25 %) and polypropylene fibers (0 ...
Tareq Al-Attar   +2 more
doaj   +1 more source

Effect of Adding Polypropylene Fibers in Met kaolin-Based Geopolymer Concrete [PDF]

open access: yesEngineering and Technology Journal, 2021
Geopolymer is a binder material that was created as a result of efforts to decrease Portland cement's negative environmental effects.  Geopolymer concrete shares certain properties with ordinary concrete, including brittleness.
Qais Frieh, Mushtaq Kamil
doaj   +1 more source

An Experimental Study of Shear Resistance for Multisize Polypropylene Fiber Concrete Beams

open access: yesInternational Journal of Concrete Structures and Materials, 2021
To study the influence of polypropylene fibers with different thicknesses on concrete beams, inclined section shear tests of polypropylene fiber concrete beams were carried out.
Xin Yang   +3 more
doaj   +1 more source

Mechanical and Thermogravimetric Properties of PP Based Thermoplastic Composites Reinforced with Cotton and Polyester Waste under Dry and Wet Conditions

open access: yesJournal of Natural Fibers, 2022
The textile waste-based composites are environmentally friendly and economical. This study reports polypropylene composites reinforced with cotton fibers extracted from waste textiles and polyester fibers generated in the industry.
Zunjarrao Kamble, Bijoya Kumar Behera
doaj   +1 more source

Injection moulded all-polypropylene composites composed of polypropylene fibre and polypropylene based thermoplastic elastomer [PDF]

open access: yes, 2012
All-polypropylene composites comprising of polypropylene based thermoplastic elastomer (TPE) matrix and homo-polypropylene (hPP) fibre reinforcement were prepared and processed by injection moulding.
Karger-Kocsis, József   +2 more
core   +1 more source

Temperature dependence of the interfacial shear strength in glass reinforced polypropylene and epoxy composites [PDF]

open access: yes, 2013
We have recently reported the development of a method which allows the measurement of IFSS over a wide temperature range [6,7]. In this paper we present data obtained using the microbond test in the temperature controlled environment of a thermo ...
Thomason, James, Yang, Liu
core   +3 more sources

Investigation on the effect of cellulose fiber surface characteristics on mechanical properties of cellulose fiber /polypropylene composite [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2015
In this research the effect of softwood cellulose fibers surface characteristics on mechanical properties of cellulose fibers / polypropylene composite (W.P.C) was studied.
shahram Badamchi   +3 more
doaj   +1 more source

Design of modified plastic surfaces for antimicrobial applications: Impact of ionizing radiation on the physical and mechanical properties of polypropylene [PDF]

open access: yes, 2013
Surface modification of polypropylene (PP) sheets was carried out by radiation induced graft polymer- ization of hydrophilic functional molecules such as N,N-dimethylacrylamide (DMA) and [2-methacry- loyloxy)ethyl] trimethylammonium chloride, which is a ...
RIQUET, Anne-Marie   +3 more
core   +1 more source

Evaluation of the Effect of Impregnation Methods on Flexural Strength of Polypropylene Fibers Reinforced Polymethyl Methacrylate Denture Base Material: An In Vitro Study [PDF]

open access: yesInternational Journal of Prosthodontics and Restorative Dentistry
Purpose: To evaluate and compare the efficacy of impregnation procedures on the flexural strength of polypropylene fibers reinforced polymethyl methacrylate (PMMA) denture base material. Materials and methods: Eighty PMMA samples of dimensions 65 mm × 10
Kavitha Chavadapu   +5 more
doaj   +1 more source

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