Study on the Fracture Toughness of Polypropylene–Basalt Fiber-Reinforced Concrete
International Journal of Concrete Structures and Materials, 2021 To study the hybrid effects of polypropylene fiber and basalt fiber on the fracture toughness of concrete, 13 groups of notched concrete beam specimens with different fiber contents and mass ratios were prepared for the three-point bending test. Based on
N. Liang +6 more
semanticscholar +1 more source
Quasi-Living Polymerization of Propene with an Isotactic-Specific Zirconocene Catalyst
Molecules, 2017 Propene polymerization with isotactic (iso)-specific C2-symmetric rac-Me2Si(2-Me-Benz(e)-Ind)2ZrCl2 (1) and rac-Me2Si(2-Me-4-Ph-1-Ind)2ZrCl2 (2) were conducted under various conditions for achieving iso-specific living polymerization of propene.
Kei Nishii +2 more
doaj +1 more source
Modification of polypropylene mesh by titanium compound: An in Vivo and in Vitro study
Frontiers in Materials, 2023 Objective: Previous basic studies on the use of titanized polypropylene meshes in abdominal external hernia repair are not only limited, but also highly controversial.
Yelei Xiao +5 more
doaj +1 more source
Characteristics of the fibroplasia and collagen expression in the abdominal wall after implant of the polypropylene mesh and polypropylene/polyglecaprone mesh in rats [PDF]
Acta Cirúrgica Brasileira, 2016 PURPOSE: To compare fibroplasia and the resistance of the abdominal wall when polypropylene meshes and polypropylene/poliglecaprone are used. METHODS: Seventy-seven male Wistar rats were divided into three groups: Control Group (for resistance); Group E
Maria de Lourdes Pessole Biondo-Simões +8 more
doaj +2 more sources
Polypropylene Mesh Implant and A-prf Membrane for Reconstruction of the Traumatic Defects of the Lateral and Back Wall of the Maxillary Sinus [PDF]
, 2017 . Background: The aim of this study was to investigate the possible use of Polypropylene mesh implant and A-PRF membrane for covering the defects of the lateral and back wall of the maxillary sinus after its traumatic damages.Materials: non-resorbable ...
Efisko, N. (Natalia) +3 more
core +2 more sources
Development and characterisation of injection moulded, all-polypropylene composites [PDF]
, 2012 In this work, all-polypropylene composites (all-PP composites) were manufactured by injection moulding. Prior to injection moulding, pre-impregnated pellets were prepared by a three-step process (filament winding, compression moulding and pelletizing).
Bárány, Tamás +3 more
core +2 more sources
Advances in Mechanical Engineering, 2016 Natural fiber composites composed of polypropylene, maleic anhydride-graft-polypropylene, and hemp woody core fiber were produced by two-roll mill mixing. The hemp woody core fiber was treated by alkaline.
Chakaphan Ngaowthong +2 more
doaj +1 more source
Materials, 2020 High-performance concrete has low tensile strength and brittle failure. In order to improve these properties of unreinforced concrete, the effects of adding recycled polypropylene fibers on the mechanical properties of concrete were investigated.
M. Małek +3 more
semanticscholar +1 more source
Polypropylene/Maleic Anhydride Grafted Polypropylene (MAgPP)/Coconut Fiber Composites
Advances in Mechanical Engineering, 2016 Natural fiber composites consisted of homopolymer polypropylene, polyoxymethylene, maleic anhydride–grafted polypropylene, and coconut fibers were produced by co-rotating twin screw extruder.
Laongdaw Techawinyutham +2 more
doaj +1 more source
Studying the behavior of geopolymer concretes under repeated loadings
Journal of Engineering and Applied Science, 2021 This article investigates utilization of polypropylene microfibers as reinforcement in geopolymer concrete to enhance the ductility characteristics since the geopolymer concrete is considered a brittle material.
Osamah M. G. Al-Kerttani, Ammar Mutar
doaj +1 more source