Results 41 to 50 of about 1,235 (204)

Performance of natural curaua fiber-reinforced polyester composites under 7.62 mm bullet impact as a stand-alone ballistic armor

open access: yesJournal of Materials Research and Technology, 2017
A multilayered armor system (MAS) is intended to personal protection against high kinetic energy ammunition. MAS layers are composed of materials such as a front ceramic and a back composite that must show both high impact resistance and low weight ...
Fábio de Oliveira Braga   +3 more
doaj   +1 more source

On the path to a new generation of cement-based composites through the use of lignocellulosic micro/nanofibers [PDF]

open access: yes, 2019
Due to its high biocompatibility, bio-degradability, and low cost, cellulose finds application in disparate areas of research. Here we focus our attention on the potential applications of cellulose nanofiber in cement-basedmaterials for the building ...
Chamorro Trenado, Miquel Ángel   +7 more
core   +2 more sources

Ballistic behavior of a hybrid composite reinforced with curaua and aramid fabric subjected to ultraviolet radiation

open access: yesJournal of Materials Research and Technology, 2018
Mobile ballistic armors, particularly those intended for personal protection, are also designed with lowest possible weight. Composite materials are the best choice for this kind of application, especially laminated composites reinforced with high ...
Anderson Oliveira da Silva   +4 more
doaj   +1 more source

Weibull analysis for the diameter dependence of the elastic modulus of curaua fibers [PDF]

open access: yesMatéria (Rio de Janeiro), 2013
The curaua fiber is one of the strongest lignocellulosic fibers and is currently being considered as reinforcement of polymer composites for industrial applications such as automobile interior components and bicycle helmets. The tensile strength of the curaua fiber was found to display an inverse variation with its corresponding equivalent diameter ...
Monteiro, S.N.   +2 more
openaire   +3 more sources

Caracterização térmica e mecânica de compósitos de poliuretano com fibras de Curauá Thermal and mechanical caracterization of polyuretane composites with Curaua fibers

open access: yesPolímeros, 2004
O presente trabalho tem por objetivo estudar o comportamento térmico e o mecanismo de decomposição térmica de compósitos de poliuretano nas proporções de: 5, 10 e 20%(p/p) de fibra de curauá.
Cheila G. Mothé, Carla R. de Araujo
doaj   +1 more source

Tensile behavior analysis combined with digital image correlation and mechanical and thermal properties of microfibrillated cellulose fiber/ polylactic acid composites

open access: yesPolymer Testing, 2022
Microfibrillated cellulose (MFC) employed as reinforcement of polymeric matrices can increase elastic modulus, stiffness and strength of a composite. In this work, the assessment of the mechanical, thermal properties and tensile tests assisted by digital
Luiz C.C. Jesus   +7 more
doaj   +1 more source

Potential of Natural Fibers in Composites for Ballistic Applications – A Review

open access: yesJournal of Natural Fibers, 2022
In this paper, a review of natural fibers composites used in protective armors for ballistic applications like bulletproof vests is presented. It seeks to compile the results and establish natural fiber composites as an alternative to absolute synthetic ...
Suhas Yeshwant Nayak   +6 more
doaj   +1 more source

Ballistic properties of curaua-aramid laminated hybrid composites for military helmet

open access: yesJournal of Materials Research and Technology, 2023
The present research aimed to develop laminated hybrid-composite with aramid woven fabric and curaua non-woven mat, to evaluate the possibility of using as military ballistic helmets.
Natalin Michele Meliande   +6 more
doaj   +1 more source

Pyrolysis Decomposition Kinetics of Microcrystalline Cellulose and Curaua Fiber: Insight of Reaction Models by Using Vyazovkin Method

open access: yesJournal of Natural Fibers, 2022
This paper provides a full understanding of the pyrolysis mechanism of plant biomass (curaua) and cellulose – two materials that involve complex degradation stages.
Heitor Ornaghi   +3 more
doaj   +1 more source

On the Use of Gallic Acid as a Potential Natural Antioxidant and Ultraviolet Light Stabilizer in Cast-Extruded Bio-Based High-Density Polyethylene Films [PDF]

open access: yes, 2019
This study originally explores the use of gallic acid (GA) as a natural additive in bio-based high-density polyethylene (bio-HDPE) formulations. Thus, bio-HDPE was first melt-compounded with two different loadings of GA, namely 0.3 and 0.8 parts per ...
Balart, Rafael   +5 more
core   +2 more sources

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