Development of quasi-unidirectional fabrics with hemp fiber: A competitive reinforcement for composite materials

2020 ◽  
pp. 002199832095423 ◽  
Author(s):  
Anne-Clémence Corbin ◽  
Benjamin Sala ◽  
Damien Soulat ◽  
Manuela Ferreira ◽  
Ahmad-Rashed Labanieh ◽  
...  
Keyword(s):  
Composite Materials ◽  
Tensile Properties ◽  
Mechanical Testing ◽  
Manufacturing Process ◽  
Laminated Composites ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Hemp Fiber ◽  
Fiber Alignment ◽  
Hemp Fabric

This study focuses on the development and mechanical testing of a quasi-unidirectional woven hemp fabric for composite applications. The fabric is designed to combine the advantages of easy handling, impregnability by resin and fiber alignment. In this sense, low twisted rovings, low crimping characteristics and a high roving density in the main direction were used. The results show that the manufacturing process proposed for this highly unbalanced woven fabric is less aggressive than that for a balanced pattern, and the effective tensile properties of the fibers are preserved. This innovative hemp fabric is also used to manufacture unidirectional and cross-ply laminated composites. The results indicate competitive properties relative to those of commercial flax-based reinforcements with rigidities similar to those of composites made with quasi-unidirectional woven fabrics, non-crimp fabrics and tapes.

Manufacturing Process and Property Evaluation of Functional Composite Yarn-Dyed Woven Fabrics Made from Bamboo Charcoal/Stainless Steel and TPU

2008 ◽  
Vol 55-57 ◽  
pp. 413-416 ◽  
Author(s):  
C.I. Huang ◽  
C.I. Su ◽  
Ching Wen Lou ◽  
Wen Hao Hsing ◽  
Jia Horng Lin
Keyword(s):  
Stainless Steel ◽  
Manufacturing Process ◽  
Far Infrared ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Weft Yarn ◽  
Bamboo Charcoal ◽  
Functional Composite ◽  
Composite Yarn ◽  
Composite Fabrics

Recently, development of technology increases human life quality and gradually raises the value of health protection in human’s concept. Bamboo has multi-functional including far infrared radiation, deodorization and anion generation. Therefore, bamboo charcoal has been widely used in textile industry. Moreover, development of technology also increased the electromagnetic hazard in human’s daily life. This study aims to develop a manufacturing process of functional composite yarn-dyed woven fabrics. In the manufacturing process, the materials included pure cotton yarn, stainless steel fiber(called metallic yarn) and viscose rayon yarn containing bamboo charcoal (called bamboo charcoal yarn) were used for making the bamboo charcoal/stainless steel composite woven fabric. The composite woven fabrics were woven by using same warp yarn and two kinds of weft yarn that contained bamboo charcoal and stainless steel. The composite fabrics had two different structures. Those fabrics were changed the order of bamboo charcoal yarn and metallic yarn. The ratios of weft yarn were 1 end of bamboo charcoal yarn to 1 end of metallic yarn and 3 ends of bamboo charcoal yarn to 1 end of metallic yarn. Furthermore, the fabrication of composite fabrics that included plain, 2/2 twill and dobby were changed. The composite woven fabrics were finished and laminated by TPU film to enhance the waterproof and vapor permeable functions. The laminated composite fabrics were evaluated by far-infrared coefficient, anion generation rate, water vapor permeability, water resistance, surface electric resistance and electromagnetic shelter property to obtained optimal manufacturing process.

scholarly journals Mechanisms of Mode I Interlaminar Fracture of Glass Woven Fabric Composites

2000 ◽  
Vol 9 (3) ◽  
pp. 096369350000900 ◽  
Author(s):  
M. Kotaki ◽  
T. Kuriyama ◽  
H. Hamada ◽  
Z. Maekawa ◽  
I. Narisawa
Keyword(s):  
Fracture Toughness ◽  
Laminated Composites ◽  
Damage Zone ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Mode I ◽  
Interlaminar Fracture ◽  
Woven Fabric Composites ◽  
Fabric Composites ◽  
Silane Concentration

Mode I interlaminar fracture behaviours were investigated on the laminated composites reinforced with plain glass woven fabrics which were treated with different silane concentrations. The low silane concentration specimen indicated higher fracture toughness, compared to the high silane concentration specimen. This is due to the occurrence of the micro crack in the fibre strands. In the low silane concentration specimen, larger damage zone due to the micro crack was formed ahead of the crack tip.

Evaluation of liquid moisture management properties on hemp woven fabrics treated with liquid ammonia

2016 ◽  
Vol 87 (14) ◽  
pp. 1752-1764 ◽  
Author(s):  
Jung Jin Lee ◽  
Dong Sun Ji
Keyword(s):  
Liquid Ammonia ◽  
Woven Fabrics ◽  
Test Method ◽  
Cellulose I ◽  
Hemp Fiber ◽  
Moisture Management ◽  
Management Capability ◽  
Rate Maximum ◽  
Electron Microscopy Analysis ◽  
Hemp Fabric

The effects of yarn number and liquid ammonia (L/A) treatment on the liquid moisture management properties (such as wetting time, absorption rate, maximum wetted radius, spreading speed, accumulative one-way transport capability, and overall moisture management capability) of hemp woven fabrics were evaluated by using a moisture management tester on the basis of AATCC test method 195-2011. As a result of the L/A treatment, the crystal structure of hemp fiber was changed from cellulose I into a mixture of cellulose III and cellulose I and its crystallinity was slightly decreased from 66.1% to 57.4%. From scanning electron microscopy analysis, hemp fabric looked swollen and bulked after L/A treatment. The liquid moisture management properties of the L/A-treated hemp woven fabrics showed much better results compared with the untreated ones. Overall moisture management capacity values increased as the yarn number increased and the values of the L/A-treated hemp samples are higher than those of untreated ones. This research could be valuable for the improvement of liquid moisture management properties of hemp woven fabrics.

scholarly journals Effect of Vulcanization Process Parameters on the Tensile Strength of Carcass of Textile-Rubber Reinforced Conveyor Belts

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7552
Author(s):  
Tsegaye Sh. Lemmi ◽  
Marcin Barburski ◽  
Adam Kabzinski ◽  
Krzysztof Frukacz
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Tensile Property ◽  
Process Parameters ◽  
Conveyor Belt ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Polyamide 66 ◽  
Conveyor Belts ◽  
Vulcanization Process

Textile-reinforced conveyor belts are most widely used in various industries, including in the mining, construction, and manufacturing industries, to transport materials from one place to another. The conveyor belt’s tensile strength, which primarily relies on the property of the carcass, determines the area of application of the belt. The main aim of the current work was to investigate the influence of vulcanization temperature and duration of the vulcanization process on the tensile properties of the carcass part of the conveyor belt. An extensive experiment was carried out on the tensile properties of woven fabrics that were intended to reinforce conveyor belts by aging the fabrics at the temperature of 140 °C, 160 °C, and 220 °C for six and thirty-five minutes of aging durations. Afterward, the textile-reinforced conveyor belts were produced at vulcanization temperatures of 140 °C, 160 °C, and 220 °C for six and thirty-five minutes of vulcanizing durations. The influence of the vulcanization process parameters on the tensile property of fabrics utilized for the reinforcement of the conveyor belt was analyzed. In addition, the effect of the dipping process of woven fabric in resorcinol–formaldehyde–latex on the tensile property of polyester/polyamide 66 woven fabric (EP fabric) was investigated. The investigation results revealed that the tensile strength of the carcass of the conveyor belt was significantly affected by vulcanization temperature. The conveyor belt vulcanized at 160 °C for 35 min has shown the optimum tensile strength, which is 2.22% and 89.06% higher than the samples vulcanized at 140 °C and 220 °C for 35 min, respectively. Furthermore, the tensile strength and percentage elongation at break of conveyor belts vulcanized at 220 °C were almost destroyed regardless of the vulcanization duration.

scholarly journals Remeshing procedure for discrete membrane finite element: application to woven composite forming

2012 ◽  
Author(s):  
Abel Cherouata ◽  
Laurence Moreau ◽  
Rezak Ayad ◽  
Tarak Ben Zineb
Keyword(s):  
Finite Element ◽  
Composite Materials ◽  
Finite Elements ◽  
Woven Fabrics ◽  
Unit Cell ◽  
Woven Fabric ◽  
Complex Structures ◽  
Woven Composite ◽  
Quadrilateral Element ◽  
Composite Forming

Pre-impregnated woven fabric is an increasingly important component as the reinforcement phase of composite materials for many mechanical structures (automotive and aerospace). Modelling woven fabrics is difficult due, in particular, to the need to simulate the response both at the scale of the entire fabric and at the meso-level, the scale of the fibre that composes the weave. Here, we present new finite element for the simulation of the 3D, preimpregnated woven fabric preform. Continuum-level modelling technique that, through the use of an appropriate bi-component unit cell (fiber rotation quadrilateral element connected to truss elements), captures the deformation of the mesostructure of the fabric without explicitly modelling every fibre. Simulations of the experiments demonstrate that the finite elements are capable of efficiently simulating large, complex structures and forming processes.

The study of needle type influence on woven fabric surface area during the sewing process

2021 ◽  
pp. 004051752110191
Author(s):  
Beti Rogina-Car ◽  
Stana Kovačević
Keyword(s):  
Computer Program ◽  
Tensile Properties ◽  
Surface Area ◽  
Cotton Fabrics ◽  
Woven Fabric ◽  
Microscopic Images ◽  
Needle Type ◽  
Fabric Surface ◽  
Needle Point

The aim of this study was to investigate the damage to cotton fabrics (ticking and damask) caused by stitching with three types of needle point shapes (R, SES and SUK) and four needle sizes (70, 80, 90 and 100 Nm). Damage to the yarn and the surface area of the hole were investigated. Based on the results, it can be concluded that two types of damage occur during sewing: the needle passes through the warp/weft (it displaces the yarn) and the needle damages the warp/weft. An analysis and comparison of the surface area of the holes was carried out, obtained by a computer program based on microscopic images. The results show greater damage to the yarn at the needle piercing point in the ticking due to higher density, friction and low yarn migration. The largest surface area of the holes was produced when sewing with SUK-designated needles on ticking and damask. When sewing damask, R-designated needles cause the least damage to the piercing point, whereas SES-designated needles give the best results when sewing the ticking. Thread damage was further confirmed by testing the tensile properties of the yarn at the needle piercing points.

scholarly journals Use of Extended Cover Factor Theory in UV Protection of Woven Fabric

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1188
Author(s):  
Klara Kostajnšek ◽  
Krste Dimitrovski
Keyword(s):  
Woven Fabrics ◽  
Uv Protection ◽  
Woven Fabric ◽  
Simplified Model ◽  
Light Penetration ◽  
Protective Properties ◽  
Cover Factor ◽  
Coefficient Of Reflection ◽  
Uv Protective Properties

The paper presents an extension of existed cover factor theory more suitable for the evaluation of light penetration through a net woven fabrics structure. It also introduces a new simplified model of predicting the ultraviolet (UV) protective properties of woven fabrics assuming that the coefficient of reflection (KR), transmission (KT), and absorption (KA) of constitutive yarns are known. Since usually they are not, the procedure of preparation of simulation of proper woven fabric samples without interlacing and with known constructional parameters is also presented. The procedure finishes with a fast and cheap detection of missed coefficient for any type of yarns. There are differences between theoretical and measured results, which are not particularly significant in regard to the purpose and demands of investigation.

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