Effects of linear density and twist level on the mechanical properties of nylon 6.6 tyre cords

2010 ◽  
Vol 11 (2) ◽  
pp. 309-315 ◽  
Author(s):  
Ayşe Aytaç ◽  
Berrin Yilmaz ◽  
Veli Deniz
Keyword(s):  
Mechanical Properties ◽  
Linear Density ◽  
Twist Level

ARAMID–NYLON 6.6 HYBRID CORDS AND INVESTIGATION OF THEIR PROPERTIES

2012 ◽  
Vol 85 (2) ◽  
pp. 180-194 ◽  
Author(s):  
Berrin Yilmaz
Keyword(s):  
Mechanical Properties ◽  
Linear Density ◽  
Thermally Stable ◽  
High Modulus ◽  
Synthetic Yarn ◽  
Product Property ◽  
High Fatigue ◽  
High Elongation ◽  
Low Modulus ◽  
Twist Level

Abstract Hybrid cords of two different polyamide yarns, poly(p-phenylene terephthalamide; aramid) and poly(hexamethylene adipamide; nylon 6.6) have been investigated. Aramid is a high-tenacity, high-modulus, low-elongation, and thermally stable yarn material. Nylon 6.6 is a high-elongation, low-modulus, high-fatigue-resistant, and good adhering synthetic yarn. The combination of these two different synthetic yarns enables hybrid cords with a diversified range of mechanical properties. The hybrid cord product property diversification is achieved by proper combination of different cord-forming properties of individual plies, such as linear densities, twist levels, ply numbers, treating conditions, and so forth. The effect of linear densities, twist level of plies, and twist level of cabled cord and ply number on the cord properties and also cord performance have been summarized. Aramid yarn having an 1100 linear density has been combined with nylon 6.6 yarn with a different linear density, ranging from 940 to 2100, to form hybrid cord structures. Twisting of aramid and nylon 6.6 yarns has been kept between 150 and 450 twists per meter, while the ply number of aramid and nylon 6.6 yarns has been varied as one and two plies by keeping the total ply number of the cord as three.

The Effect of Yarn Linear Density on Mechanical Properties of Plain Woven Kenaf Reinforced Unsaturated Polyester Composite

2013 ◽  
Vol 465-466 ◽  
pp. 962-966 ◽  
Author(s):  
Mohd Pahmi bin Saiman ◽  
Mohd Saidin Bin Wahab ◽  
Mat Uzir Wahit
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Linear Density ◽  
Unsaturated Polyester ◽  
Composite Panel ◽  
Composite Yarn ◽  
Polyester Composite ◽  
The Impact ◽  
Woven Kenaf

To produce a good quality of dry fabric for reinforced material in a natural-based polymer composite, yarn linear density should be in consideration. A woven kenaf dry fabric with three different linear densities of 276tex, 413.4tex and 759tex were produced. The fabrics with different linear densities were been optimize with the assistance of WiseTex software. The optimized dry fabrics were infused with unsaturated polyester to produce composite panel using vacuum infusion process. The composites properties were tested on the tensile strength, flexural strength and the impact strength. The result shows that the mechanical properties of the composite increased when the yarn linear densities increased.

Modification of Cotton Yarns for Smart Socks Production

2019 ◽  
Vol 800 ◽  
pp. 331-335
Author(s):  
Ieva Bake ◽  
Vineta Afanasjeva ◽  
Silvija Kukle
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Linear Density ◽  
Sol Gel ◽  
Antimicrobial Properties ◽  
Mean Value ◽  
Cotton Yarn ◽  
Yarn Strength ◽  
Prototype Development ◽  
Cotton Yarns

The functionality of textiles can be complimented by using a wide variety of modification technologies. This study focuses on textile modification with sol-gel technology as a part of smart sock prototype development. Zinc acetate dehydrate (ZAD) is integrated in sol synthesis and used as modifier thus improving modified cotton yarn mechanical properties and also can prolong time between washing, taking into account modifiers antimicrobial properties. Four hanks of pure cotton yarns with length of 300 m, where modified with silica-based sol with 7,5 wt% ZAD as a modifier. As a part of this study tensile strength and elongation of yarn was determined and changes in liner density were observed. Average yarn linear density increases by 19 % and linear density for knitted samples increases by 2,6 %. Therefore, yarn strength for 80 % of modified samples shows mean value of 2,32 N, that is 17 % higher than unmodified samples.

Effect of polyester and elastane linear density on the physical and mechanical properties of dual-core-spun cotton yarns

2018 ◽  
Vol 17 (4) ◽  
pp. 463-471 ◽  
Author(s):  
Abdul Jabbar ◽  
Usman Tariq ◽  
Tanveer Hussain ◽  
Abdul Basit ◽  
AbdulMoqeet Hai ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Linear Density ◽  
Physical And Mechanical Properties ◽  
Cotton Yarns ◽  
Dual Core

Effect of Elastane Parameters on the Dimensional and Mechanical Properties of Stretchable Denim Fabrics

2020 ◽  
pp. 0887302X2096881
Author(s):  
Muhammad Bilal Qadir ◽  
Zulfiqar Ali ◽  
Ali Afzal ◽  
Muhammad Irfan ◽  
Tanveer Hussain ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Regression Analysis ◽  
Elastic Properties ◽  
Linear Density ◽  
Cotton Yarn ◽  
Performance Properties ◽  
The Core ◽  
Denim Fabric ◽  
And Performance

Denim is one of the most popular casual apparel all over the globe due to a variety of available looks, comfort, and convenience. Comfort and performance properties of stretched denim fabrics depend on the elastane content, which can be controlled through the linear density of elastane and draft-ratio in the core of the cotton yarn. Optimization of both of linear density and draft-ratio of elastane for the better performance of denim fabric were focused upon in this study. The results indicated that the elastane content inside the core of yarn affects the dimensional and mechanical properties of denim fabrics. Regression analysis indicated that elastane linear-density and draft-ratio had an almost equal significance on contraction after washing, stretchability, stiffness, skewness, and bow of fabric. However, the elastic properties of fabric were mainly dependent on the elastane draft-ratio. This study will be an endeavor for industry personnel to achieve more durable and dimensionally stable denim fabrics.

Study on the Structure and Property of Ultra-Fine Denier PET Full Drawing Yarn: Effect of Draw Ratio and Take-Up Velocity

2011 ◽  
Vol 217-218 ◽  
pp. 377-382
Author(s):  
Feng Lei Shen ◽  
Guo Qiang Chen ◽  
Jiang Zhong Ding ◽  
Ju Yan Dai ◽  
Xiu Feng Yu
Keyword(s):  
Mechanical Properties ◽  
Crystalline Structure ◽  
Draw Ratio ◽  
Linear Density ◽  
Molecular Chain ◽  
Boiling Water ◽  
Crystalline Size ◽  
Sonic Velocity ◽  
Structure And Property ◽  
Xrd Method

The effect of draw ratio and take-up velocity on the structure and property of the ultra-fine denier PET full drawing yarn (PET-FDY) with monofilament linear density equal to 0.38dTex was studied in this paper. The crystalline structure and crystalline size were determined by XRD method and size was reduced with increase of draw ratio. The orientation of whole molecular chain was determined using sonic velocity method. The mechanical properties and boiling water shrinkage were also examined. Draw ratio had greater influence on the boiling water shrinkage than take-up velocity did.

Tensile Mechanical Properties of Three-Strand PE/SiO2 Composite Fiber Rope

2014 ◽  
Vol 1033-1034 ◽  
pp. 921-926
Author(s):  
Jian Gao Shi ◽  
Wen Wen Yu ◽  
Wen Zhu Zhong ◽  
Yong Li Liu ◽  
Ming Hua Min ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Efficient Method ◽  
Linear Density ◽  
Lower Cost ◽  
Composite Fiber ◽  
Synthetic Fiber ◽  
Breaking Force ◽  
Elongation At Break ◽  
The Common ◽  
Fishing Area

The tensile mechanical properties of polyethylene/silica (PE/SiO2) composite fiber and three-strand PE/SiO2composite fiber ropes were investigated. It was found that the SiO2content had a significant effect on the tensile mechanical properties of composite fiber. The breaking force of the fishing three-strand PE/SiO2composite fiber rope with diameter 8 mm was 15.8 kN. Compared to common synthetic fiber rope with the same diameter, fishing three-strand PE/SiO2composite fiber rope had higher breaking force and less elongation. On the premise of maintain the breaking force, the common synthetic fiber rope could be replaced by the fishing three-strand PE/SiO2composite fiber rope in fishing area, and the linear density, the elongation at break, the netting gear resistance and using diameter of rope decreased. Therefore, an efficient method to improve the tensile mechanical properties and lower cost by using composite fiber rope was established.

The Mechanical Properties of Bamboo/PLA Composites Made by Biaxial Weft Knitted Fabrics

2011 ◽  
Vol 331 ◽  
pp. 89-92 ◽  
Author(s):  
Cang Zhao ◽  
Guang Li Song ◽  
Hua Wu Liu
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Polylactic Acid ◽  
Natural Environment ◽  
Linear Density ◽  
Green Composite ◽  
Excellent Performance ◽  
Preparation Technology ◽  
Knitted Fabrics ◽  
Flexural Performance

Bamboo fiber reinforced polylactic acid composite is a kind of green composite materials with excellent performance, which is environmental safe and degradable in natural environment. Literature regarding the characteristics of reinforcement and matrix, pretreatment methods, preparation technology and biodegradable nature of the bamboo/ polylactic acid composite was reviewed and a particular bamoo/ polylactic acid composite made by biaxial weft knitted fabrics was developed. The composite demonstrated excellent tensile and flexural performance. In addition, the influence of the linear density of the binder yarns on the mechanical properties of this composite was insignificant.

scholarly journals Influence of Separating Fibrous Seed Mass to Fractions to Quality

2020 ◽  
Vol 9 (1) ◽  
pp. 200-202
Keyword(s):  
Mechanical Properties ◽  
Shear Strength ◽  
Linear Density ◽  
Seed Mass ◽  
Physical And Mechanical Properties ◽  
Small Scale ◽  
High Quality ◽  
Elongation At Break ◽  
Modern Equipment ◽  
Quadratic Inequality

This article describes the fourth type of medium-fiber Hampor, currently widely used in the Surkhandarya region, the lengnth is about 160-170 mg, 171-180 mg, 181-190 mg, 191-200 mg, 201-205 mg, 206-210 mg was divided into fractions by mass of fibers, the LKM equipment was cleaned of fine and dirty particles in the laboratory of the ginnery, DL-10 was isolated from the fiber on the ginning equipment, and the physical and mechanical properties of the seeds, and 20.0 texts were made from the cotton fiber at the “Sherli” small-scale spinning device at the “Pakhtasanoat Research Center” AC. Physical and mechanical properties of the yarn, i.e. quadratic inequality of linear density, quadratic inequality by the number of twists, quadratic inequality in strength, durability, comparative shear strength, elongation at break, elongation in discontinuity was identified with the help of modern equipment and the spinning plant was able to split fibers into fractions for the production of high quality yarn, optimal versions were proposed.

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