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 Elastane Denier and Draft Ratio of Core-Spun Cotton Weft Yarns on the Mechanical Properties of Woven Fabrics

2014 ◽  
Vol 9 (1) ◽  
pp. 155892501400900 ◽  
Author(s):  
Bilal Qadir ◽  
Tanveer Hussain ◽  
Mumtaz Malik
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Linear Density ◽  
Woven Fabrics ◽  
Cotton Yarn ◽  
Regression Analyses ◽  
Tear Strength ◽  
The Core ◽  
Specific Effects

Elastane percentage in the core-spun cotton yarn of a specific linear density can be affected in two ways: either by changing the elastane denier or the draft ratio. The purpose of this study was to find out whether different mechanical properties of fabrics woven from such yarns simply depend upon the elastane percentage or whether the method of achieving a desired elastane percentage has specific effects. It was found through regression analyses that both the elastane denier and the draft ratio are almost equally important for fabric tear strength and stretchability, whereas the fabric tensile strength is predominantly influenced by the elastane denier while the fabric recovery after stretch is mainly influenced by the elastane draft ratio.

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.

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

Preparation of a Bioactive Poly(ε-Caprolactone) Triol/Silica Composite

2006 ◽  
Vol 309-311 ◽  
pp. 481-484
Author(s):  
Sang Hoon Rhee ◽  
Yong Keun Lee ◽  
Bum Soon Lim
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Elastic Modulus ◽  
Body Fluid ◽  
Sol Gel ◽  
Tetraethyl Orthosilicate ◽  
3 Dimensional ◽  
Silica Composite ◽  
Dimensional Network ◽  
Heat Treated

Effect of poly(ε-caprolactone) structure on the mechanical properties and apatite-forming ability of poly(ε-caprolactone)/silica composite was investigated. Star-shaped poly(ε-caprolactone) was used in the experiment and it was end-capped with 3-isocyanopropyl triethoxysilane following the reaction with tetraethyl orthosilicate by sol-gel method. It was heat-treated at 150 oC for 24 hours and then tensile mechanical and dynamic viscoelastic testings were conducted, respectively. Its bioactivity was evaluated by the apatite forming ability in simulated body fluid at 36.5 oC. Its tensile strength was about 22 MPa while elastic modulus was about 2.6 GPa when the content of poly(ε-caprolactone) was 60 wt.%. The formation of apatite crystals on its surface was confirmed after 1 week of soaking in the SBF. The high elastic modulus of this composite was explained in terms of its 3-dimensional network structure.

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.

scholarly journals Tailoring the Mechanical Performance of Epoxy Resin by Various Nanoparticles

2008 ◽  
Vol 16 (8) ◽  
pp. 527-533 ◽  
Author(s):  
Sheng Liu ◽  
Hui Zhang ◽  
Zhong Zhang ◽  
Taihua Zhang ◽  
Stephan Sprenger
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Tensile Strength ◽  
Epoxy Resin ◽  
Silica Nanoparticles ◽  
Mechanical Performance ◽  
Sol Gel ◽  
Nanoparticle Dispersion ◽  
Nanosilica Particles ◽  
The Cost

Flexible organic elastomeric nanoparticles (ENP) and two kinds of rigid inorganic silica nanoparticles were dispersed respectively into a bisphenol-A epoxy resin in order to tailor and compare the performance of mechanical properties. It was found that the well-dispersed flexible ENP greatly enhanced the toughness of the epoxy with the cost of modulus and strength. Comparatively, the rigid silica nanoparticles improved Young's modulus, tensile strength and fracture toughness simultaneously. Both fumed and sol-gel-formed nanosilica particles conducted similar results in reinforcing the epoxy resin, although the latter exhibited almost perfect nanoparticle dispersion in matrix. The toughening mechanisms of nanocomposites were further discussed based on fractographic analysis.

scholarly journals Effect of Precuring Warming on Mechanical Properties of Restorative Composites

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Kareem Nada ◽  
Omar El-Mowafy
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Room Temperature ◽  
Surface Hardness ◽  
Mean Value ◽  
Test Surface ◽  
Bulk Properties ◽  
Mean Values ◽  
Enhanced Surface ◽  
Diametral Tensile Strength

To investigate the effect of prepolymerization warming on composites' mechanical properties, three composites were evaluated: Clearfil Majesty (CM) (Kuraray), Z-100 (3M/ESPE), and Light-Core (LC) (Bisco). Specimens were prepared from each composite at room temperature as control and 2 higher temperatures (37∘Cand54∘C) to test surface hardness (SH), compressive strength (CS), and diametral tensile strength (DTS). Data were statistically analyzed using ANOVA and Fisher's LSD tests. Results revealed that prewarming CM and Z100 specimens significantly improved their SH mean values (P<0.05). Prewarming also improved mean CS values of Z100 specimens (P<0.05). Furthermore, DTS mean value of CM prepared at52∘was significantly higher than that of room temperature specimens (P<0.05). KHN, CS, and DTS mean values varied significantly among the three composites. In conclusion, Prewarming significantly enhanced surface hardness of 2 composites. Prewarming also improved bulk properties of the composites; however, this improvement was significant in only some of the tested materials.

Variability Assessment of the Compressive and Tensile Strength of Fibred Earthen Composites

2022 ◽  
Author(s):  
Philippe Poullain ◽  
Mircea Barnaure ◽  
Stéphanie Bonnet
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Standard Deviation ◽  
Probability Density Function ◽  
Building Materials ◽  
Mean Value ◽  
Rammed Earth ◽  
The Mean ◽  
The Many

Earthen composites (rammed earth, cob, adobe, daub, CEB...) are experiencing renewed interest from builders due to the many advantages of these building materials, and in particular their eco-friendliness. Nevertheless, the widespreading of these materials, as certified materials and conforming to construction standards, comes against the lack of data concerning their mechanical properties. Indeed, the literature generally gives the average values of the properties without indicating the number of specimens tested neither the distribution of the data. Yet, the mean value of the compressive strength is not enough to assess the reliability of a given earthen composite to build a wall and it would be better to indicate the value of a defined percentile (characteristic value just like with concrete composites). The aim of this paper is to analyze the data about the mechanical properties (tensile and compressive strength) obtained on different formulations of cob including natural fibres or not. The tests performed allowed to determine the probability density function and the average values, the standard deviation and the percentiles, for the various properties.

A Preliminary Study on Cryogenic Mechanical Properties of Epoxy Blend Matrices and SiO2/Epoxy Nanocomposites

2006 ◽  
Vol 312 ◽  
pp. 211-216 ◽  
Author(s):  
Shao Yun Fu ◽  
Qin-Yan Pan ◽  
Chuan Jun Huang ◽  
Guo Yang ◽  
Xin-Hou Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Room Temperature ◽  
Sol Gel ◽  
Sio2 Nanoparticles ◽  
Diglycidyl Ether ◽  
Slight Reduction ◽  
Epoxy Nanocomposites ◽  
Sol Gel Process ◽  
Cryogenic Mechanical Properties

Epoxy blend matrices were prepared by incorporating polyurethane-epoxy into diglycidyl ether of bisphenol-F (DGEBF) type epoxy while SiO2/epoxy nanocomposites were made using DGEBF type epoxy and tetraethylorthosilicate (TEOS) via a sol-gel process. The mechanical properties including tensile and impact properties at 77 K of the matrices and nanocomposites were studied. The mechanical properties at room temperature were also given for the purpose of comparison with the cryogenic mechanical properties. The results showed that the incorporation of polyurethane-epoxy with a proper content into DGEBF type epoxy enhanced the mechanical properties at both room and cryogenic temperatures. Addition of SiO2 nanoparticles to DGEBF type epoxy led to significant increase in tensile strength at cryogenic temperature (77 K) while no evident change in tensile strength at room temperature. In addition, a slight enhancement by the addition of 2 wt % silica while a slight reduction by the addition of 4 wt % silica were observed in impact energy.

Study of maximum tensile strength of fancy yarns using the design of experiments

2019 ◽  
Vol 20 (4) ◽  
pp. 403 ◽  
Author(s):  
Malek Alshukur ◽  
Alex Fotheringham
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Maximum Load ◽  
Cotton Yarn ◽  
Core Component ◽  
Structure Quality ◽  
The Core ◽  
Relative Contribution ◽  
Low Levels ◽  
Fancy Yarns

This study was conducted to identify the factors and the interactions which affect the maximum load of multi-thread fancy yarns. The objectives of this research was to identify the relative contribution of each factor and interaction leading to the maximisation of the tensile strength. The fancy yarns were made on a hollow-spindle spinning machine. The experimental design of this study had seven factors – with two levels each and was repeated five times. It was found that using two single yarns, instead of a similar two-ply yarn, for the core component increased the value of maximum load. The effect component contributed positively to the load only when it was a three-ply cotton yarn rather than a three-ply bamboo yarn since the former had interactions with the core and the binder. Excessive wraps reduced the maximum load. The effect of the overfeed ratio on the maximum load was weak. The manufacturing process in general had low levels of variability. This research is important because it contributes to a broader understanding to the effect of seven factors on the structure, quality, and mechanical properties of multi-thread fancy yarn.

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