Influence of Low Temperature Dyeing Process on Physical and Mechanical Properties of Cashmere Knitwear

2012 ◽  
Vol 441 ◽  
pp. 44-48
Author(s):  
Fang Xie ◽  
Xiao Ping Li ◽  
Xiu Li Wang ◽  
Li Qiu ◽  
Ye Tian
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Abrasion Resistance ◽  
Physical And Mechanical Properties ◽  
Dyeing Process ◽  
Lower Temperature

In this paper, cashmere knitwear is dyed at a lower temperature compared to conventional dyeing, and its physical and mechanical properties are analyzed and compared. The results show that cashmere knitwear dyed at low temperature can improve cashmere knitwear quality. It is also shown that cashmere knitwear dyed at low temperature can have improved physical and mechanical properties, especially its strength, abrasion resistance and pilling resistance.

scholarly journals STUDY OF THE EFFECT OF DIOCTYL SEBACATE ON THE PROPERTIES OF EPICHLOROHYDRIN RUBBERS

2021 ◽  
pp. 27-32
Author(s):  
A. F. Fedorova ◽  
M. L. Davydova ◽  
V. V. Pavlova ◽  
N. V. Shadrinov ◽  
A. R. Khaldeeva ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Physical And Mechanical Properties ◽  
Shielding Effect ◽  
Dioctyl Sebacate ◽  
Epichlorohydrin Rubbers

The effect of different technologies for the introduction of a plasticizer - dioctyl sebacate on the properties of rubbers based on epichlorohydrin rubber of the Hydrin T-6000 brand was investigated. When using the technology of rubber swelling in a plasticizer, dioctyl sebacate exhibits a shielding effect, reducing the interaction of the filler-polymer, which leads to an improvement in low-temperature properties and a deterioration in the physical and mechanical properties of the material.

Effect of Low Temperature Heat Treatment for R512E Coated C-103 Nb Alloy

2021 ◽  
Vol 875 ◽  
pp. 266-271
Author(s):  
Shaikh Asad Ali Dilawary ◽  
Muhammad Khalid ◽  
Amjad Ali ◽  
Hamid Zaigham
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Low Temperature ◽  
Dwell Time ◽  
Silicide Coating ◽  
Oxidation Protection ◽  
Time Period ◽  
Temperature Heat ◽  
Lower Temperature ◽  
Temperature Heat Treatment

The article aims to investigate the feasibility of oxidation protection imparted to C-103 Nb-based alloy by fused slurry silicide coating of R512E (60Si20Fe20Cr) carried out at lower temperature (1200 °C) for higher dwell time i.e. 12 hours. The findings reveal that the coating treated can impart sufficient oxidation resistance the alloy, which may withstand the desired application conditions wherein oxidation protection for smaller time period is needed. Moreover, this treatment is not found to deteriorate other mechanical properties of the alloy in 'As coated' condition.

scholarly journals Studying the physical and mechanical properties of Acrylonitrile butadiene rubber / carbon / clinke

2021 ◽  
Vol 28 (1) ◽  
pp. 110-116
Author(s):  
Ali Alhaidar ◽  
Ali Ali ◽  
Mayssa Shash
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Abrasion Resistance ◽  
Chemical Properties ◽  
Physical And Mechanical Properties ◽  
Filling Material ◽  
Butadiene Rubber ◽  
Rubber Blends ◽  
Roll Mill ◽  
And Chemical Properties

This research studies the effect of adding the clinker as a filling material on the properties of Acrylonitrilebutadiene rubber NBR ،by means of preparing rubber blends containing different percentage (0,5,10,15,20 Phr) of theclinker (Semi made-cement) ،on two roll mill. Physio -mechanical and chemical properties of the prepared blends weredescribed by testing them for tensile strength and abrasion resistance, values of hardness and swelling in differentsolvents. Results revealed a decrease in the tension resistance for rubber blends c/k at the percentage of 45% withincrease of the percentage of the clinker added with the above mentioned rubber blends ,Also ,values of hardnessdecreased direct proportional at a percentage of 19% with increasing the clinker ,percentage whereas, the frictionresistance decreased at a percentage of 254% with increasing the clinker percentage ,but according to elongation ,theresults were quite different from the previous results so that its percentage increased when cutting gradually with thevalue of 266%when percentage of added clinker increased. Results of the study also, revealed that swelling of thesamples containing only the black carbon (C45K0) was low comparing with the samples containing the clinker.

scholarly journals Effect of 45S5 bioactive glass on the sintering temperature of titanium-hydroxyapatite composite

2021 ◽  
Vol 1192 (1) ◽  
pp. 012021
Author(s):  
D S Abu Bakar ◽  
M G Kutty ◽  
N A Yahya
Keyword(s):  
Mechanical Properties ◽  
Bioactive Glass ◽  
Sintering Temperature ◽  
Physical And Mechanical Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
Volumetric Expansion ◽  
Fourier Transformed Infrared Spectroscopy ◽  
Lower Temperature ◽  
Mechanical Properties And Corrosion

Abstract Titanium (Ti) is widely known for its good mechanical properties and corrosion resistance. However, it has poor biocompatibility. Hydroxyapatite (HA) is a biocompatible material but has poor mechanical properties. Making Ti-HA composite creates a promising choice of biomaterial in dental and medical applications. However, creating a Ti-HA composite requires sintering at high temperatures which leads to oxidation of Ti. The aim of this study was to reduce the sintering temperature of Ti-HA composite by incorporating 45S5 Bioactive Glass (BG) without compromising the chemical, physical and mechanical properties of the composite. In this study, a Ti-HA-BG composite with wt% of 45-45-10 respectively was produced via powder metallurgy. This was compared with the control composite consisting of 50 wt% Ti- 50 wt% HA. Powders according to the above-mentioned ratio were milled at 200 rpm for 5 hours by using a planetary ball milling machine. Samples were then compacted into cylindrical pellets via uniaxial pressing at 1500 psi and sintered in an atmospheric furnace at 1000 °C, 1100 °C and 1200 °C for 4 hours. Ti-HA and Ti-HA-BG sample characteristics were examined and compared by using Fourier Transformed Infrared Spectroscopy (FTIR), Energy Dispersive X-Ray (EDX) and X-Ray Diffraction (XRD). The density and volumetric expansion of the composites were also measured and compared. Results from XRD data indicate the reduction of oxidation of Ti and decomposition of HA in Ti-HA-BG composite at lower temperature in comparison to Ti-HA composite. The density of Ti-HA-BG composites are higher compared to Ti-HA composite while the volumetric expansion of Ti-HA-BG composites is lesser than Ti-HA composite. Therefore, BG is a low melting point additive that acts as a good sintering aid to effectively lower the sintering temperature while maintaining the desired properties of initial components.

scholarly journals Statistical analysis of mechanical properties on the example of aggregates of Carpathian sandstones

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Joanna Hydzik-Wiśniewska ◽  
Łukasz Bednarek
Keyword(s):  
Mechanical Properties ◽  
Statistical Analysis ◽  
Los Angeles ◽  
Abrasion Resistance ◽  
Physical And Mechanical Properties ◽  
Resistance Coefficient ◽  
Resistance Test ◽  
Mathematical Function ◽  
Number Of Publications ◽  
Two Parameters

AbstractThe constantly growing, broadly understood, construction industry requires the use of a large amount of aggregates. The construction of roads, motorways, railway lines and hydrotechnical structures requires the use of aggregates of high quality, which is primarily determined by mechanical properties. The basic parameters describing mechanical properties of aggregates are the Los Angeles (LA) fragmentation resistance coefficient and the Micro-Deval (MDE) abrasion resistance coefficient. The LA and MDE coefficients depend mainly on the type of rock and its physical and mechanical properties. This has been thoroughly researched and documented as evidenced by the abundant literature in the field. However, the correlation between LA and MDE coefficients still gives rise to extensive discussions and some concerns. A number of publications demonstrate dependencies for various types of aggregates. Therefore, research was undertaken to present statistical analysis for one type of aggregate and one geological area.This article presents the results of the fragmentation resistance test in the Los Angeles drum and the abrasion resistance test in the Micro-Deval drum of aggregates from Carpathian sandstone deposits. Aggregate samples were divided into three groups according to the location of the deposits and the tectonic unit from which they originated. The obtained results were subjected to static analysis to fit the best mathematical function describing the relationship between the two parameters.

Halogen-Containing Fire Resistant Copolyesters

2021 ◽  
Vol 899 ◽  
pp. 17-23
Author(s):  
Zakhirat Sultigova ◽  
Zareta Inarkieva ◽  
Arsen Kharaev ◽  
Rima Bazheva ◽  
Maryam Parchieva
Keyword(s):  
Mechanical Properties ◽  
Infrared Spectroscopy ◽  
Low Temperature ◽  
Fire Resistance ◽  
Acid Chloride ◽  
Physical And Mechanical Properties ◽  
Isophthalic Acid ◽  
Hydroxybenzoic Acid ◽  
Acid Chlorides ◽  
X Ray

Copolyarylates based on a mixture of 2,2-bis (4'-hydroxyphenyl) propane, 3,3-bis (4'-hydroxyphenyl) phthalide, terephthalic and isophthalic acid chlorides and 3,5-dibromo-p-hydroxybenzoic acid chloride were synthesized by low-temperature acceptor-catalytic polycondensation. To study the structure of the obtained polyesters and study the physical and mechanical properties, infrared spectroscopy, elemental, thermogravimetric, X-ray structural and thermomechanical analyzes were used. The obtained polymers have high values ​​of strength characteristics, thermal and heat resistance, good fire resistance.

scholarly journals Regarding some mechanical properties of terrace board made of wood-polymer composites with different filler

2021 ◽  
Vol 12 (2) ◽  
pp. 33-39
Author(s):  
N. V. Buiskykh
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Polymer Composites ◽  
Modulus Of Elasticity ◽  
Abrasion Resistance ◽  
Physical And Mechanical Properties ◽  
Wood Waste ◽  
Bending Modulus ◽  
Wood Polymer ◽  
Wood Polymer Composites

One of the areas of wood waste processing is their use in the production of wood-polymer composites (WPC). The relevance of wood-polymer products is due to the wide range of applications and qualities of this material. WPC does not rot, is not damaged by insects and fungi, does not contain harmful binders. Products from the duodenum do not crack, do not gouge, are waterproof, which makes them an excellent material for manufacturing a terrace board. However, the terrace board must have certain mechanical qualities, which will allow it to be used in fairly harsh conditions - under the action of humidity, UV radiation and under a certain load. This study aimed to determine the main physical and mechanical properties (density, strength at static bending, modulus of elasticity, water absorption, hardness, abrasion resistance, changes in linear dimensions with changing atmospheric environment) samples of terrace board manufacturing from duodenum with different fillers. Samples from a hollow terrace board, which were filled with polyethylene (PE) and polyvinyl chloride (PVC), were used for the study. Based on experimental studies, it was found that the density of both samples is quite high, close to the maximum; the difference is not significant, but when examining microslices under a microscope in samples with PE as a binder, a larger number of voids is observed, indicating the presence of excess moisture or lack of mineral fillers. It may also indicate the destruction of the polymer. It was determined that a number of other important indicators such as strength at static bending, modulus of elasticity, water absorption, abrasion resistance were the best in the samples with a filler of polyvinylchloride. The greatest difference was in the bending strength index and was 35%. It was also found that the hardness of both samples were equivalent. However, the modulus of elasticity of the sample with a filler with PE exceeded the performance of the sample with a filler with PVC by almost 2.5 times. Thus, based on the research, it is possible to identify a number of clear relationships that indicate that theuse of polyvinylchlorideas a binder significantly improves the physical and mechanical properties of the terrace board based on wood-polymer composite. The results of the research will solve the problem of improving the strength characteristics of wood-composite material to expand the range based on wood waste Keywords: density, hardness, modulus of elasticity, water absorption, abrasion resistance.

Sign in / Sign up

Export Citation Format

Share Document