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Showing posts with label ADVANCED TEXTILES. Show all posts
Showing posts with label ADVANCED TEXTILES. Show all posts

Wednesday, 2 September 2020

Wednesday, 26 August 2020

Transmission Electron Microscope | TEM

Working Principles:
A transmission electron microscope fires a beam of electrons through a specimen to produce a magnified image of an object.
TEM working flows.

Tuesday, 25 August 2020

Scanning Electron Microscope | SEM

Working Principles: Produces images of a sample by scanning the surface with a focused beam of electrons. Electrons from the beam hit the surface of the sample and bounce off it as the secondary electron, backscattered electron etc. A detector registers these scattered electrons and turns them into a picture.
SEM Working flows.

Sunday, 23 August 2020

Thermogravimetric Analyzer | TGA

Thermogravimetric Analyser (TGA) measures weight changes in a material as a function of temperature (or time) under a controlled atmosphere. Its principle uses include measurement of a material’s thermal stability, filler content in polymers, moisture and solvent content, and the percent composition of components in a compound.

Construction
The thermogravimetric analysis instrument usually consists of a high-precision balance and sample pan. The pan holds the sample material and is located in a furnace or oven that is heated or cooled during the experiment. A thermocouple is used to accurately control and measure the temperature within the oven. The mass of the sample is constantly monitored during the analysis. An inert or reactive gas may be used to purge and control the environment. 


Thermogravimetric Analyzer | TGA


Principle of Operation
A TGA analysis is performed by gradually raising the temperature of a sample in a furnace as its weight is measured on an analytical balance that remains outside of the furnace.

Saturday, 22 August 2020

Differential Scanning Calorimetry | DSC

Differential Scanning Calorimetry (DSC) is a thermal analysis technique in which the heat flow into or out of a sample is measured as a function of temperature or time, while the sample is exposed to a controlled temperature program. It is a very powerful technique to evaluate material properties such as glass transition temperature, melting, crystallisation, specific heat capacity, cure process, purity, oxidation behaviour, and thermal stability.

Construction
There are two pans. In one pan, the sample pan, you put your polymer sample. The other one is the reference pan. You leave it empty. Each pan sits on top of a heater. Then you tell the nifty computer to turn on the heaters. So the computer turns on the heaters and tells it to heat the two pans at a specific rate, usually something like 10ºC per minute. The computer makes absolutely sure that the heating rate stays exactly the same throughout the experiment.

Differential Scanning Calorimetry | DSC

Thursday, 6 August 2020

An Overview on Carbon Nanotubes

Materials of which single unit size is in between 1 to 1000 nanometers but usually is 1 to 100 nm are termed as the nanomaterials. Carbon Nanotubes ( a form of carbon allotrope) has been emerged as an amazing material of the 21 st century and attracted tremendous research interest due to its very exceptional properties. Still, rigorous research is being carried out on CNTs and CNTs based composites in almost all the spheres of science and engineering.

Carbon Nanotubes | Texpedia

RFID | Applications in Textile & Apparel Industry

RFID stands for Radio Frequency Identification Device. It is an automatic identification technology whereby digital data encoded in an RFID tag or smart label is captured by a reader using radio waves. In simpler terms, it is similar to bar code technology but uses radio waves to capture data from tags, rather than optically scanning the bar codes on a label. It does not require the tag or label to be seen to read its stored data. It is one of the key characteristics of the RFID system.

How RFID works?
RFID systems consist of three basic components:
1. A tag (also called a transponder)
2. An interrogator (a reader or a read/write device) and
3. A controller (a host).

Working mechanism of RFID | Texpedia

Wednesday, 5 August 2020

Graphene | An overview of graphene's properties

1. Introduction: Due to the relentless study of scientists, different kinds of unknowns are being known today and new wonders are being revealed. Today, People are starting to think that in this age of science, nothing is really impossible. It seems everything is within our hands. And that is being possible as a result of the ceaseless journey of rigorous researches on materials science. Likewise, graphene is one of the most remarkable discoveries of the 21st century. Graphene is a carbon allotrope consisting of tightly packed carbon atoms arranged in a 2D honeycomb lattice. It is a thin layer of graphite and this laminar material is usually used in pencil lead.  Although some scattered attempts on graphene can be traced back to about 1899, two physicists named Andre Geim and Konstantin Novoselov from the University of Manchester, brought a major breakthrough in the field of material science by discovering the new process of graphene production in 2004. 

Graphene | An overview of graphene's properties
Figure 1: Honeycomb lattice structure of Graphene 

Tuesday, 4 August 2020

Applications of Graphene | An overview

1. Introduction: Graphene is a carbon allotrope consisting of tightly packed carbon atoms arranged in a 2D honeycomb lattice. It is a thin layer of graphite and this laminar material is usually used in pencil lead. Graphene has successfully attracted the researchers’ attention due to its fascinating properties and is being used in a wide range of fields. Very surprisingly graphene is expanding its territory day by day and has been established as a miracle material. This wonder material is still under research and every new day unlocks a new scope of application.

Potential Applications of Graphene in Automobile Industry | Texpedia
Potential Applications of Graphene in the Automobile Industry

Friday, 5 June 2020

Research | Some Key Questions about research | Types of Research

Research is the systematic process of collecting and analyzing information to increase our understanding of a phenomenon under study.
a. The systematic investigation into and study of materials, sources, etc, in order to establish facts and reach new conclusions.
b. An endeavour to discover new or collate old facts etc by the scientific study of a subject or by a course of critical investigation. [Oxford Concise Dictionary]

Tuesday, 19 May 2020

Potentiality of chicken feathers as textile fabrics

Every year roughly 22 million tons of chicken feathers are being produced as the by-product of white meat used as human food in the whole world. It has been seen that many a time we are not concerned about the feathers after getting the chicken meat. Consequently, it is disposed of as the wastes and as it is chemically resistant, is typically incinerated or ends up in landfill or as low-grade animal feed. The feathers buried or incinerated pollute the environment and reduce soil fertility as well. This is one of the biggest challenges for a safe and sustainable environment.

Friday, 15 May 2020

Medical-functional clothing

Functional clothing is defined as that specifically designed and engineered to ensure predefined performance requirements and/or functionality for the user. Functional clothing can be broadly classified into following 4 groups- 

a. Protective clothing (Protech),
b. Sports-functional clothing (Sporttech),
c. Medical-functional clothing (Medtech),
d. Clothing for special needs.

Medical-functional clothing

The functional clothing that is used for healthcare is termed as medical-functional clothing. The typical characteristics of medical functional clothing includes absorbency (wound-dressing), air permeability (surgeons’ gowns, staff uniforms) and durability (pressure clothing). These types of functional clothing may be categorised into four separate and specialised areas of application, as follows:

a. Healthcare/hygiene clothing,
b. Surgical clothing,
c. Therapeutic clothing,
d. Intelligent functional clothing.

Classification of medical-functional clothing?


Areas of application
Kind of clothing
Healthcare/hygiene
Healthcare uniform
Clothing for nursing staff, nurse's uniform
Clothing for patients, scrubs, patient wear
Medical coats, tabards
Medical protective clothing (in isolation wards and intensive care units)
Protective gown for dentist
Protective gown for veterinary
Surgery
Surgical clothing
Surgeon's gowns, caps
Surgical cover cloths
Surgical hosiery
Surgical hosiery with graduated compression characteristics
Therapeutic clothing
Pressure clothing
Tubular elasticised net garment
Far infrared therapeutic clothing
1 nfrared shapewear
Anti-microbial underwear
Anti-irritant's underwear
Intelligent functional clothing
Cardiopulmonary resuscitation vest
EKG Vests for heart patients
Intelligent biomedical clothing
Intelligent clothing's physiological monitoring
Intelligent clothing in prehospital emergency care
Intelligent functional clothing for personal health records and medical information management

Manufacturing & Service Operations | Functions of Supply Chain

Supply Chain A  supply chain  is a network of individual functions within an organization that begins with the development of a stra...