Properties of teflon

Properties of teflon Polytetrafluoroethylene or PTFE (more commonly known as Teflon) is a particularly versatile ivory-white and opaque plastic fluoropolymer; it is made by the free-radical polymerisation of many tetrafluoroethene molecules, and is suitable for a wide range of applications in industries as diverse as aerospace, the food and drink industry, pharmaceuticals and telecoms. Produced by … Read more

Properties of soaps and detergents

Properties of soaps and detergents Soap – Characteristics And Uses Soaps are excellent cleansing agents and have good biodegradability. A serious drawback which reduces their general use, is the tendency for the carboxylate ion to react with Ca+ and Mg+ ions in hard water. The result is a water insoluble salt which can be deposited on … Read more

Properties of polyvinyl chloride

Properties of polyvinyl chloride What is Polyvinyl Chloride (PVC), and What is it Used For? Polyvinyl Chloride (PVC) is one of the most commonly used thermoplastic polymers in the world (next to only a few more widely used plastics like PET and PP). It is a naturally white and very brittle (prior to the additions of plasticizers) plastic. PVC has been around longer … Read more

Urban spheres of influence and rural urban fringe

Urban spheres of influence and rural urban fringe Urban spheres of influence Urban spheres of influence reflect centre-to-hinterland relationship, compared with the non-central region, the centre assumes more complex economic functions, and provides more economic activities. Famous theoretical contributions to this research field are the Central Place Theory (Christaller, 1933), the extension to the Central … Read more

Quality of life, life expectancy, literacy, standard of living and migration in India

Quality of life, life expectancy, literacy, standard of living and migration in India Human development—a comprehensive approach Human development is a process of enlarging people’s choices. But human development is also the objective, so it is both a process and an outcome. Human development implies that people must influence the processes that shape their lives. … Read more

Planning commission and national development council

Planning commission and national development council Planning commission The Planning Commission was an institution in the Government of India, which formulated India’s Five-Year Plans, among other functions. Background Rudimentary economic planning, deriving from the sovereign authority of the state, was first initiated in India in 1938 by Congress President and Indian National Army supreme leader … Read more

National and state minority commission

National and state minority commission Constitution of India doesn’t define the word ‘Minority’ but has used the word minorities considering two attributes religion or language of a person. For minorities Constitution of India has envisaged a number of rights and safeguards. To provide enough equality and to dwindled the discrimination, makers have spelt out various … Read more

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