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Explain polymerisation vinyl chloride and its applications.
PVC and its applications - It is acquired from polymerisation of vinyl chloride in the presence of a catalyst as peroxides at about 500C. The properties are as mechanical strength, flexibility, porosity, electrical and moisture absorption properties can be changed through adding certain materials. PVC has fine mechanical and electrical properties. This is hard and brittle. It resists flame, most solvents and sunlight. It is non-hygroscopic. PVC is widely used as insulation and jacketing material for cables and wires. PVC films, sheets and tapes are used as insulation for conduit pipes and dry batteries.
The property of a material by which it can be drawn into wires is called as Ductility is the only property of a material by which it can be drawn into wires.
Ask question #Minimum 100 words accepted.hardness of bore water is less than that of sea water-justify
Refractoriness under load (RUL): This represents the resistance of a refractory material to the combined efforts of heat and load. RUL is the temperature at which the deformation
Q1 What is wrong with each of the following attempts to write an electron configuration? Justify your answer with suitable explanation. (a) 1s22s3 (b) 1s22s22p23s2 (c) 1s22s23s2 (d
the pilling bedworth ratio of iron is 1.77 why it not stable as per rulr
A company is using a piece of equipment which originally cost $30,000. The equipment has been in use for 5 years, and now has a net realizable value of $6000. At the time of instal
Bakelite is a material based on the thermosetting phenol formaldehyde resin. Produced by the reaction under heat and pressure of phenol (a toxic, colourless crystalline solid) and
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INTRODUCTION : Here you were introduced to the essential features of a good laboratory. Since no two labs are alike, it is important to know the design and organisation of the lab
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