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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.
Give the properties and applications of Bakelite. This is most common type of phenol formaldehyde. This is hard, thermosetting, dark coloured material. Its major properties
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consider a system at 290k for which the enery of the nth state is En=n(0.01ev) using 1+a+a square+ a cube+...=1/(1-a), find the value of partition function.find the constant C in P
Soft-Baking Soft-baking is the step during which almost all of the solvents are separate from the photo resist coating. Soft-baking plays a very critical role in photo-imaging.
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What is Spheroidsing Spheroidsing is the method that applies more to the hypereutectoid steels (above 0,8% C). The process includes heating the metal to between 600oC and 65
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will u provide chemical properties of nitroparaffins and its block diagram for preparation of nitroparaffins?
First find out the requirement of alcohol for your lab in consultation with the teacher or from records of previous years. Then fill-up F-22 form or simply write an application for
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