Vulcanisation.pptx

Vulcanization of rubber

1. Vulcanization Of Rubber ​ BHOOMI GUPTA BTECH CSE 2B GU-2022-4298

2. Drawbacks of rubber It is plastic in nature It is weak Large water absorption capacity Non resistant to non polar solvents It perishes due to oxidization Swell in organic solvents Little durability

3. Vulcanization Discovered by :- Charles Goodyear in 1839 To improve the properties of rubber, it is compounded with chemicals like sulphur or hydrogen sulphide etc, i.e - the addition of sulphur The process consists of heating raw rubber with sulphur to 100-140 degree Celsius Thus it stiffness the material by a sort of consequently preventing intermolecular movement of rubber springs 3

4. Process of vulcanization 4

5. Advantages of vulcanization 5 Have good tensile strength Have excellent resilience Possess low water absorption tendency Higher resistance to oxidation Resistant to organic solvent Easy to manipulate Slight thickness Low elasticity

6. Natural rubber vs vulcanized rubber 6 At Contoso, we believe in giving 110%. By using our next-generation data architecture, we help organizations virtually manage agile workflows. We thrive because of our market knowledge and great team behind our product. As our CEO says, "Efficiencies will come from proactively transforming how we do business."

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