Vulcanization, chemical process by which the physical properties of natural or synthetic rubber are improved; finished rubber has higher tensile strength and resistance to swelling and abrasion, and is elastic over a greater range of temperatures. Polymers. At high temperatures, $$(>\ 335\ K)$$, softness increases. It was discovered in 1839 by Charles Goodyear. Answer. The process involves the formation of cross-links between long rubber molecules so as to achieve improved elasticity, resilience, tensile strength, viscosity, hardness and weather resistance.

Answer:Vulcanisation is a chemical process for converting natural rubber or related polymers into more durable materials by the addition of sulphur or other equ… November 22, 2019 Nishtha Bhattacharya. Answer : Vulcanization of natural rubber is done to improve upon all these properties. Natural rubber has the following drawbacks: 1) It is soft and sticky at room temperature. Vulcanisation is a chemical process for converting natural rubber or related polymers into more durable materials by the addition of sulphur or other equivalent curatives or accelerators.

Video Explanation.

Natural rubber becomes soft at high temperature (> 335K) and brittle at low temperatures.(<283K). Class 12th NCERT - Chemistry Part-II 15.

Vulcanization of natural rubber is done to improve upon all these properties. Discuss the main purpose of vulcanisation of rubber. Discuss the main purpose of vulcanization of rubber. To improve physical properties of rubber, vulcanisation is carried out.

Vulcanization is a chemical process in which the rubber is heated with sulphur, accelerator and activator at 140–160°C. Vulcanization. These additives modify the polymer by forming cross-links between individual polymer chains. In this process, a mixture of raw rubber with sulphur and appropriate additive is heated at a temperature range between 373 K and 415 K. This is a slow process,therefore some additives …

In this process, a mixture of raw rubber with sulphur and appropriate additive is heated at a temperature range between 373 K and 415 K. Discuss the main purpose of vulcanisation of rubber.