What is a Vulcanizate?
What is a Vulcanizate?
vulcanizate in British English or vulcanisate (ˈvʌlkənaɪˌzeɪt) noun. a substance that has undergone vulcanization.
What is vulcanization explain with example?
Vulcanization is a chemical process in which the rubber is heated with sulphur, accelerator and activator at 140–160°C. 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.
What is vulcanization Class 12?
Vulcanization is the process of introducing sulfur atoms cross-links between the polymeric chains. It is known to improve the thermo-stability and elasticity of the natural rubber. The stiffness of vulcanized rubber depends on the quantity of added sulphur.
Which of the following is the product of vulcanisation?
VULCANIZATION. Vulcanization gives rubber its characteristic elastic quality. This process is carried out by mixing the latex with sulphur (other vulcanizing agents such as selenium and tellurium are occasionally used but sulphur is the most common) and heating it in one of two ways.
Is vulcanization a word?
The process of treating rubber so it can be used to make things like car tires is vulcanization. Before vulcanization, rubber is soft and pliable. After this treatment, it becomes strong and hard. The origin of the word vulcanization provides a clue about its meaning: it comes from Vulcan, the Roman god of fire.
How do you Vulcanize?
The first process, called Pressure Vulcanization involves heating the rubber with sulfur under pressure, with a temperature of 150C. The second process, called Free Vulcanization, simply involves passing very hot steam or air through the rubber.
Who invented vulcanisation?
Charles Goodyear
Vulcanization/Inventors
In its simplest form, vulcanization is brought about by heating rubber with sulfur. The process was discovered in 1839 by the U.S. inventor Charles Goodyear, who also noted the important function of certain additional substances in the process.
What is vulcanization Class 6 answer?
Vulcanization is the process carried out for the production of rubber. In this process, raw rubber is heated with a mixture of sulphur and an appropriate additive, at a temperature range of 61.85Unknown node type: sup Unknown node type: sup C to 141.850C for three to four hours.
What do you mean by elastomer?
An elastomer is a polymer with viscoelasticity (i.e., both viscosity and elasticity) and with weak intermolecular forces, generally low Young’s modulus and high failure strain compared with other materials. Rubber-like solids with elastic properties are called elastomers.
