We also produce molds and un-vulcanizing splicing film in many different materials. The NorMec machines are the most advanced and reliable machines on the market.
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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.
- The Editors of Encyclopaedia Britannica
Vulcanization (British English: vulcanisation) is a range of processes for hardening rubbers. [1] The term originally referred exclusively to the treatment of natural rubber with sulfur , which remains the most common practice.
Vulcanization is the process to chemically convert a polymer compound (rubber) to an elastic and final end-use product (i.e., in its final shape). The process is dependent on time, temperature and the processing method.
This chapter is an overview of the science and technology of vulcanization. Emphasis is placed on general-purpose “high-diene” rubbers; for example, natural rubber (NR), styrene-butadiene rubber (SBR), and butadiene rubber (BR), vulcanized by sulfur in the presence of organic accelerators.
- History
- How Vulcanization Works
- Effects of Vulcanization
- Uses of Vulcanized Rubber
- References
Many plants produce latex, including the rubber tree (Hevea brasiliensis), bananas, milkweeds, and dandelions. Latex contains the polymerpolyisoprene, which is elastic and waterproof. Archeological studies show the Mesoamericans used rubber for balls and waterproofing textiles and containers. Charles Marie de La Condamine presented samples of Ameri...
Vulcanization hardens or cures rubber by cross-linking its polymer strands. In Goodyear’s process, heat supplies the energy to connect the carbon atoms in polyisoprene molecules by sulfur bridges. The number of sulfur atoms forming the chain between molecules influences the final properties of the vulcanized rubber. For example, short rubber crossl...
Vulcanization changes the chemical composition of rubber, so of course it alters the material’s chemical, physical, and mechanical properties. Here are some of the effects: 1. Shrinkage: Vulcanization shrinks rubber, as cross-linking draws the polymer chains closer together. 2. Irreversible: The effects of vulcanization are permanent and cannot be ...
Today, most rubber is vulcanized. Vulcanized rubber finds use in vehicle tires, shoe soles, erasers, toys, shoe soles, wet suits, hoses, and belts.
Akiba, M. (1997). “Vulcanization and crosslinking in elastomers”. Progress in Polymer Science. 22 (3): 475–521. doi:10.1016/S0079-6700(96)00015-9Engels, Hans-Wilhelm; et al. (2011) “Rubber, 9. Chemicals and Additives”. Ullman’s Encyclopedia of Industrial Chemistry. Wiley-VCH, Weinheim. doi:10.1002/14356007.a23_365.pub3Hosler, D.; Burkett, S.L.; Tarkanian, M.J. (1999). “Prehistoric polymers: Rubber processing in ancient Mesoamerica”. Science. 284 (5422): 1988–1991. doi:10.1126/science.284.5422.1988Mark, James E.; Erman, Burak (eds.) (2005). Science and Technology of Tubber. ISBN 0-12-464786-3.Vulcanisation is the irreversible process of curing elastomers. Originally, vulcanisation referred exclusively to the treatment of natural rubber with sulphur, but this has grown to include the treatment of synthetic rubbers with other curatives (such as peroxide and metal oxides).
Vulcanization is a chemical process that involves the cross-linking of polymer chains in rubber using sulfur or sulfur-containing compounds, which improves the material's elasticity, strength, and durability.
