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Torn latex rubber dry suit wrist seal. Natural rubber is reactive and vulnerable to oxidization, but it can be stabilized through a heating process called vulcanization. Vulcanization is a process by which the rubber is heated and sulfur, peroxide, or bisphenol are added to improve resistance and elasticity and to prevent it from oxidizing.
Balatá is a natural material, specifically a latex, [1] extracted from the Manilkara bidentata tree (also known as bulletwood or balatá) which is native to northern South America, Central America, and the Caribbean. This latex is used for various industrial applications, primarily in the production of rubber-like materials. [2] [3]
Currently, rubber plantation trees are generally harvested for wood after they complete the latex producing cycle, when they are 25 to 30 years old. When the latex yields become extremely low, the trees are then felled, and new trees are usually planted. This makes rubberwood 'eco-friendly' in a way that the wood is harvested from a renewable ...
Palaquium gutta. Gutta-percha is a tree of the genus Palaquium in the family Sapotaceae, which is primarily used to create a high-quality latex of the same name. The material is rigid, naturally biologically inert, resilient, electrically nonconductive, and thermoplastic, most commonly sourced from Palaquium gutta; it is a polymer of isoprene which forms a rubber-like elastomer.
The Olmec people of Mesoamerica extracted and produced similar forms of primitive rubber from analogous latex-producing trees such as Castilla elastica as early as 3,600 years ago. The rubber was used, among other things, to make the balls used in the Mesoamerican ballgame. [7] Early attempts were made in 1873 to grow H. brasiliensis outside ...
Rubber tapping is the process by which latex is collected from a rubber tree. The latex is harvested by slicing a groove into the bark of the tree at a depth of one-quarter inch (6.4 mm) with a hooked knife and peeling back the bark. Trees must be approximately six years old and six inches (150 mm) in diameter in order to be tapped for latex.
An alternative source of latex that is hypoallergenic, unlike the normal Hevea rubber, can also be extracted. [4] While Castilla elastica was the most widely used rubber source of Mesoamericans in pre-Columbian times, guayule was also used, though less frequently. [5] [6] The name "guayule" derives from the Nahuatl word ulli/olli, "rubber". [7]
Natural rubber latex is a cloudy white liquid collected by cutting a thin strip of bark from the tree and allowing the latex to be secreted into a collection cup over a period of several hours. After collection, the latex is treated with ammonia to prevent coagulation and is transported to a processing facility for concentrating and compounding.