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- Untreated latex consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds. Vulcanisation is the process by which the latex is heated with sulphur to create molecular crosslinks between the long rubber molecules. Increasing the sulphur content increases its hardness and tensile strength.
www.nature.com/articles/s41415-023-5735-7A brief history of the development and use of vulcanised ...
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Jul 24, 2021 · Vulcanization or vulcanisation (British) is a process of hardening rubber using chemicals and (usually) heat. Originally, vulcanization described the treatment of natural latex rubber with heat and sulfur. While this remains the most common type of vulcanization, the process also applies to synthetic rubber and may involve other chemicals. History
For latex dipped goods, vulcanization is conducted at relatively low temperatures (60–120 °C) and requires no pressure as the latex is in fluid form and flows to take the final shape of the former and mold.
Background. A latex is a colloidal suspension of very small polymer particles in water and is used to make rubber. Natural. Dipped goods (medical and surgical items, household and industrial gloves, boots, and balloons) utilize more than half of all natural latex consumed in the United States.
Apr 25, 2017 · The process of hardening rubber is known as vulcanization. This method was discovered accidentally in the early 19th century and then developed in order to find some way to make latex, the natural excretion of rubber trees, more rigid and resistant to abrasion.
Apr 28, 2023 · Vulcanisation is the process by which the latex is heated with sulphur to create molecular crosslinks between the long rubber molecules. Increasing the sulphur content increases its hardness...
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. 1. Pressure vulcanization.
The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called "tapping". The latex then is refined into rubber ready for commercial processing. In major areas, latex is allowed to coagulate in the collection cup.
