First Stop: Almost every tire begins with natural rubber; rubber is obtained from the Para rubber tree (Hevea brasiliensis) trees grown in the ASEAN region of Thailand, Indonesia, Malaysia (Shuhaimi, Othman, Ismail, & Sasidharan, 2013). Mostly all rubber comes from these areas because the tropic Rainforest climate is conducive for growing rubber trees. The rubber is gathered from the trees by tapping them, a metal half straw is placed in the tree and a white milky substance is extracted. This is
Throughout history, rubber has been one of the most used raw materials in the world. It has had a significant role in global and economic trade. Countries such as India and Sri Lanka have been greatly influenced by the production of rubber in the eighteenth and ninetieth century. In general, the production of rubber benefited the world significantly, especially Great Britain as it allowed them to make a profit and to obtain a sufficient amount of wealth. This was accomplished through the means of
The Rubber Tree (Hevea brasiliensis) Rubber is a valuable commodity in today's economy. A vast number of products are made from it, including washers, gloves, gaskets, tubing, waterproof clothing, toys, erasers, belts, elastics, bottle stoppers, and insulation for electrical wiring. The largest single use of rubber is in the manufacture of pneumatic tires which consumes 60% to 70% of the total world production each year. Demand for rubber has grown remarkably since the beginning of the industrial
Synthetic and Natural Rubber Abstract Rubber is an important resource with a wide variety of applications. It can be obtained naturally from the rubber tree, Hevea brasiliensis. It can also be synthesized from petroleum and natural gas. Both natural and synthetic rubbers have their own advantages and disadvantages. Natural rubber is made up the linear chain polymer, cis-l,4-polyisoprene. Styrene-butadiene rubber (SBR) is the most common synthetic rubber. It is a random copolymer of styrene
By the year 2060, rainforests will be but a dream (facts about the rainforest). The rainforests are the lungs of Earth providing 40% of the world’s oxygen yearly. The world needs to preserve the rainforests because without them our ecosystem will suffer. The rainforests provide the western world with one out of four of the prescription drugs sold today and many valuable resources (contribution of rainforests to mankind). The balance of the ecosystem, water cycle, and carbon dioxide levels depend
The formation of polymer is through a process called polymerization. Polymers found naturally are protiens, DNA, RNA, latex, rubber, hair, spider silk, cellulose, wood and many more. Polymers manufactured are called synthetic polymers. They are formed by natural polymers such as Rayon from cellulose , Nylon from synthetic spider silk, rubber and plastics form rubber tree latex and cellulose, etc. They mostly look like spaghetti. MOLECULAR WEIGHT : Molecular masses of polymers are not fixed they
The village of Umuofia in the late 19th century to the turn of the 20th century was the setting for Achebe’s book, Things fall apart. The Igbo people were a superstitious people who centered a good portion of their lives harvesting yams. In fact, Ondo, Kevers, & Dommes (2013) stated that “yams (Dioscorea spp.) are tuber crops used as staple food in Africa because of their nutritional value and that the genus Dioscorea belongs to the Dioscoreaceae family and comprises approximately 600 species, mainly