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{Rubber in Industry}

{Rubber in Industry}. By Mamdouh Alzahrani. Introduction. Rubber is 100% natural product harvested from trees. Process of the extraction Where Rubber is found?. Brief History…. The Ancient Olmecs. Charles Goodyear. Types of Rubber in industry. Synthetic Rubber: A) Neoprene

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{Rubber in Industry}

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  1. {Rubber in Industry} By Mamdouh Alzahrani

  2. Introduction • Rubber is 100% natural product harvested from trees. • Process of the extraction • Where Rubber is found?

  3. Brief History… • The Ancient Olmecs. • Charles Goodyear.

  4. Types of Rubber in industry • Synthetic Rubber: A) Neoprene B) BUNA- S C) BUNA- N • Thiokol • Volcanized Rubber

  5. Areas of manufacturing • Air planes • Cars • Toys • Furniture • Clothes • Sport tools • Accessories • Weapons • Electrical equipment and wires. Etc….

  6. Advantages VS Disadvantages ADVANTAGES: • Cheap in general ( few special types are expensive) • Good abrasion resistance • Soft and stretchy (can be very hard Ex. Air planes wheels) • High Chemical and heat resistance (up to 400F ) • Can be mixed with too many other components.

  7. Continue… DISADVANTAGES: • Low-cost latex rubber products generally shrink. Making molds with latex rubber is slow and time-consuming. Making a brush-on latex mold takes ten days or more. Latex molds are generally not suitable for casting resins. • Has an offensive odor. Polysulfide rubber must be mixed accurately by weight or they will not work. Polysulfide rubber costs higher than latex. • Silicones are generally high in cost. They are also sensitive to substances, and do not have a long library life. • As silicone rubber has the best release properties, urethane rubber has the worst release properties and will adhere to just about anything. Limited shelf life after opening – remaining product may be affected by ambient moisture in the air.

  8. An innovation.. • Airless Tires! No more flat tire! • http://www.youtube.com/watch?v=Pja6vKnEV4E

  9. Bibliography • Robert T. Morrison, Robert N. Boyd, Organic Chemistry, 6th Edition, Publisher Prentice Hall (January 17, 1992) • BBC/OU Open2.net – The World Around Us – Lost at sea – Explore the science – Rubber & vulcanization, link : open2.net/sciencetechnologynature/worldaroundus/explore-rubber_and_vulcanisation.html • http://www.rubbermoldcompounds.com/why-use-rubber.htm • http://www.chemistrylearning.com/rubber/ • http://www.mongabay.com/10rubber.htm • http://www.nndb.com/people/411/000050261/

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