ISBN: - 978-93-88936-09-5 Members of Apocyanaceae like Cryptostegia grandiflora is the source of palay rubber. The plants are native of Madgascar near the African coast. 1.7 (H) Dandelion rubber The dandelion plant (taraxacum koksaghza) has tuberous roots, from which latex is obtained for the manufacture of rubber. 1.8. USES OF NATURAL RUBBER Natural Rubber is a versatile material used in the manufacture of more than 50000 varieties of products ranging from toy balloons to giant tyres produced in the country. It is obtained from rubber plantations and natural rubber is also used for precision and it could be used in a wide array of applications with synthetic rubbers. Because of its elasticity, resilience and toughness, natural rubber is the basic constituent of many products used in the transportation, industrial, consumer, hygienic and medical sectors. Of these major end-use markets for rubber, transportation is by far the largest single sector, with tyres and tyre products accounting alone for over 50 percent of Natural Rubber consumption. Truck and bus tyres would represent the largest single outlet for Natural Rubber, followed by automobile tyres. In General, rubber goods are used for commercial and industrial purposes. These nontyre rubber items include industrial products for example, transmission and elevator belts, hoses and tubes, industrial lining, and bridge bearings. Consumer products (included golf of football balls and other recreational and sports goods, erasers, footwear and other apparel); Articles for use in the medical and health sector are, condoms, catheters and surgical gloves) as well as seismic materials. For instance, over 500 and 2500 building are respective fitted with seismic rubber bearing in China and Japan? Latex articles such as gloves, threads, adhesives and moulded foams could be included in different categories in terms of end-use. Rubber is a yellowish, elastic, amorphous material obtained from the latex or milky sap of various tropical plants like the rubber tree. This latex is vulcanized, pigmented, finished and modified into various products like electronic insulation, elastic bands, tyres, hoses, gaskets and containers. Rubber is also known by its scientific name “caoutchouc” or “India rubber”. 1.8 (A) Transportation Rubber is an essential element for all forms of modern transportation. It is used for making tyres, tubes, engine mountings, brakes, radiator, hoses, oil seals, beadings, matting’s, linings, cushions etc., necessary for the automobile industry. Rubber is indispensable in other 21
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