Rubber presentation slide
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The document discusses properties and applications of rubber. It begins by introducing the group members and providing an overview of natural and synthetic rubber. It then discusses various properties of rubber including its flexibility, elasticity, water resistance and insulation properties. Various applications of rubber are also presented, including use in rubber flooring, adhesives, bearings pads, and expansion joints. The document concludes that both natural and synthetic rubber have many uses in construction and other industries.
Rubber presentation slide
- 1. RUBBER 1 Group Members: CHEAH XING NAN 0314326 REUEL ERNYI 0315150 TEO JUNTANG 0314667 YAP HUE ENG 0314857 YAP ZHI XIN (GL) 0314542
- 2. Introduction Rubber is a natural polymer of Isoprene (usually cis- 1,4-polyisoprene) Rubber is also known as an elastomer. It can be defined as a sticky, elastic solid Produced from a milky liquid known as latex Natural rubber Produced artificially Synthetic rubber. 2
- 3. Types of Rubber Natural Rubber Latex Coagulated by weak acetic acid after removing the impurities. It is then passed through rollers to get creep rubber. It is then processed to get commercial rubber compounds. Synthetic Rubber General purpose synthetic rubber Stryene Butadiene Rubber (SBR) Special purpose synthetic rubber Have special qualities to suit different purposes Neoprene 3
- 4. Characteristics of rubber Flexible, Elastic Not transparent Water proof/repellence Hard, Strong Insulate electricity Acid & alkaline resistant Doesn’t conduct to heat 4
- 5. Properties Physical Properties Non reactive Chemically Resistant to many fluids including many water, weak acids & alkalis Non conductive Poor conductor of heat & electric Elastic Tough Electric resistant Electric insulator 5
- 6. Chemical Properties Polymers Consists of isoprene molecules fitted together in loosed chains Consisting long chains of one or more type of molecules Contain long chains of hydrogen and carbon molecules Rubber go through vulcanization through adding sulfur which result in a hard, durable material with great mechanical properties. This create a chemical links between the chains. 6
- 7. Functions Sustainability Rubber has many uses that makes rubber & recycled rubber products a valuable sustainable material. Rubber is being used as repairing material in United States Pave roads & bridge Surface of roads are upgraded with ground rubber material Playgrounds with rubber flooring Not only safer but its own aesthetic value Used & re-purposed for protective gear Create fibers for clothing & outerwear Lower the budget in construction 7
- 8. Green Materials/ Eco Friendly Materials Rubber is produced naturally which is a definite green material as rubber recycling has become more common. There is market demand which keeps vast amounts of rubber out of landfills Importance of Recycled Rubber Reclaiming & recycling rubber uses less energy than producing a new rubber. Recycling rubber reduces the demand for new natural rubber which may keep rubber tree plantations from expanding into sensitive tropical ecosystems. Keeping rubber out of landfills protects environments as well as human health Tire fires in landfills will cause pollution & pose a significant safety hazard. 8
- 9. AestheticValue Can be obtained in different types of color Have great eye appeal Easily shaped, hence allow designer to create seamless installations More safety Comfortable Hygienic Can also be engineered with antimicrobial properties 9
- 10. Durability Vulcanization Forming cross-link between polymer chains Less sticky, more durable (Vulcanized rubber) Tires, shoe soles, hoses, conveyer belts & hockey pucks (Hard vulcanized rubber) Bowling balls, saxophone mouth pieces Can be called ebonite & vulcanite Nature of the rubber Can be compressed & stressed NON reactive to acid & alkaline Heat & electrical insulator 10
- 11. 11 ADVANTAGES DURABILITY SOFT FIRE & BURN RESISTANT SOUND ABSORBER WATER RESISTANT • Strong, rough & resilient against a variety of conditions • Can last longer with proper care •Nonporous • Soft to touch • relieve stress fatigue associated with standing or walking for long periods • Safety of children • Resistant to burns • Non toxic • Will not release noxious fumes into the air in case of fire. • Depends on the thickness • Can act as a powerful sound barrier. ENVIRONMENTAL FRIENDLY • Recyclable • Better choice as environmental impact is concerned
- 12. 12 DISADVANTAGES EXPENSIVE • Rubber materials have high initial cost. HIGH MAINTENANCE •Dirt will builds up easily on rubber •Needed to cleaned it often to be kept clean ODOUR •Have a very distinct odor that isn't pleasing to everyone. •Will dissipate in time in outdoor. STAINING • Resistant to most staining agents •Detergent & other abrasive cleaning liquid which may discolor surface. • Grease will have a drastic negative effect if not wiped up.
- 13. Application Rubber flooring Used to a large extent in public and industrial buildings because of their good wearing qualities, resiliency (i.e., elasticity) and noise insulation. Made up of pure rubber mixed with fillers, such as cotton fibre, granulated cork or asbestos fibre and the desired colouring pigments. Manufactured in the form of sheets or tiles, in a variety of patterns and colours. 13
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- 15. Rubber Adhesive Most all rubber-based glues and bonding agents are made of rubber mixed with other compounds. Suited as a bonding element because of its flexibility. Some types of bonding compounds made with rubber are used as sealants. However rubber adhesive is extremely flammable. It is not suitable for bonding in high temperature situations It is generally used where dampness is an issue because of its water resistance. might be damaged by other solvents, such as oil and grease, and not suitable for bonding heavy pieces. 15
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- 17. Bearings pad Used extensively in standard construction applications, buildings & structural steel bearings applications. Synthetic fibres are added to the base rubber compounds to create an internal stiffening like steel reinforced concrete. This mesh structure delivers enhanced tensile & compressive strength stiffness tear resistance durability 17
- 18. Rubber bearing pads has been used in: Bridge bearing masonry pads Handrail bearing pads Pads between steel beams, girders, grates & columns Pads between bridge and roof beams and substructures Shock and vibration isolation Heavy equipment mounting pads Railway tie pad applications Pads underneath concrete vaults 18
- 19. Expansion joints A mid-structure separation which designed to relieve stress on building materials caused by building movement by: Thermal expansion & contraction caused by temperature changes, Sway caused by wind, Seismic events It marks a gap through all building assemblies including walls, floors, decks, planters & plazas, etc. because the joint bisects the entire structure. Used to bridge the gap & restore the building assembly functions while being able to accommodate the expected movements. 19
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- 21. Rubber gasket 21
- 22. Conclusion Both natural & synthetic rubber is not widely use in the construction industry. However, it is mainly used in household & industrial products Therefore, rubber industry have a bright future for rubber industry. 22
- 23. References List 1) Andrew Henderson, L. (2010 , May 8). 5 disadvantages of rubber flooring. Retrieved from http://voices.yahoo.com/5-disadvantages-rubber-flooring- 5973904.html?cat=30 2) Henry Snow, C. (2011 ). Physical and chemical properties of rubber. Retrieved from http://www.booksupstairs.com/Wood-and-other-organic-structural- materials/Physical-and-Chemical-Properties.html 3) How rubber becomes a sustainable material. (2011). Retrieved from http://www.doityourself.com/stry/how-rubber-becomes-a-sustainable-material 4) Moore, J. (1950). Some chemical and physical properties of rubber. 1(1), Retrieved from http://iopscience.iop.org/0508-3443/1/1/303 5) P.C,V. (2006). Building materials. (2nd ed., pp. 182-184). New Delhi: Prentice Hall of India. 6) Rubberform load bearing rubber. (2013). Retrieved from http://www.rubberform.com/products/industrial/rubberform-load-bearing-rubber 7) Rubber selection - a guide to outline properties. (2013). Retrieved from http://www.merl-ltd.co.uk/2003_materials/rubber12.shtml 8) Rubber flooring. (n.d.). Retrieved from http://www.theconstructioncivil.com/2010/01/rubber-flooring.html 9) Rubbers & glass as engineering materials . (2013). Retrieved from http://www.aboutcivil.org/Rubbers-and-Glass.html 23