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Rubber presentation slide


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Rubber presentation slide

  1. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 21. Rubber gasket 21
  22. 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. 23. References List 1) Andrew Henderson, L. (2010 , May 8). 5 disadvantages of rubber flooring. Retrieved from 5973904.html?cat=30 2) Henry Snow, C. (2011 ). Physical and chemical properties of rubber. Retrieved from materials/Physical-and-Chemical-Properties.html 3) How rubber becomes a sustainable material. (2011). Retrieved from 4) Moore, J. (1950). Some chemical and physical properties of rubber. 1(1), Retrieved from 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 7) Rubber selection - a guide to outline properties. (2013). Retrieved from 8) Rubber flooring. (n.d.). Retrieved from 9) Rubbers & glass as engineering materials . (2013). Retrieved from 23