PDF Elastomers: Types, Properties and Applications

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  1. What is Elastomer and its Uses?
  2. Elastomers Applications
  3. Associations

The temperature of the polymer also affects its elasticity. Elastomers that have been cooled to a glassy or crystalline phase will have less mobile chains, and consequently less elasticity, than those manipulated at temperatures higher than the glass transition temperature of the polymer.

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What is Elastomer and its Uses?

At ambient temperatures, rubbers are thus relatively soft Young's modulus of about 3 MPa and deformable. Most elastomers are rubbers, including both natural and synthetic varieties.

They are used mainly for the manufacture of tires and tubes. They are also used to produce goods such as hoses, belts, matting, gloves, toy balloons, rubber bands, pencil erasers, and adhesives. As a fiber, rubber called "elastic" is valuable for the textile industry. Ethylene propylene rubber EPR is useful as insulation for high voltage cables.

Thermoplastic elastomers are relatively easy to use in manufacturing processes, such as by injection molding. Polyurethanes are widely used in high-resiliency, flexible foam seating, seals, gaskets, carpet underlay, Spandex fibers, and electrical potting compounds. Using the laws of thermodynamics, stress definitions, and polymer characteristics, [1] ideal stress behavior may be calculated using the following equation:.

Elastomers Applications

These findings are accurate for values up to approximately percent strain. At that point, alignment between stretched chains begins to result in crystallization from noncovalent bonding. Although Young's Modulus does not exist for elastomers because of the nonlinear nature of the stress-strain relationship, a "secant modulus" can be found at a particular strain.

New World Encyclopedia writers and editors rewrote and completed the Wikipedia article in accordance with New World Encyclopedia standards. Show More. No Downloads. Views Total views. Actions Shares. Embeds 0 No embeds. No notes for slide. Elastomers 1. Some polymers which are elastomers include polyisoprene or natural rubber, polybutadiene, polyisobutylene, and polyurethanes.

Associations

The molecular structure of elastomers can be imagined as a 'spaghetti and meatball' structure, with the meatballs signifying cross-links. This is the temperature above which a polymer becomes soft and pliable, and below which it becomes hard and glassy. General-purpose Elastomers. Natural rubber occurs in almost plant species, but only a few of them are industrially Trans-polyisoprene Silicones Between different branches of wires, they are dense and protective.

Yet once they harden, they remain impervious to changes in most changes in temperature as well as stress like stretching or compressing. Show related SlideShares at end. WordPress Shortcode. Published in: Engineering. Full Name Comment goes here. Are you sure you want to Yes No. Abhishek Kr. Anukrity Chandra.

Park Systems Webinar: Rubber Elastomers 101

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