CHECK THESE SAMPLES OF Elasticity of Rubber
“rubber elasticity involves flexible molecular chains which need to be interconnected to prevent gliding.... rubber elasticity necessitates a high temperature in order to ensure the adequate mobility of the molecular chains.... rubber elasticity's entropic nature can be attributed to the large number of possible configurations for the molecular chains.... As discussed earlier, rubber elasticity requires high temperature and it promotes mobility of molecular chains....
3 Pages
(750 words)
Coursework
Results and Discussion The stress-strain curves for the various test specimens are as follows: Figure 1: Stress-Strain Curve of rubber (Poly-Isoprene) Figure 2: Stress-Strain Curve of Acetate (Cellulose Acetate) Figure 3: Stress-Strain Curve of PE (Polyethylene) Figure 4: Stress-Strain Curve of PP (Polypropylene) S.... The testing was done on four different specimens: PE (polyethylene – from a shopping bag), PP (polypropylene – from plastic folder), rubber (natural rubber – from a rubber band) and Acetate (cellulose acetate – from an overhead transparency)....
4 Pages
(1000 words)
Essay
They look like simple and homogenous made materials, but actually they are mixtures of different kinds of materials such as carbon black, rubber, inorganic and organic materials.... The body and sidewalls gives the shape of the tire and the rubber covered beads embedded with metals and wires holds the wheel tires.... It can be measured through the difference of the top of the rubber tread with the bottom of the deepest grooves of the tire....
6 Pages
(1500 words)
Assignment
They are black donut like forms generally made up of rubber and other complex materials.... Tires are products of engineering technology mostly made up of rubber.... rubber compounds come from polymers such as Natural rubber, Isoprene rubber, Styrene Butadiene and others.... Mostly, natural rubber coming from rubber trees are the preferred materials used to manufacture tires....
6 Pages
(1500 words)
Assignment
During vulcanization, or curing, of rubber, individual polymer molecules are linked to other polymer molecules by polysulphide... Natural rubber occurs as a milky emulsion or latex in the sap of a number of plants, but can be produced synthetically when units of Isoprene (a hydrocarbon diene monomer) are polymerised (Wikipedia, 2006) in the presence of a Ziegler Natta catalyst.... ynthetic rubber is also formed during the polymerisation of certain monomers or by co-polymerisation of two different monomers....
5 Pages
(1250 words)
Lab Report
The paper "Using Crumb rubber as Lightweight Aggregate in Structural Concrete" describes that the Portland concrete mixes that utilize the waste tires by the volume of the aggregates of sand in different proportions of the replacement.... The research will first focus on the quantity of the mineral content that can be replaced using the waste tires and the manner in which the properties of the concrete are affected by the introduction of the crumb rubber into its contents....
36 Pages
(9000 words)
Lab Report
This causes the rubber to possess memory.... Natural rubber's repeating unit is isoprene.... This material is found in the bark of the rubber tree and has been used by humans for centuries.... Most of the rubber used today is a synthetic variety called styrene-butadiene rubber.... (Doi, 1993, 119-24) Natural rubber played an important role in the creation of synthetic rubber because of isoprene's presence....
9 Pages
(2250 words)
Coursework
This report "Construction Materials: Their Nature and Behavior" discusses the properties of wood that are both unique and independent in their axes that are mutually perpendicular.... While the tangential axis is perpendicular to the grain, the longitudinal axis is parallel to the grain.... hellip; The radial axis is also normal to annual rings whereas the tangential axis is tangential to the annual rings....
8 Pages
(2000 words)
Report