Linear low-density polyethylene

Assignment 3 Q1: how does the industry work? Polyethylene is a petrochemical product that has been widely used in the plastic manufacturing, such as packaging, trash bins, and food containers. It is produced mainly from the polymerization process of ethylene, which is an ingredient derived from cracking crude oil and natural gas. There are three types of polyethylene: low-density polyethylene (LDPE); high density polyethylene (HDPE); and low linear density polyethylene (LLDPE), and each of them has distinctive

process of becoming privatized by the Argentine government, Dow Chemicals saw the acquisition of this company as a golden opportunity to become the leading polyethylene player in Latin America. Dow Chemical’s was already a major player in the chemicals (ethylene), plastics (polyethylene), and agricultural products industries holding position as a low-cost producer. Breaking each segment of their business down into these categories respectively, Dow Chemicals was able to generate annual revenues of 20

Pollution is a serious global issue that has been occurring for as long as humans have inhabited the planet. There are many different varieties of pollution, as well as an abundance of materials, both natural and synthetic, that the earth has been contaiminated with. Shifrin ( 2005), states: “To date, wastes remain a fact of life and there are only three places to dispose of wastes-air, water, or land. Waste management always involves tradeoffs.” (p. 676). Even though Shifrin is correct in his

Manufacturing Cycle and Environmental Impact The most common form of polyethylene is petroleum based or olefins based; as before mentioned polyethylene compounds have a wide commercial applicability and are made from non-renewable resources (Harding, Dennis, von Blottnitz, Harrison, & S.T.L., 2007). Its manufacturing processes are regarded as energy intensive and release significant amount of CO2 and heat into the atmosphere (Broderick, 2008). Next a little more detailed description of polyethylene’s

MATERIALS CHRACTERIZATION: 1. Tensile Testing: Tensile test for composites was conducted according to ASTM D 638 - 99, with a Universal Testing Machine (Zwick Co.). Tensile test was carried out at crosshead speed of 50mm/min at room temperature. 2. Izod Impact Testing: In order to measure the work of fracture (WOF), the Izod impact test was carried out.Impact bars were obtained by cutting specimens in rectangular shapes. These rectangular specimens are of thickness 3 mm, width 12 mm and length

Polymer is a compound consisting of long-chain molecules, each molecule made up of repeating unit connected together by a covalent bond. Most polymers are based on carbon and are therefore considered organic chemicals. Groover (2011) suggests that ?the word polymer is derived from Greek, poly and meros, meaning many and parts, respectively. Some scientists prefer to use the word macromolecules or large molecules, instead of polymer?. The polymers are created by connecting many small molecules forms

(PBB) because it was being privatized by the government of Argentina. PBB, which is located in Bahia Blance, is a major producer of both ethylene and polyethylene in Argentina. Dow sees this as a very big opportunity for the company to expand its market, utilize its resources and invest on a company that will eventually become the leading polyethylene player in Latin America. Dow’s vice president of business development for Latin America, Oscar Vignart, and Luis Marcer, CFO of Dow Química

of polyethylene (PE), high density and linear low density polyethylene. [1] The production process involves the transportation of the liquid ethylene feedstock, via pipeline, to the plant site followed by the production of various PE resins (pellet form). These PE pellets are then sold to consumers for use in common applications such as bottles for milk and other non-carbonated drinks, drums, fuel tanks for automobiles, toys and household goods. Due to the fact that high density polyethylene (HDPE)

Purpose for further research While bans have been signed into law and several groups and coalitions have arisen to advocate continued research into the adverse effects microplastics, there is still thousands of tons of micro-bead pollution present in aquatic reservoirs such as the Great Lakes. Such a mass of plastics, which are able to migrate with currents to new locations and settle into the sea floor, has left researchers and environmentalists alike unsure of how to resolve their current

For pearl necklaces, they would use polarizers and color filters to absorb a portion of incident light, and the light efficiency, brightness, and operating life of battery powered liquid- crystal displays were poor. Then they started using linear polarizers which now directly transmit one polarization direction of light and reflect the other, which this process strongly enhanced the light efficiency of the polarizers. Also, they generated bright colors in the visible wavelength.             Afterwards