Polyethylene terephthalate

Polyethylene terephthalate, most commonly known as plastic, is a material consisting of a wide range of synthetic and/or semi-synthetic organics that are malleable/ductile and can be molded into many solid objects. Plastics are typically made of organic polymers (chains of carbon or chains of carbon that have been bonded to other elements such as oxygen, nitrogen or sulfur) having high molecular masses, but often contain other substances. Usually being synthetic, and most commonly made from petrochemicals. Due to plastic having a relatively low cost, easily manufacturable, highly versatile, and it being impermeable to water, plastics are used in virtually everything with an expanding range of products, from cups to writing utensils. Plastics…

recycling, but in many cases, not all of the materials can be recycled (Marsh & Bugusu, 2007, n.p.g.). For example, some materials, especially plastic food containers, are contaminated with oil and grease, which make them unsuitable or hard for recycling (“Identify recyclables”, n.d., n.p.g.). To give a better view about recyclables, the materials’ statuses for recycling are outlined as follows. • Papers & paperboards Sometimes, it is difficult to identify the recycling status of papers in the…

QUESTION: Give the Preparation, Properties and Applications of any four POLYMERS 1. Polyethenics ( Vinyl Resins) They are obtained by the polymerization of monomers containing the ethylenic bond (-C=C-) I. Polyethylene ( PE ) Polyethylene is one of the simplest and most inexpensive polymers. It is a waxy, chemical inert plastic. It a thermoplastic formed by the addition polymerization of ethylene. There are two types of polyethylene  Low Density polyethylene (LDPE) By using free radical…

Medical devices function to save and improve the lives of humans across the globe. Sadly, some devices turn out to be defective, leading to new health issues and possibly even death. This occurs when a faulty design prohibits the device from working as intended or when one or more parts of the product are contaminated during manufacturing. As a result of the defect, the patient may find they need to undergo further treatment, often in the form of surgery, and some die as a result of the product…

3.0 Results and Discussion Figure 1 shows the infrared spectrum for both crosslinked and non-crosslinked films. Both carrageenan and vanillin contain similar functional groups such as CH4, C=O, C-O-C, C-OH. There is no significant difference in the spectrum that can be detected for crosslinked and non-crosslinked film samples. The spectrum can be divided into upper and lower spectrum. In the upper spectrum for the region of 2000 – 3600 cm-1, O-H stretching (3100 – 3600 cm-1) and C-H stretching…

Supplier Description: Indorama Ventures PCL is a global leader in chemical production and are one of the largest manufacturers of Polyethylene Terephthalate (PET) polymers, which is used to produce plastic containers and other plastic-based items. Indorama brought in $7.2 billion dollars in revenue in 2016 and currently employees more than 14,500 skilled employees. Their headquarters is located in Bangkok, Thailand. The Knox Bottlers are considering Indorama Ventures PCL as a potential top…

Thermoplastic polyesters change their shape when exposed to heat. Some of the general properties include high tenacity, low water absorption, and minimal shrinking when compared to other types of industrial fibers. • Polyurethane: This is a highly resilient plastic polymer, which exhibits excellent tear and chemical resistance. Polyurethane is abbreviated as PU, and is available in a wide range of densities, and hardness levels. Some of the common applications of this polymer are bushings,…

its energy footprint” (Strenk 2007). Drinking bottled water is far more damaging for the environment and for the human body than drinking tap water. To the UN World Commission on Environment and Development defines sustainable as a development that meets the needs of the present without compromising the ability of future generations to meet their own needs. The problem with the bottled water is that it takes more than three centuries to degrade and there are a lot of “mountains of plastic…

November 2007, Cadbury Schweppes announced it would take the beverages unit public. In May 2008, Cadbury Schweppes demerged its beverage holdings forming the Dr Pepper Snapple Group. Dr Pepper Snapple Group holds naming rights to Dr Pepper Ballpark and the Dallas Stars' practice facility, the Dr Pepper Star Center, both of which are located in Frisco, Texas. It also retains non-alcoholic beverage rights to each facility's concessions as a result of the deals as well as sponsorships with the NHL…

infections disease caused by the poliovirus. disinfect is clean (something) with a disinfectant in order to destroy Bacteria. Barrier a fence or other obstacle that prevents movement or access. filter a device (usually a membrane or layer) that is designed to physically block certain objects or substances while letting others through. chemical process is a method or means of somehow changing one or more chemicals or chemical compounds. Biological processes are the processes vital for a…