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Polyethylene
Polyethylene:
Polyethylene (PE) is the common Polymer in the world, produced 85mt / year. This is due to the wide range of possible uses. Depending on its melting point, the PE is divided into several categories: low, medium and high density, each class with specific industrial applications.
It occurs in the following Forms:
High density Polyethylene (HDPE),
ULDPE (ultra low density Polyethylene),
LLDPE (linear low density Polyethylene),
MDPE (medium density Polyethylene),
HMWPE Polyethylene (high molecular weight) and
UHMWPE (ultra high molecular weight).
Polymerization:
The Polymerization was taking place under high pressure (several hundred bars) and high temperature (up to 290°C) but over the years the energy input has been reduced by using catalytic systems.
Polyethylene Resins:
The Ziegler and metallocene catalyst families have proven to be very flexible at coPolymerizing ethylene with other olefins and have become the basis for the wide range of Polyethylene Resins available today, including very low density Polyethylene and linear low-density Polyethylene.
Polyethylene:
Polyethylene is mostly produced in Slurry, gas-phase fluidized bed reactor or combination of both processes in series such as like Spherilene and Borstar processes. Either double-tube loop reactors or autoclaves (stirred-tank reactors) are commercially employed for Slurry-phase Polymerization, in the presence of a catalyst system and a diluent.
What is Polyethylene used for:
Polyethylene is a member of the important family of polyolefin Resins. It is the most widely used Plastic in the world, being made into products ranging from clear food wrap and shopping bags to detergent bottles and automobile fuel tanks.
Where is Polyethylene found:
A new plant is being constructed in Brazil for the production of Poly(ethene), from ethene, that is made from sugar cane via Bioethanol. This is sometimes termed Bio-based poly(ethene) (Bio-based Polyethylene).
What type of material is Polyethylene:
Polyethylene ThermoPlastic Characteristics. Polyethylene (PE) is the most widely used thermoPlastic Polymer for fabricated parts and components.
What is an example of Polyethylene Plastic:
Low-Density Polyethylene is sometimes recycled. It is a very healthy Plastic that tends to be both durable and flexible. Items such as cling-film, sandwich bags, squeezable bottles, and Plastic grocery bags are made from LDPE.
Is Polyethylene Synthetic or natural:
Examples of Synthetic Polymers include nylon, Polyethylene, Polyester, Teflon, and epoxy. Natural Polymers occur in nature and can be extracted. They are often water-based. Examples of naturally occurring Polymers are Silk, Wool, DNA, Cellulose and proteins.
What is the strongest Polymer:
The World Strongest Synthetic Fibers.
What is the strongest Polymer:
The World Strongest Synthetic Fibers. Ultra high molecular weight Polyethylene fibers (UHMWPE) are extremely strong and are the lightest of all ultra-strong fibers. The ultimate strength can exceed 3000 MPa.
What are the 2 types of Polymer:
Polymers are of two types: naturally occurring and Synthetic or man made. Natural Polymeric materials such as hemp, shellac, amber, Wool, Silk, and natural rubber have been used for centuries. A variety of other natural Polymers exist, such as Cellulose, which is the main constituent of wood and paper.
Which is an example of thermosetting Plastic:
Common examples of thermoset Plastics and Polymers include epoxy, silicone, polyurethane and phenolic. In addition, some materials such as Polyester can occur in both thermoPlastic and thermoset versions.
Note: This is the basic information only, if you want to start independently, please have practical experience or basic qualification regarding this. Another most important thing is, please have a detailed project report, this document gives you a confident process plan.
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