How Properties Of Polyolefins Are Enhanced By Calcium Carbonate Fillers
Posted by sungbocoltds on December 26th, 2013
There are many amazing things around us which make our lives simpler every day. They are everywhere, they are a part of our lives but we hardly get time to think about them. One such amazing thing is-Polyolefin, it’s used in food packaging, for insulation, cable jacketing, and in lot more things. So, here’s some useful information on Polyolefins, brought to you exclusively by Sungbo, the leading manufacturer of calcium carbonate filler masterbatch.
What are Polyolefins?
Polyolefin is the largest class of organic thermosetting polymers. They are non-polar, odorless, non-porous materials that are often used in consumer goods, structural plastics, food packaging and industrial products; this is the reason why they are also known as “Commodity Thermoplastics.” Polyolefins are the largest group of thermoplastics, the two most important and common types of polyolefins are polyethylene and polypropylene. Polyethylene was discovered as an unexpected experimental result in 1931 at the research laboratory of Imperial Chemical Industries. The research was continued because polyethylene was seen to have many suitable properties.
How are they manufactured?
A polyolefin is any of a class of polymers produced from a simple olefin (also called an alkene with the general formula CnH2n) as amonomer. For example, polyethylene is the polyolefin produced by polymerizing (linking many monomer units together) the olefin ethylene.
Properties of Polyolefins
1.Physical Properties: Polyolefins are milky white in appearance and waxy to the touch. Polyolefins are opaque when thick and transparent when in the form of film. Although often used as a container or as packing, polyolefins are not completely impervious to water, air or hydrocarbons.
2.Chemical Properties: Polyolefins have very good chemical stability. At temperatures below 60°C, they are practically insoluble. They are attacked neither by acids (except for oxidants), nor bases, nor salt solutions. They are insoluble in water and even have little affinity for water.
3.Electrical Properties: Polyolefins are excellent electrical insulators for various ambient conditions. This explains their tendency to be electrostatic.
How are the properties of Polyolefins Improved?
The properties of olefins can be improved by adding certain compounds such as-calcium carbonate filler masterbatch. Calcium carbonate concentrates in polyolefin will result in higher stiffness, improved processing, reduced cooling time and cost reduction. Also, such concentrates significantly reduce cycle time and improve profitability.
Uses of Polyolefins
These products are employed in many applications for all kind of uses, some general and others very specialized. They are used in materials intended for containers and packaging, pipes for water and gas, electrical appliances, cable coverings, fibers and components for motor vehicles. Polyolefins are materials with some really useful properties. However, like many other materials, it has disadvantages too, which can be improved by adding calcium carbonate fillers. For more such useful information or to get the best quality calcium carbonate masterbatch, visit Sungbo Company’s website.
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