subject: Using Additives Gives Better Quality Hdpe Coaxial Cables [print this page] PolyEthylene, especially HDPE is one of the most commonly used polymers for construction of coaxial cables. These cables are characterized by a single conducting core layered by a dielectric, usually foamed PE, which is then covered by sheaths and shielding of various types.
Coaxial cable is used as a transmission line for radio frequency signals. Its applications include feedlines connecting radio transmitters and receivers with their antennas, computer network (Internet) connections, and distributing cable television signals.
One advantage of coax over other types of radio transmission line is that in an ideal coaxial cable the electromagnetic field carrying the signal exists only in the space between the inner and outer conductors.
This allows coaxial cable runs to be installed next to metal objects such as gutters without the power losses that occur in other types of transmission lines. Coaxial cable also provides protection of the signal from external electromagnetic interference.
Polymers are generally used for two purposes in coaxial cables. First is to act as the dielectric surrounding the core and second is to provide overall mechanical shielding to the cable.
Often, the manufacturers mix reprocessed polymers in various dosages with the virgin HDPE polymer. While this is done primarily to cut the costs of expensive virgin polymer, it also results in loss of physical properties like shine and elongation in the cables.
Poor elongation and reduced physical properties in the cables lead to cracks in the cables while making rolls.
Also, the processors have to account for moisture present in the recycled plastics. Generally, the recycling process leads to moisture buildup in the plastic which can cause severe surface defects in end products if left untreated.
ElangoGain is a high quality additive developed by Vin Industries for enhancing physical properties of coaxial cables made from HDPE.
According to the manufacturers, the additive is based on grafted polymers and help HDPE Cable manufacturers using reprocessed polymers in increasing the elongation and gloss of the cables. Degradation due to oxidation also is significantly checked.
Besides this, the additive has a desiccant action and removes moisture related surface defects from the end products.
The experts add that the multiple benefits offered by ElangoGain has created a loyal customer base for the additive in a short period of time.
