Category Archives: Property Improvements

We put the “X” in PEX: The Movie

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We put the “X” in PEX pipe

Polyethylene (PE) pipe goes through the e-beam process and becomes crosslinked (X). That is how we put the “X” in PEX. Polyethylene is the most common polymer we electron beam crosslink every day. We see it in different forms, from injection molded and thermoformed parts, extruded sheet, tubing and wire and cable. While there are […]

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What is chain branching?

Crosslinking of polymers via electron beam irradiation (e-beam) is  well known and the number of success stories involving it touch our daily lives in many ways – but more on that in a later blog. An important similar concept that might be a little less familiar to some is the process of chain branching. What […]

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Why use electron beam treatment curing for reinforced plastics or composites?

With the different curing options out there, how do you know which one is best for your product? UV curing is a good method for surface treatments, however UV has limited penetration. Thermal curing may provide the answer for some thicker materials, however e-beam curing has several advantages over the thermal curing process:

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Will crosslinking increase my plastic part’s chemical resistance?

You might remember from high school chemistry class that solubility is increased by chemical similarity between solute and solvent. Plastics will be most vulnerable to chemicals in which it is soluble. Therefore, you can tailor your choice of plastics so that it is resistant to a specific class of chemicals, or –very efficiently — increase […]

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What is crosslinking?

  Crosslinking plastics, using e-beam processing, creates excellent property improvements. But just what is crosslinking? If you want the technical definition (which may make your eyes glaze over) it is:

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How do I know my part has been effectively crosslinked?

  When most of our customers come to us, they have a specific property improvement in mind. Clients with a formed part may desire improved high temperature properties or improved tensile strength, while clients looking to improve the properties of polymers in pellet form may desire a specific melt index or melt strength.

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Will electron beam crosslinking improve the thermal resistance of my polyethylene molded part?

Polyethylene is the most commonly electron beam-crosslinked polymer. Regardless whether it is LDPE, LLDPE or HDPE, it will crosslink with sufficient dose. The effect of the crosslinking will be a dramatic increase in heat resistance, as well as an improved impact resistance at low temperatures and a number of other property enhancements.

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