Coinjected Thermoplastic Speeds Thermoset Curing.New thermoplastic/thermoset coinjection technology is being explored by the German parent of KraussMaffei Corp., Florence, Ky., together with the Technical University of Iserlohn and a German maker of pan handles. In trial runs, the thermoset A polymer-based liquid or powder that becomes solid when heated, placed under pressure, treated with a chemical or via radiation. The curing process creates a chemical bond that, unlike a thermoplastic, prevents the material from being remelted. See thermoplastic. was injected in·ject·ed adj. 1. Of or relating to a substance introduced into the body. 2. Of or relating to a blood vessel that is visibly distended with blood. injected 1. introduced by injection. 2. congested. first, and then thermoplastic A polymer material that turns to liquid when heated and becomes solid when cooled. There are more than 40 types of thermoplastics, including acrylic, polypropylene, polycarbonate and polyethylene. was shot into the still-liquid thermoset core, in a method similar to gas-assisted injection. Cycle time was cut by half when heat from the thermoplastic accelerated curing inside the thick-walled part. Certain thermoplastic/thermoset combinations bond together strongly, raising the possibility of molding a thermoset part with a thermoplastic snap-hook or hinge hinge n. A jointed or flexible device that allows the turning or pivoting of a part, such as a door or lid, on a stationary frame. hinge see hinge joint. . |
|
||||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion