Guest Post by Jeremy Pasatta, Huntsman Corporation In the Part 1 blog post on amine curing agents for epoxies, we reviewed in general how amines react with epoxies, how to formulate with amine curing agents, and some of the general structure-property relationships of amines.  In this post, we will take a closer look at these structure property relationships, and how amine ... [Click to Continue...]

Guest Post by Jeremy Pasatta, Huntsman Corporation This is the first in a series of six guest posts by Jeremy Pasatta. Curing agents for epoxies are one of the most critical, and often overlooked, parts of a formulation.  The correct choice of curing agent can dramatically improve the properties of the formulation such as heat resistance and flexibility while also allowing ... [Click to Continue...]

Guest Post by Huan Lee, Lambient Technologies Both AC and DC measurements can probe the cure state of thermosets and composites, and it is important to understand their characteristics when deciding which to use. Dielectric cure monitoring, also called Dielectric Analysis (DEA) is an AC technique that excites a sensor with a sinusoidal signal of chosen frequency and amplitude, ... [Click to Continue...]

Guest Post by Huan Lee, Lambient Technologies The dielectric response of thermosets and resins depends on a number of factors that vary with frequency, so it is important to select an optimum frequency for dielectric cure monitoring (DEA). To inform this choice, we must look at the material property most directly related to cure state, which is frequency independent ... [Click to Continue...]