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Unsaturated Polyester Resin Hydroxyl Number Determination as per DIN EN ISO 2554

The hydroxyl number denotes the quantity of potassium hydroxide (in milligrams) needed in order to neutralize acetic acid required for acetylation of 1 gram of an unsaturated polyester resin (UPR) with free hydroxyl groups.

From Metrohm USA Inc. 3 May 2018

Total Acid Number of Unsaturated Polyester Resin as per DIN EN ISO 2114

Total acid number (TAN) describes the quantity of potassium hydroxide needed for neutralizing free acids, free anhydride groups, and all carboxyl-terminated groups of an unsaturated polyester resin (UPR).

From Metrohm USA Inc. 2 May 2018

Partial Acid Value of Unsaturated Polyester Resin as per DIN EN ISO 2114

The quantity of potassium hydroxide needed for neutralization of half of the anhydride groups, all free acids and all carboxyl-terminated groups of an unsaturated polyester resin (UPR), is indicated by the partial acid value (also referred to as “partial acid number”).

From Metrohm USA Inc. 1 May 2018

Calibrating the White LED Lights of an Autolab Spectrophotometer

This article is focused on the correct procedure to be followed to determine the value of responsivity while calibrating white LED lights on the Metrohm Autolab Optical Bench.

From Metrohm USA Inc. 7 May 2018

How to Measure the Success of Antireflective Coatings

Antireflective coatings are applied to many optical materials, from everyday glasses to imaging instrumentation, to help the surface absorb light so that it doesn’t interfere with the user.

By Liam Critchley 4 May 2018

The Crystallization Behavior of Biodegradable Thin Films

Biodegradable thin films have been successfully applied in a wide range of applications within the medical field including tissue engineering, surgical sutures, gene therapies and controlled drug delivery tools, as well as within the field of agriculture, packaging and fiber production.

By Benedette Cuffari 4 May 2018

Cleaning the Air Worldwide with Sulfur Detection

Alongside the US, many countries are accomplishing improved clean air standards. Reliable sulfur detection and sampling are key to meeting the required levels. This is how SilcoTek® is improving sulfur detection and supporting industry in meeting clean air standards across the globe.

From SilcoTek 3 May 2018

Core Materials for Aircraft Structures

ROHACELL® HERO foam, qualified by AIRBUS, excels in aircraft parts for its strength, efficiency, and cost-effectiveness.

From Evonik Industries - ROHACELL 4 May 2018

Studying the Structure and Elemental Distribution of Ceramics

Ceramics often have microstructure and grain sizes that affect material performance. It is possible to optimize microstructure and grain boundaries with ceramic processing parameters for specific product requirements.

From Thermo Fisher Scientific Phenom-World BV 4 Apr 2018

Determining Battery Structure and Composition using SEM

Miniaturization is the secret to enhancing the specifications of new generation batteries. SEM is an unmatched technique for inspecting and analyzing nanoscale materials, enhancing production processes or detecting the reasons for failure.

From Thermo Fisher Scientific Phenom-World BV 4 Apr 2018