Posts Tagged ‘moisture scale’
Moisture Analyzer for Plastic Resins
When you select a moisture analyzer for low-moisture plastic resins you will need a model that that not only can quickly but also accurately gauge the moisture content of these resins. And as with many quality control requirements that involve moisture content, you’ll want a moisture balance that can meet standards set by trade associations and professional organizations.
In this post you’ll get a briefing on the following:
- why low moisture content is important in plastic resins
- a technical standard that applies to determining moisture in plastics
- how benchtop moisture analyzers work
- a standards-compliant moisture analyzer
for plastic resins
Why Low Moisture Content is Important
Owners of injection molding companies and operators of injection molding machines are aware that incorrect moisture content in plastic resins can result in an inferior finished product.
Product shipped from resin suppliers may have the specified moisture content but ambient conditions … Read the rest
Selecting a Moisture Analyzer Drying Process
Infrared moisture analyzers such as the new Kern MLS-C now available from Tovatech use the thermogravimetric drying process to calculate the moisture content of a sample. Also called the loss of weight on drying (LOD) method, the drying process compares the weight of a sample after drying to the weight before drying. The difference is displayed the percent of moisture in the sample. This is a critical quality control step to confirm that commercial bulk drying ovens are performing to specification and that the product meets regulatory or industry standards for moisture content.
Selecting the Moisture Balance Drying Mode
Because products react differently to heat employed during the drying process, laboratory moisture balances can be programmed for different drying modes or drying profiles. These can be classified as standard, rapid, step and gentle. The mode is graphically displayed on the control panel. Here is a general description of each:
- Standard