Is testing the heat stability of polymers an area of special interest to you?
Then we are happy to inform you that the all automatic
METRASTAT TEST SYSTEM makes it easier than ever
for hundreds of users around the world to:
- control the quality of raw materials
(powders, pastes, pellets) and finished products (pipe,
profile, sheets and coatings)by accurately measuring the progressive
heat stabilityof a wide variety of polymers- improve many manufacturing
processesby rapidly assessing major parameters such asthe fusion profile
of resins, the gelling time of plastisolsor the efficiency of blowing
agents in foamed compounds,
- optimize batch formulations in the plant
by carrying out a quantitative evaluation of the performance of stabilizers,
lubricants and many other additiveswhich affect the quality of a
product when exposed to heat.
In addition,
it saves a considerable amount of the time which is
usually devoted to heat
stability testing.
The principle of the METRASTAT integral method of measuring heat
stabilityis to reveal, through their gradual deterioration,the thermal degradation of long samples as they are progressively withdrawn from a dynamic testing oven in which they were kept at a constant temperature and then to measure their relative stability by color coding their digital image.
The test samples are first exposed to heat in a METRASTAT automatic testing oven.As they slowly emerge from the testing oven, the sar-nples are likely to be gradually discolored or otherwise altered over their length.The rate of degradation depends on the temperature and the duration of exposure.It also varies considerably with the relative heat stability of each formulation testedand can therefore be different for each sample.
A scanning of the samples on the FluoScan Color Image Coding (CIC) systemmakes it then possible to collect, file, print or send by email:- a digital color image of each sample- for each image, a color composition coding in the RGB/CMY color system- for each sample, a discoloration curve as a function of time of exposure to heat(visible degradation)- and a fluorescence curve, also as a function of time of exposure to heat(non visible degradation process revealing the increase of stabilizer consumption)
These data are essential to document
- the relative changes occurring in each sample's color and appearance as degradation progresses and- the quality limits of each sample's formulation.
The METRASTAT TESTSYSTEM simply takes the guessing out of heat stability testing.It saves time, ensures excellent repeatability of operation and reproducibility of experimental conditions It gives a comprehensive answer to the practical question:
How long will a given product withstand the effects of heat before it deteriorates beyond the acceptable?
Testing system: Progressive exposure to heat at constant temperature Test samples: 15 samples as film, sheet, powder, paste or pallets Temperature range: 30-300'C +/-I%, controlledHeat-up time: Room temperature to maximum in 30minPreheating duration: from 0 to 90minTest duration: from 30s to 48hVentilation: Automatic aeration, adjustable air extractionPower supply: 185-245VAC/48-62HzPower uptake: 230OWDimensions (LxWxH): 85Ox8OOx750rnmMass: - 80kg