Platinum-cobalt index: Potassium chloroplatinate and cobalt chloride prepare a color standard solution, and compare it with the tested sample to determine the color intensity of the sample, that is, chromaticity. The chromaticity of the sample is represented by the chromaticity value of the corresponding chromaticity standard solution, that is, the Pt-Co value. It can be seen that the platinum-cobalt index is generally only measured for liquids, so how should powders be measured?
What is Brominated Epoxy Resin
Brominated epoxy resin (BE or BEO for short) has been widely used in electronics, automobiles, office equipment, household appliances and other industries due to its good electrical properties and physical and mechanical properties. This product has excellent melt flow rate , high flame retardant efficiency, excellent thermal stability and light stability, and can make the flame retardant material have good physical and mechanical properties, so it is widely used as PBT, PET, ABS, nylon 66, thermoplastic polyurethane and PC / Flame retardant for thermoplastic materials such as ABS plastic alloys. Brominated epoxy resin is insoluble in water, alcohol, xylene, butanone, etc., but soluble in DMF, ethylene glycol dimethyl ether, etc. Many companies have requirements for the platinum-cobalt index of brominated epoxy resins. In order to better control the color quality, the importance of platinum-cobalt color measuring instruments is self-evident.
Which instrument to choose
Transmission Spectrophotometer CS-810 is a high-performance spectrometer specially designed to measure liquid transmittance, absorbance, concentration, chromaticity and other parameters. It is cost-effective and meets multiple standards, so tasks such as measuring platinum and cobalt color can be easily entrusted to it.
Measuring range
The tools and samples that need to be prepared in addition to the instrument are shown in the figure below.
Measurement method and result
Since the brominated epoxy resin is in powder form at room temperature, it needs to be dissolved, and because it is more soluble in water, the solvent we prepared is 1.4-dioxane. Difficult to dissolve at room temperature, you need to put the beaker into warm water and stir the brominated epoxy resin in the beaker until it dissolves before measuring. The specific steps are shown in the figure below:
Summarize
At present, there are very few instruments for measuring platinum-cobalt color in CHINA, and imported instruments are expensive and inconvenient for warranty, so it is even more difficult to control the color quality of platinum-cobalt color. Then Caipu Technology can solve these problems for you. CS-810 is not only cost-effective, but also complies with a number of international standards. It is your best choice for platinum and cobalt color measurement!
