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Titanium Dioxide in Masterbatch

Titanium Dioxide in Masterbatch

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Titanium Dioxide in Masterbatch

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  1. Titanium Dioxide in Masterbatch Revy Saerang (4005330) December 9, 2011 Advanced Analytical Chemistry

  2. Buzzword: Masterbatch What is it? • Color-pigmented material for plastic industry • Packaging (Food, beverage, cosmetic), computer hardware, automotive parts, etc.Use to insert colors and impart special properties to plastic products. • 1-2 % contribution in cost of production but master batch drives the quality, durability of the plastic product.1 1Clariant Corp. Masterbatches Profile. 2011 <//www.clariant.com/C125766B004CDFBC/vwWebPagesByID/04872E207B80A989C12568CE003E269A> (accessed on November 29, 2011)

  3. Background • Titanium Dioxide in Masterbatch Industry • Inorganic nanoparticle. • It is used extensively in masterbatch production as a white pigment, opacifier for colored systems and UV stability agent3. • a central ingredient to imparting clean, bright whites, or fine tuning the shades of color for the right eye appeal2. 2 Dupont Titanium Dioxide Ri-104 Brochure. Dupont Corp. www2.dupont.com/Titanium_Technologies/en_US/products/104/R104_Intro_Brochure.pdf Accesed on (Nov 29, 2011) 3Fisher, J. and Egerton, T.A.2001. Titanium Compounds, Inorganic. Kirk-Othmer Encyclopedia of Chemical Technology

  4. Problem Hypothesis • Reformulation of masterbatch production when the batch production does not meet the right appeal or specification and this affects cost of manufacturing, production schedule, customers’ satisfaction. The actual content and the particle size of titanium dioxide in masterbatch formulation has a significant effect in non-homogeneity of mixing of masterbatch formulation and to cause to reduce optimized pigment coloration

  5. Possible Analytical Methods 5 Potts, P.J and Webb.P.C. X-ray Fluorescence Spectrometry [Online]. In: G.E.M Hall (Editor). Geoananalysis. J. Geochem. Explor., 44:251-296

  6. Sample Preparation4 • Collect sample powder and dilute with nitric acid to give required acid concentration and add distilled water to adjust volume. • Add 0.01% (m/v) of PVA (Poly Vinyl Alcohol) as a dispersion agent and stabilizer • In a beaker, use magnetic stirrer and stir for 10 minutes to ensure homogenization before it is nebulized. • Use an ultrasonicator and shake the flask vigorously for around 30 minutes prior to analysis 4Guoqiang X, Bin H, Zucheng J and Chuqing. A comparison of slurry sampling electrothermal vaporization and slurry nebulization inductively coupled plasma mass spectrometry for the direct determination of trace impurities in titanium dioxide powder. Journal of Mass Spectrometry. 2006:41B:1378-1385

  7. ICP-MS(Inductively-Coupled Plasma with Mass Spectrometry) • Fine mist is extracted using high velocity Argon (14-18 L/min)12 • Atomization and ionization process at ICP torch • Couple with MS, ions are passed at vacuum condition • Through mass filter, ions separate at specific m/z ratio. • Adetector receives an ion signalproportionalto the concentration Temperature of plasma at the order of 10,000 K Fine droplets of mist Slurry nebulized sample 10 Inductively Coupled Plasma Mass Spectrometry. Advanced Technologies Department. [Online].2011 <http://eetd.lbl.gov/aet/inductively.html> Accessed on Dec 7, 2011

  8. Agilant 7500a ICP-MS7 • Dynamic Range>1000 ppm • Wide range of detection limit • Extreme Sensitivity > 500 Mcps/ppm • Price: $64,0008 Specifications ICP Source: 27.12 Mhz (max.1600 W) Mass analyzer: Quadrapole Detector: Electron multipier Pressure: Vacuum system Mass range: 2-260 amu 8 Agilant Technologies. Agilant 7500a ICP-MS brochure.<http://www.chem.agilent.com/Library/brochures/5968-8813E.pdf> Accessed on Dec 3, 2011. 9 Agilant Technology. Agilant 7500a ICP-MS pricing.<http://conquerscientific.com/product/agilent-7500a-inductively-coupled-plasma-mass-spectrometer-icpms-with-chiller-als-and-computer> accessed on Dec 3, 2011

  9. Results • The bar chart show how the particle size of titanium dioxide affect the relative signal intensity4 (intensity a content of titanium dioxide) • Scattering efficiency decreases rapidly as particle size varies (Figures with masterbatch with different particle size)6 Particle size 12B/R=Blue/Red reflectence values 6 Fisher, J. and Egerton, T. A. 2001. Titanium Compounds, Inorganic. Kirk-Othmer Encyclopedia of Chemical Technology 12 DuPont Ti-Pure titanium dioxide. DuPontTM<http://www2.dupont.com/Titanium_Technologies/en_US/tech_info/literature/Coatings/CO_B_H_65969_Coatings_Brochure.pdf> accessed Dec 8, 2011

  10. Alternative Technique • X-Ray Fluorescence Spectrometry • Low cost (~$4000) • Rapid analysis • Convenient for solid sample: disk sample11 • Precise, comparably sensitive • More complex detection and calibration method 11X-Ray Fluorescence Spectroscopy Unit. Network of Research Supporting Laboratories <http://www.uoi.gr/services/lab-net/net-web/XRF_en.pdf> accessed on Dec 7, 2011

  11. Conclusion • Slurry Nebulization-Inductively Coupled Plasma-Mass spectrometry (SN-ICP-MS) can be used to quantify the actual content of Titanium Dioxide and recognize the particle size effect. • Particle size of titanium dioxide and the actual content of titanium dioxide in one formulation of masterbatch production is significantly important in determining the right shade of color appeal due to its photocatalytic effect, scattering efficiency, and other optical properties.

  12. References • Clariant Corp. Masterbatches Profile. 2011 <//www.clariant.com/C125766B004CDFBC/vwWebPagesByID/04872E207B80A989C12568CE003E269A> (accessed on November 29, 2011) • Dupont. DupontTM Ti-Pure R-104 titanium dioxide. <www2.dupont.com/Titanium_Technologies/en_US/products/104/R104_Intro_Brochure.pdf > Accesed on (Nov 29, 2011) • Fisher, J. and Egerton, T.A.2001. Titanium Compounds, Inorganic. Kirk-Othmer Encyclopedia of Chemical Technology • Guoqiang X, Bin H, Zucheng J and Chuqing. A comparison of slurry sampling electrothermal vaporization and slurry nebulization inductively coupled plasma mass spectrometry for the direct determination of trace impurities in titanium dioxide powder. Journal of Mass Spectrometry. 2006:41B:1378-1385 • Potts, P.J and Webb.P.C. X-ray Fluorescence Spectrometry [Online]. In: G.E.M Hall (Editor). Geoananalysis. J. Geochem. Explor., 44:251-296 • Fisher, J. and Egerton, T. A. 2001. Titanium Compounds, Inorganic. Kirk-Othmer Encyclopedia of Chemical Technology • Skoog, D.; Holler, F.; Crouch, S. Principles of Instrumental Analysis, 6th ed • 8Agilant Technologies. Agilant 7500a ICP-MS brochure.<http://www.chem.agilent.com/Library/brochures/5968-8813E.pdf> Accessed on Dec 3, 2011 • Agilant Technology. Agilant 7500a ICP-MS pricing.<http://conquerscientific.com/product/agilent-7500a-inductively-coupled-plasma-mass-spectrometer-icpms-with-chiller-als-and-computer> accessed on Dec 3, 2011 • Inductively Coupled Plasma Mass Spectrometry. Advanced Technologies Department. [Online].2011 <http://eetd.lbl.gov/aet/inductively.html> Accessed on Dec 7, 2011 • X-Ray Fluorescence Spectroscopy Unit. Network of Research Supporting Laboratories <http://www.uoi.gr/services/lab-net/net-web/XRF_en.pdf> accessed on Dec 7, 2011 • DuPont Ti-Pure titanium dioxide. DuPontTM .2011 <http://www2.dupont.com/Titanium_Technologies/en_US/tech_info/literature/Coatings/CO_B_H_65969_Coatings_Brochure.pdf>accessed Dec 8, 2011