| Summary: | 碩士 === 國立中興大學 === 化學工程學系 === 88 === Abstract
For the market of liquid crystal displays(LCD) being extented with the growth of portable PC and consumption electronics in future, in this study the pigment dispersion and electrodeposition paint is examined to meet color filter process, which can be used in the mass production, low pollution, and cost down. Two topics have been analyzed in this thesis as follows: (1)the design and manufacture for dispersion solution of phthalocyanine green pigment (PG-36) and carbon black; (2)the design and manufacture for electrodeposition paint with green pigment and carbon black. By Taguchi method, the compatibility of raw materials and new type of surfactant was examined for the optimum formulations as obtained as follows :
(1)Green dispersion solution :
including phthalocyanine green pigment 10 grams, acrylic resin 10 grams, dispersant B 1.0 gram weight, and cyclohexanone 80 ml;
(2)Carbon black dispersion solution :
including Colombia carbon black(R-1000) 8 grams, acrylic resin 12 grams, dispersant A 1.6 gram weight, and cyclohexanone 70 ml;
(3)Green electrodeposition paint :
including the optimum green dispersion solution 24 grams, acrylic resin 7 grams, neutralization agent(Triethyl amine) 1.0 gram weight, D.I. water 168 grams; and
(4)Carbon black electrodeposition paint :
including carbon black dispersion solution (based on predicting condition) 24 grams, acrylic resin 8 grams, neutralization agent(Triethyl amine) 0.5 gram, and D.I. water 150 grams.
Additionally, using viscosity meter, light scattering particle size measurement, microscopy and spin coating method evaluate the degree of dispersion and electrodeposition paint. As the results, some conclusions are summarized in the following : (a)dispersant B is suitable to phthalocyanine green pigment for the stability of dispersion in which the particle size is 139 nm; (b)dispersant solsperse 27000 is better for cabon black to reduce the particle size as 128 nm; (c) cyclohexanone is better than PGMEA for the stability of dispersion; (d)Colombia R-1000 is better for dispersion than Showa carbon black; and(e)acrylic resin can enhance the dispersion of phthalocyanine green pigment in electrodeposition solution, but it has not for carbon black.
|
|---|
