نویسندگان
1 گروه پژوهشی پوشش‌های سطح و خوردگی، موسسه پژوهشی علوم و فناوری رنگ و پوشش
2 گروه پژوهشی رزین و افزودنی ها، موسسه پژوهشی علوم و فناوری رنگ و پوشش
3 گروه پژوهشی پوشش‌های سطح و خوردگی، مؤسسه پژوهشی علوم و فناوری رنگ و پوشش
4 گروه پژوهشی علوم و فناوری چاپ، موسسه پژوهشی علوم و فناوری رنگ و پوشش
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
In this research, a lithography ink formulation based on the Maleic and Alkyd resin has been prepared and its rheological parameters such as viscosity vs. shear rate, thixotropy cycle, storage and loss modules and dynamic viscosity were studied. It was observed that viscosity values augmented severely by increasing the pigments concentration and reducing the particle size distribution. Time dependence thixotropy values were significant in samples containing small particle size and high pigment concentration. Structural networking and association of carbon black particles as well as particle-particle and particle-binder interaction are reasons for this behavior. Storage and loss modules were increased with reduction of particle size and/or increasing of pigment concentration. Besides, the differences between dynamic parameters in low frequencies were obvious.
کلیدواژه‌ها [English]
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