CE457/527- Colloid & Surface Phenomena
University at Buffalo, SUNY -
Department of Chemical Engineering
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Project due Tuesday April 9, 2002
April 16 (Tue), 3:30-4:50pm, 120 Clemens Hall
Project presentations: [Yoghurt/Cheese] [Ice Cream] [Mayonaise/Margarine]
April 18 (Thu), 3:30-4:50pm, 120 Clemens Hall
Project presentations: [Make-up/Lipstick] [Shampoo] [Hair Conditioner]
April 30 (Tue), 3:30-4:50pm, 120 Clemens Hall
Project presentations: [Moisturizing Lotion] [Sunscreen Lotion]
Colloid science is concerned with particles of dimensions in the range 10-9 - 10-6 m (10Å - 1µm) which range from
macromolecules (e.g., proteins, synthetic polymers) to finely subdivided multiphase systems (e.g., milk, aerosols). The
interfacial area between colloidal particles and the surrounding medium is very large (e.g., 106 cm2 area per 1 cm3 of volume)
and thus surface phenomena are prominent. Colloid and surface phenomena are important in biology (cell membranes, fat
digestion), pharmaceuticals (drug formulation and delivery), consumer products (foods, detergents, cosmetics), materials
(ceramics, polymers, paints, coatings, adhesives), imaging technology (inks, liquid crystals), geology (ore flotation,
enhanced oil recovery, clay stability), environment (smog, wastewater treatment), chemical manufacturing (catalysts), etc.
Interaction forces (dispersion, Lewis acid-base, electrostatic) in
interfacial systems; Surface and interfacial tensions and free energies;
Colloidal interactions in water; Colloidal stability; Adsorption and
adhesion (extended-DLVO approach); Kinetics of adhesion/adsorption;
Surface properties of clays and other minerals; Biosurfaces; Association
colloids formed by surfactants: micelles, bilayers, microemulsions,
surfactant phase behavior; Detergency & emulsions; Polymer structure and
properties in solid state & solution; Block copolymers, blends; Polymer
surfaces, adhesion, composites; Applications of surfactants and polymers
in paints & coatings; Characterization of colloids and surfaces; Colloid
& surface phenomena in product design.
Textbooks (on reserve):
C. J. van Oss: "Interfacial Forces in Aqueous Media", Marcel Dekker, 1994.
R. J. Stokes & D. F. Evans: "Fundamentals of Interfacial Engineering", VCH-Wiley, 1997.
• Other related books (on reserve)
- J. N. Israelachvili: "Intermolecular and Surface Forces", 2nd ed., Academic Press, 1992.
- A. W. Adamson & A. P. Gast: "Physical Chemistry of Surfaces", 6th ed., Wiley, 1997.
- D. F. Evans & H. Wennerström: "The Colloidal Domain", 2nd ed. , VCH-Wiley, 1999.
- P. C. Hiemenz: "Principles of Colloid and Surface Chemistry", 3rd ed., Marcel Dekker, 1997.
- R. J. Hunter: "Foundations of Colloid Science Vol. I & II", Oxford University Press, 1991.
- M. J. Rosen: "Surfactants and Interfacial Phenomena", 2nd ed., Wiley, 1989.
- R. G. Laughlin: "The Aqueous Phase Behavior of Surfactants", Academic Press, 1994.
- B. Jonsson et al.: "Surfactants and Polymers in Aqueous Solutions", Wiley, 1999.
- L. H. Sperling: "Introduction to Physical Polymer Science", 3rd ed., Wiley, 2001.
- L. H. Sperling: "Polymeric Multicomponent Materials", Wiley, 1997.
- A. V. Pocius: "Adhesion and Adhesives Technology", Hanser/Gardner, 1997.
- E. L. Cussler & G. D. Moggridge: "Chemical Product Design", Cambridge, 2001.
• Web-based resources
The course grade will be based on the following:
- 2 Midterms
1/3 of the grade each midterm.
- Term project
1/3 of the grade.
- The midterm exams will test knowledge and comprehension of the material assigned in class,
and also application and analysis of same.
- The term project will focus on synthesis
(create, predict, design, improve, propose) and evaluation (select, decide, critique,
justify, verify, debate, assess, recommend). Students working in teams of four will be assigned
a topic on applications of colloid and surface phenomena, prepare a written report
on this topic, and present their findings in an oral presentation in class and at the CE457_527
website (where the Power Point presentation and report will be posted).
- Project: students will work in teams of four on topics to be assigned in the first week of
- Written report (with references/links) on CE457_527 web page
- Oral 20 min presentation in class (PowerPoint-format presentation placed
on CE457_527 web page)
- Participation in class: highly desirable - each class will start with a
review of the material presented in the previous class - instructor will
ask questions in order to assess student understanding of the material
Click here for the course Syllabus
Colloid and surface phenomena aspects of: (1)Yoghurt and Cheese, (2)Ice-cream (regular and low-fat), (3)Mayonaise
(regular and low-fat), (4)Chocolate, (5)Beer and Wine, (6)Food thickerners, (7)Make-up, (8)Lipstick, (9)Sampoo, (10)Hair
conditioner, (11)Moisturizing lotion, (12)Sunscreen lotion, (13)Liquid laundry detergent, (14)Disinfectant.
Click here for
the project 2002 Term Projects -
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Last Updated, January 18, 2002
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