SP Chemistry, Materials and Surfaces
 
 

 

Course Colloid Chemistry and Colloidal Dispersions -
Fundamentals and Practical Aspects
30 May-1 June 2017
Tentative date. Registration not yet open.
SP, Drottning Kristinas väg 45, Stockholm, Sweden
E-mail annika.bergstrom@sp.se to be included on list to receive finalized details and link to registration when open.

This 3-day intensive course provides a comprehensive introduction to the fundamental and practical aspects of colloid chemistry and colloidal dispersions. The course is focused on particles that are dispersed in liquids. Nearby topics, such as surfactant chemistry, polymers in solution and emulsions, are also covered to some degree in order to make the course complete on a stand-alone basis. It is organized by SP's unit for Chemistry, Materials and Surfaces within the formulation competence platform PERFORM.

Colloidal dispersions are systems where one phase, having at least one dimension between 1 and 1000 nm, is dispersed in a second phase. Examples are particles dispersed in a liquid to form a suspension or liquid droplets dispersed in a second liquid, in which it is insoluble, to form an emulsion.

Colloidal dispersions are present in every-day life, from food systems to ceramics. The chemistry of colloidal dispersions covers many overlapping fields of science, such as physical chemistry, organic chemistry, physics and biology. It is therefore rare that solely colloidal dispersions are covered in academic course programs.

Who is this course intended for?
The course is relevant for people working in research, development and formulation of any colloidal system, be it paints, coatings, ceramics, food or pharmaceutical formulations.

What will this course give me?
This course provides a comprehensive introduction to the fundamental and practical aspects of colloid chemistry and colloidal dispersions.


Lectures
Introduction to Colloid Chemistry
• Nature of the colloidal state and classification
• Brownian motion
• Particle size and shape

Forces in Colloidal Systems
• Origin of attractive forces
• Hydrophobic forces
• Entropic forces

Colloidal Instability
• The six different instabilities of colloidal dispersions
• Stabilization of colloidal systems through an osmotic barrier

Colloidal Stability – Charge Stabilization I & II
• How to introduce charges on colloidal particles

• Theories of stabilization with charge
• Characterization of colloidal particles by electrokinetic measurements

Solvent Properties
• Solvents other than water

Introduction to Phase Diagrams
• Phase diagrams of two-, three-, and four components
• Stability, instability and metastability

Surfactants in Solution and Adsorption of Surfactants on Colloidal Particles
• Self-assembly structures (micelles, bilayers, vesicles)
• Mixtures of surfactants
• Surface and interfacial tension
• Adsorption on solid and liquid surfaces

Polymers in Solution
• Characterization and properties
• Polymer phase behaviour
• Mixtures of polymers in solution

Adsorption of Polymers on Colloidal Particles - Steric Stabilization
• Effect of polymer molecular weight and kinetic effects
• Adsorption of polyelectrolytes
• Stabilization of colloids with polymers – steric stabilization
• Flocculation with polymers

Surfactant – Polymer Interaction in Solution and at Surfaces
• Phase behaviour of surfactant – polymer mixtures
• Adsorption of surfactant – polymer mixtures at surfaces

Preparation of Colloidal Particles/Dispersions
• Condensation methods
• Dispersion methods

Heterosystems – Stability and Instability
• Systems with particles and liquid interfaces – suspoemulsions
• Attachment of dispersed particles to interfaces and effects on colloidal stability of emulsions and foams
• Heterocoagulation

Rheological Behaviour of Colloidal Systems I & II
• Basic concepts and definitions
• Effect of dispersion state and solid content
• Thickeners in aqueous solution
• Viscoelasticity and rheometry techniques

Emulsion and Emulsifiers
• Emulsion characteristics
• Surfactant choice and the preparation of emulsions
• Mechanisms of emulsion stability and instability

Foams
• Foam characteristics, preparation and stability
• Foam breaking

The course program also includes a shorter tour of the Stockholm laboratory facilities of SP Chemistry, Materials and Surfaces. The tour is an opportunity to see and learn more about a couple of research instruments relevant to the topics of the course.

Lecturers
Prof. Bengt Kronberg (SP)
Dr. Martin Andersson (SP)
Dr. Eva Blomberg (SP/KTH)
Dr. Isabel Mira (SP)
Dr. Mikael Kjellin (SP)
Prof. Mark Rutland (SP/KTH)

Documentation: Participants receive a personal copy of the book “Surface Chemistry of Surfactants and Polymers” by Bengt Kronberg, Krister Holmberg and Björn Lindman, Wiley, 2014, 496 pages, ISBN: 978-1-119-96124-6 and copies of slides with adjoining comments.

Fee: The fee for the course 2017 has not yet been set. 30% discount for PhD students. E-mail annika.bergstrom@sp.se to be included on list to receive finalized details and link to registration when opened.

Fees cover all tuition costs, course documentation including a copy of the course book, lunches and coffee break refreshments. Accommodation is not included in the fee.

Cancellation up to 14 Days before the event 100% refund, cancellation 14-7 days before the event 50% refund. No refund if you cancel later than 7 Days before the event. After informing the organizers a colleague can take your place if you cannot participate.

Time: The course starts on Tuesday 30 May at 09:30 (registration and coffee from 09:00) and finishes on Thursday 1 June at 14:15. Note! These dates are tentative. E-mail annika.bergstrom@sp.se to be included on list to receive finalized details and link to registration when opened.

L
anguage: English

Venue:
SP, Drottning Kristinas väg 45, Stockholm, Sweden.
500 m from the subway station Tekniska Högskolan.

Accommodation:
We kindly ask participants to book their own hotel. See info.

Registration: E-mail annika.bergstrom@sp.se to be included on list to receive finalized details and link to registration when opened.

Questions about the scientific content or the opportunity to arrange in-house courses at your company:
Contact Isabel Mira, SP
E-mail: isabel.mira@sp.se
Mobile phone: +46 (0)768 64 00 64

Practical questions about the course/registration:
Contact Annika Bergström, SP
E-mail: annika.bergstrom@sp.se
Mobile phone: +46 (0)768 64 00 70