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 Expert  718161

Expert in Colloids & Polymers


Available for your Consulting and Expert Witness Needs

Canada
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
ANTIFOAMING AGENT; DEFOAMING; FOAMING; BUBBLES; BUBBLING. Expert spent three years developing novel silicone defoamers, for which he was awarded a patent. He also developed the first mechanistic model which predicts defoaming kinetics. More recently he has developed new techniques for determining air bubble diameter distributions and concentrations on-line in paper machines.

COLLOID AND INTERFACE CHEMISTRY; COLLOIDAL DISPERSION; PARTICLE DISPERSION; PARTICLE SUSPENSION; SURFACE CHEMISTRY; SURFACE TENSION; SURFACTANT. Expert obtained his Ph.D. in Colloid Science in one of the world's foremost laboratories. Since that time, he has worked exclusively in researching colloid and surface chemical aspects of a number of technologies. This has resulted in more than 50 scientific publications. He has had wide experience in the preparation and characterization of colloidal systems usually in the presence of surfactants and polymers.

NEWSPRINT PAPER DE-INKING . Flotation de-inking of newsprint is an important part of Expert's current research program. His interests involve both the development of new flotation technology and the investigating its fundamental aspects. Expert is familiar with common soap and soap compounds, paper recycling, reclaimed fiber and pulp and paper fiber, recycled pulp and paper fiber, and waste paper recycling.

FLOCCULATION; FLOCCULATION AGENT. Expert spent seven years in the 1980s researching fines retention on newsprint paper machines. This work resulted in patents being issued and fundamental papers being published. Recently, he has started to work in this area again with emphasis on novel polymer synthesis and flocculation mechanisms. He is knowledgeable of paper and wet-end chemistry, polyelectrolytes, polymer flocculents, and wet-end paper operations.

HYDROCOLLOID; HYDROGEL; HYDROPHILIC POLYMER; LATEX MATERIAL; POLYMER GEL. Expert invented colloidal hydrogels based upon poly(N-ispropylacrylamide). This on-going work has given him much experience in the characterization of gels.

PULP WASHING; BROWNSTOCK WASHING. Expert and his team has pioneered the use of water soluble polymers to improve displacement washing on brownstock washers. More recently his interests have expanded to bleach plant washers.

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antifoaming agent

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brownstock washing

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bubble

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bubbling

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colloid

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colloid and interface chemistry

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defoaming

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flocculating agent

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flocculation process

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foaming

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gel

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hydrocolloid

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hydrogel

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newsprint paper

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particle dispersion (mixture)

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particle suspension (mixture)

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polymer gel

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pulp washing

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surface chemistry

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surface tension

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surfactant


Show Secondary and Basic Areas of Expertise

Often requested
with this expert:

Lubricants, Metalworking Fluid Formulations, Fluid...
Immunoreagents, Clinical Reagents, Surfactant Science
Surfactant Chemistry
Polyethylene Oxide, Toxic or Flammable Chemicals, Fire...

Education:
Year   Degree   Subject   Institution  
1976   PhD   Colloid Chemistry   Bristol University  
1971   MSc   Chemistry   University of Guelph  
1970   BSc   Chemistry   University of Guelph  

Work History:
Years   Employer   Department   Title  

1990 to

 

(Undisclosed University)

 

Department of Chemical Engineering

 

Professor

 

1990 to

 

Expert's University

 

McMaster Centre for Pulp & Paper Research

 

Director

 

1987 to 1990

 

(Undisclosed University)

 


 

Associate Professor

 

1984 to 1987

 

Union Carbide

 


 

Research Scientist

 

1978 to 1984

 

Paprican

 


 

Research Scientist

 

1977 to 1978

 

Paprican

 


 

NSERC Industrial Post-doctoral Fellow

 

1972 to 1974

 

Uniroyal

 


 

Research Scientist

 

Career Accomplishments:
Associations/Societies

He is a member of the AIChE, the ACS, the TAPPI, the CPPA, and the CIC.


Publications:
Publications and Patents Summary

Expert holds patents in flocculants for papermaking and for defoamers. He is the author of numerous publications in his field.

Selected Publications and Publishers  
 - Colloids and Surfaces.  
 - Journal of Pulp and Paper Science  
 - Colloids and Surfaces  
 - Colloid and Polymer Science  

Consulting Services:
Recent Client Requests:
  • Expert for consulting on Sulfosuccinate.
  • Expert for consulting on experience formulator of defoamers/ anti-foam agents.
  • Expert in chemistry for consulting on coagulant and flocculent for a wastewater treatment plant treating pome denim washing.
  • Expert for consulting on defoaming of milk in collecting receiver in a milking parlor.
  • Surfactant expert for consulting on Production of and removal of foam.
  • Expert in innocuous, environmentally friendly & biodegradable "green" antifoams.
  • Chemical expert for emulsions and surfactant blends used in firefighting.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

 

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