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 Expert  716411

Expert in Adhesion and Surface Properties

Available for your Consulting and Expert Witness Needs

New York (NY)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert has been involved with the theory and practical application of adhesion science for the past 30 years. He developed one of the adhesion theories--molecular bonding mechanism--and applied the hard-soft, acid-base (HSAB) principle to solid adhesion. He edited tweleve books on adhesion, including "Fundamentals of Adhesion" and "Adhesive Bonding," both published in 1991. He has taught a SUNY short-course on fundamentals of adhesion for more than 15 years.

adhesion theory


adhesion science

Expert has applied various adhesives for making subsystems related to xerographic machines, for example, photoreceptor devices, developers, fusing rollers, and others. In some applications, high-temperature and high-strength (or toughened) adhesives are required. He and his co-inventors have been awarded 11 U.S. patents. He edited the book "Adhesives, Sealants, and Coatings for Space and Harsh Environments," which discusses difficult problems in these areas.



adhesive application

Expert developed a theory on the effect of phase transition on surface tension. He discovered a relationship between glass temperature and surface tension of polymers. He determined critical surface tensions for many polymers used today in industry. He applied various methods to modify polymer surfaces, for example, corona charging, plasma treatment, and others. These modifications are chiefly aimed at improving adhesive bonding to polymers and metals.

polymer surface chemistry

Expert understands the various polymer wear challenges associated with xerographic machines. He has long been interested in the tribological problems of polymeric materials and has worked specifically on the prevention of wear on roller surfaces to improve service life of copying machine components. He edited two books related to basic tribological studies: "Advances in Polymer Friction and Wear" and "Polymer Wear and Its Control." In addition, Expert has been the Chairman of several international symposia related to adhesion, friction, and wear.

polymer wear

Expert developed the unified Lewis acid-base theory to resolve many problems regarding the theoretical and practical aspects of the original concept. Several recent publications since 1999 have been mentioned in the cited references.

acid-base equilibrium

Contact angle measurement is a common method to obtain surface energies of materials. The measurement by itself is nothing novel; however, the relationship of contact angle to surface energetics requires a good deal of understanding. Expert has published several papers regarding various aspects of that relationship, especially related to polymers.

contact angle measurement

Interfacial tension is the tension either between a liquid and a solid, or between two liquids. The important fact is that there is an initial interfacial tension and a final one. Expert discovered the importance of these two in the actual measurements. Much confusion in the literature was caused by not knowing the distinction between the two.

interfacial tension

The linear solvation energy relationship, or LSER, is an empirical method used in determining the effect of various factors affecting the rate of solvation. Expert discovered that there is a relationship between some of these factors related to the surface energetics of acid-base characteristics of liquids. For example, the acid base components of surface tension was shown to be related to alpha (the acidity factor) and beta (the basicity factor)parameters of the relationship (Langmuir. 12, 1681, 1996).

linear solvation energy relationships

Expert notes that surface wettability of a polymer (or a solid) by a liquid is determined from the relation of its surface energy to that of the wetting liquid. Thus, by knowing surface energies of materials, one can predict wettability. For example, water cannot wet Teflon simply because water has a much higher surface tension than that of Teflon. Thus, by measuring contact angle, we obtain a surface energy value of a solid, then using the surface energy value, we can predict the wettability of that solid by various liquids. Wettability of a solid is the key to adhesion. No adhesion can be achieved without the wetting of a solid by a liquid (or adhesive). Expert has determined wettability of many polymers, biopolymers, and solids. By his unified Lewis acid-base theory, he can further obtain the initial (intrinsic) surface energies of some polymers (or solids). Expert further notes that nearly all surface energies of polymers (or solids) reported in the literature are the actual (experimental) values obtained in the presence of a vapor. They are not the initial values. A better prediction of wettability and adhesion can be accomplished by using initial surface energy values.



coating adhesion

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Buffalo, New York;  Rochester, New York;  Syracuse, New York;  Utica, New York;  and Niagara Falls, New York.

Often requested
with this expert:

Adhesives and Sealants
Product Development and Marketing of Adhesives and...
Adhesives, Sealants, and Coatings
Adhesion Bonding, Plastic Surface Treatments, Plastics...

Year   Degree   Subject   Institution  
1955   Ph.D.   Chemistry   Case Institute of Technology  
1954   M.S.   Chemistry   Case Institute of Technology  
1947   B.S.   Chemistry   Amoy (Xiamen) University  

Work History:
Years   Employer   Title  

1994 to


(Undisclosed Consulting Company)



1968 to 1994


Xerox Corporation


Senior Scientist


1958 to 1968


Dow Chemical Company


Senior Chemist


Career Accomplishments:

Expert is a member of the American Chemical Society, the American Physical Society, the Adhesion Society, and the New York Academy of Sciences.


Expert was selected as a Distinguished Scholar by the Chinese Academy of Sciences in 1983 and is now an Honorary Professor of the Academy. He was named a Robert Patrick Fellow of the Adhesion Society in 1994. In 2001, he was elected a Fellow of the Division of Polymeric Materials: Science and Engineering, of the American Chemical Society.

Publications and Patents Summary

Expert has authored 110 technical papers and 31 U.S. patents.

Selected Publications and Publishers  
 - Journal of Adhesion  
 - Journal of Colloid and Interface Science  
 - in Applied Polymer Science. ACS PMSE Division  
 - Adhesives Age  
 - Journal of Adhesion Science and Technology  

Consulting Services:
Selected Consulting Examples:
  • Expert has performed translation services for Chinese documents, literature, and patents.
  • Expert has provided implementation assistance and in-depth research projects related to adhesion problems. As an example, he was requested by NASA to provide insights into the adhesion problems of lunar dust.
  • Expert has done troubleshooting in problems related to surface chemistry as it pertains to adhesion of polymers. For example, he provided consultation to adhesion problems of powders used for asthma treatment.
  • He has helped apply new adhesives and sealants to materials related to imaging industries.
  • Expert helped a client solve a problem regarding printing on a plastic part in a computer.
Recent Client Requests:
  • Expert in Zylar 631 for consulting on solvent based system for bonding acrylic copolymer to PVC.
  • Expert for consulting on Solvent paint adhesion problems.
  • Adhesives expert for consulting on adhesive for polyolefin/polyethylene film with Velcro backing.
  • Expert in adhesive application for consulting on bonding polyester fabric to inside of injection-molded plastic dome mesh frame.
  • Acrylamid expert for consulting on Acrylics.
  • Paint adhesion test expert for consulting on paint adhesion.
  • Materials science or surface science expert for consulting on plasma surface treatment.
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:
Expert Witness Experience Summary:
Expert has served as a technical witness.
Recent Litigation Client Requests:
  • Expert in panel delamination issue for litigation case.
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.

International Experience:
Country / Region   Summary
China   Expert has lectured and done consulting in China. He has also been involved in introducing a joint venture partnership in China. He is currently an honorary Professor at the Lanzhou Institute of Chemical Physics of the Chinese Academy of Sciences.

Language Skills:
Foreign Language   Description
Chinese   Expert is fluent in Chinese. He can translate Chinese documents, literature, and patents.

Additional Skills and Services:

He has held numerous training seminars on the fundamentals of adhesion. He has given lectures related to surface chemistry, polymer properties, and adhesion.

Other Skills and Services

For special situations (such as to meet environmental requirements), Expert designed "green" technology to obtain special adhesives by water-dispersible emulsions, UV-cured systems, or hot-melt solventless adhesives. One of Expert's books, "Adhesive Chemistry--Developments and Trends," published in 1985 and later translated into Russian in 1988, describes many special-purpose adhesives. His work with polymers has led Expert to expertise in some polymer physical properties. He was involved with making rubber-reinforced, toughened thermoplastics and received three U.S. patents related to acrylonitrile styrene-butadiene (ABS) systems and rubber-reinforced polymethyl methacrylate. A total of 20 patents were awarded for the making of novel monomers and polymers. Not only interested in the toughening of plastics, Expert has pursued a general understanding of basic polymer properties. In the area of xerography, he has gained experience with the triboelectricity of polymers and has recently authored a paper on the dual mechanism of contact charging of metal and polymers. His book "New Trends in Physics and Physical Chemistry of Polymers" was published in 1990. In addition, Expert has been the Chairman of several international symposia related to adhesion, friction, and wear.


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