CV of Benjamin T. A. Chang, PhD, PE
10400 Westoffice Dr. Ste 107, Houston, Tx 77042, 713-783-7659(O), Benjamin.Chang@PolyLabLLC.com
2005 – Present, President, PolyLab, LLC, Houston, Texas, USA
3rd Party Coating Test Lab, 3rd Party Legal Coating Expert Witness
A polymer researcher with over 40 years of experience in R/D of protective coating, epoxy, composite, elastomer and thermoplastics and is a NACE certified Coating Inspector, NACE and SSPC certified Protective Coating Specialist, NACE CIP Instructor, Texas licensed Professional Engineer, NACE Fellow
- Research Project Investigator of the US DOT funded research project on “External Pipeline Coating Integrity” to investigate the 3L Polyolefin coating disbondment mechanism due to residual stress and surface preparation, 3LPP cracking, Wet adhesion, High Temperature Cathodic Disbondment, High Temperature Pipeline Coating Qualification, Project #DTPH56-06-T-000022, Project Manager- James Merritt.2. Prepare high temperature external pipeline coating specifications -3LPP and FBE for Fluor Engineering.
- Conducted Failure Analyses of 3LPP pipeline coatings for Abu Dhabi Company for Onshore Oil Operations (ADCO)
- Prepared the new NACE SP-0108 standard on “Corrosion Protection of Offshore Platforms by Protective Coatings”.
- Prepared Technical specification for Shell water flood ID pipeline coating.
- Prepared Dow Corning-China Chemical Plant Protective Coating Selection
- Teach “3LPO Pipeline Coating Workshop” in China.
- Teach NACE CIP courses in China, Taiwan
1980 – 2005, Technical Staff, Shell Global Solutions (US) / Shell International E/P, Shell Development Co., Westhollow Technology Center, Houston, Tx
Material selection, Coating specification preparation, Failure analysis, Innovative research
Offshore Platform Protective Coatings
Prepared four new NACE TM0104, TM0204, TM0304, TM0404 standard test methods for atmosphere and splash zone, ballast water tank, exterior submerged maintenance and new construction coatings.
Prepared Specification for jacketed SS 316 instrument tubing to prevent pitting corrosion.
Prepared Specification for long life polychloroprene riser splash zone coatings.
Developed test protocol for downhole tubular ID coatings
Prepared Shell (Schedule P) technical specification for offshore platform coatings
Developed Shell test protocols for buried pipeline coatings, tapes, and shrink sleeves.
Developed methodology to determine maximum service temperatures for buried pipeline coatings.
Developed Shell test protocol to qualify high temperature subsea pipeline coatings.
Prepared Shell coating specification for high temperature 3LPP subsea pipeline coatings.
Prepared Shell DEP Technical Specification for “bituminous Enamel Coating of Steel Linepipe.
Prepared Shell DEP Technical Specification on Polychloroprene Splashzone Riser Coatings.
Prepared Shell DEP Specification for thermal spray zinc and aluminum coatings.
Prepared Shell DEP Technical Specification on Pipeline Rehabilitation by Liquid Coatings.
Mechanical Testing – Extensive experiences in composite testing-tensile, compression, shear, fatigue, creep, fracture toughness, crashworthiness, residual stress measurement for electronic epoxy encapsulation, acoustic emission testing, fiber-resin interfacial sheer strength.
Failure analysis – Developed techniques in the failure analysis of composite leaf spring, FRP pipe, and Insitupipe.
Epoxy Composite Processing – Worked with filament winding machine, pultrusion machine, reinforced injection molding, prepeg and autoclave, hand lay-up, and compression molds.
Developed structure and property relationship of flexible open-cell foams.
Developed techniques to measure the glass transition temperature of the Carilite wood adhesive cured in plywood.
Developed techniques to characterize the mechanical properties of Cariverse polymer in a tiny quantity (a few grams).
Established a procedure to measure the molecular chain orientation of drawn polymer fibers by X-ray diffraction.
Developed an innovative technology to plug casing and the unwanted casing production zone.
Ph. D. in Materials Science, Univ. of Rochester, Rochester, NY
B.S. in Mechanical Eng. National Taiwan Univ., Taipei, Taiwan
Accreditations / Honors
NACE FellowNACE Certified Coating Inspector #8090
NACE Protective Coating Specialist # 7757
NACE CIP Instructor
SSPC Certified Protective Coating Specialist #1071-976-1451
Texas Licensed Professional Engineer, #95389
NACE 2006 Technical Achievement Award
NACE, SSPC, ASTM
Professional Activities In NACE
Chair following NACE Task Group Committees:
- TG#260 Offshore Platform Atmospheric and Splash Zone Maintenance Coatings
- TG#263 Offshore Platform Ballast Water Tank Coating Systems
- TG#264 Exterior Protective Coatings for Seawater Immersion Service
- TG#312 Offshore Platform Atmospheric / Splash Zone New Construction Coatings
- TG#313 Corrosion Protection of Offshore Platforms by Protective Coatings
- TG #470, Critical Review of International Test Standard on Cathodic Disbondment
Following NACE standards have been published:
NACE TM0104-2004, Standard Test Method , “Offshore Platform Ballast Water Tank Coating System Evaluation”
NACE TM0204-2004, Standard Test Method , “Exterior Protective Coatings for Seawater Immersion Service”
NACE TM0304-2004, Standard Test Method , “Offshore Platform Atmospheric and Splash Zone Maintenance Coating System Evaluation”
NACE TM0404-2004, Standard Test Method , “Offshore Platform Atmospheric and Splash Zone New Construction Coating System Evaluation”
NACE SP0108-2008, Standard Practice on “Corrosion Protection of Offshore Platforms by Protective Coatings”.
NACE TM0115, Standard Test Method, “Cathodic Disbondment Test for Coated Steel Structures under Cathodic Protection”
Organizer and Chairman for the following NACE Coating Symposia;
NACE 2003-2021 Oil/Gas Coating Technology Symposium
NACE 2017, International Pipeline Coating Technology Conference in Houston, TX
NACE 2019,International Pipeline Coating Technology Conference in Dubai, UAE, Jan 15-17, 2019
- Member of ISO 20340 standard on Offshore Platform Coatings.
- Member of ISO 21890-3 Committee on Petroleum and natural gas industries – External coatings for buried or submerged pipelines used in pipeline transportation systems –Part 3: Field Joint Coatings
Patent / Award
“Form Filter Material and Process to Prepare Foam Filter Material” Patent #6,103,645, August 2000 “Downhole Polymer Plug and Liner And Methods Employing Same” US Patent # 6,896,063 May 2005
NACE 2006 Technical Achievement Award
NACE 2019 Fellow
|1||2021||Wet Abrasive Blast/ Decontamination Chemical for Offshore Maintenance Coatings, AMPP Corrosion 2021, Paper # 16651|
|2||2021||Offshore Atmospheric Coating Performance Evaluation Test Standards-NACE vs. ISO AMPP Corrosion 2021, Paper #16902|
|3||2019||Blister Initiation Mechanism of FBE Coatings, NACE Corrosion 2019 ,Paper #13508|
|4||2019||Impact of Very Low Concentration of Soluble Salts on Coatings Performance, NACE Corrosion 2019, Paper #13218|
|5||2018||ADVANCEMENT OF CATHODIC DISBONDMENT TEST Method, NACE Corrosion 2018, Paper #11018|
|6||2018||Evaluation of Offshore Coating Systems on Pitted Stainless Steels, NACE Corrosion 2018, Paper# 10487|
|7||2018||Evaluation of Offshore Coating Systems on Pitted Stainless Steels, NACE Corrosion 2017, Paper# 10487|
|8||2017||Accelerated Offshore Coating Performance Testing, NACE Corrosion 2017, Paper #9134|
|9||2016||Evaluation of Protective Coatings to Mitigate Corrosion under Insulation, NACE Corrosion 2016, Paper # 7804|
|10||2014||Critical Pre-Qualification Test Protocol for External High Temperature Pipeline Coatings, NACE Corrosion 2014, Paper# 3804|
|11||2014||Axial Wrinkling Behavior of Heat Shrinkable Sleeves / Tapes in Buried Pipelines, NACE Corrosion 2014, Paper # 3810|
|12||2012||Non-Osmotic Blistering Mechanism in FBE Coatings, NACE Corrosion 2012, Paper # 01298|
|13||2012||Wrinkling of Heat Shrinkable Sleeves / Tapes in Buried Pipelines, NACE Corrosion 2012, Paper # 01297|
|14||2011||INTERFACIAL ADHESION OF FBE PIPELINE COATINGS BY THE NOTCHED COATING ADHESION TEST, NACE Corrosion 2011, Paper #11026|
|15||2011||RESIDUAL STRESSES IN 3LPP PIPELINE COATINGS, NACE Corrosion 2011, Paper # 11025|
|16||2010||A New Approach for Determination of Wet Adhesive Strength of Epoxy Coatings on Steel Substrate, NACE Corrosion 2011, Paper# 10009|
|17||2010||Failure Analysis of Three Layer Polypropylene Pipeline Coatings, NACE Corrosion 2010, Paper #10002|
|18||2011||Determination of epoxy coating wet-adhesive strength using a standardized ASTM /ISO scratch test, J Coating Technology Research, 8(2011)255-263|
|19||2010||Mechanical Modeling of Scratch Behavior of Polymeric Coatings on Hard and Soft Substrates, Tribol Lett 37(2010) 159-167|
|20||2008||Critical Evaluation of International Cathodic Disbondment test Methods, 17th International Corrosion Congress, Las Vegas, USA|
|21||2008||Integrity of 3LPE Pipeline Coatings-Residual Stresses and Adhesion Degradation, Proceedings of the 7th International Pipeline Conference, IPC 2008, Calgary, Canada|
|22||2007||Disbondment Mechanism of 3LPE Pipeline Coatings, BHR Conference, Edinburgh, UK, 2007|
|23||2001||Selection of Field Applied Liquid Rehabilitation Pipeline Coatings, NACE Corrosion 2001, Paper # 01609|
Additional Published Reports
|1||1981||Evaluation of polymeric materials for seals in offshore geopressure gas environments.|
|2||1981||Evaluation of elastomeric materials for through-the-flowline pistons in offshore geopressured sour gas wells|
|3||1981||Evaluation of KTR ™ seals in offshore geopressure gas environments|
|4||1983||Evaluation of polymeric materials in sour gas environments|
|5||1983||Polymeric seal materials for south Texas gas wells shell development company Westhollow research center August 15, 1983|
|6||1985||The combined effect of time, temperature, moisture and mechanical stress on the failure of inland-made composite leaf springs|
|7||1985||Creep of the in-situ form pipe material – polyester-felt-filled Epon resin 9215/epon curing agent 9250|
|8||1986||Failure analysis of FRP springs|
|9||1987||Effects of additives and morphology on the creep behavior of polybutylene|
|10||1988||Energy absorption characteristics of circular fiberglass composite tubes – effects of tube wall thickness and tube diameter|
|11||1989||Fiber-resin interfacial adhesion measurement|
|12||1990||Energy absorption characteristics of circular fiberglass composite tubes – effect of resin properties|
|13||1991||Insitupipe at Valdez terminal – Alaska|
|14||1991||Flexural creep of Insituform liner materials – apparatus|
|15||1993||Disbonding of polyurethane film from crosslinked epoxy resins and polyester felt used in the Insitupipe/r/|
|16||1993||Creep rupture life prediction of EPON/r/ resin – polyester felt composites used in the Insituform/r/ process|
|17||1993||Tensile creep of cured in place pipe materials in simulated field environments – preliminary results|
|18||1993||The measurement of poly(propylene terephthalate) molecular chain orientation by x-ray diffraction|
|19||1994||Compressive properties of high internal phase emulsion foams – effect of polymer modulus and foam density|
|20||1998||Test protocol for Shell offshore platform maintenance coatings: topside and splashzone coatings|
|21||1998||User-friendly offshore platform coatings|
|22||2003||Evaluation of TEK-RAP Tapes as Pipeline coating materials|
|23||2005||Stainless steel air cooler tubes in offshore environments|