skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Investigation of the impact of cleaning on the adhesive bond and the process implications

Abstract

While surface cleaning is the most common process step in DOE manufacturing operations, the link between a successful adhesive bond and the surface clean performed before adhesion is not well understood. An innovative approach that combines computer modeling expertise, fracture mechanics understanding, and cleaning experience to address how to achieve a good adhesive bond is discussed here to develop a capability that would result in reduced cleaning development time and testing, improved bonds, improved manufacturability, and even an understanding that leads to improved aging. A simulation modeling technique, polymer reference interaction site model applied near wall (Wall PRISM), provided the capability to include contaminants on the surface. Calculations determined an approximately 8% reduction in the work of adhesion for 1% by weight of ethanol contamination on the structure of a silicone adhesive near a surface. The demonstration of repeatable coatings and quantitative analysis of the surface for deposition of controlled amounts of contamination (hexadecane and mineral oil) was based on three deposition methods. The effect of the cleaning process used on interfacial toughness was determined. The measured interfacial toughness of samples with a Brulin cleaned sandblasted aluminum surface was found to be {approximately} 15% greater than that with a TCEmore » cleaned aluminum surface. The sensitivity of measured fracture toughness to various test conditions determined that both interfacial toughness and interface corner toughness depended strongly on surface roughness. The work of adhesion value for silicone/silicone interface was determined by a contact mechanics technique known as the JKR method. Correlation with fracture data has allowed a better understanding between interfacial fracture parameters and surface energy.« less

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
754396
Report Number(s):
SAND2000-1042; 0000035216-000
0000035216-000; TRN: AH200016%%97
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 May 2000
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM; BONDING; ADHESIVES; SURFACE CLEANING; INTERFACES; SILICONES; FRACTURE PROPERTIES

Citation Formats

EMERSON,JOHN A., GUESS,TOMMY R., ADKINS,CAROL L. JONES, CURRO,JOHN G., REEDY JR.,EARL DAVID, LOPEZ,EDWIN P., and LEMKE,PAUL A. Investigation of the impact of cleaning on the adhesive bond and the process implications. United States: N. p., 2000. Web. doi:10.2172/754396.
EMERSON,JOHN A., GUESS,TOMMY R., ADKINS,CAROL L. JONES, CURRO,JOHN G., REEDY JR.,EARL DAVID, LOPEZ,EDWIN P., & LEMKE,PAUL A. Investigation of the impact of cleaning on the adhesive bond and the process implications. United States. doi:10.2172/754396.
EMERSON,JOHN A., GUESS,TOMMY R., ADKINS,CAROL L. JONES, CURRO,JOHN G., REEDY JR.,EARL DAVID, LOPEZ,EDWIN P., and LEMKE,PAUL A. Mon . "Investigation of the impact of cleaning on the adhesive bond and the process implications". United States. doi:10.2172/754396. https://www.osti.gov/servlets/purl/754396.
@article{osti_754396,
title = {Investigation of the impact of cleaning on the adhesive bond and the process implications},
author = {EMERSON,JOHN A. and GUESS,TOMMY R. and ADKINS,CAROL L. JONES and CURRO,JOHN G. and REEDY JR.,EARL DAVID and LOPEZ,EDWIN P. and LEMKE,PAUL A.},
abstractNote = {While surface cleaning is the most common process step in DOE manufacturing operations, the link between a successful adhesive bond and the surface clean performed before adhesion is not well understood. An innovative approach that combines computer modeling expertise, fracture mechanics understanding, and cleaning experience to address how to achieve a good adhesive bond is discussed here to develop a capability that would result in reduced cleaning development time and testing, improved bonds, improved manufacturability, and even an understanding that leads to improved aging. A simulation modeling technique, polymer reference interaction site model applied near wall (Wall PRISM), provided the capability to include contaminants on the surface. Calculations determined an approximately 8% reduction in the work of adhesion for 1% by weight of ethanol contamination on the structure of a silicone adhesive near a surface. The demonstration of repeatable coatings and quantitative analysis of the surface for deposition of controlled amounts of contamination (hexadecane and mineral oil) was based on three deposition methods. The effect of the cleaning process used on interfacial toughness was determined. The measured interfacial toughness of samples with a Brulin cleaned sandblasted aluminum surface was found to be {approximately} 15% greater than that with a TCE cleaned aluminum surface. The sensitivity of measured fracture toughness to various test conditions determined that both interfacial toughness and interface corner toughness depended strongly on surface roughness. The work of adhesion value for silicone/silicone interface was determined by a contact mechanics technique known as the JKR method. Correlation with fracture data has allowed a better understanding between interfacial fracture parameters and surface energy.},
doi = {10.2172/754396},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}