Modified Silane Polymer Adhesive: Effect of Aluminum Substrate Treatment Methods and the Adhesive Thickness on Adhesive Durability and Joint Strength
Hypothesis: Adhesives and sealants based on modified silane polymer (MS polymer) are increasingly gaining market share in adhesive and sealant market place due to their desirable performance in various applications. Methods: In order to find the most optimal adhesive processing parameters, different...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Iran Polymer and Petrochemical Institute
2021-04-01
|
| Series: | علوم و تکنولوژی پلیمر |
| Subjects: | |
| Online Access: | http://jips.ippi.ac.ir/article_1792_5f38f43a8f04d1d1eae76bef283a724c.pdf |
| _version_ | 1819116644626071552 |
|---|---|
| author | Maryam Khaghanipour Ali Salimi |
| author_facet | Maryam Khaghanipour Ali Salimi |
| author_sort | Maryam Khaghanipour |
| collection | DOAJ |
| description | Hypothesis: Adhesives and sealants based on modified silane polymer (MS polymer) are increasingly gaining market share in adhesive and sealant market place due to their desirable performance in various applications. Methods: In order to find the most optimal adhesive processing parameters, different stages of aluminum surface treatment in three stages were investigated, including the surface degreasing, sanding and priming. In this manner, the performance of four different types of degreasing agents and two kinds of silane-based primers were investigated individually. The optimum bond line thickness was also determined through adhesive joint shear strength. The effect of different degreasing agents and silane-based primers were evaluated through lap-shear strength. The effect of adhesive layer thickness was studied through lap-shear strength and cleavage strength tests.Findings: Optimum bond line thickness was determined at 0.5 mm based on the results of the adhesive shear strength, whereas the results of the fracture toughness indicated 1.25 mm as the optimum adhesive layer thickness. The lower adhesive strength in thicker bond lines may well be due to the possible formation of air traps and lower constrained effect of the substrate. Therefore, the least requirements for aluminum surface treatment was surface degreasing followed by sanding which results in a transition from adhesive fracture mode to cohesive fracture. The use of two kinds of silane-based primers containing the amine group, triethoxy silylpropylamine (APS) and the other with epoxy group, glycidoxypropyl trimethoxysilane (GPS) was more efficient in improving joint durability even after 2500 h cyclic aging with the more pronounced results for the APS. |
| first_indexed | 2024-12-22T05:20:22Z |
| format | Article |
| id | doaj.art-fce3e096bdb84f9eb35fbb192ced5507 |
| institution | Directory Open Access Journal |
| issn | 1016-3255 2008-0883 |
| language | fas |
| last_indexed | 2024-12-22T05:20:22Z |
| publishDate | 2021-04-01 |
| publisher | Iran Polymer and Petrochemical Institute |
| record_format | Article |
| series | علوم و تکنولوژی پلیمر |
| spelling | doaj.art-fce3e096bdb84f9eb35fbb192ced55072022-12-21T18:37:45ZfasIran Polymer and Petrochemical Instituteعلوم و تکنولوژی پلیمر1016-32552008-08832021-04-01341435410.22063/jipst.2021.17921792Modified Silane Polymer Adhesive: Effect of Aluminum Substrate Treatment Methods and the Adhesive Thickness on Adhesive Durability and Joint StrengthMaryam Khaghanipour0Ali Salimi1Department of Adhesive and Resin, Faculty of Petrochemical, Iran Polymer and Petrochemical Institute, P.O. Box 14975-112, Tehran, IranDepartment of Adhesive and Resin, Faculty of Petrochemical, Iran Polymer and Petrochemical Institute, P.O. Box 14975-112, Tehran, IranHypothesis: Adhesives and sealants based on modified silane polymer (MS polymer) are increasingly gaining market share in adhesive and sealant market place due to their desirable performance in various applications. Methods: In order to find the most optimal adhesive processing parameters, different stages of aluminum surface treatment in three stages were investigated, including the surface degreasing, sanding and priming. In this manner, the performance of four different types of degreasing agents and two kinds of silane-based primers were investigated individually. The optimum bond line thickness was also determined through adhesive joint shear strength. The effect of different degreasing agents and silane-based primers were evaluated through lap-shear strength. The effect of adhesive layer thickness was studied through lap-shear strength and cleavage strength tests.Findings: Optimum bond line thickness was determined at 0.5 mm based on the results of the adhesive shear strength, whereas the results of the fracture toughness indicated 1.25 mm as the optimum adhesive layer thickness. The lower adhesive strength in thicker bond lines may well be due to the possible formation of air traps and lower constrained effect of the substrate. Therefore, the least requirements for aluminum surface treatment was surface degreasing followed by sanding which results in a transition from adhesive fracture mode to cohesive fracture. The use of two kinds of silane-based primers containing the amine group, triethoxy silylpropylamine (APS) and the other with epoxy group, glycidoxypropyl trimethoxysilane (GPS) was more efficient in improving joint durability even after 2500 h cyclic aging with the more pronounced results for the APS.http://jips.ippi.ac.ir/article_1792_5f38f43a8f04d1d1eae76bef283a724c.pdfadhesivemodified silane polymerjoint strengthsurface treatmentbond line thickness |
| spellingShingle | Maryam Khaghanipour Ali Salimi Modified Silane Polymer Adhesive: Effect of Aluminum Substrate Treatment Methods and the Adhesive Thickness on Adhesive Durability and Joint Strength علوم و تکنولوژی پلیمر adhesive modified silane polymer joint strength surface treatment bond line thickness |
| title | Modified Silane Polymer Adhesive: Effect of Aluminum
Substrate Treatment Methods and the Adhesive
Thickness on Adhesive Durability and Joint Strength |
| title_full | Modified Silane Polymer Adhesive: Effect of Aluminum
Substrate Treatment Methods and the Adhesive
Thickness on Adhesive Durability and Joint Strength |
| title_fullStr | Modified Silane Polymer Adhesive: Effect of Aluminum
Substrate Treatment Methods and the Adhesive
Thickness on Adhesive Durability and Joint Strength |
| title_full_unstemmed | Modified Silane Polymer Adhesive: Effect of Aluminum
Substrate Treatment Methods and the Adhesive
Thickness on Adhesive Durability and Joint Strength |
| title_short | Modified Silane Polymer Adhesive: Effect of Aluminum
Substrate Treatment Methods and the Adhesive
Thickness on Adhesive Durability and Joint Strength |
| title_sort | modified silane polymer adhesive effect of aluminum substrate treatment methods and the adhesive thickness on adhesive durability and joint strength |
| topic | adhesive modified silane polymer joint strength surface treatment bond line thickness |
| url | http://jips.ippi.ac.ir/article_1792_5f38f43a8f04d1d1eae76bef283a724c.pdf |
| work_keys_str_mv | AT maryamkhaghanipour modifiedsilanepolymeradhesiveeffectofaluminumsubstratetreatmentmethodsandtheadhesivethicknessonadhesivedurabilityandjointstrength AT alisalimi modifiedsilanepolymeradhesiveeffectofaluminumsubstratetreatmentmethodsandtheadhesivethicknessonadhesivedurabilityandjointstrength |