A study on the effects of environment on curing characteristics of thixotropic and room temperature cured epoxy-based adhesives using DMTA
This study investigated the thermal properties of three room temperature curing adhesives containing nano-particles which were thixotropic and shear thinning which allowed injection into overhead holes when exposed to different environmental conditions. Viscosity and shear stress of the adhesives we...
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| Format: | Article |
| Language: | English |
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Academy of Sciences Malaysia
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/29183/1/A%20study%20on%20the%20effects%20of%20environment%20on%20curing%20characteristics%20of%20thixotropic%20and%20room%20temperature%20cured%20epoxy-based%20adhesives%20using%20DMTA.pdf |
| _version_ | 1796971486988206080 |
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| author | Ahmad, Zakiah Hassan, Rohana Md. Tahir, Paridah |
| author_facet | Ahmad, Zakiah Hassan, Rohana Md. Tahir, Paridah |
| author_sort | Ahmad, Zakiah |
| collection | UPM |
| description | This study investigated the thermal properties of three room temperature curing adhesives containing nano-particles which were thixotropic and shear thinning which allowed injection into overhead holes when exposed to different environmental conditions. Viscosity and shear stress of the adhesives were measured as a function of shear rate. The thermal behaviour of the adhesives were measured using dynamic mechanical thermal analysis following exposure to different temperatures and humidities which included temperatures of 20°C. 30°C and 50°C, relative humidities of 65% RH, 75% RH and 95% RH, soaked in water at 20°C and placed in the oven at 50°C. The dynamic thermal properties reported include storage and loss modulus, the loss tangent and the glass transition temperature (Tg). For nano- and micro-particles filled adhesives, the Tg increased with the temperature increase, even though the adhesives were subjected to high humidity and this was due to further cross-linking. The results showed that room temperature cured epoxies were only partially cured at room temperature. |
| first_indexed | 2024-03-06T08:13:45Z |
| format | Article |
| id | upm.eprints-29183 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:13:45Z |
| publishDate | 2013 |
| publisher | Academy of Sciences Malaysia |
| record_format | dspace |
| spelling | upm.eprints-291832016-06-20T06:51:27Z http://psasir.upm.edu.my/id/eprint/29183/ A study on the effects of environment on curing characteristics of thixotropic and room temperature cured epoxy-based adhesives using DMTA Ahmad, Zakiah Hassan, Rohana Md. Tahir, Paridah This study investigated the thermal properties of three room temperature curing adhesives containing nano-particles which were thixotropic and shear thinning which allowed injection into overhead holes when exposed to different environmental conditions. Viscosity and shear stress of the adhesives were measured as a function of shear rate. The thermal behaviour of the adhesives were measured using dynamic mechanical thermal analysis following exposure to different temperatures and humidities which included temperatures of 20°C. 30°C and 50°C, relative humidities of 65% RH, 75% RH and 95% RH, soaked in water at 20°C and placed in the oven at 50°C. The dynamic thermal properties reported include storage and loss modulus, the loss tangent and the glass transition temperature (Tg). For nano- and micro-particles filled adhesives, the Tg increased with the temperature increase, even though the adhesives were subjected to high humidity and this was due to further cross-linking. The results showed that room temperature cured epoxies were only partially cured at room temperature. Academy of Sciences Malaysia 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/29183/1/A%20study%20on%20the%20effects%20of%20environment%20on%20curing%20characteristics%20of%20thixotropic%20and%20room%20temperature%20cured%20epoxy-based%20adhesives%20using%20DMTA.pdf Ahmad, Zakiah and Hassan, Rohana and Md. Tahir, Paridah (2013) A study on the effects of environment on curing characteristics of thixotropic and room temperature cured epoxy-based adhesives using DMTA. ASM Science Journal, 7 (1). pp. 37-58. ISSN 1823-6782 http://www.akademisains.gov.my/asmsj/index.php/published-articles |
| spellingShingle | Ahmad, Zakiah Hassan, Rohana Md. Tahir, Paridah A study on the effects of environment on curing characteristics of thixotropic and room temperature cured epoxy-based adhesives using DMTA |
| title | A study on the effects of environment on curing characteristics of thixotropic and room temperature cured epoxy-based adhesives using DMTA |
| title_full | A study on the effects of environment on curing characteristics of thixotropic and room temperature cured epoxy-based adhesives using DMTA |
| title_fullStr | A study on the effects of environment on curing characteristics of thixotropic and room temperature cured epoxy-based adhesives using DMTA |
| title_full_unstemmed | A study on the effects of environment on curing characteristics of thixotropic and room temperature cured epoxy-based adhesives using DMTA |
| title_short | A study on the effects of environment on curing characteristics of thixotropic and room temperature cured epoxy-based adhesives using DMTA |
| title_sort | study on the effects of environment on curing characteristics of thixotropic and room temperature cured epoxy based adhesives using dmta |
| url | http://psasir.upm.edu.my/id/eprint/29183/1/A%20study%20on%20the%20effects%20of%20environment%20on%20curing%20characteristics%20of%20thixotropic%20and%20room%20temperature%20cured%20epoxy-based%20adhesives%20using%20DMTA.pdf |
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