Reinforcement of polyether polyurethane with dopamine-modified clay : the role of interfacial hydrogen bonding
Dopamine-modified clay (D-clay) was successfully dispersed into polyether polyurethane (PU) by solvent blending. It is found that the incorporation of D-clay into PU gives rise to significant improvements in mechanical properties, including initial modulus, tensile strength, and ultimate elongation,...
| Main Authors: | , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
|
| Online Access: | https://hdl.handle.net/10356/97037 http://hdl.handle.net/10220/10271 |
| _version_ | 1826124052512636928 |
|---|---|
| author | Phua, Si Lei Yang, Liping Toh, Cher Ling Huang, Shu Tsakadze, Zviad Lau, Soo Khim Mai, Yiu-Wing Lu, Xuehong |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Phua, Si Lei Yang, Liping Toh, Cher Ling Huang, Shu Tsakadze, Zviad Lau, Soo Khim Mai, Yiu-Wing Lu, Xuehong |
| author_sort | Phua, Si Lei |
| collection | NTU |
| description | Dopamine-modified clay (D-clay) was successfully dispersed into polyether polyurethane (PU) by solvent blending. It is found that the incorporation of D-clay into PU gives rise to significant improvements in mechanical properties, including initial modulus, tensile strength, and ultimate elongation, at a very low clay loading. The large reinforcement could be attributed to the hydrogen bonds between the hard segments of PU and stiff D-clay layers that lead to more effective interfacial stress transfer between the polymer and D-clay. Besides, the interactions between D-clay and PU are also stronger than those between Cloisite 30B organoclay and the PU chains. Consequently, at a similar clay loading, the PU/D-clay nanocomposite has much higher storage modulus than the PU/organoclay nanocomposite at elevated temperatures. |
| first_indexed | 2024-10-01T06:14:41Z |
| format | Journal Article |
| id | ntu-10356/97037 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:14:41Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/970372020-06-01T10:21:25Z Reinforcement of polyether polyurethane with dopamine-modified clay : the role of interfacial hydrogen bonding Phua, Si Lei Yang, Liping Toh, Cher Ling Huang, Shu Tsakadze, Zviad Lau, Soo Khim Mai, Yiu-Wing Lu, Xuehong School of Materials Science & Engineering Dopamine-modified clay (D-clay) was successfully dispersed into polyether polyurethane (PU) by solvent blending. It is found that the incorporation of D-clay into PU gives rise to significant improvements in mechanical properties, including initial modulus, tensile strength, and ultimate elongation, at a very low clay loading. The large reinforcement could be attributed to the hydrogen bonds between the hard segments of PU and stiff D-clay layers that lead to more effective interfacial stress transfer between the polymer and D-clay. Besides, the interactions between D-clay and PU are also stronger than those between Cloisite 30B organoclay and the PU chains. Consequently, at a similar clay loading, the PU/D-clay nanocomposite has much higher storage modulus than the PU/organoclay nanocomposite at elevated temperatures. 2013-06-12T07:09:56Z 2019-12-06T19:38:07Z 2013-06-12T07:09:56Z 2019-12-06T19:38:07Z 2012 2012 Journal Article Phua, S. L., Yang, L., Toh, C. L., Huang, S., Tsakadze, Z., Lau, S. K., Mai, Y. W., & Lu, X. (2012). Reinforcement of Polyether Polyurethane with Dopamine-Modified Clay: The Role of Interfacial Hydrogen Bonding. ACS Applied Materials & Interfaces, 4(9), 4571-4578. Phua, S. L., Yang, L., Toh, C. L., Huang, S., Tsakadze, Z., Lau, S. K., et al. (2012). Reinforcement of Polyether Polyurethane with Dopamine-Modified Clay: The Role of Interfacial Hydrogen Bonding. ACS Applied Materials & Interfaces, 4(9), 4571-4578. 1944-8244 https://hdl.handle.net/10356/97037 http://hdl.handle.net/10220/10271 10.1021/am300947b en ACS applied materials & interfaces © 2012 American Chemical Society. |
| spellingShingle | Phua, Si Lei Yang, Liping Toh, Cher Ling Huang, Shu Tsakadze, Zviad Lau, Soo Khim Mai, Yiu-Wing Lu, Xuehong Reinforcement of polyether polyurethane with dopamine-modified clay : the role of interfacial hydrogen bonding |
| title | Reinforcement of polyether polyurethane with dopamine-modified clay : the role of interfacial hydrogen bonding |
| title_full | Reinforcement of polyether polyurethane with dopamine-modified clay : the role of interfacial hydrogen bonding |
| title_fullStr | Reinforcement of polyether polyurethane with dopamine-modified clay : the role of interfacial hydrogen bonding |
| title_full_unstemmed | Reinforcement of polyether polyurethane with dopamine-modified clay : the role of interfacial hydrogen bonding |
| title_short | Reinforcement of polyether polyurethane with dopamine-modified clay : the role of interfacial hydrogen bonding |
| title_sort | reinforcement of polyether polyurethane with dopamine modified clay the role of interfacial hydrogen bonding |
| url | https://hdl.handle.net/10356/97037 http://hdl.handle.net/10220/10271 |
| work_keys_str_mv | AT phuasilei reinforcementofpolyetherpolyurethanewithdopaminemodifiedclaytheroleofinterfacialhydrogenbonding AT yangliping reinforcementofpolyetherpolyurethanewithdopaminemodifiedclaytheroleofinterfacialhydrogenbonding AT tohcherling reinforcementofpolyetherpolyurethanewithdopaminemodifiedclaytheroleofinterfacialhydrogenbonding AT huangshu reinforcementofpolyetherpolyurethanewithdopaminemodifiedclaytheroleofinterfacialhydrogenbonding AT tsakadzezviad reinforcementofpolyetherpolyurethanewithdopaminemodifiedclaytheroleofinterfacialhydrogenbonding AT lausookhim reinforcementofpolyetherpolyurethanewithdopaminemodifiedclaytheroleofinterfacialhydrogenbonding AT maiyiuwing reinforcementofpolyetherpolyurethanewithdopaminemodifiedclaytheroleofinterfacialhydrogenbonding AT luxuehong reinforcementofpolyetherpolyurethanewithdopaminemodifiedclaytheroleofinterfacialhydrogenbonding |