Interelastomer Reactions Occurring during the Cross-Linking of Hydrogenated Acrylonitrile-Butadiene (HNBR) and Chloroprene (CR) Rubbers Blends in the Presence of Silver(I) Oxide (Ag<sub>2</sub>O) and Mechanical Properties of Cured Products
The purpose of this paper was to examine the possibility of producing new blends of hydrogenated acrylonitrile-butadiene and chloroprene rubbers (HNBR/CR) unconventionally cross-linked with silver(I) oxide (Ag<sub>2</sub>O), and to investigate the physicomechanical properties of the obta...
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MDPI AG
2023-06-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/13/4573 |
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| author | Aleksandra Smejda-Krzewicka Konrad Mrozowski Krzysztof Strzelec |
| author_facet | Aleksandra Smejda-Krzewicka Konrad Mrozowski Krzysztof Strzelec |
| author_sort | Aleksandra Smejda-Krzewicka |
| collection | DOAJ |
| description | The purpose of this paper was to examine the possibility of producing new blends of hydrogenated acrylonitrile-butadiene and chloroprene rubbers (HNBR/CR) unconventionally cross-linked with silver(I) oxide (Ag<sub>2</sub>O), and to investigate the physicomechanical properties of the obtained materials. From the obtained results, it can be concluded that HNBR/CR composites were effectively cured with Ag<sub>2</sub>O, which led to interelastomer reactions, and the degree of binding of HNBR with CR was in the range of 14–59%. The rheometric and equilibrium swelling studies revealed that the cross-linking progress depended on the weight proportion of both elastomers, and the degree of cross-linking was greater with more content of chloroprene rubber in the tested blends. Interelastomer reactions occurring between HNBR and CR improved the homogeneity and miscibility of the tested compositions, which was confirmed by differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) analyses. The tensile strength and hardness of the obtained HNBR/CR/Ag<sub>2</sub>O vulcanizates proportionally increased with the content of CR, while the tear strength showed an inverse relationship. The obtained new, unconventional materials were characterized by significant resistance to thermo-oxidative factors, which was confirmed by the high aging factor. |
| first_indexed | 2024-03-11T01:36:04Z |
| format | Article |
| id | doaj.art-40e19aa733f8413bba54f46d91bb465c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T01:36:04Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-40e19aa733f8413bba54f46d91bb465c2023-11-18T16:56:44ZengMDPI AGMaterials1996-19442023-06-011613457310.3390/ma16134573Interelastomer Reactions Occurring during the Cross-Linking of Hydrogenated Acrylonitrile-Butadiene (HNBR) and Chloroprene (CR) Rubbers Blends in the Presence of Silver(I) Oxide (Ag<sub>2</sub>O) and Mechanical Properties of Cured ProductsAleksandra Smejda-Krzewicka0Konrad Mrozowski1Krzysztof Strzelec2Institute of Polymer and Dye Technology, Lodz University of Technology, Stefanowskiego Street 16, 90-537 Lodz, PolandInstitute of Polymer and Dye Technology, Lodz University of Technology, Stefanowskiego Street 16, 90-537 Lodz, PolandInstitute of Polymer and Dye Technology, Lodz University of Technology, Stefanowskiego Street 16, 90-537 Lodz, PolandThe purpose of this paper was to examine the possibility of producing new blends of hydrogenated acrylonitrile-butadiene and chloroprene rubbers (HNBR/CR) unconventionally cross-linked with silver(I) oxide (Ag<sub>2</sub>O), and to investigate the physicomechanical properties of the obtained materials. From the obtained results, it can be concluded that HNBR/CR composites were effectively cured with Ag<sub>2</sub>O, which led to interelastomer reactions, and the degree of binding of HNBR with CR was in the range of 14–59%. The rheometric and equilibrium swelling studies revealed that the cross-linking progress depended on the weight proportion of both elastomers, and the degree of cross-linking was greater with more content of chloroprene rubber in the tested blends. Interelastomer reactions occurring between HNBR and CR improved the homogeneity and miscibility of the tested compositions, which was confirmed by differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) analyses. The tensile strength and hardness of the obtained HNBR/CR/Ag<sub>2</sub>O vulcanizates proportionally increased with the content of CR, while the tear strength showed an inverse relationship. The obtained new, unconventional materials were characterized by significant resistance to thermo-oxidative factors, which was confirmed by the high aging factor.https://www.mdpi.com/1996-1944/16/13/4573silver(I) oxidechloroprene rubberhydrogenated acrylonitrile-butadiene rubbercross-linking mechanismmorphologythermal analysis |
| spellingShingle | Aleksandra Smejda-Krzewicka Konrad Mrozowski Krzysztof Strzelec Interelastomer Reactions Occurring during the Cross-Linking of Hydrogenated Acrylonitrile-Butadiene (HNBR) and Chloroprene (CR) Rubbers Blends in the Presence of Silver(I) Oxide (Ag<sub>2</sub>O) and Mechanical Properties of Cured Products Materials silver(I) oxide chloroprene rubber hydrogenated acrylonitrile-butadiene rubber cross-linking mechanism morphology thermal analysis |
| title | Interelastomer Reactions Occurring during the Cross-Linking of Hydrogenated Acrylonitrile-Butadiene (HNBR) and Chloroprene (CR) Rubbers Blends in the Presence of Silver(I) Oxide (Ag<sub>2</sub>O) and Mechanical Properties of Cured Products |
| title_full | Interelastomer Reactions Occurring during the Cross-Linking of Hydrogenated Acrylonitrile-Butadiene (HNBR) and Chloroprene (CR) Rubbers Blends in the Presence of Silver(I) Oxide (Ag<sub>2</sub>O) and Mechanical Properties of Cured Products |
| title_fullStr | Interelastomer Reactions Occurring during the Cross-Linking of Hydrogenated Acrylonitrile-Butadiene (HNBR) and Chloroprene (CR) Rubbers Blends in the Presence of Silver(I) Oxide (Ag<sub>2</sub>O) and Mechanical Properties of Cured Products |
| title_full_unstemmed | Interelastomer Reactions Occurring during the Cross-Linking of Hydrogenated Acrylonitrile-Butadiene (HNBR) and Chloroprene (CR) Rubbers Blends in the Presence of Silver(I) Oxide (Ag<sub>2</sub>O) and Mechanical Properties of Cured Products |
| title_short | Interelastomer Reactions Occurring during the Cross-Linking of Hydrogenated Acrylonitrile-Butadiene (HNBR) and Chloroprene (CR) Rubbers Blends in the Presence of Silver(I) Oxide (Ag<sub>2</sub>O) and Mechanical Properties of Cured Products |
| title_sort | interelastomer reactions occurring during the cross linking of hydrogenated acrylonitrile butadiene hnbr and chloroprene cr rubbers blends in the presence of silver i oxide ag sub 2 sub o and mechanical properties of cured products |
| topic | silver(I) oxide chloroprene rubber hydrogenated acrylonitrile-butadiene rubber cross-linking mechanism morphology thermal analysis |
| url | https://www.mdpi.com/1996-1944/16/13/4573 |
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