Citation
Al-Malaika S., . and Amir E. J., . Thermoplastic elastomers I. Effect of processing variables on tensile properties of natural rubber/polypropylene blends. pp. 104-121. ISSN 0127-7065
Abstract
The effect of processing conditions and type of mixers on the mechanical performance of different compositions of natural rubber/polypropylene (NR/PP) blends are investigated. The use of 0.3 dicumyl peroxide in 60 natural rubber blends under optimised processing conditions resulted in the best mechanical performance of the blend. High shearing rate mixers (Buss-Ko kneader) afforded blends with higher initial mechanical performance compared with a laboratory-scale internal mixer (Hampden-RAPRA torque rheometer). The evidence presented indicates the lack of interpolymer formation during the mechano-chemical process although a small amount of NR undergoes crosslinking during the processing operation. Both melt stability and mechanical properties of NR/PP blends are adversely affected on remoulding: reinjection showed much greater deterioration compared to recompression albeit high initial mechanical properties of the injection moulded samples.
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Abstract
The effect of processing conditions and type of mixers on the mechanical performance of different compositions of natural rubber/polypropylene (NR/PP) blends are investigated. The use of 0.3 dicumyl peroxide in 60 natural rubber blends under optimised processing conditions resulted in the best mechanical performance of the blend. High shearing rate mixers (Buss-Ko kneader) afforded blends with higher initial mechanical performance compared with a laboratory-scale internal mixer (Hampden-RAPRA torque rheometer). The evidence presented indicates the lack of interpolymer formation during the mechano-chemical process although a small amount of NR undergoes crosslinking during the processing operation. Both melt stability and mechanical properties of NR/PP blends are adversely affected on remoulding: reinjection showed much greater deterioration compared to recompression albeit high initial mechanical properties of the injection moulded samples.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Natural rubber |
| AGROVOC Term: | Polypropylene |
| AGROVOC Term: | Elastomers |
| AGROVOC Term: | Blending |
| AGROVOC Term: | Processing |
| AGROVOC Term: | Varieties |
| AGROVOC Term: | Mixers |
| AGROVOC Term: | Laboratory equipment |
| AGROVOC Term: | Cross-linking |
| AGROVOC Term: | Moulding |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 06:28 |
| URI: | http://webagris.upm.edu.my/id/eprint/23601 |
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