Bio-degradation of polyurethane on bio-epoxy
Polyurethanes have been synthesized in a multi-stage process from a series of vegetable oil sourced locally, namely virgin oil polymer (VOP), popia oil polymer (POP), mixed oil polymer (MOP), and waste oil polymer (WOP). The biodegradability of thin films of the biopolymers was measured by the soil...
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| Format: | Thesis |
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Ministry of Higher Education Malaysia
2011
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| Online Access: | http://eprints.uthm.edu.my/3855/ |
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| Summary: | Polyurethanes have been synthesized in a multi-stage process from a series of vegetable oil sourced locally, namely virgin oil polymer (VOP), popia oil polymer (POP), mixed oil polymer (MOP), and waste oil polymer (WOP). The biodegradability of thin films of the biopolymers was measured by the soil burial test (EN ISO 846:1997). The percentage weight loss of VOP in compost soil was significantly greater than in peat. In the compost medium, the weight loss after 80 days immersion was, for VOP 51.2%, for POP 25.8%, for MOP 30.5%, and for WOP 19.9%. This is due to the compost soil site generally contains various types of micro organisms compared to peat soil. This results demonstrates that virgin and waste biopolymers can be utilised in the agricultureal sector as mulching film, compost garbage, bio-pot, etc. |
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