Various experiments, such as the thermal extract (TE) method, field and emission cell (FLEC) method and 20 L small chamber, were performed to examine the total volatile organic compound (TVOC) emissions from bio-composites. The TVOC of neat poly(lactic acid) (PLA) was ranged from 0.26 mg/m2 h to 4.11 mg/m2 h with increasing temperature. For both PLA bio-composites with pineapple flour and destarched cassava flour, the temperature increased from 0.30 mg/m2 h to 3.72 mg/m2 h and from 0.19 mg/m2 h to 8.74 mg/m2 h, respectively. The TVOC emission factors of all samples increased gradually with increasing temperature. Above 70 °C, both PLA-P and PLA-C composites had higher TVOC emission factors than neat PLA due to the rapid emission of natural volatile organic compounds (VOCs), such as furfural (2-furancarboxyaldehyde). PLA composites containing 30 wt% flour had high 1,4-dioxane reduction ability, >50%. The TVOC of poly(butylene succinate) (PBS) was emitted rapidly from 50 °C to 90 °C due to succinic acid from the pyrolysis of PBS. The TVOC emission factors of PLA bio-composite and PBS bio-composites were reduced using the bake-out method (temperature at 70 °C and baking time 5 h). The initial TVOC emission factors of the PLA and PBS bio-composites with pineapple flour and destarched cassava flour were reduced by the baking treatment using FLEC. The TVOC factors from PLA and PBS decreased until 5 days and were commonly maintained a relatively constant value after 5 days using 20 L small chamber. The decrease in TVOC emission showed a similar trend to that of the TE and FLEC method. This method confirmed the beneficial effect of the baking treatment effect for polypropylene and linear density polyethylene (LDPE).


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    Title :

    Reduction of VOC emission from natural flours filled biodegradable bio-composites for automobile interior


    Additional title:

    Verminderung der VOC-Emission von biologisch abbaubaren Bioverbundwerkstoffen, gefüllt mit Pflanzenmehlen, für die Kraftfahrzeug-Innenausstattung


    Contributors:

    Published in:

    Publication date :

    2011


    Size :

    7 Seiten, 9 Bilder, 6 Tabellen, 18 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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