| Title: | Reduction of VOC emission from natural flours filled biodegradable bio-composites for automobile interior |
| Author(s): | Kim KW; Lee BH; Kim S; Kim HJ; Yun JH; Yoo SE; Sohn JR; |
| Address: | "Laboratory of Adhesion and Bio-Composites, Program in Environmental Materials Science, Seoul National University, Seoul 151-921, Republic of Korea" |
| DOI: | 10.1016/j.jhazmat.2010.07.075 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| Abstract: | "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/m(2)h to 4.11 mg/m(2)h with increasing temperature. For both PLA bio-composites with pineapple flour and destarched cassava flour, the temperature increased from 0.30 mg/m(2)h to 3.72 mg/m(2)h and from 0.19 mg/m(2)h to 8.74 mg/m(2)h, respectively. The TVOC emission factors of all samples increased gradually with increasing temperature. Above 70 degrees 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 degrees C to 90 degrees 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 degrees C and baking time 5h). 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 20L 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)" |
| Keywords: | Absorption *Automobiles *Flour Temperature Volatile Organic Compounds/*chemistry; |
| Notes: | "MedlineKim, Ki-Wook Lee, Byoung-Ho Kim, Sumin Kim, Hyun-Joong Yun, Ju-Ho Yoo, Seung-Eul Sohn, Jong Ryeul eng Research Support, Non-U.S. Gov't Netherlands 2010/08/27 J Hazard Mater. 2011 Mar 15; 187(1-3):37-43. doi: 10.1016/j.jhazmat.2010.07.075. Epub 2010 Aug 23" |
