Test Data

 

Test with a mulch film (thickness 20㎛) 

 

 

 

 

 

 

 

 

 

 

 

 

                 

                             

                           July 19, 2014                                                                  August 19, 2014                                                                 August 26, 2014                                         

The above pictures show the decomposition process of the mulch film we have installed to test ourselves in 2014.

In 2013, before that, we provided our mulch film for a research at a Canadian university and got some test results as below in a report of 'Analysis of Aspergillus oryzae degradation of commercial agricultural mulch films composed of poly(butylene adipate-co-terephthalate) and poly(lactic acid)'.

"Though not a direct measure of biodegradation, the loss in mass of the mulch film supports the indication of biodegradation

via hydrolysis of the ester bonds.

Of the vessel incubation (44 days), Willeap film showed the greatest change in mass, being significantly greater than that of the

Abcde film (p =0.014) (Table 4).

 

During the cutinase assay incubation (15 days), Willeap film showed an even greater significant change in mass than either film

in vessel incubation (p = 0.006)."

 

Source: Hatheway, Savannah, 2014, Analysis of Aspergillus oryzae degradation of commercial agricultural mulch films composed of poly(butylene adipate-co-terephthalate) and poly(lactic acid), 15p

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