Biodecomposed Polymeric Compositions on the Basis of Agriculture’s Waste - Progress in Organic and Physical Chemistry: Structures and Mechanisms - page 142

There is a composition on the basis of polyethylene waste containing 30% of agro-
industrial complex waste (rice shuck) in the Figure 1(a).
There is a composition on the basis of polyethylene waste containing 30% of agro-
industrial complex waste (rice shuck) and 2% of colloidal clay in the Figure 1 (b).
Consequently, infusion of colloidal clay has led not only to uniform distribution of
agroindustrial complex waste, but also has allowed to increase breakdown voltage and
percent elongation with rupture in 2-3 times (Table 1).

TABLE 1 Physico-mechanical properties of polymer compositions on the basis of agroindustrial
complex waste and polyethylene.

Colloidal clay in poly-
mer compositions

Breakdown voltage
ı ɪ , MPa

Percent elongation with
rupture, İ ɪ , %

Filler's name*

Beet bin pulp - 1,30±0,08 9,80±0,10

+ 4,75±0,08 11,25±0,09

Rice shuck - 2,00±0,07 8,70±0,09

+ 6,00±0,15 16,50±0,11

Cacao bean
husk

- 1,60±0,08 11,00±0,12

+ 6,00±0,09 16,00±0,09

* - The amount of filler in polymer compositions is 30%.

To estimate dynamics of the ¿ lled polymeric compositions biodegradation com-
posting was used. Samples were placed in special mallets with biohumus at tempera-
ture 23 ± 2ºɋ and humidity 70 ± 10%. Degree of polymeric compositions biodegrada-
tion was estimated by change of physico-mechanical properties such as breakdown
voltage and percent elongation with rupture. Calculation of biodegradation degree of
composition was made according to the following formula:

aa
a

, (%)

%

1 0

.100

0

where, a is a parameter's meaning before composting:
a is parameter's meaning after composting.
In the Table 2, results of polymer compositions biodegradation research on the
basis of polyethylene's containing waste, agroindustrial complex waste, and colloidal
clay as ¿ ller for twelve months are presented.