Oxo-degradable Additive - OXIUM 100% Degradable Plastic

6003
Oxo-degradable Additive
General
Polymers or plastic are high molecules, and very stable and inert
to normal environments. This is important property of polymer
resins to convert into many different types of articles. In the
packaging industry, while it is important to use polymers for films,
bottles, caps for consumer products; it can be an environment
problem as the packages remain very stable after use. In certain
applications, it is desirable to enable the polymer package to be
self degradable after usage for a certain period of time.
Description
OXIUM additive is a degradable additive concentrate for
polyolefins.
Physical Form
Pellets
Applications
All disposable polyolefin product. Blown film, cast film, shopping
bag.
Dosage
3 – 10 % for normal loading, depending on degradation
requirement.
Additional
Processing
Information
OXIUM can be mixed with a resin and processed under normal
operating conditions of polyolefin resins.
Very little or no change of temperature profile is necessary in the
extrusion process. The product is non-toxic and requires no
additional safety equipment.
Remark
Oxium Additives currently come in 25 kg packing. It should be
stored in a cool and dry place, away from direct sunlight. Shelflife of the product is about 1 year under this storage condition.
Oxodegradable
Process
Oxidative chain breaking which triggered by heat, sun light or
enhance mechanical stress linked to molecular weight reduction.
Noted that after being process, plastics film/bags which contains
3-10% of Oxium additives should last about 2 years depending
on storage conditions.
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Degradation profile of LDPE / HDPE film which containing an oxodegradable additive
OXIUM under accelerated QUV testing equipment.
LDPE WITH OXIUM DEGRADATION UNDER ACCELARATED QUV
TESTING
3000
3500
3000
2500
2000
1500
1500
1000
% E L O N G A T IO N
T E N S IL E S T R E N G T H - g f
2500
2000
1000
500
500
0
0
0
48
120
ELAPSED TIME - HOURS
TENSILE STRENGTH
% ELONGATION
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Phone : (62-21) 596 0573 – 76  Fax : (62-21) 596 0572
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Actual field test according to ASTM D-5208 : Standard Practice For Exposure Of
Photodegradable Plastics.
HDPE WITH OXIUM DEGRADATION UNDER ACTUAL FIELD
TEST
TENSILESTRENGTH- gf
2500
2000
1500
1000
500
0
0
30
60
ELAPSED TIME - DAY
OXIUM
WITHOUT OXIUM
HDPE WITH OXIUM DEGRADATION UNDER ACTUAL FIELD
TEST
% ELONGATION
500%
400%
300%
200%
100%
0%
0
30
60
ELAPSED TIME - DAY
OXIUM
WITHOUT OXIUM
Conclusion : (see photos of actual field test on next page)
Smaller count of Tensile Strength and smaller percentage of Elongation mean
weaker strength of the film – leading to degradation. The sample film with
Oxium additive tested above comply with the passing criteria of the ASTM D5208 (Standard Practice For Exposure Of Photodegradable Plastics).
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Phone : (62-21) 596 0573 – 76  Fax : (62-21) 596 0572
www . tirtamarta . com  E-mail : info @ tirtamarta.com
Progressive Degradation of LDPE/HDPE Film with
6003
(ASTM D-5208, Standard Practice for Exposure of Photo degradable Plastics)
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Phone : (62-21) 596 0573 – 76  Fax : (62-21) 596 0572
www . tirtamarta . com  E-mail : info @ tirtamarta.com