Transcript Folie 1 - Comunidades.net

Organic Stabilisers – the Key to
Building a Sustainable Future
> > more than additives
Sustainability assessment of stabiliser systems
Organic stabilisers allow the review of all additives
consistent with attaining long-term sustainability.
OBS allows producers the scope to phase out longterm substances that can accumulate in nature and
where there is reasonable doubt regarding toxic
effects of additives.
The methodology can be based on a robust set of
principles known as The Natural Step (TNS).
The use of OBS stabilisers considerably enhances
the overall sustainability of the PVC matrix, when
PVC is measured against alternative building
materials.
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The Ultimate Goal – a long term visionary perspective
Ideal proposal of developing a perfect PVC polymer
chain to increase the intrinsic heat stability of PVC.
The above achievement would make the need of a
heat stabiliser superfluous, only rheology and
processing additives would be required.
In the meantime, a fully sustainable Organic heat
stabiliser system is evolving bridging the above
technology gap, reducing embodied energy inputs.
OBS contains no heavy metals by definition.
OBS has the potential to fulfill most of the system
conditions for short, medium and longterm goals.
OBS has the best potential not to migrate into the
environment longer-term.
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The Sustainable Future
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OBS Constituents used to improve overall sustainability
The Organic back-bone Uracil derivative (DMAU) was initially
derived as a by-product of caffein separation from coffee beans.
Co-stabilisers such as zeolites are used to enhance the
properties of the Organic stabiliser systems.
Currently, the world’s annual production of natural zeolite is
about 4 million tons. Of this quantity, 2.6 million tons are
shipped to Chinese markets to be used in the concrete industry.
Eastern Europe, Western Europe, Australia, and Asia are world
leaders in supplying the world’s demand for natural zeolite.
The Calcium Stearate component used in OBS is based on palmoil derived stearic acid, a renewable resource also used for biodiesel production and palm cooking oil.
Some of the traditional paraffin waxes used in stabilisers can be
replaced with natural bees-wax.
The absence of metals such as Lead, Tin and Zinc further
reduces the burden on non-renewable resources, less mining.
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OBS Constituents – cont’d.
No synthetic anti-oxidants used (Bis-phenol A), etc.
All additives either NSF, FDA (USA), and EU positive
listed for potable water contact applications.
Some of the esterwaxes produced from the palm
stearine bases are used in cosmetic applications
and have replaced straight petroleum hydrocarbon
external lubricants required for processing.
The manufacturing process for the OBS stabiliser
composite is a “cold” process requiring no melting
nor insitu-reaction of the raw materials, unlike
traditional Lead-based and Tin-based stabilisers.
OBS stabilisers are described as totally non-toxic
and non-hazardous according to Worksafe criteria
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Material Classification and Labeling Requirements
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Stabiliser Systems for Pipes
Traditional
• Pb
• Sn
Developing
• CaZn
New Technology
• Organic based primary stabilising combinations
- totally heavy-metal free non hazardous ingredients
- from this technology a truly sustainable stabiliser system is being developed.
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Organic Based Stabiliser OBS for Pipes
The organic based system “OBS® ” based on Uracil is total heavy metal free.
OBS is THE answer to the high environmental requirements of modern society.
OBS fulfils all requirements of relevant standards required for proper processing
E.g. European Drinking Water pressure and DWV pipes
mechanical properties
hygiene (influence on water)
• fracture toughness
EN 1452 
• Vicat temperature
EN 1452 
• impact strength
EN 1452 
• pressure resistance
EN 1452 
• long term hydrostatic ISO 9080 
strength MRS > 25 MPa
colour, turbidity
colour, flavour
Cl-consumption
TOC
bacterial growth
EN 13052-1 
EN 1420-19 
KTW, ÖN 5014 
KTW, ÖN 5014 
KTW 
KIWA 
BS 6920 
B/WA 13.06.2005
slide 5
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Pb vs Sn vs CaZn vs OBS
heat stability
Pb
++
initial colour
+
++
0 to ++*
0 to ++*
colour hold
++
++
0 to ++*
0 to ++*
processing
++
0 to +
+
+ to ++
limited
limited
ok
ok
++
++
++
++
compatibility
mixing department
++
mechanical properties
++
Sn
+
CaZn
+
OBS
+
0
+ to ++
light stability
+
0
+
+
cost efficiency
++
+
0
0
-
0
+
++
health/safety/environment
Both CaZn and OBS
are seen as proper lead
alternatives.
Whereas OBS due to its
most favourable
toxicological data
and the absence of any
heavy metal outweighs
CaZn.
*) can be adjusted
++ excellent + good 0 average - poor
B/WA 13.06.2005
> > more than additives
slide 6
Organic Based Stabiliser OBS
Positive Experience on Industrial Scale
type of pipe
smooth & compact
sewer/pressure <400 mm
sewer/pressure >400 mm
PVC-o pressure
PVC-m pressure
ePipes
corrugated
land drain
ePipes
structured wall pipes
fcp
twin wall
ultrarib
short
term
long
term













OBS is the most
advanced heavy
metal free system.
Regular sales
since 2002.

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
B/WA 13.06.2005
slide 7
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®
OBS
Organostab
®
The Future
The Chemson Group is working to enhance and secure the long-term sustainability of PVC
by replacing Lead stabilisers with Organic and Calcium Zinc stabiliser Developments.
> > more than additives
Lead Alternatives for Pipes
Thank you !
B/WA 20.04.2005
B/WA 13.06.2005
> more
than additives
> > more> than
additives
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