Transcript Shark Solutions PVB Recyling DISPERSION

Welcome to Shark Solutions Group
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• Shark Solutions A/S is a Danish based
innovative cleantech market leader in
recycling post-consumer laminated PVB
(PolyVinyl Bytural) and glass from
windshields and laminated
architectural/building glass.
• Our main business is operating PVB
recycling factories in Europe and (soon)
USA, where we manufacture PVB for
many industrial applications, which is then
sold worldwide.
Shark Solutions;
leading supplier of advanced PVB raw materials
Plastic products
Paint, primers & coatings
Solar Cells
Carpet Backing
So, what can damaged windshields be transformed into?
Let us help you build PVB into your products!
Recycled PVB…
What can PVB be used for?
Where does PVB come from?
Which type raw materials are
available from recycled PVB?
Characteristics about Shark’s post
consumer PVB!
Can I count on quality consistency?
Shark Solutions;
leading supplier of advanced PVB raw materials
Windshields are considered “Laminated Glass”.
A thin transparent layer of PVB (Polyvinyl Butyral)
adhesive thermoplastic is sandwiched between
two sheets of glass. The PVB holds the glass
together in an accident. PVB adhesive is what
makes recycling windshields difficult.
Lamination of glass with PVB is required in
windshields (since 1930…) for safety. Use of
laminated glass in cars is growing globally as a
result of increasing applications to reduce sound in
side windows and rear windows.
Laminated glass is also widely used in buiding
glass for safely, sound reduction and UV
protection. About 50% of recycled laminated
glass comes from building industry!
Function and history of laminated glass!
Polyvinyl butyral (or PVB) is a resin usually used for
applications that require strong binding, optical clarity,
adhesion to many surfaces, toughness and flexibility. It
is prepared from polyvinyl alcohol by reaction with
butyraldehyde. Polyvinyl Butyral (PVB) was pioneered
by Solutia as the key ingredient for automotive safety
glass interlayers.
Generic (virgin) applications include:
 Laminated glass for automotive and architectural
applications – and for solar modules
 Coating for lumber, metals, concrete and many other
surfaces
 Binder for inks, paints and coatings
 Binders and adhesives for metals, glass and many
other materials
As a recycled product PVB can be
used to substitute many other
types of resins / additives for
increased toughness and
flexibility.
Shark Solutions is using a
recycled raw material
• not expensive and volatile
virgin raw materials
• recycled PVB competes with
e.g. PVC compounds and many
other raw materials; much
cheaper than virgin PVB.
What IS PVB (PolyVinyl Butyral)
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The Shark Solutions Program helps keep our
planet clean & saves resources for future generations
• PVB Resin
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strong binder
optical clarity as virgin
adhesion to various surfaces
extreme toughness and flexibility
water and corrosion resistance
UV resistance
sound absorbing
Some “memory” in this nature
• Recycled PVB is plasticized
• Reduce VOC’s, no Chlorine or Phthalates
PVB Characteristics & Values
Crushed Glass Cullet
Recycled PVB Flakes
Laminated Glass Separated into Cullet & PVB Clean Flakes
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PVB Pellets
PVB Film
PVB Dispersion (liquid)
Shark Solutions Advanced Recycled PVB Products
– ready-to-use as raw materials
Recycled Shark Solutions PVB raw material characteristics:
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Recycled PVB is two to three parts of resin and one part plasticizer
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Shark Solutions developed a patentable industrialized and sophisticated technology
to ”clean” the PVB from impurities of glass, rubber, silicone, and other contamination
which will always be present in small amounts.
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Shark PVB quality is continually improving and based on application requirements.
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Process parameters, repeat lab testing and 3rd party outside labs are used to qualify,
monitor and control within tight specifications.
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Current specification PVB dispersion
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filtered removing any contamination >200 microns
average d50 PVB particle size <0,15 microns (SharkDispersionMW)
”Characteristics” about Shark’s Recycled PVB13
Comparison between virgin grade of PVB, PVC and recycled PVC & PVB
Carbon footprint
Water based PVB dispersion for applications as
• Co-binder in water
borne paints and coatings
• Peelable coating &
• Primers (e.g. dust control)
Products & Services
• PVB dispersion offers advantages and can be used as a co-binder
along with other binders.
• Works with Acrylic, Styrene Acrylic emulsions, PVA emulsions, Epoxy
Acrylics and generally the compatibility is excellent.
• Generally as a good starting point we recommend to replace 10-30 %
of current binder – solids to solids. Most likely you should be able to
save part of or all of the film forming agents when Shark dispersion is
used as a co-binder.
• Shark Dispersion can be used for paints as the direct carrier for color
substances, antistatic or conditioners. The Dispersions are forming a
uniform film during the drying phase with the help from film forming
agents: Coalescing agents or plasticizers. In that respect the films can
act as adhesives to some substrates. The main advantages of PVB
compared to other resins are:
• extremely high flexibility combined with
• film toughness
• no tackiness
• excellent blocking resistance
PVB Dispersion – as co-binder…
• Formulating guide-lines
• Replace 10 – 30% of current binder on solids
to solids
• Remove any other coalescing agents or
plasticisers from the formulation
• Avoid kationic components
• Select dispersing and wetting agents carefully
• Test defoamers for suitability
• Dilute Rheology Modifiers and thickeners with
water before addition
• Add RM’s every slowly under stirring
PVB Dispersion – as co-binder…
”Issues” about Recycled PVB
As we use recycled raw material there are certain characteristics you – as a
customer/user – need to be aware of:
• We do not change the chemistry of the material i.e. the PVB is plastizized (est. 25%)
• Variances in product chemistry is natural since our raw material is blend from various
virgin manufacturers products
• Shark Solutions has developed an industrialized and sophisticated know how about
how to ”clean” the PVB from impurities of glass, rubber, silicones and other
contamination which will always be present in a recycled raw material supply stream;
e.g. other polymers/plastics, wood chips, metals, etc.
• We constantly improve the quality level i.e. reduce level of contamination. At the
moment our specifications are for our PVB-flakes:
– C3 grade; contamination <4%. Moisture contained <3%.
– C2 grade; contamination <1%. Moisture contained <3%.
– C1 grade; contamination <0,5%. Moisture contained <8%.
As part of above mentioned contamination is in all cases <0,1% glass!
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For further cleaned products we offer our PVB e.g. as pellets/granules, which are
extruded and thus beeing filtered, which takes away any impurities >110 microns and
moisture level gets below 2%.
We also provide PVB as a water based PVB dispersion; in this case the dispersion is
filtered removing any contamination >200 microns – with average d50 PVB particle
size <0,15 microns (SharkDispersionMW)
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Headquarters & PVB Operation, Denmark
PVB Operation, Belgium, Lommel
Glass & PVB Operations, USA, Lavonia
Production sites in Denmark, Belgium, USA..
Shark has developed
numerous applications
for PVB – substituting
different raw materials
and thus making the
business case stable to
changing market
conditions!
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The Shark Solutions Program helps keep our
planet clean & saves resources for future generations