SOCAL® and WINNOFIL® For Sealant / Adhesive

SOCAL® and WINNOFIL®
For Sealant / Adhesive
PCC Division
Solvay Special Chemicals
Markets
Building / Construction
Structural Glazing
DIY
Insulating glass
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PCC Division
Markets (2)
Automotive
Industrial assembly
Transportation
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PCC Division
Marine + Aerospace
Sealant chemistry
Silicone
Silane terminated Polymers :
MS-Polymer
Silane-terminated polyurethane (SPUR)
Silane-terminated polyether (STPE)
Polyurethane
Polysulfide
Polybutyl
Epoxy…
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PCC Division
Sealant type
Depending on the sealant type, classification of the sealants into
1 C- sealants : 1-component sealants are “ready-to-use” compounds,
reacting under different conditions such as : moisture (Room Temperature
Vulcanisable sealants - RTV sealants), heat, or the removal of solvents.
2 C- sealants : 2-component sealants are composed of two reacting
agents, which have to be mixed before application in order to reach their final
state after a chemical reaction. 2-component sealants are most commonly
delivered in two cans or double-cartridges for separate storage before use.
Some sealants like silicone, silane-terminated
polyurethane are used in RTV sealants
They are highly sensitive to moisture !
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PCC Division
polymer,
Sealant formulation –
typical raw material classes
Component
Polymer
Plasticizer
Filler
Functional mineral :
SOCAL® and WINNOFIL®
Pigment
Adhesion promotor
Drying agent
Other additives
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PCC Division
Function
Physico-chemical behavior
Adjust rheological and
mechanical properties
Extend, reduce costs
Adjust rheology and
mechanical properties
Colour
Improve adhesion
Moisture scavenger
UV resistance…
Which properties are aimed in sealant ?
Rheological properties for anti-slump resistance together with
acceptable viscosity and extrusion rate (gunnability)
Storage stability : stability of the rheological properties with time
and temperature, checked after 1 day, 1 month, 3 months…
Acceptable pot life (processing time before the curing starts) and
curing time
Good adhesion to different substrates
Mechanical properties for the required joint movement tolerance
(tensile strength, modulus, elongation)
Weatherability and ageing resistance
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PCC Division
Benefits of SOCAL® and WINNOFIL®
in sealant
• Easy dispersion into the formulation
• Excellent rheological properties :
• high yield value
• good shear-thinning effect
• rapid recovery
• Good storage stability : rheological properties
retained over time
• Mechanical reinforcement with high tensile
and tear strengths
• The best technical / cost benefits balance
for a Functional Additive
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PCC Division
SOCAL®
SOCAL®
and
and®
WINNOFIL
WINNOFIL®
SOCAL® and WINNOFIL® control
sealant performances
The different characteristics of SOCAL® & WINNOFIL® (particle size, morphology,
coating content) allow to cover a wide range of sealants properties like rheology,
dispersion and modulus requirements.
Importance of the choice of the right grade
Extrusion rate (g/min)
600
500
400
300
200
100
0
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Test done in a 2C-silicone formulation
Winnofil SPM
PCC Division
Socal U1S2
Wide range of extrusion
rate possible with
SOCAL® and WINNOFIL®
SOCAL® and WINNOFIL® control
sealant performances (2)
• Influence
on yield value / viscosity
900
Bingham Yield Value (Pa)
800
Brookfield viscosity (Pa.s)
700
600
500
400
300
200
100
0
Test done in a silane-terminated polymer formulation
Socal 312
Wide range of yield value /
viscosity possible with
SOCAL® and WINNOFIL®
Socal U1S2
Together we can select the most appropriate product for your application
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PCC Division
Specific benefits of SOCAL® and
WINNOFIL® depending on sealant type
• Silicone sealants are very sensitive to dispersion :
dispersion test with WINNOFIL® SPM
dispersion test with another PCC
Excellent dispersion is achieved with WINNOFIL® SPM
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PCC Division
Specific benefits of SOCAL® and
WINNOFIL® depending on sealant type (2)
• Moisture-sensitive sealants :
0,40
0,30
100
80
water content (%)
storage stability (%)
60
0,20
40
0,10
20
0,00
Test done in a silane-terminated polymer formulation
Socal U1S2
Socal U1S1
storage stability (%)
water content (%)
0,50
0
standard PCC
SOCAL® U1S1 and U1S2 are preferred as they display :
• low moisture content linked to their higher mean particle size
• better storage stability
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PCC Division
Specific benefits of SOCAL® and
WINNOFIL® depending on sealant type (3)
• High strength sealants :
viscosity
strength at break
750
2,60
2,40
700
2,20
650
2,00
600
1,80
550
1,60
500
1,40
450
1,20
400
Test done in a silane-terminated polymer formulation
Socal 312
Winnofil SPM
Winnofil SPT
Strength at break (MPa)
Brookfield viscosity (Pa.s)
800
1,00
standard PCC
SOCAL® 312, WINNOFIL® SPM and WINNOFIL® SPT lead to
higher viscosities and higher mechanical properties
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PCC Division
SOCAL® and WINNOFIL®
in comparison to
competitive materials
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PCC Division
SOCAL® and WINNOFIL® vs. other materials
other PCCs
GCC (Ground Calcium Carbonate) + fumed silica :
GCC is a filler : does not bring improvements of rheological / mechanical
properties
To achieve the aimed rheological properties, GCC must be combined with
fumed silica
Fumed silica : is expensive, not easy to handle (dust) and toxic (risk for
silicosis)
GCC + rheological agents (thickeners, waxes…)
To achieve the aimed rheological properties, GCC must be combined with
rheological agents that are expensive
Decrease of mechanical properties compared to SOCAL® and WINNOFIL®
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PCC Division
SOCAL® and WINNOFIL® vs. other PCCs
• Example of comparisons in a MS-polymer formulation :
WINNOFIL® SPT
Competitor A
Moisture content (g/kg)
4,1
3,8
Yield Value (Pa)
658
545
Brookfield viscosity (Pa.s)
747
529
Strength at break (MPa)
2,2
1,7
Modulus 100% (MPa)
0,86
0,68
Extrusion Rate (g/min)
618
1150
Storage Stability (%)
85
39
WINNOFIL® SPT brings :
• Higher mechanical properties
• Controlled extrusion rate to avoid flowing of the sealant
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PCC Division
• Better storage stability
SOCAL® and WINNOFIL® vs. other PCCs (2)
• Example of comparisons in a MS-polymer formulation :
SOCAL®
U1S1
SOCAL®
U1S2
Competitor
B
Competitor
C
Moisture content
(g/kg)
2,6
2,5
4,6
4,8
Strength at break
(MPa)
1,9
1,9
2,1
2,0
M100% (MPa)
0,81
0,76
0,89
0,78
Extrusion Rate (g/min)
745
732
657
712
Storage Stability (%)
82
88
67
45
SOCAL® U1S1 / U1S2 bring :
• Lower moisture content
less moisture scavenger
• Good mechanical properties
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PCC Division
• Increased storage stability
Improvements with SOCAL® and
WINNOFIL® vs. GCC + fumed silica
• Example in 1C-silicone sealant :
Case 1 : 33% GCC +
6 % fumed silica
Case 2 : 39 % SOCAL® /
WINNOFIL®
> 10
2
Shore A Hardness
17
20
100 % Modulus (MPa)
0.4
0.4
Elongation at break (%)
320
640
Tensile Strength (MPa)
0.76
1.00
Tear Strength (N/mm)
4.1
13.1
Test Results
Slump - Boeing Test
(mm/5 min)
SOCAL® and WINNOFIL® enhance sealant performances
with costs savings (~ 10 %)
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PCC Division
SOCAL® and WINNOFIL®
benefits in Sealant
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PCC Division
Benefits of SOCAL® / WINNOFIL® in sealant
In Sealant, SOCAL® / WINNOFIL® grades are functional additives
which have a lot more to offer than fillers.
The ultrafine PCCs from SOLVAY provide:
easy dispersion into the formulation
good control of viscosity and extrusion rates (rheological properties)
stability of these rheological properties with time (storage stability)
no adverse effects to sealant cure and pot life
good adhesion to substrates
good mechanical properties in the final cured sealant
low moisture and good drying behaviour
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PCC Division
For more information, please visit our website at:
http://www.solvaychemicals.com/EN/products/pcc/default.aspx
For any type of inquiry, please feel free to contact us at the following
e-mail:
[email protected]
« To the extent that any statements made in this presentation contain information that is not historical, these
statements are essentially forward-looking. The achievement of forward-looking statements contained in this
presentation is subject to risks and uncertainties because of a number of factors, including general economic
factors, interest rate and foreign currency exchange rate fluctuations; changing market conditions, product
competition, the nature of product development, impact of acquisitions and divestitures, restructurings, products
withdrawals; regulatory approval processes and other unusual items. Consequently, actual results may differ
materially from those expressed or implied by such forward-looking statements. Forward-looking statements can be
identified by the use of words such as "expects," "plans," "will," "believes," "may," "could" "estimates," "intends",
"targets", "objectives", "potential", and other words of similar meaning. Should known or unknown risks or
uncertainties materialize, or should our assumptions prove inaccurate, actual results could vary materially from
those anticipated. The Company undertakes no obligation to publicly update any forward-looking statements”
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PCC Division
www.solvay.com

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