boast wb psa performance circulation
TRANSCRIPT
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• Compound WB Acrylic PSA . for specialty Tape applications in HVAc , Construction and automobile sector.
• A study of different Resin Dispersion in WB PSA• study maximum level of Resin dispersion loading• study most suitable dispersions for the balance of
adhesive strength ( peel, shear and tack )• Study improvement in shear str. and bonding str. with low
surface energy substrates
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Background
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Advantages
1. Enhanced properties , comparable with Solvent Borne PSA’s
2. Ease of blending or compounding , no need of expensive equipment like Rubber Mill , sigma mixer etc.,
3. Cost saving of 20-30 % as compared to SB PSA”s
4. Eco friendly , no health hazards5. No fire hazards
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Applications
1. Foam conversion2. Foil conversion3. Conversion of sheet feed substrates ,
like elastomeric foams , leather , insulation panels etc,
4. masking
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Coating parameters
Adhesive Dry wt . 35- 40 gm / sq.mtrCoating method Myer Gravure
For porous substrates ( Fabrics ) , Foil and foams
CommaFor film/ paper based self wound tapes
Coating substrate Silicone coated liner / Direct on substrateCuring Temperature 120 deg CLine Speed 25 meters / m to 60 meters/m
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• keeping constant levels of WB PSA , rheology modifier external X link agent
• compound resin dispersions at different levels.• Study the adhesive strength with help of graphs.
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Details
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Ingredient Parts per Hundred
WB PSA ( 60 % solids ) 100
Rheology Modifier 1
Resin dispersion 20 to 60
Aliphatic poly isocyanine X link agent
1
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Base formulation
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Property Value Unit
Solids content 60 %
pH Value 8 - 9Viscosity < 1000 mPa s
Glass Transition temperature -42 Deg C
Density 1.03 G / c. cm
Min. film forming temp < 0 Deg C
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Property Value Unit
color Light yellowBoiling point 89 Deg CFlash point 230 Deg CDensity 1.05 G / c. cm
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Property Value Unit
color pale yellowsolubility Water dispersibleFlash point 163 Deg C
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Resin Softening Point 97 – 103 C
Resin Content 48 – 51 %
Total Solids 48 – 51 %
Viscosity Brookfield spindle 2 @ 30 rpm
1000 cps max. ( 400 – 900 typical )
pH 8 – 10
Appearance White to cream color milky liquid
Odor Pleasant , faint ammonia cal / xylene
Xylene content Max. 4%
Particle size 1 – 3 microns
Dried film on glass Clear , tacky, brittle
Compatibility Polymer types : Nat Rubber , Syn Rubber SBR , Acrylics, Thermoplastic Rubber and EVA
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Resin Softening Point 65 – 75 C
Resin Content 48 – 51 %
Total Solids 48 – 51 %
Viscosity Brookfield spindle 2 @ 30 rpm
1000 cps max. ( 400 – 900 typical )
pH 7
Appearance White to cream color milky liquid
Dried film on glass Clear , tacky, brittle
Compatibility Polymer types : Nat Rubber , Syn Rubber SBR , Acrylics, Thermoplastic Rubber and EVA
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Resin Softening Point 65 – 75 C
Resin Content 54 – 56 %
Total Solids 54 – 56 %
Viscosity Brookfield spindle 2 @ 30 rpm 1000 cps max. ( 400 – 900 typical )
pH 7
Appearance White to cream color milky liquid
Dried film on glass Clear , tacky, brittle
Compatibility Polymer types : Nat Rubber , Syn Rubber SBR , Acrylics, Thermoplastic Rubber and EVA
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FormulationIngredients
AFT 01 AFT 02 AFT 03 AFT 04 AFT 05
WB PSA 100 100 100 100 100
Rheology modifier 1 1 1 1 1
Resin Dispersion A 20 30 40 50 60
X Link Agent 1 1 1 1 1
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Formulation : 01
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FormulationIngredients
BT 01 BT 02 BT 03 BT 04 BT 05
WB PSA 100 100 100 100 100
Rheology modifier 1 1 1 1 1
Resin Dispersion B 10 20 30 40 50
X Link Agent 1 1 1 1 1
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Formulation : 02
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FormulationIngredients
CT 01 CT 02 CT 03 CT 04 CT 05
WB PSA 100 100 100 100 100
Rheology modifier 1 1 1 1 1
Resin Dispersion C 10 20 30 40 50
X Link Agent 1 1 1 1 1
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Formulation : 03
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FormulationIngredients
BCT 01 BCT 02 BCT 03 BCT 04 BCT 05
WB PSA 100 100 100 100 100
Rheology modifier 1 1 1 1 1
Resin Dispersion B 10 20 30 40 50
Resin Dispersion C 50 40 30 20 10
X Link Agent 1 1 1 1 1
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Formulation : 04
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Testing
Peel Adhesion was done on , Galvanized Steel plates and Aluminum Plates .
shear strength was also done on Galvanized Steel plates and Aluminum Plates
The shear strength was done at room temp (40 deg c ) and at 56 % Relative Humidity , a typical gulf region climate.
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Peel Str
0
500
1000
1500
2000
2500
AFT 01 AFT 02 AFT 03 AFT 04 AFT 05
Peel Str
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Shear
05
101520
25303540
AFT 01 AFT 02 AFT 03 AFT 04 AFT 05
Shear
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Peel Str
0
500
1000
1500
2000
2500
B T 01 B T 02 B T 03 B T 04 B T 05
Peel Str
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Shear
0
5
10
15
20
25
30
B T 01 B T 02 B T 03 B T 04 B T 05
Shear
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Peel Str
0
500
1000
1500
2000
2500
CT 01 CT 02 CT 03 CT 04 CT 05
Peel Str
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Shear
0
5
10
15
20
25
CT 01 CT 02 CT 03 CT 04 CT 05
Shear
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Peel Str
1340
1360
1380
1400
1420
1440
1460
1480
BCT 01 BCT 02 BCT 03 BCT 04 BCT 05
Peel Str
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Shear
0
5
10
15
20
25
BCT 01 BCT 02 BCT 03 BCT 04 BCT 05
Shear
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Product applicationsfoils
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Product applicationsfoils
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Product applicationsfoils
Aluminum Foil Tape
Alu Glass Tape
FSK Tape
Foam Tape
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Product applicationsfoils
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Product applicationsfoils
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Product applicationsfoams
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Product applicationsInsulation material
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Product applicationsDry wall and jointing
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Product applicationsmasking
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Product applicationsTransfer adhesive
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Product applicationsPost it
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Product applicationsReinforced paper tapes
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Product applicationsPipeline identification and coding
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Product applicationsTamper evident
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Product applicationsabrasives
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Product applicationsfoams
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conclusionFormulating WB PSA Acrylic with Resin Dispersions helps to
Increase in Peel strength up to 1500 gm per sq. mtr.
And
Increase in shear strength by at least 30-35% with incorporation of aliphatic isocyanate X linker
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Please feel free to contact us For more Information
Our website : www.psadhesive.comPersonal Email : [email protected] : 00 91 9850242282
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