可UV光固化的溶剂型丙烯酸酯压敏胶
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4
Silicones
PSA TODAY
Polyesters
EVA
Polyurethanes
Rubbers
Acrylics
Polyethers
5
MAIN PROPERTIES OF PRESSURESENSITIVE ADHESIVES
Tack (Initial adhesion) Peel adhesion (adhesion) Shear strength (cohesion) Shrinkage Cohesion-Adhesion Balance
time
Polymer content mass [g] [wt %]
KM1 94.4
5.0
0.1
KM2 94.4
5.0
0.2
KM3 94.7
5.0
0.3
KM4 94.6
5.0
0.4
KM5 94.5
5.0
0.5
KM6 94.4
5.0
0.6
KM7 94.3
5.0
0.7
KM8 94.2
5.0
0.8
KM9 94.1
West Pomeranian University of Technology, Szczecin, Poland
1
AGENDA
Pressure-sensitive adhesives
Aim of presentation
PSA today
Monomers
Synthesis of solvent-based acrylic PSA
Name
n-butyl acrylate [wt
%]
Compositions
acrylic acid
4-Acryloyloxy Azobisisobutyron Solvent benzophenone [wt itrile [wt %]
Dosage time
[wt %]
%]
Post reaction
9
MEASUREMENT OF TACK AND ADHESION
Testing machine from Roell/Zwick Company
AFERA 4015
Measurement of peel adhesion on steel plate
AFERA 4001 10
SYNTHESIS OF SOLVENT-BASED ACRYLIC PSA
• the thickness of a coated PSA layer
• a UV-doses
• UV-crosslinking time • a kind of UV-
equipments
Coat weight of PSA layer:
• 30 g/m2 • 60 g/m2 • 90 g/m2
150
150
40
40
100
100
Peel adhesion/Tack (N/25mm) Peel adhesion/Tack (N/25 mm)
Measurements Results
Metedology of selfadhesive tapes
Summary
2
AIM OF PRESENTATION
Synthesis of photoreactive UV-crosslinkable solvent-based pressure-sensitive adhesives based on acrylics which could be characterized by broad range of performance suitable for manufacturing of various high performance self-adhesive materials in form of:
UV-crosslinkable solvent-based pressure-sensitive adhesives (PSA) based on acrylics
Karolina Mozelewska
Institiute of Organic Chemical Technology International Laboratory of Adhesives and Self-adhesive Materials
6
IMPORTANT ACRYLATE MONOMERS FOR SYNTHESIS OF SOLVENT-BASED ACRYLIS PSA
7
METEDOLOGY OF SELF-ADHESIVE TAPES
• composition • concentration of
the photoinitiator
• 120 g/m2
UV-crosslinking doses:
• 5 mJ/cm² • 10 mJ/cm² • 15 mJ/cm² • 20 mJ/cm² • 30 mJ/cm² • 50 mJ/cm²
8
MEASUREMENT OF SHEAR STRENGHT 20°C AND 70°C
FINAT FTM 8
5.0
0.9
KM10 94.0
5.0
1
3h
160
3h
167
3h
160
3h
160
0.1
ethyl acetate
1h
3h 3h
174 55.0
160
3h
143
3h
174
3h
141
3h
173
11
KM4
Biblioteka Baidu
Peel adhesion
Tack
Cohesion 20oC
Cohesion 70oC
30 g/m2
60 g/m2
one-sided, double-sided or carrier-free mounting tapes
sign and marking films
labels
protective films
a wide range of
3
medical products
THE TERM PSA
Pressure-sensitive adhesives (PSA) are nonmetallic (polymeric) materials used to bond other materials characterized by permanent tack, peel adhesion and shear strength. ➢ glass transition temperature Tg < -25 °C ➢ amorphous structure of the polymer
Silicones
PSA TODAY
Polyesters
EVA
Polyurethanes
Rubbers
Acrylics
Polyethers
5
MAIN PROPERTIES OF PRESSURESENSITIVE ADHESIVES
Tack (Initial adhesion) Peel adhesion (adhesion) Shear strength (cohesion) Shrinkage Cohesion-Adhesion Balance
time
Polymer content mass [g] [wt %]
KM1 94.4
5.0
0.1
KM2 94.4
5.0
0.2
KM3 94.7
5.0
0.3
KM4 94.6
5.0
0.4
KM5 94.5
5.0
0.5
KM6 94.4
5.0
0.6
KM7 94.3
5.0
0.7
KM8 94.2
5.0
0.8
KM9 94.1
West Pomeranian University of Technology, Szczecin, Poland
1
AGENDA
Pressure-sensitive adhesives
Aim of presentation
PSA today
Monomers
Synthesis of solvent-based acrylic PSA
Name
n-butyl acrylate [wt
%]
Compositions
acrylic acid
4-Acryloyloxy Azobisisobutyron Solvent benzophenone [wt itrile [wt %]
Dosage time
[wt %]
%]
Post reaction
9
MEASUREMENT OF TACK AND ADHESION
Testing machine from Roell/Zwick Company
AFERA 4015
Measurement of peel adhesion on steel plate
AFERA 4001 10
SYNTHESIS OF SOLVENT-BASED ACRYLIC PSA
• the thickness of a coated PSA layer
• a UV-doses
• UV-crosslinking time • a kind of UV-
equipments
Coat weight of PSA layer:
• 30 g/m2 • 60 g/m2 • 90 g/m2
150
150
40
40
100
100
Peel adhesion/Tack (N/25mm) Peel adhesion/Tack (N/25 mm)
Measurements Results
Metedology of selfadhesive tapes
Summary
2
AIM OF PRESENTATION
Synthesis of photoreactive UV-crosslinkable solvent-based pressure-sensitive adhesives based on acrylics which could be characterized by broad range of performance suitable for manufacturing of various high performance self-adhesive materials in form of:
UV-crosslinkable solvent-based pressure-sensitive adhesives (PSA) based on acrylics
Karolina Mozelewska
Institiute of Organic Chemical Technology International Laboratory of Adhesives and Self-adhesive Materials
6
IMPORTANT ACRYLATE MONOMERS FOR SYNTHESIS OF SOLVENT-BASED ACRYLIS PSA
7
METEDOLOGY OF SELF-ADHESIVE TAPES
• composition • concentration of
the photoinitiator
• 120 g/m2
UV-crosslinking doses:
• 5 mJ/cm² • 10 mJ/cm² • 15 mJ/cm² • 20 mJ/cm² • 30 mJ/cm² • 50 mJ/cm²
8
MEASUREMENT OF SHEAR STRENGHT 20°C AND 70°C
FINAT FTM 8
5.0
0.9
KM10 94.0
5.0
1
3h
160
3h
167
3h
160
3h
160
0.1
ethyl acetate
1h
3h 3h
174 55.0
160
3h
143
3h
174
3h
141
3h
173
11
KM4
Biblioteka Baidu
Peel adhesion
Tack
Cohesion 20oC
Cohesion 70oC
30 g/m2
60 g/m2
one-sided, double-sided or carrier-free mounting tapes
sign and marking films
labels
protective films
a wide range of
3
medical products
THE TERM PSA
Pressure-sensitive adhesives (PSA) are nonmetallic (polymeric) materials used to bond other materials characterized by permanent tack, peel adhesion and shear strength. ➢ glass transition temperature Tg < -25 °C ➢ amorphous structure of the polymer