ELASTIC LAYERS - ISSS...CONIPUR 322 1 a aged granule roughened with quarz sand Mechanical Properties...
Transcript of ELASTIC LAYERS - ISSS...CONIPUR 322 1 a aged granule roughened with quarz sand Mechanical Properties...
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ELASTIC LAYERS
Jürgen Widler CONICA AG
San Francisco 9.10. – 10.10.2014
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Components for
Shock Pads & Elastic Layers
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Polyurethane binder
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OCN NCO n
Polyisocyanat
+ OH HO n
Polyol
+ Temp./ Accelerator
OCN NCO n
Prepolymer/ Binder
Production of Polyurethane binder
Prepolymerisation
Polyaddition
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+ H 2 O 2 n OCN NCO n
Prepolymer/ Binder H
N
O
C HO C
O
N
H
n OH
H 2 N NH 2 n
-2 n CO 2
H
N
O
C N
H n
Urea derivative
NCO OCN
Water (humidity)
+
Reaction of Binder
Curing Process
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Recycled Granule
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Recycled Granule
Granule Sources
Recycled Tires from cars/trucks Technical rubber
+ low price + low bulk density - Poor control of source - Impurities - Ingredients (additives, oil, etc.)
+ EPDM-based material + higher mechanical properties = higher prices = lower availitbility
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Recycled Granule
Specification of granule
Sieve curve Dust content Bulk density Color
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Mechanical Properties
Influencing components
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Mechanical Properties
Influencing components
Contact points – linking bondage Contact points – linking bondage
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Mechanical Properties
Influencing components
1-4 mm Granule
sieve curve in mm
tolerated range in %
1 0-5
1.5 3-20
2 15-44
2.25 26-60
2.5 41-78
2.75 60-89
3 75-94
3.5 90-100
4 97-100
4.5 100
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Mechanical Properties
Influencing components
binder
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Measurements
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Mechanical Properties
Relation between binder content and mechanical properties (EN 12230)
Tens
ile s
tren
gth
(N/m
m2)
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
20 % binder 15 % binder 10 % binder 8 % binder
CONIPUR 322
20 % binder
15 % binder
10 % binder
8 % binder
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Mechanical Properties I. Impact : aging of granules
Plastic sack 1 a
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Mechanical Properties
I. Impact aging of granules
Tens
ile s
tren
gth
(N/m
m2)
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
1 a aged granule new granule
0.34
0.44
CONIPUR 322
1 a aged granule
new granule
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Mechanical Properties
II. Pre-Conditioning of aged granule with Solvent (VOC)
Solvent after washing the aged granule
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Mechanical Properties
II. Pre-Conditioning of aged granule with solvent (VOC)
Tens
ile s
tren
gth
(N/m
m2)
0
0.1
0.2
0.3
0.4
0.5
0.6
1 a aged granule 1 a aged granule pre washed withVOC
0.34
0.58
CONIPUR 322
1 a aged granule
1 a aged granule pre washed with VOC
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Mechanical Properties
III. Pre-Conditioning of aged granule sanded with Quarz
Mixing SBR with Quarz sand
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Mechanical Properties
Tens
ile s
tren
gth
(N/m
m2)
III. Pre-Conditioning of aged granule sanded with Quarz
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
1 a aged granule 1 a aged granule roughened withquarz sand
0.34
0.44
CONIPUR 322
1 a aged granule
1 a aged granule roughened with quarz sand
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Mechanical Properties
Tens
ile s
tren
gth
(N/m
m2)
IV. Pre-Conditioning of aged granule with activator
0.325
0.33
0.335
0.34
0.345
0.35
0.355
0.36
0.365
0.37
1 a aged granule 1 a aged granule with activator
0.34
0.37
CONIPUR 322
1 a aged granule
1 a aged granule with activator
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Summery
INSTALLER - use of: • consistant and tested granule quality
• consistant binder quality
• defined mixing ratio binder / granule
Topics to ensure the quality of Tracks & Pitches for the END-USER based on given Standards/ rules • Pretesting compatibility of binder/ granule used
• On site testing regarding binder share
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Thank you for your attention