Issue 06/2018

By:
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0
1000
500
0
100% PLA 10% Omya Smartfill
20% Omya Smartfill 40% Omya Smartfill
20% Omyacarb 1T
Matthias Welker, Michael Knerr, Karsten 100% Schulz PLA 10% Omya Smartfill
Omya International AG
20% Omya Smartfill 40% Omya Smartfill
Oftringen, Switzerland
20% Omyacarb 1T
Physical properties help to increase productivity. When 30
using Omya Smartfill in thermoforming or injection
20
molding, less energy is needed for heating and cooling and
10
lower cycle times can be achieved. Elongation at Break in MD [%]
80
70
60
50
40
80
70
60
50
40
30
20
10
0
100
90
80
70
60
100 50
40 90
30 80
20 70
10 60
50 0
Tensile Strength at Yield in MD [N/mm 2 ]
Tensile Strength at Yield in MD [N/mm 2 ]
10
0
100% PLA 10% Omya Smartfill
20% Omya Smartfill 40% Omya Smartfill
20% Omyacarb 1T
0
100
100% PLA 10% Omya Smartfill
Omya Smartfill is always the right choice when conventional
Tensile Modulus MD [N/mm 2 ]
90
20% Omya Smartfill 40% Omya Smartfill
Calcium Carbonate causes 80polymer degradation due to
5000 20% Omyacarb 1T
hydrolysis. It is EU 10/201170
and FDA approved for food
4500
contact, it meets composting 60requirements and has passed
4000
50
3500
the ecotoxicity test. The material Elongation is supplied at Break as a powder in MD [%]
40
3000 Tensile Modulus MD [N/mm 2 ]
and needs to be
100
pre-dispersed in a compound before being
30
2500 5000
used on conventional 90 single 20 screw extrusion lines.
2000 4500
80
10
1500 4000
Omya recently
70
received an
0
Innovator Award from the
1000 3500
Sustainable Packaging 60 Coalition (SPC) 100% as PLA a member 10% Omya 3000 500 Smartfill
of PepsiCo’s Supply 50 Chain Partnership to 20% deliver Omya Smartfill a new 40% Omya 2500 Smartfill 0
40
20% Omyacarb 1T
2000
100% PLA 10% Omya Smartfill
biobased film package to market. The outcome of a
30
1500
20% Omya Smartfill 40% Omya Smartfill
Partnership Innovator Award was one of a select few entries
70 20% Omyacarb 1T
20
1000
chosen for advancing 10 the state of sustainable packaging.
500
60
Fig 2
NatureWorks, Danimer 0 Scientific, Berry Global, Johnson-
0
50
Bryce and PepsiCo also received 100% an PLA award. 10% Omya Smartfill
100% PLA 10% Omya 80 Smartfill
www.omya.com
20% Omya Smartfill 40% Omya Smartfill
40 20% Omya Smartfill 40% Omya Smartfill
20% Omyacarb 1T
70
20% Omyacarb 1T
30 MFR @ 210C/2.16kg [g/10min]
60
70
20
50
Table 1: Moisture adsorption of common calcium carbonate
grades and Omya Smartfill 55 - OM (mg/g, upon relative humidity
change from 10% rH to 85 % rH at 23 °C)
Calcium Carbonate
Conventional un-treated
Conventional treated
Omya Smartfill 55-OM
Moisture Adsorption
1580 ppm
750 ppm
390 ppm
Table 2: MFR (210°C/ 2.16kg [g/10min]) (without degassing)
MFR
100% PLA Ingeo 2003D 6
60% PLA + 40% Omyacarb 1T 49
60% PLA + 40% Omya Smartfill 5
Table 3: MFR (210°C/ 2.16kg [g/10min]) (with degassing)
MFR
100% PLA Ingeo 2003D 6
60% PLA + 40% Omyacarb 1T 25
60% PLA + 40% Omya Smartfill 6
60
50
40
30
20
10
0
40
30
20
10
0
Fig 1
MFR @ 210C/2.16kg [g/10min]
40 80
30 70
Tensile Strength at Y
100% PLA 20 60 10% Omya Smartfill
20% Omya Smartfill 40% Omya Smartfill
10
20% Omyacarb 1T 50
40 0
30
100% PLA
20% Omya Smartfill
20
20% Omyacarb 1T
10
100% PLA 10% Omya Smartfill
20% Omya Smartfill 40% Omya 0Smartfill
20% Omyacarb 1T
Elongation at Break in MD [%]
Fig 3: MFR after sheet production
Elongation at Break in MD [%]
100% PLA 10% Omya Smartfill
20% Omya Smartfill 40% Omya Smartfill
20% Omyacarb 1T
100% PLA 10% Omya Smartfill
20% Omya Smartfill 40% Omya Smartfill
20% Omyacarb 1T
Fig 4: Impact of calcium carbonate
to elasticity
Materials
Tensile Strength at Y
70
60
50
100% PLA
20% Omya Smartfill
20% Omyacarb 1T
MFR @
MFR
40
70
30
60
20
50
10
40
0
bioplastics MAGAZINE 30 [06/18] Vol. 13 27
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