Radipol XT is a high temperature polymer suitable for applications such as monofilaments for industrial brushes and filters. It offers higher resistance to thermal oxidation up to 230°C compared to competitors and absorbs less water and moisture than PA 66. Radipol XT maintains over 80% of its tensile strength and modulus even after 3000 hours at 220°C. It also absorbs around 25% less moisture than PA 66 when exposed to humid conditions. Radipol XT is well-suited for monofilament applications due to its high heat resistance, low moisture absorption, and ability to be spun into filaments with draw ratios over 3.5.
2. Market High Temperature Polymers: drivers
MONOFILAMENTS:
hair brushes, brushes for cleaning ovens and monofilaments for industrial filtration
3. Radipol XT Key benefits
3
•Higher resistance to thermal oxidation. Same or even better performances vs. competitors till 230°C for 3000 h
•Lower water absorption vs. PA 66
•Lower moisture absorption vs PA 66
To note, RADIPOL XT covers all ranges of applications (injection molding / extrusion / blow molding)
4. Radipol XT Key benefits
4
•Higher resistance to thermal oxidation. Same or even better performances vs. competitors till 230°C for 3000 h
•Lower water absorption vs. PA 66
•Lower moisture absorption vs PA 66
5. 5
,00
20,00
40,00
60,00
80,00
100,00
120,00
0
1000
2000
3000
Retention (%)
Time (h)
Tensile Strength
P A66
PA XT
,00
20,00
40,00
60,00
80,00
100,00
120,00
0
1000
2000
3000
Retention (%)
Time (h)
Tensile Modulus
PA 66
PA XT
RADIPOL XT vs. RADIPOL A Thermal ageing in air at 220°C
Tests carried out on specimens 3.2 mm thick
8. Radipol XT Key benefits
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•Higher temperature resistance Vc. PA 46 and PA 66: it works weel till 220°C
•Lower moisture uptake vs. PA 66
•Lower water uptake vs PA 66
9. WATER ABSORPTION PA66/6T AND PA66
plates 60*60*2mm immersion in water at 23°C
0,0
1,0
2,0
3,0
4,0
5,0
6,0
7,0
8,0
9,0
10,0
0 1000 2000 3000 4000 5000
Time (hours)
Moisture (%)
HT-PA (unfilled polymer)
PA 6.6 (unfilled polymer)
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RADIPOL XT
Lower water uptake
Water uptaking RADIPOL XT vs PA 66
PA XT
10. Radipol XT Key benefits
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•Higher resistance to thermal oxidation. Same or even better performances vs. competitors till 230°C for 3000 h
•Lower water absorption vs. PA 66
•Lower moisture absorption vs PA 66
•Better dimensional stability vs PA 66 ??
12. Mechanical & physical properties
Product Variety
Summary of performances
Radipol XT Product info
12
13. 13
Properties
Method
Test conditions
Units
Radipol® XT
Density
ISO1183
Kg/dm3
1,15
Tensile modulus
ISO 527-2/1A
DAM; vel. test 1mm/min
MPa
2900
Yield stress
ISO 527-2/1A
DAM; vel. test 5mm/min
MPa
93
Yield strain
ISO 527-2/1A
DAM; vel. test 5mm/min
%
6.0
Flexural modulus
ISO 178/1A
DAM; vel. test 2mm/min
MPa
2700
Flexural strength
ISO 178/1A
DAM; vel. test 2mm/min
MPa
124
Charpy impact strength
ISO 179 eU
DAM; T=23°C
KJ/m2
NB
Charpy notched impact strength
ISO 179 eA
DAM; T=23°C
KJ/m2
6.5
Melting temperature
ISO 11357-1-3
Heating rate 10°C/min
°C
280
RADIPOL XT Mechanical & physical properties
16. 16
XT vs. competitors Summary of main properties comparison
Proprerty
PA 66
XT
PPS
PA 4.6
PPA
Melting Point
0
++
++
+++
++++
Processability
+++
++++
0
+
0
Resistance to heat in air
0
++
+++
0
+++
Hydrolysis
+
+
++++
0
+++
HDT
0
0
+
+++
++
Density
++
++
0
+
+
17. 17
RADIPOL XT vs Competitor (on monofilaments) (Thermal ageing in air at 200°C) The tests were carried out internally with a dynamometer for yarn
40
60
80
100
0
50
100
150
Retention (%)
Time (h)
Tensile stress at break
Competitor (DR=3,5)
XT 2 (DR= 4,0)
20
40
60
80
100
-10
10
30
50
70
90
110
130
150
Retention (%)
Time (h)
Elongation at break
Competitor (DR=3,5)
XT 2 (DR= 4,0)
18. Monofilaments market
•RADIPOL XT performances vs. main CTQ’s
–Spinnability at high draw ratios (> 3.5) - GOOD
–Waste reduced - GOOD
–Consistency in spinning (limited evolution of the viscosity) – GOOD (XT 45 reccomended)
–High heat resistance - GOOD
–High melting point vs. PA 66 - GOOD
–Good elastic recovery – FAIR (like 66)
–Limited loss of properties due to water uptaking - GOOD
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