Polyamides are stiff - crystallizing polymers or so-called engineering plastics, which are widely used in various fields of industry, They are characterized by high strength, stiffness, heat reistance, sliding properties and resistance to corrosion (hydrocarbon solvents). All these properties allow to make of polyamides structural parts, electrical and antifriction products working in high stress and temperature conditions.
It was believed that the use of magnesium hydroxide to give PA flame retardant properties is impossible until recently. Because this compound accelerates degradation of the polymer as PET and PBT, due to their basic properties. Processing temperature of PA is always above 220 °C, which makes the use of an aluminum hydroxide absolutely impossible (it decomposes at 185-190 °C).
Due to the surface treatment of magnesium hydroxide by special chemicals it becomes possible to isolate (-OH) groups and make Ecopiren® flame retardant harmless to the PA with improved strength properties.
For more information please contact our technical product team via web-form or by phone.
Basic properties of fire resistant polyamide compositions:
Component
Recipe 1 (%)
Recipe 2 (%)
Recipe 3 (%)
Polyamide 6
39
49
54
Fiberglass
20
20
20
Additives
6
6
6
Zink Borate
4
4
4
Antimony Trioxide
4
6
4
Brominated FR
12
15
12
Ecopiren® 3,5N
15
0
0
Properties
Property
Recipe 1
Recipe 2
Recipe 3
Density, kg/m3
1570
1560
1520
Yield Stress, MPa
140
141
145
Elongation at break, %
5,0
5,2
5,5
Flexural module, MPa
7750
7720
7600
Impact strength, kJ/m2
40
40,5
42
Melting temperature, °C
216
215
213
Deflection temperature 1,8 Mpa,°C
197
196
194
MFI(250 °C; 2,16 kg), g/10 min
18
19
22
Flammability category
V-0
V-0
V-2
Smoke emission, %
ASTM D 2843
70-75
85
80
Solutions for this field
The most demanded products of RMCC and Europiren in this field are:
Subscribe and join team of professionals in industry!
We offer a free subscription to the news digest of LLC Russian Mining Chemical Company.
Quarterly we will tell you about our brands, product innovations, interesting researches and send invitations to various events. We will be glad to see you among our subscribers!
To become a subscriber of the news digest, please, fill in the form below.