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Styron LGF 9621 Homopolymer Polypropylene

Category Polymer , Thermoplastic , Polypropylene (PP)
Manufacturer Styron
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Styron LGF 9621 Homopolymer Polypropylene.pdf
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Material Notes:
Overview: LGF 9621 is polypropylene homopolymer reinforced with 60% by weight of long glass fibers. (PP-LGF60, Long Glass fiber Granulate). This PP-LGF60 is a ‘concentrate’ which has to be diluted with either ‘neat’-polypropylene and/or mineral filled PP based compounds. The ‘dilution’ is typically done as a dry blend of granulates by means of gravimetric dosing devices at the injection-molding machine. A weight ratio of 1:2 of LGF 9621.00 and i.e. LGF 8100 PP-copolymer will result in a composite-system have 20% by weight of glass fibers. LGF 9621 has been especially formulated to meet the long term heat ageing resistance (LTHA) required for use in some automotive ‘interior’ applications i.e. instrument panel carrier or integrated door-modules. LTHA > 100 h@140°C and/or LTHA > 400 h @150°C will be achieved after dilution to 20% GF-content with ‘neat’-PP (LGF 8000 or LGF 8100). The ‘long’ glass fibers (11mm length) provide high stiffness, strength and impact-resistance of the injection molded parts. The properties shown below have been measured on standardized ‘dong bone’ –shape specimens (ISO 3167). Note” The mechanical properties which will be present in ‘real’ injection-molded parts may be different – depending on the fiber-orientation and the fiber-length distribution profile – which themselves are resulting from hardware confiation and processing parameters (such as i.e. the type of screw and mixing elements, diameter and radii of nozzle and hot-runners, number and size of gates, injection speed during mold filling and backpressure during dosing cycle.)Information provided by Styron
Physical Properties Metric English Comments
Density 1.12 g/cc
0.0405 lb/in³
ISO 1183
Mechanical Properties Metric English Comments
Tensile Strength at Break 105 MPa
15200 psi
ISO 527-2/50
Elongation at Break 2.3 %
2.3 %
ISO 527-2/50
3.0 %
3.0 %
Flexural strain, outer 'fiber' strain; ISO 178
Tensile Modulus 6.50 GPa
943 ksi
ISO 527-2
Flexural Strength 155 MPa
22500 psi
3-Point Bending; ISO 178
Flexural Modulus 6.50 GPa
943 ksi
3-Point Bending; ISO 178
Charpy Impact Unnotched 4.50 J/cm²

@Temperature 23.0 °C
21.4 ft-lb/in²

@Temperature 73.4 °F
ISO 179/1fU
5.30 J/cm²

@Temperature 23.0 °C
25.2 ft-lb/in²

@Temperature 73.4 °F
ISO 179/1fU
Thermal Properties Metric English Comments
Deflection Temperature at 1.8 MPa (264 psi) 156 °C
313 °F
Unannealed; ISO 75-2/A
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