Long Fiber Thermoplastics
Fiber skeleton delivers new standard of performance in metal replacement
Solvay’s Long Fiber Thermoplastics (LFT) are innovative long-fiber reinforced structural products that target challenging metal replacement applications and semi-structural applications. They are designed specifically to achieve maximum synergy between: high performance, design freedom, functions integration, weight reduction and per-part cost economy through fast cycle times.
Solvay LFT materials are created using a pultrusion process, where continuous reinforcement fiber strands are impregnated with plastic resin and trimmed to the targeted granulate length of typically, 7 to 9 mm. These materials are reinforced with glass fibers, the length of which corresponds to the granulate length.
The function of LFT’s is to create, during the injection molding process, a unique 3D entangled long glass fiber network inside the molded part (shown below). This glass fiber network really forms a strong fiber skeleton, which ensures an optimal dimensional stability and significantly improves the thermal-mechanical properties compared to traditional highly filled short-fibers plastics.
LFT products can be processed on commercial standard injection-molding equipment. Simply, low shear conditions must be preferred in order to minimize unnecessary fiber filament breakage.
Solvay’s LFT compounds are available in dried form, shipped in ready-to-use octabins and in 25kg plastic bags.
|Key advantages||Key markets|
Long Fiber Omnix® LF HPPA property improvement
Improvement expressed in % vs. standard short-fiber reinforced Omnix® (Tg = 80°C) at same GF loading
Long Fiber Amodel® PPA property improvement
Improvement expressed in % vs. standard short-fiber reinforced PPA at same GF loading
Tensile creep at 150 °C and 60 MPa load – strain chart
Graph compares strain evolution of specimen maintained under load for standard short fiber reinforced
Omnix® HPPA and Omnix® LF HPPA long fiber grade at same glass fiber loading.
Falling weight impact test
PTI-CEAST - 23°C - 25,2kg from 1m at 4,4 m/s
Pictures demonstrate, in case of long fiber product, the active participation of fiber skeleton in impact energy absorption and the resulting benefits of performances.
Solvay's LFT compounds differ by the type of used polymer resin (PA66, HPPA, PPA, PPS, etc.) as well as the quantity of fiber reinforcement.
|Technical Data Sheets|
|Omnix® HPPA LFT Grades|
|Omnix® LF-4050||50% long glass fiber, easy flowing high-performance PA, hot-water moldable, black color|
|Omnix® LF-4060||60% long glass fiber, easy flowing high-performance PA, hot-water moldable, black color|
|Amodel® PPA LFT Grades|
|Amodel® LF-1930 HS||30% long glass fiber, easy flowing PPA, heat stabilized, natural or black color|
|Amodel® LF-1950 HS||50% long glass fiber, easy flowing PPA, heat stabilized, natural or black color|
|Ixef® PARA LFT Grades|
|Ixef® LF-1050||50% long glass fiber, general purpose, high gloss, black color|
|Strator® PA66 LFT Grades|
|Strator® A-3 HI N7||30% long glass fiber, high flow, PA66, high impact|
|Strator® C-4||40% long glass fiber, high flow, PA66, general purpose|
Innovative Technology – Spectacular Results
Plastics are increasingly used to replace metal for moving parts like gears, bearings, sliders and guides because they are cost efficient, reduce noise and often do not need external lubrication. Solvay offers an attractive range of innovative tribological long fiber reinforced compounds with specific additives packages, ideally suited for these applications.
Under the trade name Tribocomp®, the PA66 portfolio offers many advantages over metals:
- Significantly lower manufacturing cost
- Lighter weight
- Reduction of power loss through the transmission
- Greatly reduced noise level
Planetary gears - Tribocomp® PA66 LGF30
The Tribocomp® PA66 portfolio is completed with Amodel® PPA FW grade for higher temperature applications.
|Technical Data Sheets|
|Tribocomp® PA66 LGF30 PTFE12 N6||30% long glass fiber reinforced, high-flow PA66|
|Tribocomp® PA66 LGF30 PTFE15 MoS N9||30% long glass fiber reinforced high-flow PA66 with a PTFE/MoS2 package|
|Tribocomp® PA66 LGF30 PTFE18 N6||30% long glass fiber reinforced, high-flow PA66|
|Tribocomp® PA66 LGF30 TS0 S8||30% long glass fiber reinforced, black, high-flow PA66|
|Tribocomp® PA66 LGF35 MoS2 S9||35% long glass fiber reinforced high-flow PA66|
|Amodel® LF-1930 FW HS||30% long glass fiber, easy flowing PPA, heat stabilized, improved friction properties|
Please contact your Technical Development representative for more information on the Tribocomp® grades.