Long Fiber Thermoplastic Compounds

Fiber skeleton delivers new standard of performance in metal replacement

SpP_Product_Long-Fiber

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.

Molded-part-fiber-skeleton


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 advantagesKey markets
  • Combination of high stiffness and outstanding impact strength
  • Unrivaled retention of mechanical performance at high temperature
  • Extremely low tendency to creep under high permanent loading
  • Outstanding fatigue resistance
  • Reduced isotropic shrinkage
  • High dimensional stability and very low warpage
  • High shear strength and high burst pressure
  • Excellent surface finish
  • Ease of processing and fast cycle times
  • Automotive
  • Advanced Transportation
  • Consumer Goods
  • Sport & Leisure
  • Industrial Applications
  • Water Management


Long Fiber Omnix® LF HPPA property improvement

Omnix-HPPA-vs-LFT-spider-graph  

Improvement expressed in % vs. standard short-fiber reinforced Omnix® (Tg = 80°C) at same GF loading


Long Fiber Amodel® PPA property improvement

LFT-Amodel-PPA-LF-properties  

Improvement expressed in % vs. standard short-fiber reinforced PPA at same GF loading


Tensile creep at 150 °C and 60 MPa load – strain chart

LFT-tensile-creep

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 

LFT-Falling-weight-impact-test-720w
Pictures demonstrate, in case of long fiber product, the active participation of fiber skeleton in impact energy absorption and the resulting benefits of performances. 

Grades

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.

Standard Long Glass Fiber Reinforced Grades

Technical Data Sheets
Omnix® HPPA LFT Grades
Omnix® LF-405050% long glass fiber, easy flowing high-performance PA, hot-water moldable, black color
Omnix® LF-406060% long glass fiber, easy flowing high-performance PA, hot-water moldable, black color
Amodel® PPA LFT Grades
Amodel® LF-1930 HS30% long glass fiber, easy flowing PPA, heat stabilized, neutral or black color
Amodel® LF-1950 HS50% long glass fiber, easy flowing PPA, heat stabilized, neutral or black color
Ixef® PARA LFT Grades
Ixef® LF-105050% long glass fiber, general purpose, high gloss, black color
Strator® PA66 LFT Grades
Strator® A-3 HI N730% long glass fiber, high flow, PA66, high impact
Strator® C-440% long glass fiber, high flow, PA66, general purpose
Strator® C-660% long glass fiber, high flow, PA66, general purpose

LFT-auto-applications

Friction & Wear Grades

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

LFT Gearwheel 2

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 N630% long glass fiber reinforced, high-flow PA66
Tribocomp® PA66 LGF30 PTFE15 MoS N930% long glass fiber reinforced high-flow PA66 with a PTFE/MoS2 package
Tribocomp® PA66 LGF30 PTFE18 N630% long glass fiber reinforced, high-flow PA66
Tribocomp® PA66 LGF30 TS0 S830% long glass fiber reinforced, black, high-flow PA66
Tribocomp® PA66 LGF35 MoS2 S935% long glass fiber reinforced high-flow PA66
Amodel® LF-1930 FW HS30% long glass fiber, easy flowing PPA, heat stabilized, improved friction properties

Please contact your Technical Development representative for more information on the Tribocomp® grades.