Luzenac talcs are used in polypropylene for automotive parts, household and white goods. They impart a variety of benefits to polypropylene depending on the specific application, for instance higher stiffness and improved dimensional stability. Luzenac talcs are also used for antiblocking in polyethylene, as a nucleating agent in semi-crystalline polymers and as a reinforcing filler in food packaging. Luzenac offers an unrivalled and innovative talc product line, comprising calcined, surface treated, ultra-fine grind and high aspect ratio grades. All Luzenac's fine milled products are available in compacted form for enhanced compounding throughput and dosing accuracy. For more information, or to discuss the appropriate talc product for your requirement, please contact our plastics team. |
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Polypropylene applications
Automotive: under-the-hood/bonnet parts
- Luzenac's high aspect ratio talcs enable under-the-hood parts, e.g. heating, ventilation and air conditioning units, to perform over a wide temperature range.
- For the long-term thermal stability of under-the-hood/bonnet parts, Luzenac's high purity grades are ideal.
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Automotive: dashboard and interior trim
- For dashboards, pillar trim and consoles, Luzenac talcs impart good dimensional stability, a mat surface and increased stiffness, enabling down-gauging.
- Luzenac's fine-grind grades allow higher levels of impact resistance to be achieved in line with the automotive industry's increasingly stringent safety requirements, (e.g. new airbag systems).
- Luzenac has developed specific grades providing excellent scratch resistance.
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Automotive: bumper and exterior trim
- Certain Luzenac talc grades generate a superior impact-to-stiffness balance in bumpers and a low coefficient of thermal expansion for zero gap designs.
- For weather-resistant exterior trim, Luzenac recommends high purity, platy, ultra fine grades.
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Household appliances
- Luzenac talc reinforced polypropylene is an effective alternative for metal in jug kettles and for engineered thermo-plastics in toasters and irons.
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White goods
- Luzenac talcs impart high temperature rigidity to white goods.
- Because Luzenac talcs are chemically inert, the compounds remain stable in the presence of active detergents for washing machine, dishwasher and tumble-drier applications.
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Food packaging
- Luzenac's Mistropack® improves stiffness, enabling down-gauging and weight reduction, thereby improving production output.
- Mistropack® also improves dimensional stability, heat resistance and printability.
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Garden furniture
- Luzenac talcs impart good rigidity to garden furniture.
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Other polymer applications
Agricultural film
- By blocking the sun's infrared radiation, Luzenac talcs increase greenhouse temperatures and improve light diffusion.
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Industrial foils/films
Talc filled reinforced polypropylene films and foils are beginning to replace PVC for corrugated board, office stationary, labels and so on. Here, Luzenac talcs improve rigidity and production output, reduce gas permeability, thereby reducing formulation costs. |
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LLDPE Antiblocking
- Luzenac offers precision ground talcs to obtain a good antiblocking effect, low haze, high brightness and transparency.
- They also minimize processing additive adsorption.
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Nucleation
- The nucleating efficiency of ultra fine Luzenac talc increases crystallisation temperatures, resulting in faster demoulding and enhanced stiffness.
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Polyamides
- Luzenac talcs are reinforcing fillers in polyamides. They increase stiffness and heat distortion temperatures, resulting in better dimensional stability and less warpage.
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Wood-plastic composites
Luzenac talcs:
- increase modulus of rupture, modulus of elasticity and HDT
- reduce water absorption and warpage
- improve dimensional stability
- increase processing efficiency
- reduce creep
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