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Sappi Symbio PP40

Positive Plastics KIT1

What is it?

This is a composite of 60% virgin polypropylene and 40% cellulose, an organic structural component of green plants. The cellulose is wood-based and originates from responsibly managed forests. The material offers a good balance of density, stiffness, and impact resistance; it can be used in demanding applications but also in products with high aesthetic requirements.

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Material properties

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  • Tensile strength (MPa): 64

  • Tensile modulus (MPa): 4620

  • Density (kg/dm3): 1,06

  • MFI, 190°C/5kg(g/10min): 0,6

Positive Plastics_Symbio PP40

Technical benefits

Compared with unfilled PP, the cellulose content significantly increases the strength and modulus of the material with a very limited increase in density. Other benefits include good impact resistance and good heat and scratch resistance. The processability of the material is not compromised because of the high cellulose content. 

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Look and feel

The material has a natural look and warm touch that comes with a visually pleasing matte surface. The filler material is not obvious on the surface of the product. Low density makes the rigid component lightweight and easy to handle. Good scratch resistance maintains the quality appearance of the product even in harsh conditions.

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Environmental benefits

The high volume of organic content reduces the consumption of fossil-based feedstock and decreases the carbon footprint of the end product. The material can be fully recycled in a closed-loop recycling process.

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Applications

This material can be used for automotive interior, consumer electronics, furniture, appliances, and other consumer goods.

Consumer Goods
Furniture
Automotive

Why we chose this material 

Cellulose is an interesting option compounded with thermoplastics, in many cases with polypropylene. A material with corresponding properties does not really exist among conventional thermoplastic alternatives. How does it turn out in practice? It is really stiff. And what about colour options? Well, see for yourself!

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Why you should consider this material

  • You are looking for a visually appealing material.

  • You need a material with improved modulus and strength, and a lower weight than other fillers such as glass or talc.

  • You would like to reduce the environmental footprint of your product.

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About the manufacturer

Sappi is a diversified woodfibre company focused on providing dissolving pulp, packaging and speciality papers, as well as biomaterials and biochemicals to customers across more than 150 countries. They are using renewable wood fibers, as well as material used in the paper production, to produce diversified products. Amongst them, are  bio-composite polymers.

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