Material PP - polypropylene
PP is an inexpensive, ductile, low strength material with reasonable outdoor performance. The material surface is soft wax-like and scratches easily.

Stiffness and strenght are often improved using reinforcement of glass, chalk or talc. The colour is opaque and white, but it can be dyed in many colours.

In many ways, PP is similar to HDPE, but it is stiffer and melts at 165-170 C. PP can be manufactured by all the methods used for thermoplastics.
Danish Name PP - polypropylen
Category Plastics, Thermoplastics
Products Childrens toy bin
Transport box
Fuel tank
Honey pot
Suitcase
Garbage bin
Chair for IC3 train
Rope
Shaver, rechargeable
Monkey, toy figure
Air intake
Processes Plastic moulding
Plastic injection moulding
Extrusion
Film blowing
Blow moulding
Similar materials HDPE
References K.D. Feddersen & Co.
Price Low cost plastic (see also Plastics general overview)
Environmen- tal notes Creation: Production of 1 kg of PP requires the equivalent of about 1 3/4 kg of oil (raw material and energy).

Use: PP catches fire and burns easily, releasing smokes. Additives can reduce its inflammability.

Disposal: Incineration is straightforward and comparable to oil, since PP only consists of hydrogen and carbon atoms. In an incineration plant only water and carbon dioxide are produced. Heating value is equivalent to 3/4 kg of oil.
Additional Info PP has exceptional resistance to water, moisture, acid, bases and some solvents.
Photo Thomas Nissen (Computer graphics)
Copyright © 1996-2003 Torben Lenau
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