Basic Formulations and Processing of ARBOFORM

Basic objectives of the actual manufacturing and the future developments include  

Some general guidelines for optimized lignin composite processing (ARBOFORM F-grades) on injection moulding machines are summarized below  

Standard three-zone-screw (no mixing elements), standard non-return valve open (2.5 to 5.0 mm) 

Depending on frictional heat and cycle time requirement (feed rate slowed down if necessary) 

High enough to prevent the screw running jerkily More than 50% of machine capacity in most cases 50-90% of the maximum rate possible 20-60% of the machine capacity about 0.5-3 s (very low shrinkage) 

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