Terratek® BD4100

1 of 39 products in this brand
Terratek® BD4100 resins are a proprietary blend of bio fillers, natural and synthetic biodegradable polymers. The resins are made with ingredients which pass industry standards for composting.

Polymer Name: Thermoplastic Starch (TPS)

Processing Methods: Injection Molding

Labeling Claims: Bio-based, Biodegradable, Sustainable

Density: 1240.2 - 1240.2 kg/m³

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Fillers Included
Plastics & Elastomers Functions
Technologies

Features & Benefits

Applications & Uses

Plastics & Elastomers Processing Methods
General Processing Recommendations

Green Dot’s Terratek® BD4100 must be dried due to the hydroscopic nature of the polymers used in this material and their tendency to hydrolyze in the presents of water, pre-drying the resin is required.  Green Dot recommends that the moisture level of the resin not be above 0.05% as measured by loss-in-weight at 270°F for 15 minutes.  If the moisture is above the recommended level, the resin should be dried in a desiccant dryer at 150°F until the moisture is at or below the recommended level.  Failure to dry the material will result in material hydrolysis which can cause excessively high flow/flashing, brittleness/low strength and can result if shorter than normal shelf life of molded parts.

Typical injection molding temperatures are listed below, these are only a guide and may need to be changed based on the particular application :

Rear 310°F to 360°F
Middle 320°F to 360°F
Front 320°F to 360°F
Nozzle 320°F to 360°F
Mold 40°F to 95°F

The melt temperature of the resin should remain below 400°F to prevent the material from discoloring and having a burnt odor.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Specific Gravity1.2402ASTM D792
Shrinkage (48 hrs, Parallel)0.0101in/inASTM D955
Shrinkage (48 hrs, Perpendicular)0.005in/inASTM D955
Melt Index (190°C, 2.06kg)34.79g/10 minASTM D1238
Tensile Strength (Yield)4354.9psiASTM D638
Tensile Modulus81084.3psiASTM D638
Elongation138.4%
Notched Izod1.941ft lb/inASTM D256
Flex Strength3812.5psiASTM D790
Flex Modulus82568.6psiASTM D790
HardnessA97Shore AASTM 2240

Packaging & Availability

Packaging Type
Packaging

Terratek® BD 4100 resin is typically packaged in a sealed plastic-lined Gaylord at 1200 lbs/Gaylord or 250 lbs fiber drums.

Storage & Handling

Storing

The product should be stored in a cool, dry, and sanitary area to achieve maximum stability.  Keep material in a sealed package or container to prevent excess moisture absorption.