Bioplastic Extruder/Research Development
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Contents
Overview
Bioplastics
Cellophane is reformulated cellulose (wood), produced via an acid and base dunk of sawdust. This may be used in glazing. Car bodies may be made; the original car bodies for Ford were soybean-derived bioplastics.
Polylactic acid (PLA) can be made by fermenting starch or with hay in silage.
Mycelium can be placed in a mold with grain husks, wheat straw or any of a wide variety of other biomass (with different end product results) and be made into a variety of useful products, including a durable closed cell foam substitute.
Links
- plastics extrusion
- Wikipedia: Plastics Extrusion
- Wikipedia: Thermoforming
- Wikipedia: Vacuum Forming
- Wikipedia: Injection Molding
- Strictly Extrusion
- Society of Plastics Engineers
- SPE Online Technical Library
Open Source Extruders
- Precious Plastic - prototype filament maker. Note that the hopper feed mechanism appears to be robust, so that regrind can be used readily.
Plastic Lumber Version Of the Precious Plastic Design
- Compare to Lyman Filament Extruder, which works well with pellets, but it is not clear if it would work robustly with regrind.
Co-Extrusion
Do different plastics mix well for making 3D printing filament? Yes, there are good combinations shown at [1]
- Good examples: PC/PET, ABS/PVC. For PC/PET - that could be a good combination mixing best properties of both.
See Also
- Waste Plastic Extruder: Literature Review
- Bioplastics
- Plastic Extrusion & Molding
- Upper Austria Green Biorefinery
- Polyethylene from Ethanol
Industry Standards
Horsepower, heating power, and screw size will determine throughput.
- Extruders on Ebay - $3k up - 30 hp motor, 1.5 - [2]
- Greiner-GCE-30-F-CO-Extruder-Plastics-Processing-Machine-30mm-1-1811-034-Screw - $4500 on Ebay - info PDF - [greiner-extrusion-group.com/files/greiner/downloads/Greiner%20Extrusion%20Group_Fact%20Sheet%20Co-Extruder_GCE_DE_EN.pdf]. Smallest one is 10kW - 5kW motor, and 2 zones of barrel heating at 1 kW each, and 2 zones of toolhead heating at 1 kW each.
Related search that may be useful or merged/integrated
