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Resilience and areas of application of rPLA and rPETG
In the plastics industry, the recycling of PLA and PETG has become an important issue.
Recycling is an important practice to protect the planet and conserve resources.
ℋhere you will find out everything About the durability, strength and temperature resistance of recycled PLA and PETG, for both indoor and outdoor use.
PLA (polylactide) is a biopolymer made from corn starch or other plant materials and is biodegradable.When PLA is recycled, old products are broken down into their basic building blocks and then reassembled into new products.
Although recycled PLA is still biodegradable, it may degrade more slowly than new PLA, but it can be recycled again.
PLA (Polylactid)
is a biopolymer made from corn starch or other plant materials and has biodegradability.
When PLA is recycled, old products are broken down into their basic building blocks and then reassembled into new products.
Although recycled PLA is still biodegradable, it may degrade more slowly than new PLA, but it can still be recycled.
In terms of strength, PLA is a material that is not intended for applications that require high loads.
Recycled PLA is typically slightly weaker than new PLA as the recycling process can weaken the material.
Therefore, it is best to use recycled PLA for applications where strength is not critical, such as 3D printing projects that are not subject to mechanical stress.
PETG (Polyethylenterephthalatglykol)
is a thermoplastic made from recycled PET (polyethylene terephthalate) with excellent clarity and transparency. It is often used for applications such as beverage bottles, food packaging, and 3D printing.
Recycled PETG has properties similar to new non-ecological PETG as the recycling process does not affect the material as much as PLA.
PETG has a higher strength than PLA and is therefore suitable for applications that require high loads. So we use rPETG for wheels, soap dishes, outdoor objects, etc.
Recycled PETG is typically just as strong as virgin PETG, making it well suited for both indoor and outdoor applications.
technical data sheet as an example for PETG filament
Physical |
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Specific gravity Melt flow rate Water absorption Moisture absorption Mechanical | 1.27 g/cc - - 0.13% | ASTM D792 - - ASTM D570 | - - - - | ||||
Impact strength Tensile strength Tensile modulus Elongation at break Flexural strength Flexural modulus Hardness Thermal | 7.2 KJ/m² 50Mpa 1940 Mpa 120% 70.6 Mpa 2147.6 Mpa 105 | ASTM D256 ASTM D638 ISO 527 ASTM D638 ASTM D790 ASTM D790 ASTM D785 | Izod Notched @23° C (73° F) @Yield 50mm/min (2 inch/min) 1mm/min 50mm/min (2 inch/min) 1.27mm/min (0.05 inch/min) 1.27mm/min (0.05 inch/min) Rockwell R-scale | ||||
Print temperature Melting termperature Viscat softening temp. Optical | ± 195 - 225° C - ± 70° C | - - ASTM D648 | - - @ 0.455 Mpa (66psi) | ||||
Haze Transmittance Gloss | <1.0% 90% - | ASTM D1003 ASTM D1003 - | - - - | ||||
Product details, certifications and compliance |
| Diameter | Tolerance | Roundness | |||
HS Code REACH compliant RoHS certified FDA compliant | 39169090 Yes Yes Yes | 1.75mm 2.85mm | ± 0.05mm ± 0.10mm | ≥ 95% ≥ 95% | |||
temperature resistance
here PLA is more sensitive than PETG. PLA starts to soften and deform at temperatures above 60°C, while PETG can withstand temperatures of up to 80°C.
Recycled PLA is just as temperature sensitive as virgin PLA, while recycled PETG is just as heat resistant as virgin PETG.
In summary, the properties of recycled PLA make it best suited for applications where strength is not a critical factor.
Recycled PETG, on the other hand, is suitable for a wider range of applications due to its high strength and temperature resistance.
However, it is important to note that recycled plastics have almost the same properties as virgin rPLA and rPETG.
