Material use
Use this ready-to-process compound directly, or blend it with pure PP in any proportion to adjust the fiber concentration and molded appearance. Run a molding trial after changing the blend ratio.
Coffee Ground Fiber PP Composite
WYC-PP P179506N
Coffee Ground Fiber PP combines polypropylene with processed spent coffee grounds, resulting in a naturally brown material with clearly visible dark particles and gentle tonal variation. The molded surface has an earthy, slightly granular appearance, and a mild roasted-coffee aroma may remain depending on processing conditions. Its PP base supports practical injection molding and everyday handling while the coffee content supplies the defining visual character. Suitable products include planters, storage boxes, desk organizers, pet accessories and café-themed display components.
Reference Price3.2 USD / KG
View COAFor this material, we use coffee as the plant source.
Physical and mechanical properties
- Density
- 1.14 g/cm³
- ASTM D792
- Tensile strength
- 23 MPa50 mm/min
- ASTM D638
- Elongation at break
- 4.6 %50 mm/min
- ASTM D638
- Flexural strength
- 40 MPa10 mm/min
- ASTM D790
- Flexural modulus
- 1,250 MPa10 mm/min
- ASTM D790
- Notched Izod impact strength
- 3.6 kJ/m²23 °C
- ASTM D256
- Shore hardness
- 71.5 HD
- ASTM D2240
Usage Guidelines and Processing Notes
Color matching
Color matching is supported within a limited range. Because the natural base is dark, select dark color families; pale or bright colors cannot reliably cover the original tone. Confirm the target with a molded color sample.
Processing method
Injection molding.
Mold care
Use hardened, corrosion-resistant mold steel. Clean the mold promptly after processing, because plant-fiber composite material left in the tooling can corrode the mold if it is not removed in time.
Reference Processing Temperatures
| Stage | Reference setting |
|---|---|
| Drying | 100–120 °C for 4–5 h |
| Rear zone | 155–165 °C |
| Middle zone | 160–175 °C |
| Front zone | 160–175 °C |
| Nozzle | 160–175 °C |
| Mold | 60–70 °C |
Important: These settings are starting references only. Adjust them for the machine, mold, part geometry and residence time. Excessive temperature or residence time can scorch or carbonize the plant fiber; begin at the lower end and increase only as needed.
Supported Certificates
Material Safety Data Sheet
Material safety documentation can be provided for product handling and project review.
RoHS
RoHS compliance documentation can be supported according to the applicable grade and production batch.
The images above are cropped reference excerpts. Document contents, report numbers and test details vary by material grade and production batch.
Material Consultation
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Share your product, process, color and performance requirements. We can help review the grade, fiber content and sample-trial route.