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Updates every hour. Last Updated: 9-May-2026 12:15 ET (9-May-2026 16:15 GMT/UTC)
9-Nov-2025
Torrefied sawdust gives PLA composites a 6% strength bump and 94% biodegradability in 90 days, Korea study finds
Journal of Bioresources and Bioproducts
In the Journal of Bioresources and Bioproducts, researchers show that 20 % of forest residue torrefied at 220 °C raises polylactic acid tensile strength from 58.7 to 62.3 MPa, cuts water uptake 16 % and reaches near-total biodegradation under compost conditions six percentage points faster than virgin PLA. The work delivers a scalable route to bulk-load bioplastic with zero-cost mill waste without the usual loss of mechanical performance.
- Journal
- Journal of Bioresources and Bioproducts
9-Nov-2025
Wound-bamboo straw flexes past paper, PP and PLA: industrial-scale trial shows 19 MPA strength, 60% lower water uptake
Journal of Bioresources and Bioproducts
Writing in the Journal of Bioresources and Bioproducts, researchers describe a continuous, glue-assisted winding line that converts flattened bamboo splits into 8-, 10- and 12-mm drinking straws with compressive strength (16–19 MPa) and wet strength (15.6 N vs 3.6 N for paper) that out-perform polypropylene, PLA and coated paper rivals. Soaking plus 60 °C ultrasonic treatment leaches colour bodies and starch, cutting later mould risk by >90 % and water absorption by roughly 40 %. Consumer acceptance among 1 500 café users topped 90 %; raw-material cost per straw is US$0.0007 and factory-gate price US$0.014—about half that of commercial paper straws. Life-cycle data suggest 0.32 g CO₂-e per straw, one-tenth the burden of PP. Authors say the route is ready for 100-million-piece annual lines serving bubble-tea chains and airlines under new plastic-ban timetables.
- Journal
- Journal of Bioresources and Bioproducts