Plastic is one of the best modern human inventions over the past 100 years, bringing unparalleled benefits to humankind. However, given its durability and longevity, plastic waste becomes a huge challenge for a greener, better world.

Greenhope Degradable Plastic

The Challenges

  • When Plastic becomes waste, its durability becomes a problem – it takes Plastic 500 to 1000 years to naturally degrade
  • In its natural degradation process, plastic physically fragments to become dangerous micro plastic
  • Human behavior and bad waste management cause up to 8mn tons plastic / year “leak” into the ocean

Why Degradable Solutions?

4R

3R (Reduce, Reuse, Recycle) is good and we actively support it, however it is not enough because it does not deal with Plastic’s end-of-life. We need the 4th R: Return to Earth, to really return plastic naturally back to earth and holistically close the life cycle loop.

USEON Solutions

1) Degradable Additive Masterbatch

Compound the Degradable Additive Masterbatch with any plastic such as PE/PET/PP etc. It speeds up the molecular and chemical degradation of plastic, thus helping to solve the massive accumulation of plastic waste.

Our customer Greenhope from Indonesia has this masterbatch with name Oxium which is US-patented. Oxium’s proprietary formula is made of naturally available minerals that are non-toxic, non-heavy metals.

Oxium is used as an additive in low dosage towards regular plastic production and has proven to be an effective and every economical solution towards.

Technical Specifications of Extruder:

ModelDiameter
(mm)
Max. Speed
(rpm)
Motor
(kW)
L/DOutput
(kg/hr)
SAT4041500454480-100
SAT5251.45009044200-300
SAT6562.450032044300-400

2) Biodegradable Plastic: PPC, PABT, PLA, PBS, PCL, TPS, PVA, PVOH

We would like to share the experience for the following special process:

a) Melt PBAT compounding with PLA or PPC

  • The melt PBAT material with temperature 240℃ is feed into twin screw extruder by melt pump, and add the PLA or PPC pellets and chain extender additive into extruder by loss-in-weight feeder. This is direct compounding which can save 40% energy and better dispersion, comparing with PBAT pellet compounding with PLA or PPC
  • Need long L/D for reacting
  • Need under water pelletizing system for high output capacity and automatically process
  • Need vacuum packing system

Technical Specifications of Extruder:

ModelDiameter
(mm)
Max. Speed
(rpm)
Motor
(kW)
L/DOutput
(kg/hr)
SAT110108300250561200-1500
SAT135130300355561800-2200
SAT150150300455562600-3000

b) PLA/PBS compounding with starch powder

  • Premix and long L/D for better dispersion
  • Special feeder for anti-bridge
  • Air cooling die face cutting for PLA base, and air cooling strand pelletizing for PBS base
  • Need vacuum packing system

c) PVA compounding with starch

  • Two stage mixer for premixing and reacting
  • Special feeder for anti-bridge
  • Air cooling die face cutting system, need water cooling jacket for die plate
  • Need vacuum packing system

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