Bio-Plastics

The term “bioplastics” is actually used for two separate things:

 

Bio-based plastics :

vThis means that the material is (partly) derived from biomass or plants ie which are renewable sources.

vBiomass for plastics are usually from corn, sugarcane, or cellulose. Therefore this is not fossil fuel based, hence it is also called as Green material

 

Biodegradable plastics :

vPlastics that can be completely broken down by microbes in a reasonable timeframe, given specific conditions.

vMicro-organisms in the environment are able to convert biodegradable materials to natural substances such as water, CO2, and compost without additives within a certain time and at a particular location.

 

NOTE: Not all bio-based plastics are biodegradable, and not all biodegradable plastics are bio-based.

Bio-based plastics : “Beginning of Life” of plastics

Biodegradable/compostable: “End of life of plastics

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What does compostability mean ?

Fragmentation – first step in the biodegradation process, in which organic matter is broken down into microscopic fragments

Biodegradability – Complete microbial assimilation of the fragmented product as a food source by the microorganisms in the disposal environment

Compostability – Complete carbon assimilation within 180 days in an industrial compost environment.

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Bio-based And Bio Degradable: These are usually materials

made from cellulose acetate (plant-based) or lactic acid-based

blends (or pure starch blends) and are used for primarily single

use plastics like cutlery or some applications across pens/toys etc.

 

Some examples are :

PLA : Poly Lactic Acid

PHA : Poly Hydroxyalkanoate

And other plant based cellulose compounds

 

They are completely biodegradable as per the standards specified

under ASTMD6400 / EN13432

 

Oil-Based and Bio-degradable : Traditional oil based polymers

which are biodegradable have existed for many years and usually

being used for applications such as stents, tissue engineering

and other biomaterial applications.

 

Some examples are :

uPBAT, PBS and PCL

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CIPET: BIODEGRADABILITY TEST REQUIREMENTS

1. Biodegradation/Mineralization:

Ultimate aerobic Biodegradation ( the breakdown of organic contaminants such as carbon  by microorganisms when oxygen is present) must be more than 90% within 180 days

 

2. Disintegration:

After 12 weeks not more than 10% of the product’s original dry mass should remain when passing through 2mm sieve


3. Ability of compost to support plant growth:

The Percentage of Seed germination should be greater than 90% for 2 different plant species.

Further in order to conserve the natural resources, landfill space and energy, United Precision Plastics believes in “Reduce Reuse Recycle” and accordingly we have upgraded our products.

We are now in possession of the GLOBAL RECYCLED STANDARD (GRS) certificate for recycled products.