Product design Criteria: Biodegradable Polymers

Created by: Lee Sargeant
Created on: 17-05-16 17:02

What are the different types of Biodegradable plastics

PHA's and PHBs, Oxo-degradable polymers, Water soluble polymers

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What are Oxo-degradable polymers, and what do the additives help?

Oxo-degradable polymers have additives to promote short degradation times of 5yrs or less, help break down into fine powder from effects of heat, oxygen, moisture and mechanical stress.

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What can you add to conventional polymers such as PP, PE, PVC PET or PS to help them breakdown?

using 'Bio-batch' additives will help to break the material down in less than 5 years.

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How are PHA's (biopol) produced?

using bacteria to aid in fermenting plant sugars. harvested from bacteria grown in cultures

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What is the most popular type of PHA and whats it used for?

PHB, used for packaging for similar to polypropylene properties.

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Name PHA's (biopol) applications

wide range applications in medicine: films, screws, boneplates and slow-release medication

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What are photo-degradeable polymers?

Break down in UV light

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Give 2 example of water-soluble polymers

liquid detergent pouches that dispense detergent when only in contact with warm water, laundry bags- clothes held by bags until placed in larger washing machine protecting hospital staff

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Which type of biodegradable polymers are used in medication?

PHS's (biopol) - slow release medication, bone plates, screws.

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Name some popular biodegradable polymer applications

Shopping bags, some soft drinks bottles, packaging, disposable pots/bows, gardening medical and sanitary

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Name a cellulose based polymer

Biopol

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Name a corn starch based polymer

PLA

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name PLA (polylactides) properties and commen applications

transparent and similar properties to polyethylene (propylene), bottles and films for carrier bags, plantpots

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Other cards in this set

Card 2

Front

What are Oxo-degradable polymers, and what do the additives help?

Back

Oxo-degradable polymers have additives to promote short degradation times of 5yrs or less, help break down into fine powder from effects of heat, oxygen, moisture and mechanical stress.

Card 3

Front

What can you add to conventional polymers such as PP, PE, PVC PET or PS to help them breakdown?

Back

Card 4

Front

How are PHA's (biopol) produced?

Back

Card 5

Front

What is the most popular type of PHA and whats it used for?

Back

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Product design Criteria: Biodegradable Polymers