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Technische Universität Berlin Institut für Werkzeugmaschinen und Fabrikbetrieb Univ.Prof. Dr.Ing. Günther Seliger Seite 1 © IWF TU Berlin Marcel Siewert Department for Machine Tools and Factory Management, Technische Universität Berlin, Germany Reshaping of plastic bottles

Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

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Page 1: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 1

© IWF TU Berlin

Marcel Siewert

Department for Machine Tools and Factory Management, Technische Universität Berlin, Germany 

Reshaping of plastic bottles

Page 2: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 2

Content

Introduction & Motivation

Reshaping

Plastic bottle brick 

Page 3: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 3

Content

Introduction & Motivation

Reshaping

Plastic bottle brick 

Page 4: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 4

Introduction & Motivation

160 million plastic bottles produced p.a.

Global, only 20% recycled

Problems

Pollution 

Sea & Landscape

Resource inefficiency

Plastic bottles are made of 25g Oil

Page 5: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 5

Introduction & Motivation

Solution: Plastic recycling systems

Plastic recycling systems extracting raw materials from waste

End of life treatmentEnd of life treatmentUsageUsageManufacturingManufacturingExtracting raw 

materialExtracting raw 

materialEnvironment

Recycling(material)

PET GranulateDeposit refund system

Page 6: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 6

Recycling systems are a good way to avoid pollution and to save resources but these systems are connected with know how, high investments (equipment, infrastructure) and running costs.

Problem: Not in every area are recycling systems, but in all areas are plastic bottles.

Introduction & Motivation

Recycling system

$

$

$

$

$

€€

$

Page 7: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 7

Content

Introduction & Motivation

Reshaping

Plastic bottle brick 

Page 8: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 8

Reshaping 

Reshaping as a new part of extending product life cycle

Where no recycling system exist, plastic bottles are just waste

Reshaping is a new part of value creation process

Different  shapes for different needs

Independent of recycling systems 

Longer product life cycle through multiple usages

Page 9: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 9

Reshaping: Product life cycle

End of life treatmentEnd of life treatmentUsageUsageManufacturingManufacturingExtracting raw 

materialExtracting raw 

material

Reshaping

Environment

Recycling(material)

PET GranulateDeposit refund system

Reshaping bottle for second life cycle

Adding a complementary life cycle to the existent cycle

Page 10: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 10

Content

Introduction & Motivation

Reshaping

Plastic bottle brick 

Technique

Social business & Social entrepreneurship

Disaster area

Page 11: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 11

Motivation

Worldwide over 100 million people are homeless

Massive pollution through non recycled plastic bottles

Erosion problems 

Plastic bottle brick 

Approach

reshape plastic bottles to bricks

Benefits of plastic stone

Fireproof

Cheap resources

Isolation

Unbreakable 

www.welthun

gerhilfe.de

www.noo

ws.de

reshapingreshaping

Further use of plastic bottle as 

brick replacement

Page 12: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 12

Plastic bottle brick

Why reshaping to bricks?

Houses/Walls

Erosion prevention

Cubblestones prevent erosions

Page 13: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 13

Plastic bottle brick: Technique 

Reshaping process

Bottles of PET deforms at 80°C. 

1,6% shrinkage based on volume change after filled with hot water.

Put  bottle in press

Push press down and fill hot water over bottle opening into bottle

Hold position and increase water pressure

Fill cold water into bottle to solidify plastic

Source: [Ros‐04]

Page 14: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 14

Plastic bottle brick: Technique 

Plastic bottle brick manufacturing process

Filling sand, soil and water into bottle

Compressing  to solid mass

reshapingreshaping FillingFilling

legend: = Process

Reshaping of plastic bottle

Filling with sand, soil and 

water

Page 15: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 15

Plastic bottle brick: Technique 

Manufacturing process of PET rocks can be realized with high and low technical know how, by different process accuracy.

Low Tech

Manuell compression

Hot Water

High Tech

Stretch blow molding

High accuracy

Square brick Lego Brick T – H – Model 

two different shapes fits into each other

Two presses needed

The “united bottle”

Interlocking shape 

Needed know how Needed know how 

www.ethz.ch

Page 16: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 16

Content

Introduction & Motivation

Reshaping

Plastic bottle brick 

Technique

Social business & Social entrepreneurship

Disaster area

Page 17: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 17

Plastic bottle brick: Social business & Social entrepreneurship 

Social business (Prof. Yunus)

Social business is d efined by by three requirements:

1. social objectives: it needs to have positive social objectives: e.g. health, education, poverty, environment or climate urgency

2. non‐profit distribution: investors can not take profits out of the enterprise as dividends

3. A social business has to work economically efficient

Investors could be governments, Founds, Non‐Profit Organizations, …

Social entrepreneurship

A Social entrepreneur try to solve a problem in order to earn money

Privet Investments with dividends

Page 18: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 18

Plastic bottle brick: Social business & Social entrepreneurship 

Social business Social entrepreneurship

Pro:+ value adding  in the regions of high pollution+ decentralized manufacture structures+ low investments and running costs+ new jobs+ high social impact+ reduce of pollution

Pro:+Forms without mortal (interlocking)+ mass product+ cross‐subsidization (people buy it in non disaster areas, to support disaster areas)+lower transport cost of water bottles

Contra:‐ Low productivity (piece/Time)

Contra: ‐ less participators ‐ high investments‐ infrastructure needed

www.ethz.ch

The “united bottle”,  design concept

Page 19: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 19

Content

Introduction & Motivation

Reshaping

Plastic bottle brick 

Technique

Social business & Social entrepreneurship

Disaster area

Page 20: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 20

Plastic bottle brick 

Use in disaster areas

Water is supplied in plastic bottles by disaster protection 

Chile: 500.000 bottles from Argentina

Serbia: 208.000 Bottles

At the same time, the number of homeless people rises

1,5 Million in Haiti

Recycling systems may collapse

Self‐help culture

Homeless & workless collect and converse bottles

Way out of poverty & homelessness

Less pollution

Page 21: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 21

Conclusion

Reshaping process :

Creates a value

Prevents pollution

Creates jobs

Can be realized with low technical equitment 

Reshaping is not:

An alternativ to existing recycling systems

Page 22: Reshaping of plastic bottles - TU Berlin€¦ · plastic bottles Erosion problems Plastic bottle brick Approach reshape plastic bottles to bricks Benefits of plastic stone Fireproof

Technische Universität BerlinInstitut für Werkzeugmaschinen und FabrikbetriebUniv.‐Prof. Dr.‐Ing. Günther Seliger Seite 22

It is possible…

The “united bottle”,  design concept