Baerlocher PVC Profiles 2007 Sofia

• Dr. A. Schmid • page 1

Customers’ Seminar

Sofia/BG, May 22nd 2007

Baerlocher Additives for PVC Profiles

Dr. Alexander Schmid


Overview

PVC stabilisation globally

The situation for Lead stabilisers

Calcium based stabilisers for profiles– Stabiliser development– Stabiliser performance

Conclusion / Outlook


PVC Profiles: World Market 2006 and Stabilisers

N-America

1400 kt

1400 kt

15%

1200 ktW-Europe

China

Russia

30 kt

India

240 kt

Turkey

Pb

Sn

Ca/Zn

35%

330 kt

CEE

600 kt

5%


Stabilisers for PVC Pipes & Fittings: World Market

99

%1

%

77

%3

%2

0%

North America

South America

Europe

Africa

Middle EastFar East

Pb

Sn

Ca/Zn

Ca-org.


Stabilisers for PVC Cables & Wires: World Market

South America

75

%2

5%

North America

Africa

Europe

Middle East

Far East

Pb

Ca/Zn


S-PVC & Modifier

Co-Polymer

CaCO3

[phr]

TiO2

[phr]

Germany + + 5.0 – 7.0 3.0 (– 6.0)

France + + 5.0 – 6.0 4.0 (– 6.0)

Great Britain + 0 6.0 – 8.0 4.0 (– 6.0)

Turkey + 0 5.0 min. 5.0

Pb stabiliser: 4.5 – 5.5 phrCa-based stabiliser: 3.5 – 4.5 phr

PVC Window Profiles: European Recipes


PVC Window Profiles: Overseas Recipes

USA China

S-PVC, k-value 68 100 100

CPE 7.0 – 9.0

Acrylate Modifier 6.0

CaCO3 4.0 – 6.0 5.0 – 10.0

TiO2 8.0 – 10.0 5.0

Stabiliser Sn: 2.5 – 3.5 Pb: 4.5 – 5.5

Processing Aid 1.0 0.5 – 1.5


Situation for PVC Stabilisers – Vinyl 2010

„Voluntary Commitment“ of the European PVC

Industry concerning Lead reduction

(Initiative Vinyl 2010)

Targets for decrease of Lead consumption

(based on year 2000 levels)

• 15% by 2005 • 50% by 2010

• 100% by 2015


REACH (Registration, Evaluation and Authorisation of Chemicals) to come into force 01.06.2007

Lead based stabilisers expected to be phased out in the EU within 2010 – 2012

Threats expected for certain Tin stabilisers

Baerlocher Calcium based stabilisers are designed to pass REACH process

Situation for PVC Stabilisers – REACH


Lead versus Calcium based – Cefic Figures

0

10

20

30

40

50

60

70

80

90

100

1999 2000 2001 2002 2003 2004 2005 2006 2007 2008

Co

nsu

mp

tio

n [

%]

Pb Ca/Zn

Forecast


Stabilisers for PVC Profiles: Forecast

North AmericaEurope

Asia

Pb

Sn

Ca/Zn


Stabilisers for PVC Pipes & Fittings: Forecast

North America

South America

Europe

Africa

Middle EastFar East

Pb

Sn

Ca/Zn

Ca-org.


Stabilisers for PVC Cables & Wires: Forecast

South America

North America

Africa

Europe

Middle East

Far East

Pb

Ca/Zn


Calcium based Stabilisers

Calcium based Stabilisers

… is a common name for all stabilisers without

Pb, Ba, Cd (and Sn)

Available systems:

- Based on Polyols and Metal Soaps

- Based on Hydrotalcite

- Based on Ca/Al-Hydroxy phosphite

- Based on Zeolite

All of these need further co-stabilisers, anti-oxidants and

lubricants in varying amounts


Evolution of Calcium based Stabilisers for Profiles

Base Stabiliser Dosage Stabilisation

Costs

Base Stabiliser Dosage Stabilisation

Costs

1980s Metal Soaps + 6.0 – 7.0 phr 3× PbPolyols

1980s Metal Soaps + 6.0 – 7.0 phr 3× PbPolyols

1990s Zeolite 5.5 – 6.0 phr 2× Pb

Layered Compounds 4.5 – 5.0 phr

1990s Zeolite 5.5 – 6.0 phr 2× Pb

Layered Compounds 4.5 – 5.0 phr

2000 New Generation 3.5 – 4.5 phr 1.3× Pb2000 New Generation 3.5 – 4.5 phr 1.3× Pb

2005 Latest Generation 3.0 – 4.0 phr similar to

Pb

2005 Latest Generation 3.0 – 4.0 phr similar to

Pb


Latest Calcium based Stabilisers

General Advantages:

- reduced dosage and costs

- rheology and stabilisation according tocustomer‘s needs

- possible incorporation of processing aid

- potential melt products


Calcium based Melt Products

Advantages:

Desired, well-known product form

Dust-free

Good flowability, easy dosage

Good handling properties (transport, storage)

Excellent dispersability

Challenges:

Sensitive production procedure

Raw materials limitations


Physical Properties of Stabiliser Compounds

~1.8

~1.1

0

0,2

0,4

0,6

0,8

1

1,2

1,4

1,6

1,8

[g/c

m3 ]

Pb Ca/Zn

Bu

lk d

ensi

ty

60%


Specific Gravity of Dryblends

1.47 1.44

0

0,2

0,4

0,6

0,8

1

1,2

1,4

1,6

1,8[g

/cm

3 ]

Pb Ca/Zn

- 2%S

pec

ific

gra

vity

S-PVC 100.00 100.00E-ST 5D 7.00 7.00 phrFiller 10.00 10.00 phrTiO2 3.50 3.50 phrPb (Old Gen) 5.90 / phrCa/Zn (New Gen) / 3.75 phr


Pb and Ca/Zn Dry Blends

Mixing Curves

0

20

40

60

80

100

120

140

0 20 40 60 80 100 120 140 160

Temparature ºC

Am

ps

Pb Dry Blend Ca/Zn Dry Blend


Melting characteristics of Pb v Ca Organic tablet stabilisers


PVC Profile Formulations

White Window Profile Brown Technical Profile

Pb Ca/Zn Pb Ca/Zn Ca/Zn

colour

PVC 100 100 100 100 100

Acrylic Modifier 7.0 7.0 6.9 6.9 6.9

Filler 7.0 7.0 10.0 10.0 10.0

Pigment 3.0 3.0 3.6 3.6 3.6

Stabiliser 5.4 3.8 5.2 3.7 3.1


Artificial Weathering: XENO-TEST

0

1

2

3

4

5

6

0 500 1000 2000 3000 4000 5000

[Hours]

[b-v

alu

e]

Pb Ca/Zn

White Window Profile


Natural Weathering: BANDOL (Southern France)

0

1

2

3

4

5

6

7

8

0 6 12 18 24 30 36 42 48 54 60

[Months]

[b-V

alu

e]

Pb Ca/Zn

White Window Profile


Artificial Weathering: QUV-TEST

Pb

Ca/Zn

Ca/Zn colour

Dark Brown Technical Profile

0 h 1000 h 2000 h


Pb

Ca/Zn

Ca/Zn colour

0 h 500 h 1000 h

Brown Technical Profile

Artificial Weathering: QUV-TEST


Technical solutions with Ca-based stabilisers exist

Ca-based stabilisers already price competitive with Pb-based

stabilisers

Baerlocher is engaged to adjust Ca-based stabilisers to REACH

Baerlocher introduces Ca-based stabilisers as melt pastilles

Competent adaptation of coloured Ca/Zn-recipes and pigments

generates an improved weatherability, compared to Pb-

systems

Conclusion - Trends for Calcium based Stabilisers

Baerlocher PVC Profiles 2007 Sofia

Documents

Transcript of Baerlocher PVC Profiles 2007 Sofia