)( D.1 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail:

Presentazione sul tema: ")( D.1 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail:"— Transcript della presentazione:

1 )( D.1 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Blow Moulding Process & Barrier Containers Part 1.3 Basic Polyethylene Chemistry

2 )( D.2 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org n Nomenclature n Identification parameters for polyolefins n Effect of variation of above parameters on finished items n Additives n Testing/Standards Basic Polyethylene Chemistry

3 )( D.3 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org MonomerComonomer Thermoplastic Thermoset PolymerizationPolymer Homopolymer Elastomer CopolymerInitiator TerpolymerCatalyst PolyolefinsTelomer Vocabulary

4 )( D.4 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org E T H Y L E N E P R O P Y L E N E B U T E N E H E X E N E O C T E N E Monomers

5 )( D.5 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Initiator Catalyst Telomer Polymerization reaction

6 )( D.6 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Major features Molecular weight Density Molecular weight distribution Molecular structure Abbreviation MW D MWD MS

7 )( D.7 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Molecular weight high low

8 )( D.8 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Molecular Weight Toughness Tenacity

9 )( D.9 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Test conditions for PE: - T° = 190°C - load = 2.16 - 5 - 10 - 21.6 kg - time = 10 minutes MI = g/10 min/190°C/load Scheme of Melt Flow Indexer

10 )( D.10 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Melt flow index HMW LMW Low melt flow index High melt flow index

11 )( D.11 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Flow and mouldability ESCR Resistance to rupture (impact, fall, traction) Gloss Heat resistance Influence of melt flow index MFI

12 )( D.12 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Density - Rigidity - Stiffness - Cristallinity

13 )( D.13 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Density

14 )( D.14 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Rigidity Resistance to rupture Heat resistance ESCR Influence of density D

15 )( D.15 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Molecular weight distribution “Oh, mamma mia!”

16 )( D.16 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Molecular weight distribution

17 )( D.17 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org - Processability - Transformation - Conversion Molecular weight distribution

18 )( D.18 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Influence of molecular weight distribution MWD is... Narrow Broad Tenacity Gloss Impact resistance Processability

19 )( D.19 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Molecular structure comparison PE-LD PE-LLD PE-HD METALLOCENE

20 )( D.20 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Viscosity Increase

21 )( D.21 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Viscosity MWD Molecular structure MW D

22 )( D.22 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Use of additives ADDITIVESABBREVIATIONS SLIP AGENT SLIP ANTIBLOCKING AGENT AB ANTIOXIDANT AO U.V. STABILISER UV COLOURING (PIGMENTS) -- ANTISTATIC -- ANTIFOG -- CARBON BLACK -- X-LINKING AGENT XL BLOWING AGENT -- CLING AGENT -- FLAME RETARDANT FR MOULD RELEASE AGENT -- PROCESSING AID -- BRIGHTENER --