AKROMID T (PPA) AKROLOY PA (PA Blend) + PARA

Transcription

1 COMPOUNDS FOR METAL REPLACEMENT AKROMID T (PPA) AKROLOY PA (PA Blend) + PARA AKRO-PLASTIC GmbH Member of the Feddersen Group

2 Meeting Your Requirements For decades, polyamides have formed the leading group of engineering plastics for a wide range of applications i.e. in the automotive, mechanical, E/E or construction industry as well as for sport and leisure. Overall the robust mechanical performance, chemical resistance and easy processing as well as an optimal price-performance ratio are key factors for this success. Increasing requirements such as higher processing temperatures, a more consistent performance for conditioned polyamides or the need for better surface finish, have pushed the limits and require for new products. This is where compounds based on polyphthalamide, blends of PA 6.6 with PA6-I/6-T or polyarylamid, enter the scene. These new products typically aim for metal replacement applications at different temperature ranges. The choice of those materials depends on the requirements, because all of them offer a unique package of advantages.

3 AKROLOY PA (PA PA 6I/6T Reinforced) + PARA Series Typical values for products at 23 C specification method Unit PA GF 3 (6415) PA GF 4 (6416) PA GF 5 (657) PA GF 6 (6418) PA ICF 3 (5269) PA ICF 4 (527) PA GF 5* (6546) PARA GF 5 1 (575) PARA GF 6 1 (6165) PARA ICF 4 (6128) Mechanical properties d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. Tensile modulus 1 mm/min ISO 527-1/2 MPa 9,8 9, 13, 12,5 17, 15,5 2, 21, 25, 23, 35, 32, 17, 15,5 19, 19, 24, 24, 39, 39, Tensile stress at break 5 mm/min ISO 527-1/2 MPa Elongation at break 5 mm/min ISO 527-1/2 % Flexural modulus 2 mm/min ISO 178 MPa 9,5 9,5 12,5 12,5 16,5 15, 21, 21, 21, 21, 35, 17,5 16, 2, 2, 37, 36, Flexural strength 2 mm/min ISO 178 MPa Flexural strain at break 2 mm/min ISO 178 % Charpy impact strength 23 C ISO 179-1/1eU kj/m² Charpy impact strength -3 C ISO 179-1/1eU kj/m² Charpy notched impact strength 23 C ISO 179-1/1eA kj/m² Charpy notched impact strength -3 C ISO 179-1/1eA kj/m² Electrical properties Surface resistivity IEC 693 Ohm 1.E+4 1.E+4 1.E+4 1.E+4 1.E+4 1.E+4 Thermal properties d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. Melting point DSC, 1 K/min ISO C Temp. of deflection under load, HDT/A 1.8 MPa ISO 75-1/2 C Temp. of deflection under load, HDT/B.45 MPa ISO 75-1/2 C Temp. of deflection under load, HDT/C 8 MPa ISO 75-1/2 C (CLTE), flow (CLTE), transverse Flammability 2 C 8 C ISO /2 1E-4/K 2 C 8 C ISO /2 1E-4/K 5, h IEC 6216 C 2, h IEC 6216 C Flammability acc. UL mm UL 94 Class HB HB HB HB HB HB HB HB HB HB Burning rate acc. FMVSS 32 (< mm/min) General properties >1 mm thickness FMVSS Density 23 C ISO 1183 g/cm³ Content reinforcement ISO 1172 % Moisture absorption 7 C/62 % r.h. ISO 111 % Verarbeitung Flowability Flowspiral¹ AKRO mm Flowability Flowspiral² AKRO mm Processing shrinkage, flow ISO % Processing shrinkage, transverse ISO % d.a.m. = dry as moulded test values = residual moisture content <.1 %. cond. test values = conditioned, measured on test specimens stored according to DIN EN ISO = passed ¹ = AKROLOY PA: mould temperature: C, melt temperature: 32 C, injection pressure: 75 bar, cross section of flow spiral: 7 mm x 1 mm ² = AKROLOY PA: mould temperature: C, melt temperature: 32 C, injection pressure: 75 bar, cross section of flow spiral: 7 mm x 2 mm *provides extraordinary increased mechanical properties in crossflow direction 2 3

4 AKROMID T Series (Polyphthalamide) Typical values for products at 23 C specification method Unit PA T1 GF 4 3 (6415) (3464) T1 PA GF 4 9 (6416) (3499) PA T1 GF 5 (657) (311) T1 PA GF 5 69 (6418) (3257) PA T5 ICF GF 4 3 (5269) (6486) PA T5 ICF GF 5 4 (527) (6247) PA T5 GF 5* 6 (6546) (6748) PARA T1 ICF GF (575) (5147) T1 PARA CGM GF 15/1 6 1S1 (6165) (6431) PARA T1 GF ICF 15 S1 4 (6128) (4625) Mechanical properties d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. Tensile modulus 1 mm/min ISO 527-1/2 MPa 15,5 9,8 15,5 9, 15, 13, 14, 12,5 2, 17, 2, 15,5 19,5 2, 18,5 21, 16, 25, 16, 23, 2, 35, 2, 32, 21, 17, 21, 15,5 18, 19, 17,5 19, 15, 24, 24, 39, 6, 39, Tensile stress at break 5 mm/min ISO 527-1/2 MPa Elongation at break 5 mm/min ISO 527-1/2 % Flexural modulus 2 mm/min ISO 178 MPa 14,5 9,5 9,5 12,5 14,5 12,5 16,5 18, 15, 21, 17, 21, 21, 15,6 21, 15, 35, 19, 19, 17,5 22, 16, 22, 2, 17, 2, 16, 37, 36, Flexural strength 2 mm/min ISO 178 MPa Flexural strain at break 2 mm/min ISO 178 % Charpy impact strength 23 C ISO 179-1/1eU kj/m² Charpy impact strength -3 C ISO 179-1/1eU kj/m² Charpy notched impact strength 23 C ISO 179-1/1eA kj/m² Charpy notched impact strength -3 C ISO 179-1/1eA kj/m² Electrical properties Surface resistivity IEC 693 Ohm 1.E+4 1.E+4 1.E+4 1.E+4 1.E+5 1.E+5 1.E+5 1.E+4 1.E+4 Thermal properties d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. Melting point DSC, 1 K/min ISO C Temp. of deflection under load, HDT/A 1.8 MPa ISO 75-1/2 C Temp. of deflection under load, HDT/B.45 MPa ISO 75-1/2 C Temp. of deflection under load, HDT/C 8 MPa ISO 75-1/2 C (CLTE), flow (CLTE), transverse Flammability 2 C 8 C ISO /2 1E-4/K C 8 C ISO /2 1E-4/K , h IEC 6216 C , h IEC 6216 C Flammability acc. UL mm UL 94 Class HB HB HB HB HB HB HB HB HB HB Burning rate acc. FMVSS 32 (< mm/min) General properties >1 mm thickness FMVSS Density 23 C ISO 1183 g/cm³ Content reinforcement ISO 1172 % Moisture absorption 7 C/62 % r.h. ISO 111 % Verarbeitung Flowability Flowspiral¹ AKRO mm Flowability Flowspiral² AKRO mm Processing shrinkage, flow ISO % Processing shrinkage, transverse ISO % d.a.m. = dry as moulded test values = residual moisture content <.1 %. cond. test values = conditioned, measured on test specimens stored according to DIN EN ISO = passed ¹ = AKROMID T: mould temperature: 13 C, melt temperature: 34 C, injection pressure: 75 bar, cross section of flow spiral: 7 mm x 1 mm ² = AKROMID T: mould temperature: 13 C, melt temperature: 34 C, injection pressure: 75 bar, cross section of flow spiral: 7 mm x 2 mm 4 5

5 Processing Recommendations Product Characterisation AKROMID T1, T1 9, T5 and AKRO- LOY PA, PARA can be processed on commercially available injection moulding machines with standard screws according to the recommendations of the machine manufacturer. Please refer to the diagram below for our recommended machine, mould and dryer settings. Bagged-product processing: Unda m- aged bags with the original seals intact can generally be processed without pre-drying. Excessive drying can result in filling and surface problems; processing below a residual moisture content of.2 % is therefore not recommended. θ 5 θ 4 θ 3 θ 2 θ 1 θ 6 For applications made of thermoplastic compounds higher temperatures can become critical. Semi crystalline thermoplastics consist of crystalline and amorphous contents. The amorphous phase starts to soften at the glass transition temperature (T g ). This results in a reduction of strength and stiffness in line with an increase of creep. The tool temperature during moulding should be above the T g. Otherwise internal stresses are frozen and will be released once the part temperature reaches T g, resulting in recrystallisation, additional shrinkage and possibly warpage. Polyphthalamides (PPA) show a relatively high T g, which qualifies these products for demanding applications in the automotive industry which are exposed to higher temperatures like for instance the cooling pump housing. Depending on the specific kind of PPA, the T g can vary. AKROMID T5 shows a T g of around 13 C, around 15 C higher than AKROMID T1 and even 8 C higher than PA 6.6. The shear modulus over temperature illustrates the effect of the T g very well. Up to T g the modulus and thus the mechanical performance is stable. Then, when the amorphous phase starts to soften above T g, the modulus and mechanical performance drops (Fig. 1). Another advantage of the aromatic PPA compounds is a reduced impact of moisture on the mechanical properties. Usual PA 6.6 compounds loose reversibly about 3 % of their stiffness and strength when taking up moisture, but PPA compounds keep their performance independently from moisture content. P hold P back τ * < (-3) C Shear modulus d.a.m. (Fig. 2) 1.E+1 AKROLOY PA AKROLOY PARA AKROMID T1 AKROMID T1 9 AKROMID T5 Flange θ C 6 8 C 6 9 C 6 9 C 6 9 C Shear modulus Pa 1.E+9 Sector 1 sector 4 θ C 25 3 C C C C Nozzle θ C 27 3 C C C C Meld temperature θ C 27 3 C C C C 1.E+8 Mould temperature θ C C C 13 C C Temperature [ C] Drying θ 6 8 C, 4 h 8 9 C, 4 12 h 12 C, 4 h 12 C, 4 h 12 C, 4 h AKROLOY PARA GF 5 1 natural (575) AKROMID T1 GF 5 9 black (3257) AKROMID T5 GF 5 black (6247) AKROMID T1 GF 5 1 black (311) AKROMID A3 GF 5 1 black (2387) AKROLOY PA GF 5 black (276) Holding pressure, spec. P hold 3 8 bar 3 1,5 bar 3 8 bar 3 8 bar 3 8 bar Back pressure, spec. P back 5 bar 5 bar 5 bar 5 bar 5 bar The specified values are for reference values. For increasing filling contents the higher values should be used. For drying, we recommend using only dry air or a vacuum dryer. Processing moisture levels between.2 and.1 % are recommended. For AKROMID delivered in bags, no predrying is required when properly stored. It is recommended to use opened bags completely. Material processed from silo or open boxes may have absorbed moisture and require a longer drying time. *dew point (measure for dryness of air) For detailed technical information on the products and newest data, please visit our website at: akro-plastic.com/metal-replacement 6 7

6 Product Characterisation Stress Strain Diagram for Different Temperatures AKROMID T (Fig. 2) Tensile Strength AKROLOY PA GF 5 vs. Metalle (Fig. 5) Tensile stress at break [MPa] T5 GF 5 black (6247) at 12 C T1 GF 5 black (311) at 12 C T1 GF 5 9 black (3257) at 12 C T5 GF 5 black (6247) at 14 C T1 GF 5 black (311) at 14 C T1 GF 5 9 black (3257) at 14 C Tensile Strength [MPa] C 23 C 8 C AKROLOY PA GF 5 (276) AI Si 12 (Fe) ZP3/TP4 Tensile strain [%] Source: International Zinc Association; Elvira Möller: Handbuch Konstruktionswerkstoffe 8 and data AKRO-PLASTIC GmbH Stress Strain Diagram for Different Temperatures AKROLOY (Fig. 3) Material Standard Tensile stress at break [MPa] AKROLOY PA GF 5 black (657) at 23 C (d.a.m.) A3 GF 5 1 black at 23 C (d.a.m.) AKROLOY PA GF 5 black (657) at 23 C (cond.) A3 GF 5 1 black at 23 C (cond.) T5 8 black (6454) + natural (6459) T5 GF 1 8 black (6455) + natural (646) T5 GF 2 8 black (6456) + natural (6461) T5 GF 3 8 black (6457) + natural (6462) EU1/211 FDA KTW up to 85 C W Tensile strain [%] T5 GF 4 8 black (6458) + natural (6463) T5 GF 5 8 black (625) + natural (6464) Key Temperatures for Compounds with 5 % GF (Fig. 4) Material Standard 35 EU1/211 FDA Temperature [ C] * PA GF 3 8 black (673) + natural (6727) PA GF 4 8 black (6731) + natural (6728) PA GF 5 8 black (6732) + natural (666) PA GF 6 8 black (6733) + natural (6729) AKROLOY PA AKROLOY PARA AKROMID A3 AKROMID T1 AKROMID T5 Tg C HDT A C Temp. Index 2. h Tm C * estimated value Disclaimer: All specifications and information given in this brochure are based on our current knowledge and experience. A legally binding promise of certain characteristics or suitability for a concrete individual case cannot be derived from this information. The information supplied here is not intended to release processors and users from the responsibility of carrying out their own tests and inspections in each concrete individual case. AKROMID, AKROLEN, AKROLOY, AKROTEK, PRECITE, AF-Carbon, AF-Color, AF-Complex, AF-Clean, IC, BIO-FED, M VERA and AF-Eco and are registered or applied trademarks of the Feddersen Group. 8 9

7 We Will Be Pleased to Meet You! AKRO-PLASTIC GmbH Member of the Feddersen Group Industriegebiet Brohltal Ost Im Stiefelfeld Niederzissen Germany Phone: +49() Fax: +49() info@akro-plastic.com For more locations, visit 6/218