GMW GMW15988-2013 Blend from Polypropylene and EPR UV Stable Issue 2 English.pdf
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1、WORLDWIDEENGINEERINGSTANDARDSMaterial Specification GMW15988Blend from Polypropylene and EPR, UV Stable Copyright 2013 General Motors Company All Rights ReservedJune 2013 Page 1 of 61 Scope1.1 Material Description. This specification covers the properties of UV stabilized blends of polypropyleneand
2、EPR and blends of polypropylene and EPR filled with glass fibers. It covers injection molding types formanufacturing of technical parts requiring a specific surface feel, e.g. soft touch applications.Note: Additional characteristics will be indicated by code letters according to the respective speci
3、ficationnumber. Code letters that may apply to this specification are defined in GMW3013.1.1.1 Additional Characteristics. Materials certified to this material specification may have additionalcharacteristics, e.g. paintable, etc. Possible additional characteristics are defined in GMW3013.1.2 Symbol
4、s. The material abbreviation according to ISO 11469 are shown in Table 1.1.3 Typical Applications. Typical applications include the following: interior trim.The differences between the Types are based on the different Tensile Modulus (stiffness) ranges as defined inTable 1.2 ReferencesNote: Only the
5、 latest approved standards are applicable unless otherwise specified.2.1 External Standards/Specifications.ASTM D3012 ISO 179 ISO 1133 ISO 6603-2ASTM E831 ISO 188 ISO 1183-1 ISO 11469ISO 75-1 ISO 294-3 ISO 1873-2 ISO 11359-2ISO 75-2 ISO 294-4 ISO 3167ISO 75-3 ISO 527-1 ISO 3451-1ISO 105-G02 ISO 527-
6、2 ISO 45772.2 GM Standards/Specifications.GMW3001 GMW3205 GMW3235 GMW14688GMW3013 GMW3221 GMW14162 GMW16853GMW3059 GMW3232 GMW144442.3 Additional References.TMC003 Material Safety Data Sheet guidance documents (available at ).3 RequirementsMaterials approved to this specification shall meet the requ
7、irements of GMW3013, General Requirements forHandling of Technical Terms of Delivery for Plastics.3.1 Requirements on Delivery. Important physical, mechanical and thermal properties that characterize thematerial are summarized in Table 1 and Table 2.Note: For each product the requirements to Table 1
8、 and Table 2 shall be documented by CertificationStatement according to GMW3013. The color shall be specified on drawings, in material specifications andotherwise.Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking per
9、mitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15988 Copyright 2013 General Motors Company All Rights ReservedJune 2013 Page 2 of 63.1.1 Requirements on Test Specimens. Unless otherwise specified, injection molding of test specimensshall be accomplished per ISO 294 with th
10、e conditions for injection molding from ISO 1873-2. Test methodsand specimen dimensions shall also be in accordance with ISO 1873-2 with the following additions:Use ISO 3167, Type A, thickness 4 mm, for tensile and flexural properties.All tests shall be performed on specimens 40 h minimum after mold
11、ing and immediately following aconditioning period of 24 h minimum in a controlled atmosphere per GMW3221, Code A, unless otherwisespecified. All tests shall be performed on unannealed specimens.The values specified in Table 1 shall be met by test specimens in natural, black or in a standard sampled
12、 colorif natural or black are not available. The values specified in Table 2 shall be met by a typical exterior color forapproval to the specification and/or by test specimens in specific colors as required during color development.For integrally colored grades where other additive systems (e.g. sta
13、bilizer) are used, the impact values shallnot decrease more than 10 % from the specified minimum value.3.1.2 Chemical Requirements. All parts manufactured from molding compounds shall be resistant to themedia they contact at their place of use.3.2 Compound Properties. See Table 1 and Table 2. The fo
14、llowing are also required for full specificationapproval. The minimum number of lots per test required is one in natural: Tensile Modulus, Poissons Ratio,Stress Strain Curve at +23 C, +85 C, -30 C; Multiaxial Impact Curve, Test Report according to GMW16853.See the TPO certification template for the
15、test procedures.3.3 Performance Requirements. Performance requirements e.g., flammability, fogging or resistance to odor,shall be specified on part drawings or in component specifications.All finished parts for Interior applications shall meet the requirements according to GMW14444.Table 1: Compound
16、 Properties (Black or Natural)Properties Standard Unit Type A Type B Type C Type D Type EMaterialAbbreviation ISO 11469 PP+EPRPP+EPR-GF6PP+EPR-GF22PP+EPR-GF25PP+EPR-GF27Tensile Modulus ISO 527-1ISO 527-2 MPa 30 to 120 400 to 800 1200 to 1900 2100 to 2900 3800 to 5200Tensile Stress atYieldISO 527-1IS
17、O 527-2 MPa 3 10 22 24 40Tensile Stress atYield after heataging (Note 1)ISO 527-1ISO 527-2 MPa(Note 2)Ash ISO 3451-1(at +600 C) % by mass 2 4 to 8 18 to 25 22 to 28 24 to 30Density ISO 1183-1,Method A g/cm3 Target range:0.90 to 0.94 0.97 to 1.03 1.02 to 1.08 1.05 to 1.11 1.05 to 1.13Melt Flow Volume
18、Rate MVR 230/2.16 ISO 1133 cm3 /10 min 4 to 9 5 to 10 5 to 10 5 to 10 14 to 21Multiaxial ImpactStrength at +23 C ISO 6603-2 J Report value (Energy at Maximum Force)Multiaxial ImpactStrength at -30 C ISO 6603-2 J Report value (Energy at Maximum Force)Notched CharpyImpact Strength at+23 CISO 179/1eA k
19、J/m2 45 35 30 20 7Notched CharpyImpact Strength,+23 C after heataging (Note 1)ISO 179/1eA kJ/m (Note 2)Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING
20、 STANDARDS GMW15988 Copyright 2013 General Motors Company All Rights ReservedJune 2013 Page 3 of 6Properties Standard Unit Type A Type B Type C Type D Type ENotched CharpyImpact Strength at-30 CISO 179/1eA kJ/m2 10 10 6 6 4CLTE(Coefficient ofLinear ThermalExpansion) ASTM E831orISO 11359-2Parallel to
21、 Flow 10-6mm/mm/C Report valuePerpendicular toFlow10-6mm/mm/C Report valueMold Shrinkage (forreference only)after 48 h at +23 CISO 294-3/4Parallel to Flow % 0.8 to 1.3 0.25 to 0.5 0.1 to 0.25 0.1 to 0.25 0.1 to 0.25Perpendicular toFlow % 0.7 to 1.4 0.6 to 0.9 0.5 to 0.8 0.6 to 1.0 0.7 to 1.2HDT B, 0
22、.45 MPa,flatwiseISO 75-1ISO 75-2ISO 75-3C 35 60 95 115 135Resistance toScratching Grain:N134, color blackGMW14688-A-10 N L 0.5 0.5 0.7 0.7 0.7Resistance toScratching afterHeat Aging; Grain:N134, color black(Note 3)GMW14688-A-10 N L 0.5 0.5 0.7 0.7 0.7Thermal OxidativeStabilityASTM D3012orISO 4577168
23、 hat +150 CN/A No visible indication of local discoloration and/or brittleness by materialdegradation.Emission Testing ofInterior Materials(Odor, Fogging,Emissions):GMW16853- Odor GMW3205-B3 Rating 6- Fogging GMW3235-B-Y1-T2 mg Requirements see GMW16853- Emissions GMW15634VOC valueSVOC valueg/gg/gRe
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