1、WORLDWIDEENGINEERINGSTANDARDSMaterial Specification GMW16783Polypropylene - Unfilled and Talc Filled -Deca-BDE Free Flame Retardant Copyright 2012 General Motors Company All Rights ReservedOctober 2012 Originating Department: North American Engineering Standards Page 1 of 51 Scope1.1 Material Descri
2、ption. This specification covers the properties of flame retardant, DecabromodiphenylEther (Deca-BDE) free, talc filled polypropylene. It covers injection molding types.1.2 Symbols. The material abbreviation according to ISO 11469 is shown in Table 1.1.3 Typical Applications. Typical applications in
3、clude battery covers.1.4 Remarks. The classification into groups is according to the different ranges of talc content.2 ReferencesNote: Only the latest approved standards are applicable unless otherwise specified.2.1 External Standards/Specifications.ISO 75-1 ISO 179/1eU ISO 1183 ISO 4577ISO 75-2 IS
4、O 188 ISO 1210 ISO 11359-1,-2ISO 75-3 ISO 294-4 ISO 1873-2 ISO 11469ISO 178 ISO 527-1/2 ISO 3167 UL 94ISO 179/1eA ISO 1133 ISO 3451-12.2 GM Standards/Specifications.GMW3013 GMW3059 GMW32212.3 Additional References.TMC003 Material Safety Data Sheet guidance documents (available at ).3 RequirementsMat
5、erials approved to this specification shall meet the requirements 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.Note
6、: For each product, the requirements to Table 1 shall be documented by Certification Statement accordingto GMW3013. The color shall be specified on drawings, in material specifications and otherwise.3.2 Requirements on Test Specimens.3.2.1 Unless otherwise specified, injection molding of test specim
7、ens shall be accomplished per ISO 294-4with the conditions for injection molding from ISO 1873-2. Test methods and specimen dimensions are also tobe in accordance with ISO 1873-2 with the following additions:x Use ISO 3167 Type A, thickness 4 mm, for tensile and flexural properties.3.2.2 All tests s
8、hall be performed on specimens 40 h minimum after molding 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.3.2.3 The values specified in Table 1, shall be met
9、 by test specimens in natural or black. For integrally coloredgrades where other additive systems (e.g., stabilizer) are used, the impact values shall not decrease morethan 10% from the specified minimum value.Copyright General Motors Company Provided by IHS under license with General Motors Company
10、Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16783 Copyright 2012 General Motors Company All Rights ReservedOctober 2012 Page 2 of 53.3 Chemical Requirements. All parts manufactured from molding compounds shall be resistant
11、to the mediathey contact at their place of use.3.4 Compound Properties. See Table 1. The following are also required for full specification approval. Theminimum number of lots per test required is one in natural.Tensile Modulus:x Poissons Ratio.x Stress Strain Curve at + 23 C, + 85 C, and 30 C.3.5 P
12、erformance Requirements. Performance requirements, e.g., flammability, shall be specified on partdrawings or in component specifications.Table 1: Compound Properties (Black or Natural)Property Test Method Units Nominal Talc Filler Percentage0% 10% 20% 30%ISO Symbol ISO 11469 PP-FR(17)PP-TD10-FR(17)P
13、P-TD20-FR(17)PP-TD30-FR(17)Ash ISO 3451-1, MethodA, at +600 C % by mass N/A Target Range9 to 13 Target Range19 to 23 Target Range29 to 33Density ISO 1183, Method A g/cm Target Range1.25 0.05 Target Range1.30 0.05 Target Range1.35 0.05 Target Range1.40 0.05Melt Flow RateMFR230/2.16 ISO 1133g/10minute
14、sTarget Range2 to 10Target Range2 to 10Target Range2 to 10Target Range2 to 10Melt Volume FlowRate MVR230/2.16 ISO 1133cm/10minutes Report ResultsReportResultsReportResultsReportResultsTensile ModulusISO 527-1/2,specimen 1A,1 mm/minute testspeedMPa 1300 1600 2100 2300Flexural ModulusISO 178,2 mm/minu
15、te testspeedMPa 1200 1600 2100 2500Tensile Strength atyieldISO 527-1/2,specimen 1A,5 mm/minute testspeedMPa 18 20 20 20Tensile Strength atyield after heataging Note 1ISO 527-1/2,specimen 1A,5 mm/minute testspeed%Retention 85Notched CharpyImpact Strength at+23 CISO 179/1eA kJ/m 2 1.8 1.2 1Copyright G
16、eneral Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16783 Copyright 2012 General Motors Company All Rights ReservedOctober 2012 Page 3 of 5Property Test
17、 Method Units Nominal Talc Filler Percentage0% 10% 20% 30%Un-notched CharpyImpact Strength at+23 CISO 179/1eU kJ/m 40 20 15 10Notched CharpyImpact Strength at+23 C after heatagingNote 2ISO 179/1eA %Retention 75Heat DeflectionTemp., 1.8 MPaMethod AISO 75-1, ISO 75-2,ISO 75-3, flatwise C 55 60 65 70Mo
18、ld Shrink, 48 hafter molding -longitudinalISO 294-4Plaques size:101 152 3.2 mm% Target Range1.2 to 1.8 Target Range1.1 to 1.7 Target Range1.0 to1.5 Target Range0.9 to 1.3Mold Shrink, 48 hafter molding transverseISO 294-4Plaques size:10 152 3.2 mm% Target Range1.2 to 2.0 Target Range1.2 to 1.8 Target
19、 Range1.0 to 1.6 Target Range0. 8 to 1.5CLTE, longitudinal,-30 C to + 30 C ISO 11359-1, -2 10-6 1/K Target Ranged 140Target Ranged 130Target Ranged 120Target Ranged 110CLTE, transverse,-30 C to +30 C ISO 11359-1,-2 10-6 1/K Target Ranged 180Target Ranged 160Target Ranged 150Target Ranged 140Flammabi
20、lityISO 1210/UL-941.50 mm3.00 mmN/A V-0V-0Oxidation Stability336 h 3 h at+ 150 C 3 C inan air circulatingovenISO 4577 No visible indication of local discoloration and/or brittleness bymaterial degradationNote 1: Heat aging for 1000 h 5 h at + 102 C 3 C according to ISO 188 Method A (air oven method)
21、.Note 2: Impact specimens for Charpy testing shall be notched prior to aging. Aged specimens shall have retention t 75% relative tounaged specimens tested concurrently.N/A: Not applicable.4 Manufacturing ProcessNot applicable.5 Rules and Regulations5.1 Legal Regulations. All materials must satisfy a
22、pplicable laws, rules, regulations and recommendationsvalid in the country of usage.5.2 Language. In the event of conflict between the English and domestic language, the English language shalltake precedence.Copyright General Motors Company Provided by IHS under license with General Motors CompanyNo
23、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16783 Copyright 2012 General Motors Company All Rights ReservedOctober 2012 Page 4 of 55.3 Inspection and Rejection. Samples of components or materials released to a GM material spe
24、cificationshall be tested for conformity with the requirements of this material specification and approved by theresponsible Engineering department prior to commencement of delivery of bulk supplies.A new approval must be received for any changes, e.g., properties, manufacturing process, location of
25、manufacture, etc. If not otherwise agreed, all testing and documentation normally required for initial releasemust be completed.It is the responsibility of the supplier to inform the customer in a timely manner, without solicitation, and toinclude documentation of all modifications of materials and/
26、or processes and to apply for a new release.If not otherwise agreed, all release tests shall be repeated and documented by the supplier prior tocommencement of delivery of non-conforming bulk supplies. In individual cases, a shorter test can be agreedto between the responsible Engineering department
27、 and the supplier.5.4 Material Safety Data Sheets/Safety Data Sheets (MSDS/SDS). For new product submissions, or when achange in chemical composition of an existing product has occurred, a complete copy of the Material SafetyData Sheet/Safety Data Sheet must be submitted in compliance with the Globa
28、lly Harmonized System ofClassification and Labeling of Chemicals (GHS) requirements or other country-specific MSDS/SDSrequirements. In addition, product MSDS/SDS submissions must be in compliance with specific countryGeneral Motors TMC003 Material Safety Data Sheet/Safety Data Sheet guidance documen
29、ts where available.5.5 All materials supplied to this standard must comply with the requirements of GMW3059, Restricted andReportable Substances for Parts.6 Approved SourcesMaterials supplied to this specification must be approved by General Motors.A list of approved materials can be found in (MATSP
30、C). This GM Material File is provided to third parties toreduce redundant testing of materials. If approved material already listed is used, the part supplier can use GMMaterial File reference for Production Part Approval Process (PPAP) material approval. If the decision is madeto use a not yet appr
31、oved material, contact the Plastics Global Subsystem Leadership Team for detail on theapproval process. The material approval process must be completed prior to PPAP start date of the partsupplied to General Motors.7 Notes7.1 Glossary.MATSPC: Global repository of GM approved materials for correspond
32、ing GM engineering standards.7.2 Acronyms, Abbreviations, and Symbols.CLTE Coefficient of Linear Thermal ExpansionDeca-BDE Decabromodiphenyl EtherFR Flame RetardantGHS Globally Harmonized System of Classification and Labeling of ChemicalsMFR Melt Flow RateMSDS Material Safety Data SheetMVR Melt Volu
33、me RatePP PolypropylenePPAP Production Part Approval ProcessSDS Safety Data SheetT TalcUL Underwriters LaboratoriesCopyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE
34、 ENGINEERING STANDARDS GMW16783 Copyright 2012 General Motors Company All Rights ReservedOctober 2012 Page 5 of 58 Coding SystemThis standard shall be referenced in other documents, drawings, etc., as follows:Material per GMW16783P-PP-TDYY-FR (17)Where:PP PolypropyleneT TalcYY Percentage of talc fil
35、lerFR (17) Flame Retardant Aromatic Brominated Compounds (excluding brominated diphenyl ether andbiphenyls) in combination with antimony compounds.9 Release and RevisionsThis standard was originated in March 2012. It was first approved by the Plastics Global SubsystemLeadership Team in October 2012. It was first published in October 2012.Issue Publication Date Description (Organization)1 OCT 2012 Initial publication.Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
