GMW GMW15548-2013 Polypropylene Copolymer - UV Stable Mineral Filled Issue 4 English.pdf
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1、 WORLDWIDE ENGINEERING STANDARDS Material Specification GMW15548 Polypropylene Copolymer - UV Stable Mineral Filled Copyright 2013 General Motors Company All Rights Reserved December 2013 Page 1 of 8 1 Scope Note: Nothing in this standard supercedes applicable laws and regulations. Note: In the even
2、t of conflict between the English and domestic language, the English language shall take precedence. 1.1 Material Description. This specification describes the properties of injection moldable, mineral filled polypropylene copolymer, ultraviolet (UV) stable, pellet form material. 1.1.1 Additional Ch
3、aracteristics. Materials certified to this material specification may have additional characteristics, e.g., paintable, elastomer modified, etc. Possible additional characteristics are defined in GMW3013. 1.1.2 Types. The classification into groups is according to the different properties as describ
4、ed in Table 1. 1.2 Symbols. The material abbreviation according to ISO 11469 is GMW15548P-PP/PE-M15. 1.3 Typical Applications. Typical applications include the following: interior trims. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Sta
5、ndards/Specifications. AATCC 23 ISO 178 ISO 1050 ISO 3451-1 ASTM D3012 ISO 179/1eA ISO 1133 ISO 4577 ASTM D3763 ISO 188 ISO 1183-A ISO 6603-1/2 ASTM E831 ISO 294 ISO 1873-2 ISO 11359-2 ISO 75-1/2 ISO 527-1/2 ISO 3167 ISO 11469 2.2 GM Standards/Specifications. GM9302P GMW3221 GMW14162 GMW15634 GMW301
6、3 GMW3232 GMW14444 GMW16172 GMW3059 GMW3235 GMW14688 GMW16853 GMW3205 GMW3417 2.3 Additional References. TMC003 Material Safety Data Sheet guidance documents (available at ). 3 Requirements 3.1 Requirements on Test Specimens. Reference GMW3221. 3.1.1 Material Requirements. Materials approved to this
7、 specification shall meet the requirements of GMW3013, General Requirements for Handling of Technical Terms of Delivery for Plastics. 3.1.2 Requirements on Delivery. Important physical, mechanical and thermal properties that characterize the material are summarized in Table 1 and Table 2. Note: For
8、each product, the requirements to Table 1 and Table 2 shall be documented by Certification Statement according to GMW3013. The color shall be specified on drawings, in material specifications and otherwise. 3.2 Requirements on Test Specimens. Copyright General Motors Company Provided by IHS under li
9、cense with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15548 Copyright 2013 General Motors Company All Rights Reserved December 2013 Page 2 of 8 3.2.1 Unless otherwise specified, injection molding of t
10、est specimens shall be accomplished per ISO 294 with the conditions for injection molding from ISO 1873-2. Test methods and specimen dimensions are also to be in accordance with ISO 1873-2 with the following additions: use ISO 3167, Type 1A, (GMW3221) thickness 4 mm for tensile and flexural properti
11、es. 3.2.2 All tests shall be performed on specimens 40 h minimum after molding and immediately following a conditioning period of 24 h minimum in a controlled atmosphere per GMW3221, Code A, unless otherwise specified. All tests shall be performed on unannealed specimens. In addition, test specified
12、 below or above 23 C 3 C shall be conducted at specific temperature using specimens conditioned at specified temperature for 4 h minimum. 3.2.3 The values specified in Table 1 shall be met by test specimens in natural or black; the values specified in Table 2 shall be met by integrally colored test
13、specimens. For integrally colored grades where other additive systems (e.g., stabilizer) are used, the impact values shall not decrease more than 10% from specified minimum value. 3.3 Chemical Requirements. All parts manufactured from molding compounds shall be resistant to the media they contact at
14、 their place of use. 3.4 Compound Properties. See Table 1 and Table 2. The following are also required for full specification approval. The minimum number of lots per test required is one in natural: Tensile Modulus, Poissons Ratio, and Stress Strain Curve at multiple temperatures, e.g., +23 C, +85
15、C, -30 C; and Multiaxial Impact Curve. See GMW3013 for the test procedures and parameters. 3.5 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 ap
16、plications shall meet the requirements according to GMW14444. Table 1: Compound Properties (Black or Natural) Property Standard Units Types and Requirements T2 T4 T6 Class A Class B Class C Paintable (No UV and No Scratch Additives) ISO Symbol ISO 11469 N/A PP/PE-M15PP/EP-M20PP/PE-M15 Filler Content
17、 ISO 3451-1 Method A (at +600 C) % 15 2 20 2 15 2 Density (Target Range) ISO 1183-A g/cm3 1.0 0.02 1.05 0.02 1.00 0.02 Melt Flow Rate MFR230/2.16 ISO 1133 g/10 minimum 15 to 25 10 to 20 14 to 25 Melt Volume Flow Rate MVR230/2.16 ISO 1133 cm3/10 minimum 20 to 30 10 to 25 16 to 25 Flexural Modulus ISO
18、 178, 2 mm/minute test speed MPa 1200 to 1800 2000 to 2800 2000 to 2600 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 STANDARDS GMW15548 Copyright 2
19、013 General Motors Company All Rights Reserved December 2013 Page 3 of 8 Property Standard Units Types and Requirements T2 T4 T6 Class A Class B Class C Paintable (No UV and No Scratch Additives) Tensile Modulus ISO 527-1 ISO 527-2 Specimen 1A, 1 mm/minute test speed MPa 1400 to 2000 2000 to 3000 21
20、00 to 2700 Tensile Stress at Yield ISO 527-1 ISO 527-2 Specimen 1A, 50 mm/minute test speed MPa 17 24 26 Tensile Stress at Yield after Heat Aging (1000 h 5 h at 100 C 3 C) Note 1 ISO 527-1 ISO 527-2 50 mm/minute test speed % Retention 90 Note 2 90 Note 2 100 Note 2 Multiaxial Impact at 23 C ISO 6603
21、-1/2 Specimen 60 mm diameter x 2 mm, or 60 mm x 2 mm x 2 mm plaque 4.4 m/s speed J at maxi-mum Load 10 10 10 Multiaxial Impact at (minus) -30 C ISO 6603-1/2 Specimen 60 mm diameter x 2 mm, or 60 mm x 2 mm x 2 mm plaque 4.4 m/s speed J at maxi-mum Load 8 6 10 Multiaxial Impact at 23 C ASTM D3763 6.6
22、m/s speed J at maxi- mum Load Report 4 15 Multiaxial Impact at (minus) -30 C ASTM D3763 6.6 m/s speed J at maxi-mum Load Report 4 10 Notched Charpy Impact at 23 C ISO 179/1eA kJ/m2 10 3 4 Notched Charpy Impact at -30 C ISO 179/1eA kJ/m2 2 1.5 2 Mold Shrink, 48 h After Molding, Flow Direction ISO 294
23、, plaque size 101.6 mm x 152 mm x 3.2 mm % Target 1.1 to 1.5 Target 0.8 to 1.2 Target 0.9 to 1.2 Mold Shrink, 48 h After Molding, Cross Flow Direction ISO 294, plaque size 101.6 mm x 152 mm x 3.2 mm % Target 1.2 to 1.6 Target 1.0 to 1.4 Target 0.9 to 1.2 Mold Shrink, 48 h at 80 C After Molding, Flow
24、 Direction ISO 294, plaque size 101.6 mm x 152 mm x 3.2 mm % Target 1.2 to 1.6 Target 1.0 to 1.5 Target 1.0 to1.3 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
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