1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards 20% GLASS FIBER REINFORCED POLYPROPYLENE EDS-M-4251 ISSUED DATE: 1994. 09. 10 REVISED DATE: 2009. 09. 02 VERSION: 8 20% GLASS FIBER REINFORCED POLYPROPYLENE EDS-M-4251PAGE: 1/4 ISSUED DATE: 1994. 09. 10 REVISED DATE:
2、2009. 09. 02 VERSION: 7 GM DAEWOO Auto & Technology 1. SCOPE This specification defines general requirements for raw materials of 20% glass fiber reinforced polypropylene applied to interior and exterior parts of a vehicle. 2. MATERIAL INDICATION Material indication: PP-GF20 Detailed contents shall
3、conform to the indication method of synthetic resin materials for vehicles (Spec. No: GMW3116). 3. APPLICATION 3.1. Group 1: Glass fiber reinforced raw materials that have especially excellent heat resistance and dimensional stability and use high crystalline PP as the base. 3.2. Group 2: Glass fibe
4、r reinforced raw materials that have especially excellent heat resistance and dimensional stability and use PP-copolymer as the base. 3.3. Group 3: Glass fiber reinforced raw materials which have especially excellent heat resistance and dimensional stability and use PP-homopolymer as the base. Ex) I
5、nstrument panel core 3.4. Group 3 Type 1 R(Recyclate): Recyclate is the recompounded which is made by compounding with virgin resins and recycled content such as post-consumer and/or postindustrial materials. Virgin material may be substituted for this recyclate provided parts made from virgin mater
6、ial have been approved by the Production Part Approval Process (PPAP). Recyclate material is indicated by code letter “R“ in the virgin material after material specification number (suffix). Cf. Recyclate should not be applied to appearance parts for interior and exterior except appropriate part per
7、formance validation and specific validation, and basically used as for Black MIC (Molded in Color) parts. 4. REQUIREMENTS 4.1. Mechanical properties Group 2 Type 1 Group 3 Type 1 Rockwell hardness EDS-T-7517 R Scale 100 105 20% GLASS FIBER REINFORCED POLYPROPYLENE EDS-M-4251PAGE: 2/4 ISSUED DATE: 19
8、94. 09. 10 REVISED DATE: 2009. 09. 02 VERSION: 7 GM DAEWOO Auto & Technology Group 2 Type 1 Group 3 Type 1 Tensile strength (kg/cm2) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) 430 700 Elongation (%) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) 5 5 Flexural strength (kg/cm2) EDS-T-7518
9、Test piece (12712.76.4mm) Test speed (2.8mm/min) 600 900 Flexural modulus (kg/cm2) EDS-T-7510 Test piece (12712.76.4mm) Test speed (2.8mm/min) 24,500 40,000 Impact strength, IZOD (kg cm/cm) EDS-T-7514 Test piece (63.512.73.2mm) Room temperature -30 10 - 8 6 4.2. Thermal properties Heat deflection te
10、mperature () EDS-T-7520 Test piece (12712.76.4mm) 4.6 kg/cm2130 155 4.3. General properties Density (g/cm3) EDS-T-7406 1.10 1.10 Melt flow index (g/10min) EDS-T-7516 230, 2.16kg 10 10 Glass fiber contents (%) EDS-T-7301 20 20 Note) All the mechanical, thermal and general property values above indica
11、te minimum values except having the specified ranges. 5. TEST PIECE AND TEST 20% GLASS FIBER REINFORCED POLYPROPYLENE EDS-M-4251PAGE: 3/4 ISSUED DATE: 1994. 09. 10 REVISED DATE: 2009. 09. 02 VERSION: 7 GM DAEWOO Auto & Technology 5.1. Test piece Test pieces shall be prepared with injection molding.
12、Unless otherwise specified in the requirements of clause 4, they shall be conditioned at 235K and a relative humidity of 50% for 24 hours or more. 5.2. Test Tests shall be performed at 235K and a relative humidity of 50%. 6. APPROVAL OF RAW MATERIALS 6.1. Approved raw materials Division Approved sup
13、pliers Approved raw materials Remarks Group 2 Type 1 LG Chemical, Basell HI2202, SF4220 Group 3 Type 1 KUMHO Petrochemical, Basell, HONAM Petrochemical, SAMSUNG Total Petrochemicals co., ltd.P6-20GF, SF4210, G152H, GH62 Group 3 Type 1 R SAMIL Polymer co., ltd. XT-200 R : Recyclate6.2. Approval and q
14、uality assurance procedure All raw materials shall be approved and regularly inspected for its quality prior to and during mass production delivery according to approval and quality assurance procedure for chemical raw materials(Spec. No. EDS-M-0102). 7. AUTOMOTIVE RESTRICTED HAZARDOUS SUBSTANCES Ma
15、terials and components of parts must comply with GMW3059. 8. OTHERS 8.1. Coding system Material specification of raw materials shall be indicated in drawings as follows. EDS-M-4251 - R - Additionally required properties (None) Recyclate material indication (If it is necessary) Requirement property t
16、ype (clause 4) Material group (clause 3) Material specification number 20% GLASS FIBER REINFORCED POLYPROPYLENE EDS-M-4251PAGE: 4/4 ISSUED DATE: 1994. 09. 10 REVISED DATE: 2009. 09. 02 VERSION: 7 GM DAEWOO Auto & Technology 9. RELATED STANDARDS EDS-M-0102 Procedures for approval of chemical raw mate
17、rial and quality control EDS-T-7301 Test method for determining the residue on ignition (ash) of polymeric materials EDS-T-7406 Determination of volume and density of elastomers EDS-T-7510 Testing of plastics determination of the modulus of elasticity by tensile, compression and flexural test EDS-T-
18、7511 Test method for the tensile property of plastics EDS-T-7514 Test method for determining the flexural strength of plastics EDS-T-7516 The test method for the melt flow index of thermoplastics EDS-T-7517 The test method for Rockwell hardness of plastics EDS-T-7518 The method for the flexural strength of plastics EDS-T-7520 Test for deflection temperature of plastics under load GMW3059 Reportable and restricted substances for parts GMW3116 Recyclability/recoverability guidelines
