1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards POLYPROPYLENE HOMOPOLYMER EDS-M-4211 ISSUED DATE: 1994. 09. 10 REVISED DATE: 2008. 12. 08 VERSION: 11 EDS-M-4211POLYPROPYLENE HOMOPOLYMER PAGE: 1/4 ISSUED DATE: 1994. 09. 10 REVISED DATE: 2008. 12. 08 VERSION: 11 GM D
2、AEWOO Auto & Technology 1. PURPOSE This specification defines general requirements for raw materials of polypropylene homopolymer interior and exterior parts of a vehicle. 2. SCOPE This specification shall be applied to raw materials of polypropylene homopolymer used in all passenger cars by GM DAEW
3、OO Auto & Technology Company (hereinafter referred to as the “GMDAT“). 3. MATERIAL INDICATION Material indication: PP Detailed contents shall conform to the indication method of synthetic resin materials for vehicles. (Spec. No: GMW3116) 4. APPLICATION 4.1. Group 1: Raw materials for injection moldi
4、ng whose melt flow index is 0.22, which have high rigidity and heat resistance but low impact strength Ex) Sunvisor 4.2. Group 2: Raw materials for injection molding whose melt flow index is 15, which have high rigidity and heat resistance but low impact strength 4.3. Group 3: Raw materials for inje
5、ction molding whose melt flow index is 415, which have high rigidity and heat resistance but low impact strength Ex) Reservoir tank, cap pivot 4.4. Group 4: Raw materials whose melt flow index is 1530, which have high rigidity and heat resistance but low impact strength for injection molding of larg
6、e, complex, and thin products. 5. REQUIREMENTS 5.1. Mechanical properties Group 1 Type 1 Group 3 Type 1 Group 4 Type 1 Rockwell hardness EDS-T-7517 R Scale 100 100 105 Tensile strength (kg/cm2) EDS-T-7511 Test piece (133mm) Test speed (50mm/min) 350 350 350 EDS-M-4211POLYPROPYLENE HOMOPOLYMER PAGE:
7、2/4 ISSUED DATE: 1994. 09. 10 REVISED DATE: 2008. 12. 08 VERSION: 11 GM DAEWOO Auto & Technology Group 1 Type 1 Group 3 Type 1 Group 4 Type 1 Elongation (%) EDS-T-7511 Test piece (133mm) Test speed (50mm/min) 300 300 300 Flexural strength (kg/cm2) EDS-T-7518 Test piece (12712.76.4mm) Test speed (28m
8、m/min) 350 400 400 Flexural modulus (kg/cm2) EDS-T-7510 Test piece (12712.76.4mm) Test speed (28mm/min) 14,000 14,700 16,500 Impact strength, IZOD (kg cm/cm) EDS-T-7514 Test piece (63.512.73.2mm) Room temperature -30 6 - 3.5 - 3.5 - 5.2. Thermal properties Melting point () EDS-T-7519 165 165 165 5.3
9、. General properties Heat deflection Temperature () EDS-T-7520 Test piece (12712.76.4mm) 4.6 kg/cm2105 105 105 Density (g/cm3) EDS-T-7406 0.910.01 0.910.010.910.01Melt flow index (g/10min) EDS-T-7516 230, 2.16kg 0.22 415 1530 Note) All the mechanical, thermal and general property values above indica
10、te minimum values except having the specified ranges. 6. TEST PIECE AND TEST 6.1. Test piece Test pieces shall be prepared with injection molding. Unless otherwise specified in the requirements of clause 5, they shall be conditioned at 235K and a relative humidity of 50% for 24 hours or more. EDS-M-
11、4211POLYPROPYLENE HOMOPOLYMER PAGE: 3/4 ISSUED DATE: 1994. 09. 10 REVISED DATE: 2008. 12. 08 VERSION: 11 GM DAEWOO Auto & Technology 6.2. Test Tests shall be performed at 235K and a relative humidity of 50%. 7. APPROVAL OF RAW MATERIALS 7.1. Approved raw materials Division Approved suppliers Approve
12、d raw materials Remark Group 1 Type 1 PolyMirae co., ltd. HONAM petrochemical corp. HP5008, FO125A Group 3 Type 1 Basell, DAELIM industrial co., ltd. HONAM petrochemical corp., Pomatics H350F, PP136, J150, HP1501 Group 4 Type 1 Basell, DAELIM industrial co., ltd. HONAM petrochemical corp. H380F, PP1
13、40, J170 7.2. Approval and quality 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). 8. AUTOMOTIVE RESTR
14、ICTED HAZARDOUS SUBSTANCES Materials and components of parts must comply with GMW3059. 9. OTHERS 9.1. Coding system Material specification of raw materials shall be indicated in drawings as follows. EDS-M- 4211 - - Additionally required properties - HR: Heat Resistance - WR : Weather Resistance - LR
15、 : Light Resistance - CR : Chemical Resistance Required property type (clause 5) Material group (clause 4)Material specification number EDS-M-4211POLYPROPYLENE HOMOPOLYMER PAGE: 4/4 ISSUED DATE: 1994. 09. 10 REVISED DATE: 2008. 12. 08 VERSION: 11 GM DAEWOO Auto & Technology 10. RELATED STANDARDS EDS
16、-M-0102 Procedures for approval of chemical raw material and quality control 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-7511 Test method for the tensile propert
17、y 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-7519 The test method determining the melting temperature of plastics EDS-T-7520 Test for deflection temperature of plastics under load GMW 3059 Restricted and reportable substance for parts GMW 3116 Recyclability / recoverability guidelines
