1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology. Standards POLYPROPYLENE/POLYETHYLENE BLEND EDS-M-4601 ISSUED DATE: 1994. 09. 10 REVISED DATE: 2003. 05. 22 VERSION: 3 EDS-M-4601POLYPROPYLENE/POLYETHYLENE BLEND PAGE: 1/3 ISSUED DATE: 1994. 09. 10 REVISED DATE: 2003. 05. 22 VE
2、RSION: 3 GM DAEWOO Auto & Technology 1. SCOPE This specification defines general requirements for raw materials of polypropylene/polyethylene blend applied to interior or exterior parts of a vehicle. 2. MATERIAL INDICATION Material indication: PP+PE Detailed contents shall conform to the indication
3、method of synthetic resin materials for vehicles.(Spec. No: EDS-M-0101) 3. APPLICATION Polypropylene and polyethylene blend raw materials for blow molding that take advantage of blow molding workability of polyethylene and rigidity of polypropylene. Ex) Armrest 4. REQUIREMENTS 4.1. Mechanical proper
4、ties Type 1 Rockwell hardness EDS-T-7517 R Scale 80 Tensile strength (kg/cm2)EDS-T-7511 Test piece (133mm) Test speed (50mm/min) 280 Elongation (%) EDS-T-7511 Test piece (133mm) Test speed (50mm/min) 500 Flexural strength (kg/cm2)EDS-T-7518 Test piece (12712.76.4mm) Test speed (28mm/min) - Flexural
5、modulus (kg/cm2)EDS-T-7510 Test piece (12712.76.4mm) Test speed (28mm/min) 13,000 Impact strength, IZOD (kg cm/cm) EDS-T-7514 Test piece (63.512.73.2mm) Room temperature -30 NB 3.5 EDS-M-4601POLYPROPYLENE/POLYETHYLENE BLEND PAGE: 2/3 ISSUED DATE: 1994. 09. 10 REVISED DATE: 2003. 05. 22 VERSION: 3 GM
6、 DAEWOO Auto & Technology 4.2. Thermal properties Type 1 Heat deflection temperature() EDS-T-7520 Test piece (12712.76.4mm) 4.6kg/cm290 4.3. General properties Density (g/cm3) EDS-T-7406 0.970.01 Melt flow index (g/10min) EDS-T-7516 230, 2.16kg 0.5 Note) All the mechanical, thermal and general prope
7、rty values above indicate minimum values except having specified the ranges. 5. TEST PIECE AND TEST 5.1. Test piece Test pieces shall be prepared with injection molding. Unless otherwise specified in the requirements of clause 4, they shall be conditioned at 235K and a relative humidity of 50% for 2
8、4 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 suppliers Approved raw materials Remark Type 1 HONAM petrochemical co., ltd. B-313 6.2. Approval and quality assurance procedure All
9、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). EDS-M-4601POLYPROPYLENE/POLYETHYLENE BLEND PAGE: 3/3 ISSUED DATE: 1994. 09. 10
10、 REVISED DATE: 2003. 05. 22 VERSION: 3 GM DAEWOO Auto & Technology 7. AUTOMOTIVE RESTRICTED HAZARDOUS SUBSTANCES Materials and components of parts must comply with EDS-A-0101. 8. OTHERS 8.1. Coding system Material specification of raw materials shall be indicated in drawings as follows. EDS-M-4601 -
11、 0 Requirement property type (clause 4) Material group (none) Material specification number 9. RELATED STANDARDS EDS-A-0101 Automotive restricted hazardous substances for parts EDS-M-0101 Material coding system of automotive plastic parts EDS-M-0102 Procedures for approval of chemical raw material a
12、nd 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 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
