1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards 30% GLASS FIBER MAT REINFORCED POLYPROPYLENE EDS-M-4257 ISSUED DATE: 2004. 04. 07 REVISED DATE: - VERSION: 1 EDS-M-425730% GLASS FIBER MAT REINFORCED POLYPROPYLENE PAGE: 1/3 ISSUED DATE: 2004. 04. 07 REVISED DATE: - V
2、ERSION: 1 GM DAEWOO Auto & Technology 1. SCOPE This specification defines general requirements for raw materials of 30% glass fiber mat reinforced polypropylene applied to interior and exterior parts of a vehicle. 2. MATERIAL INDICATION Material indication: PP-GM30 Detailed contents shall conform to
3、 the indication method of synthetic resin materials for vehicles. (Spec. No: EDS-M-0101) 3. APPLICATION Glass fiber mat reinforced raw materials that have excellent heat resistance, rigidity, impact strength and dimensional stability and use PP-Homopolymer as base resin. Ex) Engine Under Cover 4. RE
4、QUIREMENTS 4.1. Mechanical properties Type 1 Tensile strength (kg/cm2) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) 800 Elongation (%) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) 3 Flexural strength (kg/cm2) EDS-T-7518 Test piece (80253.2mm) Test speed (1.3mm/min) 1,100 Flexural modulus
5、 (kg/cm2) EDS-T-7510 Test piece (80253.2mm) Test speed (1.3mm/min) 45,000 Impact strength, IZOD (kg cm/cm) EDS-T-7514 Test piece (63.512.76.4mm) Room temperature -30 35 - EDS-M-425730% GLASS FIBER MAT REINFORCED POLYPROPYLENE PAGE: 2/3 ISSUED DATE: 2004. 04. 07 REVISED DATE: - VERSION: 1 GM DAEWOO A
6、uto & Technology 4.2. Thermal properties Type 1 Heat deflection temperature () EDS-T-7520 Test piece (12712.76.4mm) 18.6kg/cm2160 4.3. General properties Density (g/cm3) EDS-T-7406 1.120.02 Glass fiber contents (%) EDS-T-7301 30 Note) All the mechanical, thermal and general property values above ind
7、icate minimum values except having specified ranges. 4.4. Test pieces for the mechanical and thermal properties shall be prepared on parallel direction to the glass fiber mat laminating. 5. TEST PIECE AND TEST 5.1. Test piece Test pieces shall be prepared with compression molding. Unless otherwise s
8、pecified 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 suppliers Approved ra
9、w materials Remarks Type 1 Hanwha L&C Corp. GMT RD30 6.2. 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
10、 (Spec. No. EDS-M-0102). EDS-M-425730% GLASS FIBER MAT REINFORCED POLYPROPYLENE PAGE: 3/3 ISSUED DATE: 2004. 04. 07 REVISED DATE: - VERSION: 1 GM DAEWOO Auto & Technology 7. AUTOMOTIVE RESTRICTED HAZARDOUS SUBSTANCES Materials and components of parts must comply with EDS-A-0101. 8. OTHERS 8.1. Codin
11、g system Material specification of raw materials shall be indicated in drawings as follows. EDS-M-4257 - 0 Required 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 co
12、ding system of automotive plastic parts EDS-M-0102 Procedures for approval of chemical raw material 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 plast
13、ics 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-7518 The method for the flexural strength of plastics EDS-T-7520 Test for deflection temperature of plastics under load
