1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards 40% GLASS FIBER AND MINERAL REINFORCED POLYPROPYLENE EDS-M-4253 ISSUED DATE: 2005. 08. 25 REVISED DATE: 2008. 02. 19 VERSION: 2 EDS-M-425340% GLASS FIBER AND MINERAL REINFORCED POLYPROPYLENE PAGE: 1/3 ISSUED DATE: 200
2、5. 08. 25 REVISED DATE: 2008. 02. 19 VERSION: 2 GM DAEWOO Auto & Technology 1. SCOPE This specification defines general requirements for raw materials of 40% glass fiber and mineral reinforced polypropylene applied to interior or exterior parts of a vehicle. 2. MATERIAL INDICATION Material indicatio
3、n: % PP-(GF+MD)40# Detailed contents shall conform to the indication method of synthetic resin materials for vehicles.(Spec. No: GMW3116) 3. APPLICATION 3.1. Group 2: Compound PP raw material which has excellent heat resistance, rigidity, strength and impact resistance, and use talc and inorganic fi
4、ller to prevent bending. Ex) Cooling Fan, Blower Fan, Assist Step Insert 3.2. Group 3: Compound PP raw material which has excellent heat resistance, rigidity, strength and impact resistance, and use talc and inorganic filler (MICA) to prevent bending. Ex) Speaker Frame 4. REQUIREMENTS 4.1. Mechanica
5、l properties Group 2 Type 1 Group 3 Type 1 Rockwell hardness EDS-T-7517 R Scale 105 105 Tensile strength (kg/cm2) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) 850 620 Elongation (%) EDS-T-7511 Test piece (133mm) Test speed (5mm/min) - - Flexural strength (kg/cm2) EDS-T-7518 Test piece (12712.7
6、6.4mm) Test speed (2.8mm/min) 1,100 1,000 Flexural modulus (kg/cm2) EDS-T-7510 Test piece (12712.76.4mm) Test speed (2.8mm/min) 52,000 61,000 Impact strength, IZOD (kg cm/cm) EDS-T-7514 Test piece (63.512.73.2mm) Room temperature -30 9 8 7 5 EDS-M-425340% GLASS FIBER AND MINERAL REINFORCED POLYPROPY
7、LENE PAGE: 2/3 ISSUED DATE: 2005. 08. 25 REVISED DATE: 2008. 02. 19 VERSION: 2 GM DAEWOO Auto & Technology 4.2. Thermal properties Group 2 Type 1 Group 3 Type 1 Heat deflection temperature () EDS-T-7520 Test piece (12712.76.4mm) 4.6kg/cm2160 160 4.3. General properties Density (g/cm3) EDS-T-7406 1.1
8、90.02 1.210.02 Melt flow index (g/10min) EDS-T-7516 230, 2.16kg 6 6 Glass fiber and mineral content (%) EDS-T-7301 403 403 Note) All the mechanical, thermal and general property values above indicate minimum values except having specified the ranges. 5. TEST PIECE AND TEST 5.1. Test piece Test piece
9、s 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 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.
10、Approved raw materials Division Approved suppliers Approved raw materials Remark Group 2 Type 1 Rhodia Topilene 5203G6 Group 3 Type 1 DAEHA H2402M1 6.2. Approval and quality assurance procedure All raw materials shall be approved and regularly inspected for its quality prior to and during mass produ
11、ction delivery according to approval and quality assurance procedure for chemical raw materials (Spec. No. EDS-M-0102). EDS-M-425340% GLASS FIBER AND MINERAL REINFORCED POLYPROPYLENE PAGE: 3/3 ISSUED DATE: 2005. 08. 25 REVISED DATE: 2008. 02. 19 VERSION: 2 GM DAEWOO Auto & Technology 7. AUTOMOTIVE R
12、ESTRICTED HAZARDOUS SUBSTANCES Materials 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- 4253 - Required property type (clause 4) Material group (clause 3)Material specification n
13、umber 9. RELATED STANDARDS 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 plastics determina
14、tion 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 GMW3059 Reportable and restricted substances for parts GMW3116 Recyclability / recoverability guidelines
