1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards 5% TALC FILLED POLYPROPYLENE EDS-M-4236 ISSUED DATE: 1996. 08. 16 REVISED DATE: 2007. 12. 17 VERSION: 6 EDS-M-42365% TALC FILLED POLYPROPYLENE PAGE: 1/3 ISSUED DATE: 1996. 08. 16 REVISED DATE: 2007. 12. 17 VERSION: 6
2、GM DAEWOO Auto & Technology 1. PURPOSE This specification defines general requirements for raw materials of 5% talc filled polypropylene applied to interior or exterior parts of a vehicle. 2. SCOPE This specification shall be applied to raw materials of 5% talc filled polypropylene used in all passe
3、nger cars by GM DAEWOO Auto & Technology Company(hereinafter referred to as the “GMDAT“). 3. MATERIAL INDICATION Material indication: PP-T5 Detailed contents shall conform to the indication method of synthetic resin materials for vehicles. (Spec. No: GMW3116) 4. APPLICATION 4.1. Group 1: Talc filled
4、 raw materials, which have excellent heat resistance and dimensional stability and improved scratch resistance, which is added a little content of rubber for improvement of impact strength. 4.2. Group 2: Talc filled raw materials, which have excellent heat resistance and dimensional stability and us
5、e high crystalline polypropylene as base especially for the improvement of impact strength, scratch resistance and rigidity. 5. REQUIREMENTS 5.1. Mechanical properties Group 2 Type 1 Rockwell hardness EDS-T-7517 R scale 90 Tensile strength (kg/cm2) EDS-T-7511 Test piece (133mm) Test speed (50mm/min)
6、 280 Elongation (%) EDS-T-7511 Test piece (133mm) Test speed (50mm/min) 50 Flexural strength (kg/cm2) EDS-T-7518 Test piece (12712.76.4mm) Test speed (28mm/min) 350 EDS-M-42365% TALC FILLED POLYPROPYLENE PAGE: 2/3 ISSUED DATE: 1996. 08. 16 REVISED DATE: 2007. 12. 17 VERSION: 6 GM DAEWOO Auto & Techn
7、ology Group 2 Type 1 Flexural modulus (kg/cm2) EDS-T-7510 Test piece (12712.76.4mm) Test speed (28mm/min) 18,000 Impact strength, IZOD (kg cm/cm) EDS-T-7514 Test piece (63.512.73.2mm) Room temperature -30 5.5 - 5.2. Thermal properties Heat deflection Temperature () EDS-T-7520 Test piece (12712.76.4m
8、m) 4.6 kg/cm2125 5.3. General properties Density (g/cm3) EDS-T-7406 0.940.02 Melt flow index EDS-T-7516 230, 2.16kg 20 Talc contents (%) EDS-T-7301 53 Pensile hardness (Non embossing) EDS-T-7523 3B Note) All the mechanical, thermal and general property values above indicate minimum values except hav
9、ing 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 4, they shall be conditioned at 235K and a relative humidity of 50% for 24 hours or more. 6.2. Test Tests shall be performed
10、 at 235K and a relative humidity of 50%. EDS-M-42365% TALC FILLED POLYPROPYLENE PAGE: 3/3 ISSUED DATE: 1996. 08. 16 REVISED DATE: 2007. 12. 17 VERSION: 6 GM DAEWOO Auto & Technology 7. APPROVAL OF RAW MATERIALS 7.1. Approved raw materials Division Approved suppliers Approved raw materials Remarks Gr
11、oup 2 Type 1 Basell, HONAM Petrochemical Corporation, KOMATICS MT5020D, HCA352L, PK1010 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 p
12、rocedure for chemical raw materials (Spec. No. EDS-M-0102). 8. AUTOMOTIVE RESTRICTED 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-4236 - Required
13、property type(clause 5) Material group(clause 4)Material specification number 10. 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
14、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 tes
15、t 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 EDS-T-7523 Test method for the pencil hardness of plastics GMW 3059 Restricted and reportable substance for parts GMW 3116 Recyclability / recoverability guidelines
