1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards 20% TALC FILLED HIGH CRYSTALLINE POLYPROPYLENE EDS-M-4243 ISSUED DATE: 1999. 01. 09 REVISED DATE: 2007. 12. 17 VERSION: 4 EDS-M-424320% TALC FILLED HIGH CRYSTALLINE POLYPROPYLENE PAGE: 1/3 ISSUED DATE: 1999. 01. 09 RE
2、VISED DATE: 2007. 12. 17 VERSION: 4 GM DAEWOO Auto & Technology 1. SCOPE This specification specifies the general requirements of the 20% talc filled high crystalline polypropylene used for vehicle interior and exterior parts. 2. MATERIAL Material indication: PP-T20 Detailed contents shall conform t
3、o the indication method of synthetic resin materials for vehicles.(Spec. No: GMW3116) 3. USE 3.1. Type 1 : Talc filled material having good heat resistance and dimensional stability which especially uses as basis high crystalline polypropylene of II(Isotatic Index) 98% or higher for improved scratch
4、 resistance EX) Pillar Trim, Console, Instrument Panel Lower Cover, Glove Box Lid 4. REQUIREMENTS 4.1. Mechanical properties Type 1 Rockwell hardness EDS-T-7517 R Scale 100 Tensile strength (kg/cm2) EDS-T-7511 Test piece (133mm) Test speed (50mm/min) 350 Elongation (%) EDS-T-7511 Test piece (133mm)
5、Test speed (50mm/min) 20 Flexural strength (kg/cm2) EDS-T-7518 Test piece (12712.76.4mm) Test speed (28mm/min) 530 Flexural modulus (kg/cm2) EDS-T-7510 Test piece (12712.76.4mm) Test speed (28mm/min) 30,000 Impact strength, IZOD (kg cm/cm) EDS-T-7514 Test piece (63.512.73.2mm) Room temperature -30 5
6、 2 EDS-M-424320% TALC FILLED HIGH CRYSTALLINE POLYPROPYLENE PAGE: 2/3 ISSUED DATE: 1999. 01. 09 REVISED DATE: 2007. 12. 17 VERSION: 4 GM DAEWOO Auto & Technology 4.2. Thermal properties Type 1 Heat deflection Temperature() EDS-T-7520 Test piece (12712.76.4mm) 4.6kg/cm2135 4.3. General properties Den
7、sity (g/cm3) EDS-T-7406 1.040.02 Melt flow index (g/10min) EDS-T-7516 230, 2.16kg 10 Talc content (%) EDS-T-7301 203 Pensile hardness EDS-T-7523 Non EMBO B Note) All the mechanical, thermal and general property values above indicate minimum values except having the specified ranges. 5. TEST PIECE AN
8、D TEST 5.1. 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. 5.2. Test Tests shall be performed at 235K and a relative humidity of 50%. 6
9、. APPROVED MATERIAL Approved materialDivision Approved vendor Approved material Remarks Type 1 Basell, HONAM Petroleum MT4230S, HCP172S EDS-M-424320% TALC FILLED HIGH CRYSTALLINE POLYPROPYLENE PAGE: 3/3 ISSUED DATE: 1999. 01. 09 REVISED DATE: 2007. 12. 17 VERSION: 4 GM DAEWOO Auto & Technology 6.2.
10、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). 7. AUTOMOTIVE RESTRICTED HAZARDOU
11、S 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-4243-0 Required physical properties type (clause 4 Material group (None) Material specification number 9. REL
12、ATED 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 determination of the
13、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 Roc
14、kwell 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 pensile hardness of plastics GMW 3059 Restricted and reportable substance for parts GMW 3116 Recyclability / recoverability guidelines
