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POM GC15 含15%玻璃纤维增强

添加时间:2013-05-30  信息来源:http://www.simibc.com/  作者:苏州希普能塑料
泰科纳POM GC15
 
CELCON® GC15 CB34741 IVORY
CELCON® GC15 CD3501 BLACK
CELCON® GC15 CF3500 NATURAL
CELCON® GC15 CY44791 OIL RUBBED BRONZE
 
CELCON GC15 | POM | Glass Reinforced
 
Description
Celcon® GC15 is an acetal copolymer grade utilizing a nominal 15 wt. % fiber glass level to increase stiffness and strength.
 
Chemical abbreviation according to ISO 1043-1: POM
 
Other Processing
Injection Molding
Standard reciprocating screw injection molding machines with a high compression screw (minimum 3:1 and preferably 4:1) and low back pressure (0.35 Mpa/50 PSI) are favored. Using a low compression screw (i.e.- general purpose 2:1 compression ratio) can result in unmelted particles and poor melt homogeneity. Using a high back pressure to make up for a low compression ratio may lead to excessive shear heating and deterioration of the Celcon material.
 
Melt temperature: preferred range 182-199℃ (360-390℉) Melt temperature should never exceed 230℃ (450℉).Mold surface temperature: preferred range 93-121℃ (200-250℉) especially with wall thickness less than 1.5 mm (0.060 in.). May require mold temperature as high as 120℃ (250℉) to reproduce mold surface or to assure minimal molded in stress. Wall thickness greater than 3 mm (1/8 in.) may use a cooler (65℃/150℉) mold surface temperature and wall thickness over 6 mm (1/4 in.) may use a cold mold surface down to 25℃ (80℉). In general, mold surface temperatures lower than 82℃ (180℉) may produce a hazy surface or a surface with flow lines, pits and other included defects.
 
ISO Data Mechanical properties Value Unit Test Standard
Phys Density 1500 kg/m³ ISO 1183
Mold shrinkage - parallel 0.5 % ISO 294-4
Mold shrinkage - normal 0.9 % ISO 294-4
Water absorption (23℃-sat) 0.8 % ISO 62
Humidity absorption (23℃/50%RH) 0.2 % ISO 62
Mech Mechanical properties Value Unit Test Standard
Tensile modulus (1mm/min) 5950 MPa ISO 527-2/1A
Tensile stress at break (5mm/min) 91 MPa ISO 527-2/1A
Tensile strain at break (5mm/min) 2.5 % ISO 527-2/1A
Flexural modulus (23℃) 5850 MPa ISO 178
Charpy notched impact strength @ 23℃ 4.9 kJ/m² ISO 179/1eA
Notched impact strength (Izod) @ 23℃ 5.3 kJ/m² ISO 180/1A
Therm Thermal properties Value Unit Test Standard
Melting temperature (10℃/min) 166 ISO 11357-1,-2,-3
DTUL @ 1.8 MPa 159 ISO 75-1/-2
Coeff.of linear therm. expansion (parallel) 0.46 E-4/℃ ISO 11359-2
Coeff.of linear therm. expansion (normal) 1 E-4/℃ ISO 11359-2
SpecProd Test specimen production Value Unit Test Standard
Processing conditions acc. ISO 9988-2 - Internal
 
Processing
Pre Drying
Drying is not normally required. If material has come in contact with moisture through improper storage or handling or through regrind use, drying may be necessary to prevent splay and odor problems.
 
Drying time (h):3
Drying temperature (℃):80 - 100
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