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POM MR90B 标准型,耐热级

添加时间:2013-06-04  信息来源:http://www.simibc.com/  作者:苏州希普能塑料
泰科纳POM MR90B
 
CELCON® MR90B CC34587 GRAY
CELCON® MR90B CD3068 BLACK
CELCON® MR90B CF2001 NATURAL
CELCON® MR90B CG3690 BLUE
CELCON® MR90B CJ3075 GREEN
CELCON® MR90B CL33803 YELLOW
CELCON® MR90B CN32758 ORANGE
CELCON® MR90B CR34589 PINK
CELCON® MR90B CS3067 RED
CELCON® MR90B CV34588 TAN
CELCON® MR90B CY34716 BROWN
 
CELCON MR90B | POM | Specialty
 
Description
Celcon® MR90B is a standard flow specialty media resistant grade developed for improved bleach resistance.
 
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 material.
 
Melt Temperature: Preferred range 182-199℃ (360-390℉). Melt temperature should never exceed 230℃ (450℉).
 
Mold Surface Temperature: Preferred range 82-93℃ (180-200℉) 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 3mm (1/8 in.) may use a cooler (65℃/150℉) mold surface temperature and wall thickness over 6mm (1/4 in.) may use a cold mold surface down to 25℃ (80℉). In general, mold surface temperatures lower than 82℃ (180℉) may hinder weld line formation and produce a hazy surface or a surface with flow lines, pits and other included defects that can hinder part performance.
 
ISO Data Mechanical properties Value Unit Test Standard
Phys Density 1410 kg/m³ ISO 1183
Melt volume rate (MVR) 8 cm³/10min ISO 1133
MVR test temperature 190 ISO 1133
MVR test load 2.16 kg ISO 1133
Mold shrinkage - parallel 2.2 % ISO 294-4
Mold shrinkage - normal 2.2 % ISO 294-4
Mech Mechanical properties Value Unit Test Standard
Tensile modulus (1mm/min) 2800 MPa ISO 527-2/1A
Tensile stress at yield (50mm/min) 65 MPa ISO 527-2/1A
Tensile strain at yield (50mm/min) 11 % ISO 527-2/1A
Flexural modulus (23℃) 2800 MPa ISO 178
Charpy impact strength @ 23℃ 107 kJ/m² ISO 179/1eU
Charpy impact strength @ -30℃ 107 kJ/m² ISO 179/1eU
Charpy notched impact strength @ 23℃ 5.1 kJ/m² ISO 179/1eA
Charpy notched impact strength @ -30℃ 5 kJ/m² ISO 179/1eA
Notched impact strength (Izod) @ 23℃ 6 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 100 ISO 75-1/-2
Coeff.of linear therm. expansion (parallel) 0.89 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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