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POM M25 高分子量,韧性良好

添加时间:2013-05-31  信息来源:http://www.simibc.com/  作者:苏州希普能塑料
泰科纳POM M25
 
CELCON® M25 CC34031 GRAY
CELCON® M25 CD3068 BLACK
CELCON® M25 CD7068 BLACK
CELCON® M25 CE33391 HOT PINK
CELCON® M25 CE7430 PURPLE
CELCON® M25 CF2001 NATURAL
CELCON® M25 CF2888 NATURAL
CELCON® M25 CG33836 BLUE
CELCON® M25 CG34095 BLUE
CELCON® M25 CG34096 BLUE
CELCON® M25 CG34542 BLUE
CELCON® M25 CG3671 BLUE
CELCON® M25 CH33619 TURQUOISE
CELCON® M25 CJ33269 GREEN
CELCON® M25 CJ33826 GREEN
CELCON® M25 CJ34045 GREEN
CELCON® M25 CL33247 YELLOW
CELCON® M25 CL33402 YELLOW
CELCON® M25 CL33402E YELLOW
CELCON® M25 CL33520 YELLOW
CELCON® M25 CN33827 RUST
CELCON® M25 CN7540 ORANGE
CELCON® M25 CN7540E ORANGE
CELCON® M25 CR33345 PINK
CELCON® M25 CS33273 RED
CELCON® M25 CV33822 TAN
CELCON® M25 CY33828 BROWN
CELCON® M25 H CF2001 NATURAL
 
CELCON M25 | POM | Unfilled
 
Description
Celcon® acetal copolymer grade M25 is a high molecular weight, higher toughness and impact resistance grade primarily used for extrusion and selected injection molding applications.
 
Chemical abbreviation according to ISO 1043-1: POM
 
Please also see Hostaform® C 2521.
 
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.
 
Film Extrusion
Standard extruders with a length to diameter ratio of at least 20:1 are recommended. The screw should be a high compression ratio of at least 3:1 and preferably 4:1 to assure good melting and melt homogeneity. The design should be approximately 35% each for feed and metering sections with the remaining 30% as the transition zone.
 
Melt temperature:160-220℃ (320-430℉)
 
Other Extrusion
Standard extruders with a length to diameter ratio of at least 20:1 are recommended. The screw should be a high compression ratio of at least 3:1 and preferably 4:1 to assure good melting and uniform melt homogeneity. The design should be approximately 35% each for the feed and metering sections with the remaining 30% as transition zone.
 
Melt temperature:180-220℃ (355-430℉)
 
Profile Extrusion
Standard extruders with a length to diameter ratio of at least 20:1 are recommended. The screw should be a high compression ratio of at least 3:1 and preferably 4:1 to assure good melting and melt homogeneity. The design should be approximately 35% each for feed and metering sections with the remaining 30% as the transition zone.
 
Melt temperature:180-220℃ (360-430℉).
 
Sheet Extrusion
Standard extruders with a length to diameter ratio of at least 20:1 are recommended. The screw should be a high compression ratio (at least 3:1 and preferably 4:1) to assure good melting and uniform melt homogeneity. The screw design should be approximately 35% each for the feed and metering sections with the remaining 30% as the transition zone.
 
Melt temperature:180-190℃ (355-375℉).
 
Blow Molding
Consult product information services.
Calandering
Consult product information services.
Compression Molding
Consult product information services.
 
ISO Data Mechanical properties Value Unit Test Standard
Phys Density 1410 kg/m³ ISO 1183
Melt volume rate (MVR) 2.2 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 1.8 % ISO 294-4
Water absorption (23℃-sat) 0.75 % ISO 62
Humidity absorption (23℃/50%RH) 0.2 % ISO 62
Mech Mechanical properties Value Unit Test Standard
Tensile modulus (1mm/min) 2460 MPa ISO 527-2/1A
Tensile stress at yield (50mm/min) 63 MPa ISO 527-2/1A
Tensile strain at yield (50mm/min) 12 % ISO 527-2/1A
Tensile creep modulus (1h) 2100 MPa ISO 899-1
Tensile creep modulus (1000h) 1100 MPa ISO 899-1
Flexural modulus (23℃) 2430 MPa ISO 178
Charpy impact strength @ 23℃ 250.0P kJ/m² ISO 179/1eU
Charpy impact strength @ -30℃ 190 kJ/m² ISO 179/1eU
Charpy notched impact strength @ 23℃ 9.1 kJ/m² ISO 179/1eA
Notched impact strength (Izod) @ 23℃ 8.3 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 94 ISO 75-1/-2
Coeff.of linear therm. expansion (parallel) 1.2 E-4/℃ ISO 11359-2
Coeff.of linear therm. expansion (normal) 1.2 E-4/℃ ISO 11359-2
SpecProd Test specimen production Value Unit Test Standard
Processing conditions acc. ISO 9988-2 - Internal
Rheo Rheological Calculation properties Value Unit Test Standard
Density of melt 1200 kg/m³ Internal
Thermal conductivity of melt 0.155 W/(m K) Internal
Specific heat capacity of melt 2210 J/(kg K) Internal
Ejection temperature 165 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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