高刚性POM MC90-HM 泰科纳 pom CELCON 含矿物填料
POM--作为金属的替代材料而广泛应用的工程塑料
POM的自润滑性、耐油性和机械性能平衡良好，从取代以往为金属材质的齿轮、螺钉、轴承等机械零部件开始拓展市场。如今，被广泛应用于从拉链、牙刷柄等身边的生活用品到汽车的门锁、锁闩、安全带锁扣等安全零部件、燃料系统零部件等。全球市占率位列，占整个市场的20%。
主要特点：
CELCON®MC90-HM CF3500 NATURAL
CELCONMC90-HM | POM | Mineral Reinforced
Description
Celcon®MC90-HM is a highly mineral filled and coupled M90 material forproducing very flat and dimensionally stable parts (normalflow).
OtherProcessing
InjectionMolding
Standardreciprocating screw injection molding machines with a highcompression screw (minimum 3:1 and preferably 4:1) and low backpressure (0.35 Mpa/50 PSI) are favored. Using a low compressionscrew (I.E. general purpose 2:1 compression ratio) can result inunmelted particles and poor melt homogeneity. Using a high backpressure to make up for a low compression ratio may lead toexcessive shear heating and deterioration of thematerial.
MeltTemperature: Preferred range 182-199℃ (360-390℉).Melt temperature should never exceed 230℃ (450℉).
MoldSurface Temperature: Preferred range 82-93℃ (180-200℉)especially with wall thickness less than 1.5 mm (0.060 in.). Mayrequire 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.) mayuse a cold mold surface down to 25℃ (80℉).In general, mold surface temperatures lower than82℃ (180℉)may hinder weld line formation and produce a hazy surface or asurface with flow lines, pits and other included defects that canhinder part performance.
ISOData | Mechanicalproperties | Value | Unit | TestStandard |
Phys | Density | 1570 | kg/m³ | ISO1183 |
Moldshrinkage - parallel | 1.5 | % | ISO294-4 | |
Moldshrinkage - normal | 1.3 | |||
Waterabsorption (23℃-sat) | 0.75 | ISO62 | ||
Humidityabsorption (23℃/50%RH) | 0.2 | |||
Mech | Mechanicalproperties | Value | Unit | TestStandard |
Tensilemodulus (1mm/min) | 3550 | MPa | ISO527-2/1A | |
Tensilestress at yield (50mm/min) | 45 | |||
Tensilestrain at yield (50mm/min) | 6 | |||
Flexuralmodulus (23℃) | 3500 | ISO178 | ||
Flexuralstrength (23℃) | 72 | |||
Charpynotched impact strength @ 23℃ | 6.3 | kJ/m² | ISO179/1eA | |
Charpynotched impact strength @ -30℃ | 4.9 | |||
Notchedimpact strength (Izod) @ 23℃ | 6.1 | ISO180/1A | ||
Therm | Thermalproperties | |||
Meltingtemperature (10℃/min) | 165 | ℃ | ISO11357-1,-2,-3 | |
DTUL@ 1.8 MPa | 103 | ISO75-1/-2 | ||
Coeff.oflinear therm. expansion (parallel) | 0.6 | E-4/℃ | ISO11359-2 | |
Coeff.oflinear therm. expansion (normal) | 0.9 | |||
SpecProd | Testspecimen production | |||
Processingconditions acc. ISO | 9988-2 | - | Internal |
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