PA66 ST801 toughening level specification level: Injection Molding Uses: suitable for impact resistance of the products Remarks: Features: excellent impact resistance. PA properties: crystalline thermoplastic plastic, with a clear melting point, Nylon6 Tm of 220-230 ℃, Nylon66 was 260-270 ℃, Nylon with water-based and therefore their absorption, to be dried before molding, high temperature drying the nylon grain discoloration.
Properties
Translucent or opaque white crystalline polymers, with plasticity, density 1.15g/cm3. Melting point of 252 ℃. Embrittlement temperature of -30 ℃. Thermal decomposition temperature greater than 350 ℃. Continuous heat 80-120 ℃, equilibrium water absorption 2.5% to acid, alkali, aqueous solutions of most inorganic salts, alkyl halides, hydrocarbons, esters, ketones, such as corrosion, but soluble in phenol, formic acid and other polar solvents with excellent wear resistance, self-lubricating resistance, high mechanical strength, but the larger water absorption, and thus dimensional stability is poor.
Application
Widely used in the manufacture machinery, automobile, chemical, and electrical equipment parts such as gears, rollers, pulleys, rollers, pump the impeller, fan blades, high-pressure seal around, valve seats, gaskets, bushings, handles a variety of , supporting frames, wire cladding, etc. can also be made of thin films used as packaging materials. In addition, also for the production of medical equipment, sporting goods, daily necessities and so on. Modeling process
Drying: If the material is sealed before processing, then there is no need to dry. However, if the storage container is opened, it is recommended that at 85 ℃ hot air drying. If the humidity is greater than 0.2%, also need to be 105 ℃, 12 hours of vacuum drying.
Melting temperature: 260 ~ 290 ℃. Of glass additive products 275 ~ 280 ℃. Melting temperature should be avoided above 300 ℃. Mold temperature: recommended 80 ℃. Mold temperature will affect the degree of crystallinity, and degree of crystallinity will affect the physical properties for thin-walled plastic parts, if the die temperature below 40 ℃, the plastic parts of the crystallinity will change over time, in order to maintain the geometric stability of the plastic parts, the need for annealing.
Injection pressure: usually 750 ~ 1250bar, depending on material and product design.
Injection speed: high speed (for enhanced material should be slightly lower).
Runners and gates: As of PA66 coagulation time is very short, so the gate is important. Gate aperture not less than 0.5 * t (where t is the thickness of plastic parts). If you use the hot runner, gate size should be less than smaller using conventional flow channel, as hot runner can help prevent premature solidification of materials. If sneak into the gate, the gate should be the minimum diameter of 0.75mm.
Chemical Physics
PA66 polyamide material has a higher melting point and it is a semi-crystalline - crystalline materials. PA66 at high temperature to maintain a strong strength and stiffness. PA66 still has moisture in the molding, which mainly depends on the degree on material composition, thickness, and environmental conditions in the product design, we must consider the impact of moisture on the stability of the geometric order to improve the mechanical properties of PA66, often adding a variety of modifiers. Glass is the most common additives, and sometimes also added to improve impact resistance synthetic rubber, such as EPDM and SBR, etc.. PA66 low viscosity, so the flow is very good (but not as good as PA6). The nature of the components can be used to process thin and it's Viscosity is very sensitive to temperature change. PA66 shrinkage of 1% to 2%, and glass fiber additives can reduce the shrinkage to 0.2% to 1% shrinkage in the flow direction and perpendicular to the direction and flow direction The differences are larger. PA66 with alcohol-resistant to many solvents, but the acid chloride and other agents of the resistance is weak.
Properties
Translucent or opaque white crystalline polymers, with plasticity, density 1.15g/cm3. Melting point of 252 ℃. Embrittlement temperature of -30 ℃. Thermal decomposition temperature greater than 350 ℃. Continuous heat 80-120 ℃, equilibrium water absorption 2.5% to acid, alkali, aqueous solutions of most inorganic salts, alkyl halides, hydrocarbons, esters, ketones, such as corrosion, but soluble in phenol, formic acid and other polar solvents with excellent wear resistance, self-lubricating resistance, high mechanical strength, but the larger water absorption, and thus dimensional stability is poor.
Application
Widely used in the manufacture machinery, automobile, chemical, and electrical equipment parts such as gears, rollers, pulleys, rollers, pump the impeller, fan blades, high-pressure seal around, valve seats, gaskets, bushings, handles a variety of , supporting frames, wire cladding, etc. can also be made of thin films used as packaging materials. In addition, also for the production of medical equipment, sporting goods, daily necessities and so on. Modeling process
Drying: If the material is sealed before processing, then there is no need to dry. However, if the storage container is opened, it is recommended that at 85 ℃ hot air drying. If the humidity is greater than 0.2%, also need to be 105 ℃, 12 hours of vacuum drying.
Melting temperature: 260 ~ 290 ℃. Of glass additive products 275 ~ 280 ℃. Melting temperature should be avoided above 300 ℃. Mold temperature: recommended 80 ℃. Mold temperature will affect the degree of crystallinity, and degree of crystallinity will affect the physical properties for thin-walled plastic parts, if the die temperature below 40 ℃, the plastic parts of the crystallinity will change over time, in order to maintain the geometric stability of the plastic parts, the need for annealing.
Injection pressure: usually 750 ~ 1250bar, depending on material and product design.
Injection speed: high speed (for enhanced material should be slightly lower).
Runners and gates: As of PA66 coagulation time is very short, so the gate is important. Gate aperture not less than 0.5 * t (where t is the thickness of plastic parts). If you use the hot runner, gate size should be less than smaller using conventional flow channel, as hot runner can help prevent premature solidification of materials. If sneak into the gate, the gate should be the minimum diameter of 0.75mm.
Chemical Physics
PA66 polyamide material has a higher melting point and it is a semi-crystalline - crystalline materials. PA66 at high temperature to maintain a strong strength and stiffness. PA66 still has moisture in the molding, which mainly depends on the degree on material composition, thickness, and environmental conditions in the product design, we must consider the impact of moisture on the stability of the geometric order to improve the mechanical properties of PA66, often adding a variety of modifiers. Glass is the most common additives, and sometimes also added to improve impact resistance synthetic rubber, such as EPDM and SBR, etc.. PA66 low viscosity, so the flow is very good (but not as good as PA6). The nature of the components can be used to process thin and it's Viscosity is very sensitive to temperature change. PA66 shrinkage of 1% to 2%, and glass fiber additives can reduce the shrinkage to 0.2% to 1% shrinkage in the flow direction and perpendicular to the direction and flow direction The differences are larger. PA66 with alcohol-resistant to many solvents, but the acid chloride and other agents of the resistance is weak.
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