What is the softening point and melting point temperature of ABS plastic?

December 03, 2021

Generally speaking, the softening point of ABS is 101℃, the melting point of general ABS is about 170℃, and the decomposition temperature is 260℃; the adjustable range of injection temperature is relatively large. During injection molding, the general use temperature is 180°C--240°C; because of the presence of rubber components, it absorbs a small amount of water. During production, it needs to be dried. It can be dried at 80-90°C for 1-2hr; at the same time, due to rubber The presence of the ingredients has poor thermal stability, and it is relatively easy to decompose. When injection molding, the raw materials should not stay in the barrel for too long; the melt viscosity is higher than PS, but the gate and runner are general, and the product can be filled; the product is easy to take Static electricity, the surface is easy to absorb dust.

The shrinkage rate is 5‰; the overflow value is 0. 05mm. Here are the parameters. Please take a look: raw material technical data performance item test conditions [status] test method test data data unit basic performance melt flow rate 230℃/3.8kg ASTM- D1238 4. 4 g/10min physical properties specific gravity ASTM-D792 1.
05 g/cm3 Mold shrinkage ASTM-D955 0.4-0.6% Mechanical properties Tensile modulus ASTM-D638 2280 MPa Tensile strength ASTM-D638 32.8 MPa Elongation at break ASTM-D638 25% Bending die Quantity ASTM-D790 2340 MPa Flexural strength ASTM-D790 68.

9 MPa IZOD Notched Impact Strength 23℃ ASTM-D256 347 J/m Thermal Performance Heat Deflection Temperature 1.80Mpa Unannealed, 3.20mm ASTM-D648 85 ℃ Vicat Softening Point ASTM-D1525 101 ℃ Flame Retardant Grade 1.

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