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Analyze the performance of twin-screw granulator

July 25, 2023

What are the properties of a twin-screw granulator? What does this performance determine?

Twin-screw granulator usually has two kinds of material performance and molding performance, the following we take a look at these two kinds of performance specifically

  • First, Material properties

What is the material properties of twin-screw granulator? See below from the following two points to introduce the twin-screw granulator.

1, twin-screw granulator material properties are mainly expressed as, electrical insulation (especially high-frequency insulation) is excellent, white, hard and brittle, falling to the ground with a metallic ringing sound, light transmittance is second only to plexiglass, coloring resistance, water resistance, good chemical stability. Excellent flame retardant, non-combustible plastic.

2, general strength, rigidity is very good, but brittle, easy to produce stress cracking, not resistant to benzene, gasoline and other organic solvents. Gasoline and other organic solvents. Long-term use of temperature up to 260 degrees in 400 degrees of air or nitrogen to maintain stability. Through the addition of glass fiber or other reinforcing materials modified, the impact strength can be greatly improved, heat resistance and other mechanical properties have also been improved, the density increased to 1.6-1.9, molding shrinkage is small to 0.15-0.25% Suitable for the production of heat-resistant parts. It is suitable for making heat-resistant parts, insulating parts, chemical instruments, optical instruments and other parts. Optical instruments and other parts.

  • Second, molding performance

Of course, there is another is the molding properties, let’s take a look at the molding properties of the two characteristics.

1. Amorphous material, moisture absorption is small, but should be dried after molding.

2. mobility between ABS and PC, fast solidification, small shrinkage, easy to decompose, mold temperature of 100-150 degrees. Mainstream channel taper should be large, the runner should be short. Scope of application Generally can be applied to the manufacture of PPS pipe, PPS sheet and other materials, mostly used in construction, home.

The basic structure form of PPS granulator: 1. twin-screw main machine 2. water pulling strip head 3. conveyor belt 4. granulator 5. material bin

This unit is also suitable for: 1. Enhanced modification: PP/PA/PBT/ABS/AS/PC/POM/PPS/PET, etc. plus glass fiber, carbon fiber 2. Co-mixed gold PC + ABS/PA + ABS/CPE + ABS/PP + EPDM/PA + EPDM/PP + SBS, etc. 3. Filling to change the surname: PE/PP/EVA, etc. + calcium carbonate, talc, titanium dioxide, carbon black and so on. Titanium dioxide, carbon black, etc. 4. Flame retardant masterbatch: PP/PA/ABS/EVA/PBT, etc. + flame retardant, additives 5. Degradable masterbatch: PP/PE/PS, etc. + starch, additives, etc.