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Modification of LLDPE materials and related technical parameters
There are various modification methods for linear low-density polyethylene (LLDPE) materials. The following is a detailed introduction from the aspects of chemical modification, physical modification and other modification methods: Chemical modification Copolymerization modification Principle: During the polymerization reaction, ethylene is copolymerized with other monomers such as α-olefins (such as 1-butene, 1-hexene, 1-octene, etc.). By changing…
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Application and price of small desktop twin screw extruder
Small desktop twin-screw extruders have the characteristics of small size and easy operation. They have a wide range of functional applications in the fields of material research and development, teaching experiments, small batch production, etc., as follows: Material research and development field Polymer blending modification: Different types of polymers can be blended, such as blending…
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Types of laboratory twin-screw extruders and their prices
Types of laboratory twin-screw extruders 1. According to the relative position of the two axes Parallel twin-screw extruder: The axes of the two screws are parallel to each other. It is widely used and suitable for a variety of processes such as polymer blending, modification, and granulation. It can achieve efficient mixing, plasticization, and transportation…
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Common faults in laboratory twin screw extruders
Common faults in laboratory twin-screw extruders include mechanical failures, electrical failures, process failures, etc. The following is a specific analysis: Mechanical failure Screw stuck Cause: It may be that the material accumulates excessively in the screw, or foreign objects such as metal enter the screw, causing the screw to fail to rotate normally. It may…
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Factors affecting the mixing effect of laboratory twin-screw extruder
There are many factors that affect the mixing effect of laboratory twin-screw extruders, mainly including equipment factors, process parameter factors, and material characteristics factors. The following is a detailed introduction: Equipment factors Screw structure Threaded elements: Different shapes, sizes, and combinations of threaded elements have a great influence on the mixing effect. For example, forward…
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Application of laboratory twin-screw extruder in plastic filling modification
Plastic filling modification refers to the method of adding inorganic or organic fillers (such as calcium carbonate, talcum powder, glass fiber, etc.) to plastics to change their mechanical properties, processing properties, usability, or reduce costs. Its main purpose is to improve the strength, hardness, heat resistance, and cost reduction of plastics. The laboratory twin-screw extruder…
