In the foaming process, especially under the high shear rate of the extrusion process, as the bubbles grow, the surface tension and melt strength of the PET are insufficient, and the bubble walls become thinner, which easily leads to the rupture of the cells. Therefore, improving the melt strength to prevent cell rupture is a prerequisite for PET foam molding.
Advantages of PET Foam MaterialPET foam has good dimensional stability, good sound insulation, and heat insulation properties. Its short-term maximum working temperature can reach 200 ℃, and it can be used for a long time at a high temperature of 120 ℃, which is much higher than polyethylene (PE), p
This article mainly introduces 11 common problems and solutions for the quality of TPE extruded pellets. Including but not limited to long strips larger than normal pellets, pellets linking, centipede, black speckled particles, etc.
Introduction to the extrusion system of the laboratory extruder, including extruder screw, cylinder, hopper, extruder head and mold. We also tell you how to maintenance the lab scale twin screw extruder. Click the bolg to get more information.
This article mainly introduces the reasons for the brittleness of PET plastic sheet, including but not limited to the reasons of PET extruder equipment, mold reasons, equipment technology and other factors. Click on the article link for more information.
This article mainly introduces the production process of PVC compounding, including preparation work, high-mixer, temperature setting, extruder operation process, etc. Hurry up and click on the article link for more detailed information.
This article mainly introduces the effect of TPE granulation method on products. The factors such as temperature, melt pressure, and melt conveying speed are introduced in detail, and the difference between cold cutting and hot cutting is also introduced. Quickly click on the article link to view detailed information.