Biaxially oriented (oriented) films, after being extruded and blown into thick films, are rapidly cooled to a commercial elastic state, and then stretched longitudinally and
PP is a resin that is easy to age. Because Xulao products are used outdoors, there is a great demand for the anti-aging modification of
After the raw materials are determined, as long as the processing temperature, die gap, film cooling, inflation ratio, traction ratio and other parameters are controlled
Co extrusion method can laminate multiple melt layers together (usually using multiple extruders to feed through the same head). This method uses melt heat to
The adhesive for dry composite packaging has basic requirements for adhesives. There are many types of adhesives used in composite packaging, especially for food and
(1) Electromagnetic speed regulating motors should rotate the speed knob of the speedometer smoothly and slowly during start-up, speed regulation, and shutdown. Sudden speed regulation
The main raw material for PET sheet is random polyethylene terephthalate (APET). (1) The performance of APET with intrinsic viscosity is related to the relative
Bidirectional polypropylene film (BOPP) has the advantages of light weight, transparent, non-toxic, moisture-proof, water resistance, with good thermal stability, chemical stability and electrical properties, so
