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How to Select the Tray in Cold Storage Environment or High Strength in Use
Update time:2015-03-13 Number:
Minus 40 ℃, not this kind of material made of polypropylene pp can't resistance to low temperature.If you need in the cold storage tray on the shelf Had better choose double tray, goods not so heavy can choose fields or sichuan words tray.
Other: used in low temperature environment, practice proves that the modified polypropylene can fully competent.Modified polypropylene as the high temperature of polyethylene and polypropylene incomplete product.His wayward takes note of polyethylene, polypropylene, resistant to low temperature, stable physical properties, resistance to abrasion resistance to fall off.Large chemical companies, such as low temperature cold storage environment generally recommended to use this kind of material.
Can use low-voltage high-density polyethylene production of plastic tray, pure raw material to produce plastic tray can minus 30 ℃ low temperature tolerance.At present, the use of extrusion, blowing molding high-strength blow molding tray at a time, usually will adopt HMWHDPE plastic blow molding, the heavy molecular weight reached around 35 ~ 400000;This kind of plastic raw material with the strong ability to adapt to the ambient temperature, can be stable in - 40 ~ 40 ℃ environment use, is the need to high strength use environment of choice for plastic tray, due to the high strength blow molding tray selection of plastic raw material cost is high, the processing technology difficulty is higher, the service life of the product particularly long, can reach 5 ~ 10 years.Although a purchase when the price will be higher, but the comprehensive cost is low.Need high strength when using, choose this kind of high strength blow molding tray