Preparation method of packing belt
A technology of packing tape and preparation process, which is applied in the directions of packaging, transportation and packaging, flexible slender elements, etc. The effect of not easy to break
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Embodiment 1
[0015] Get raw material polyolefin filler masterbatch 30kg and polypropylene resin 100kg.
[0016] For plasticizing, melt the two components at 280°C, and then gradually lower the temperature to 210°C. Extrude using plastic extrusion equipment. In the implementation process, a plastic extruder can be used for the plasticizing extrusion process. The plasticizing extruder includes a barrel with a screw inside the barrel. First, the two components are heated to 280°C at the front end of the barrel, and the barrel Gradually lower the heating temperature at the back end of the plasticized melt solution to 210°C.
[0017] Molding, cooling the extruded packing belt intermediate after plasticization to normal temperature, and then heating and softening in an oven, the softening temperature is 280°C, after softening, use a mold to press and form, and the formed packing belt is heated through an oven for secondary softening , the secondary softening temperature is controlled at 280° C...
Embodiment 2
[0019] Get raw material polyolefin filler masterbatch 60kg and polypropylene resin 100kg,
[0020] For plasticizing, melt the two components at 290°C, and then gradually lower the temperature to 220°C. Extrude using plastic extrusion equipment. In the implementation process, a plastic extruder can be used for the plasticizing extrusion process. The plasticizing extruder includes a barrel with a screw inside the barrel. First, the two components are heated to 320°C at the front end of the barrel, and the barrel Gradually reduce the heating temperature at the back end of the plasticized melt solution to 220°C.
[0021] Molding, cooling the extruded packing tape intermediate after plasticization to normal temperature, then heating and softening in an oven, the softening temperature is 320°C, after softening, use a mold to press and form, and the formed packing tape is heated through an oven for secondary softening , the secondary softening temperature is controlled at 320° C., ...
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