PVC sheet and its production method
A board and raw material technology, applied in the field of PVC board and production, can solve the problems of low board forming efficiency, high material cost, high production cost, etc., and achieve the effect of saving a lot of energy, simplifying the process and normal color
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Embodiment 1
[0050] (1) Add 0.8% stabilizer, 3.5% foam regulator, 0.15% yellow foam, 0.4% white foam, 0.05% PE wax, 0.2% OK60, 0.15% OA6, 1% ACM, 86% of PVC waste, and 7.75% of calcium powder were mixed evenly at 70°C.
[0051] (2) Send the uniformly mixed raw materials directly into the extruder for foaming, and then extrude through the extrusion die. Control the temperature of the extruder at 170-190°C, The temperature is 10-15°C.
[0052] (3) Cool and shape the molten material leaving the extrusion die to form a PVC sheet with smooth upper and lower surfaces.
[0053] (4) Trim and cut the PVC sheet.
Embodiment 2
[0055] (1) Add 1.1% stabilizer, 4% foam regulator, 0.3% yellow foam, 0.7% white foam, 0.25% PE wax, 0.4% OK60, 0.3% OA6, 1.7% ACM, 84.25% of PVC waste, 7% of calcium powder are mixed evenly at 60-70°C.
[0056] (2) Send the uniformly mixed raw materials directly into the extruder for foaming, and then extrude through the extrusion die. Control the temperature of the extruder at 170-190°C, The temperature is 10-15°C.
[0057] (3) Cool and shape the molten material leaving the extrusion die to form a PVC sheet with smooth upper and lower surfaces.
[0058] (4) Trim and cut the PVC sheet.
Embodiment 3
[0060] (1) Add 1.1% stabilizer, 4% foam regulator, 0.2% yellow foam, 0.5% white foam, 0.2% PE wax, 0.3% OK60, 0.2% OA6, 1.5% ACM, 84% PVC waste, and 8% calcium powder are mixed evenly at 60-70°C.
[0061] (2) Send the uniformly mixed raw materials directly into the extruder for foaming, and then extrude through the extrusion die. Control the temperature of the extruder at 170-190°C, The temperature is 10-15°C.
[0062] (3) Cool and shape the molten material leaving the extrusion die to form a PVC sheet with smooth upper and lower surfaces.
[0063] (4) Trim and cut the PVC sheet.
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