PVC (polyvinyl chloride) board and production method thereof
A sheet material and raw material technology, applied in the field of PVC sheet material and production, can solve the problems of low sheet forming efficiency, high production cost, and large energy consumption, and achieve the effects of saving a lot of energy, normal color, and improving production efficiency
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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% PVC waste, 7% 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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