Stearic acid modified PVC wood plastic and preparation method thereof
A stearic acid and modification technology, which is applied in the field of stearic acid modified PVC wood plastic and its preparation, can solve the problems of mismatching processing temperature and low performance of wood plastic products, and achieve high bending strength, good economic benefits and high efficiency. Social effect, good practical effect
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Embodiment 1
[0020] Modified PVC composite stabilizer: Dry the PVC composite stabilizer and lithium chloride in an oven until the water content is below 0.1%, mill the lithium chloride in a ball mill, pass through a 80-mesh screen, and separate the components by Weigh the following parts by weight: 50 parts of PVC composite stabilizer, 10 parts of lithium chloride, 35 parts of PE, 5 parts of maleic anhydride grafted PE, mix in an internal mixer for 5 minutes, set the temperature at 240°C, and knead The final stearic acid modified PVC alloy is crushed in the crusher.
[0021] Wood-plastic preparation: the weight fractions of the following components are respectively: 50 parts of stearic acid-modified PVC alloy, 40 parts of wood fiber, 5 parts of zinc stearate, and 5 parts of iron oxide red. The above materials are mixed in a mixer and granulated by a granulator, and the granulated material is extruded into shape.
Embodiment 2
[0023] Modified PVC composite stabilizer: Dry the PVC composite stabilizer and lithium chloride in an oven until the moisture content is below 0.1%, mill the lithium chloride in a ball mill, pass through a 100-mesh screen, and separate the components by Weigh the following parts by weight: 70 parts of PVC composite stabilizer, 15 parts of lithium chloride, 10 parts of PP, 5 parts of maleic anhydride grafted PP, mix in a mixer for 8 minutes, and then granulate. The temperature of each zone of the granulator is set at 180-280°C.
[0024] Wood-plastic preparation: the weight fractions of the following components are respectively: 80 parts of stearic acid modified PVC alloy, 10 parts of wood fiber, 5 parts of calcium stearate, and 5 parts of iron oxide yellow. The above materials are mixed in a mixer and granulated by a granulator, and the granulated material is injection molded.
Embodiment 3
[0026] Modified PVC composite stabilizer: Dry the PVC composite stabilizer and calcium chloride in an oven until the moisture content is below 0.1%. After the calcium chloride is ball-milled in a ball mill, pass through a 100-mesh sieve and separate the components into The following parts by weight are weighed: 60 parts of PVC composite stabilizer, 10 parts of calcium chloride, 10 parts of PE, 10 parts of PP, 5 parts of GMA grafted PE, 5 parts of maleic anhydride grafted PP, mixed in the internal mixer For 5 minutes, the temperature was set at 240° C., and the kneaded stearic acid-modified PVC alloy was crushed in a crusher.
[0027] Wood-plastic preparation: the weight fractions of the following components are respectively: 25 parts of stearic acid-modified PVC alloy, 70 parts of wood fiber, 3 parts of stearic acid, and 2 parts of titanium dioxide. The above materials are mixed in a mixer and granulated by a granulator, and the granulated material is extruded into shape.
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