Manufacturing method of film made from inorganic ore powder by casting method
A technology of inorganic mineral powder and a manufacturing method, which is applied in the field of film manufacturing, can solve the problems that the melting point cannot be consistent, the finished product is easy to remove powder, etc., and achieves the effects of improving temperature resistance, weakening impact resistance and good dispersion.
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Embodiment 1
[0026] The core of the invention is to disclose a manufacturing method of a thin film made of inorganic mineral powder by casting method, so as to improve the environmental performance of the thin film and reduce the production cost of the thin film. In addition, the examples shown below do not limit the content of the invention described in the claims in any way. In addition, all the contents of the configurations shown in the following embodiments are not limited to be essential to the solution of the invention described in the claims.
[0027] A kind of manufacture method of the thin film that is manufactured by casting method by inorganic mineral powder, it is characterized in that, comprises the following steps:
[0028] Step A: Weigh each raw material: add 56%-85% by weight of inorganic mineral powder, 25%-35% by weight of resin and 3%-5% of additives into the mixer, mix for 20 to 25 minutes, and mix Machine speed is 100-130r / min;
[0029] Step B: Granulation: When the...
Embodiment 2
[0039] The invention also discloses a method for manufacturing an environmentally friendly agricultural film made of inorganic mineral powder by tape casting, which includes the following steps:
[0040] Step A: Weigh each raw material: add 65% by weight of inorganic mineral powder, 7% by weight of polypropylene, 25% by weight of low-density polyethylene, and 3% of additives into the mixer, and mix for 20 to 25 minutes , the speed of the mixer is 105-115r / min;
[0041] Step B: Granulation: When the screw rotates at high speed, the mixture obtained in step A in the feeder is pushed to the machine head, melted and kneaded at the temperature of 180°C to 190°C in the extruder, the material is melted rapidly, extruded After being discharged, it is granulated at a high speed through the knife edge to make granular materials;
[0042] Step C: After the granulation is completed, vacuum dehydration is carried out under the action of the vacuum pump, conveyed by the screw under strong pr...
Embodiment 3
[0047] The invention also discloses a manufacturing method of a building material packaging film manufactured by casting method of inorganic mineral powder, comprising the following steps:
[0048] Step A: Weigh each raw material: add 71% by weight of inorganic mineral powder, 5% by weight of polypropylene, 20% by weight of medium density polyethylene, and 4% of additives into the mixer, and mix for 20 to 25 minutes , the speed of the mixer is 110-115r / min;
[0049] Step B: Granulation: When the screw rotates at high speed, the mixture obtained in step A in the feeder is pushed to the machine head, and melted and kneaded at the temperature of 190°C to 210°C in the extruder, and the material is melted rapidly and extruded After being discharged, it is granulated at a high speed through the knife edge to make granular materials;
[0050] Step C: After the granulation is completed, vacuum dehydration is carried out under the action of the vacuum pump, conveyed by the screw under...
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