Colored polylactic acid particle manufacturing equipment and preparation method thereof

Abstract

The invention discloses colored polylactic acid particle manufacturing equipment and a preparation method thereof. The colored polylactic acid particle manufacturing equipment comprises a box assembly, an extruder, an underwater granulator and a mixing assembly. By arranging a quantitative feeding assembly, polylactic acid raw materials are added into a box through a first feeding pipe, pigment raw material liquid is put into a quantitative pipe, the pigment raw material liquid is calibrated through a graduated scale, the adding accuracy of the pigment raw material liquid is guaranteed, the pigment raw material liquid is added into the box by opening a discharging valve, quantitative adding of the pigment raw material liquid is facilitated, other equipment does not need to be used for auxiliary operation, and the manufacturing cost of the colored polylactic acid particles is reduced. By arranging the mixing assembly, a mixing motor is connected to a mains supply to be powered on for operation, the mixing motor drives a rotating rod to rotate, the polylactic acid raw materials and the pigment raw material liquid are mixed through a first mixing plate, a second mixing plate and a third mixing plate so that the polylactic acid raw materials and the pigment raw material liquid can be evenly mixed, and the production quality of colored polylactic acid particles is improved.

Description

technical field [0001] The invention relates to the technical field of polylactic acid production, in particular to colored polylactic acid particle manufacturing equipment and a preparation method thereof. Background technique [0002] Polylactic acid is a type of biopolymer material made from cassava, sorghum, corn, straw and other crops through fermentation, purification, polymerization and other production processes. Its production energy consumption is lower than that of synthetic materials produced from petroleum products Polymer energy consumption is 30% to 50% lower. Under normal temperature and humidity conditions, the physical properties of polylactic acid and its products are stable. The waste of polylactic acid can be degraded into carbon dioxide and water by microorganisms in soil or seawater, and then recycled Plant photosynthesis can infinitely reciprocate into the natural cycle. Therefore, polylactic acid is an ideal green polymer material. Polylactic acid ha...

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Problems solved by technology

[0002] Polylactic acid is a type of biopolymer material made from cassava, sorghum, corn, straw and other crops through fermentation, purification, polymerization and other production processes. Its production energy consumption is lower than that of synthetic materials produced from petroleum products Polymer energy consumption is 30% to 50% lower. Under normal temperature and humidity conditions, the physical properties of polylactic acid and its products are stable. The waste of polylactic acid can be degraded into carbon dioxide and water by microorganisms in soil or seawater, and then recycled Plant photosynthesis can infinitely reciprocate into the natural cycle. Therefore, polylactic acid is an ideal green polymer material. Polylactic acid has many applications and can be used in the fields of automobiles, disposable products and electronics. For example, in In the field of disposable products, due to the absolutely harmless characteristics of polylactic acid to the human body, polylactic acid has unique advantages in disposable tableware, food packaging materials, etc., and the Chinese patent No. CN 110922613 A discloses a colored polymer Although the lactic acid particles and the preparation method simplify the production process of the existing colored polylactic acid products, reduce the energy consumption in the production process of the colored polylactic acid products, and reduce the raw material cost of the colored polylactic acid products, the existing colored polylactic acid products Lactic acid particle manufacturing equipment is not convenient for quantitative addition of pigment raw material liquid, and the equipment in it is required for auxiliary operations during quantitative addition, which reduces the utilization rate of manufacturing equipment and increases the manufacturing cost of colored polylactic acid particles. Therefore, it is urgent to develop a colored polylactic acid particle Manufacturing equipment and preparation method thereof, to solve the above problems, and facilitate market promotion and application

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