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CN-122011542-A - Production method of environment-friendly plastic

CN122011542ACN 122011542 ACN122011542 ACN 122011542ACN-122011542-A

Abstract

The invention discloses a production method of environment-friendly plastic, which relates to the technical field of environment-friendly plastic production and comprises the following steps of extracting starch from sweet potatoes and kudzuvine roots, extracting concentrated juice from sugarcane, mixing the starch into the concentrated juice to prepare a bio-based mixture, preparing the bio-based mixture into a bio-based polymer through fermentation and polymerization processes, heating and melting the bio-based polymer, adding polyethylene, polypropylene, a plasticizer and an antioxidant into the bio-based polymer under the stirring condition of 200-300 r/min, continuously stirring and mixing for 10-30 min, and uniformly cooling and solidifying, wherein the prepared bio-based material can promote degradability of the plastic material, reduce environmental pollution and dependence on fossil fuel, can be used repeatedly, and reduce the requirement on new materials.

Inventors

  • FU WENBO
  • YANG CHUNPING
  • NIU JIYE
  • WANG TAN
  • LI HAIFENG
  • LIU FENGJIN

Assignees

  • 菏泽职业学院

Dates

Publication Date
20260512
Application Date
20241112

Claims (10)

  1. 1. The production method of the environment-friendly plastic is characterized by comprising the following steps of: s1, preparing a bio-based mixture Extracting starch from sweet potato and radix Puerariae, extracting concentrated juice from sugarcane, mixing starch with the concentrated juice, and making into biological base mixture; s2, preparing a bio-based polymer from the bio-based mixture through fermentation and polymerization processes; S3, heating and melting the bio-based polymer, adding polyethylene, polypropylene, plasticizer and antioxidant into the bio-based polymer under the stirring condition of the rotating speed of 200-300 r/min, continuously stirring and mixing the mixture for 10-30 min, and then cooling and solidifying the mixture at uniform speed.
  2. 2. The method for producing an environment-friendly plastic as claimed in claim 1, wherein, In the preparation of the biobased mixture S1: 1) Synchronously adding the sweet potatoes and the kudzuvine roots into a crushing mechanism for crushing, and filtering by using a 4-7-mesh filtering device to remove unqualified substances; 2) Adding warm water with the temperature of 30-50 ℃, heating at the heating rate of 3-5 ℃ per minute for 2-4 h, naturally cooling, and filtering by using a filter cloth with the mesh of 50-300 when the temperature is cooled to 10-15 ℃; 3) And heating and evaporating the filtered filtrate to dryness to finish the extraction of the starch.
  3. 3. The method for producing an environment-friendly plastic as claimed in claim 2, wherein, In the preparation of the biobased mixture S1: 1) Synchronously adding the sweet potatoes and the kudzuvine roots into a crushing mechanism for crushing, and filtering by using a 5-mesh filtering device to remove unqualified substances; 2) Adding warm water with the temperature of 35 ℃, heating at the heating rate of 4 ℃ per minute for 3h, naturally cooling, and filtering by using a 180-mesh filter cloth when cooling to 12 ℃; 3) And heating and evaporating the filtered filtrate to dryness to finish the extraction of the starch.
  4. 4. The method for producing an environment-friendly plastic according to claim 2 or 3, wherein the warm water is added by adding the warm water at a speed of 50 mL/min while stirring at a speed of 15 r/min, and after the warm water is added completely, the speed is increased to 100 r/min.
  5. 5. The method for producing the environment-friendly plastic according to claim 2 or 3, wherein the method for heating and evaporating the filtered filtrate is that the filtered filtrate is spread on a pan at a depth of 5 cm, stirred at a rotating speed of 15 r/min, and simultaneously the pan is heated and evaporated.
  6. 6. The method for producing an environment-friendly plastic as claimed in claim 1, wherein, In the preparation of the biobased mixture S1: 1) Extruding the sugarcane to obtain juice, and adding warm water with the temperature of 20-30 ℃ into the juice in the stirring process at the rotating speed of 20-30 r/min; 2) Filtering with 1-3 mesh filter cloth to remove impurities; 3) Heating and concentrating the filtrate to finish extracting the concentrated juice from the sugarcane.
  7. 7. The method for producing an environment-friendly plastic as claimed in claim 6, wherein, In the preparation of the biobased mixture S1: 1) Extruding sugarcane to obtain juice, and adding warm water with the temperature of 28 ℃ into the juice in the stirring process at the rotating speed of 28 r/min; 2) Filtering with 2-mesh filter cloth to remove impurities; 3) Heating and concentrating the filtrate to finish extracting the concentrated juice from the sugarcane.
  8. 8. The method for producing environment-friendly plastic according to claim 6 or 7, wherein the volume ratio of the added and mixed juice to the warm water is 1:2.
  9. 9. The method for producing an environment-friendly plastic as claimed in claim 6 or 7, wherein the filtrate is heated and concentrated in a temperature environment of 100 ℃.
  10. 10. The method for producing environment-friendly plastic according to claim 1, wherein in the step S3, after the bio-based polymer is heated and melted, polyethylene, polypropylene, plasticizer and antioxidant are added under the condition of stirring at a rotation speed of 280 r/min, and then stirring and mixing are continuously carried out for 19: 19 min, and then cooling and solidifying are carried out at uniform speed.

Description

Production method of environment-friendly plastic Technical Field The invention relates to the technical field of environment-friendly plastic production, in particular to a production method of environment-friendly plastic. Background Plastics are important organic synthetic polymer materials, and are widely applied. If we can know the composition and classification of the plastic in detail, we can not only help us to use the plastic products scientifically, but also be beneficial to the classification and recovery of the plastic, and effectively control and reduce the white pollution. Among them, the environment-friendly plastic is generally referred to as degradable or recyclable plastic material, and is intended to reduce the influence on the environment. Therefore, the market needs mature environment-friendly plastic, and particularly provides a production method of the environment-friendly plastic. Disclosure of Invention The invention aims to provide a production method of environment-friendly plastic, which aims to solve the problems in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: the production method of the environment-friendly plastic comprises the following steps: s1, preparing a bio-based mixture Extracting starch from sweet potato and radix Puerariae, extracting concentrated juice from sugarcane, mixing starch with the concentrated juice, and making into biological base mixture; s2, preparing a bio-based polymer from the bio-based mixture through fermentation and polymerization processes; S3, heating and melting the bio-based polymer, adding polyethylene, polypropylene, plasticizer and antioxidant into the bio-based polymer under the stirring condition of the rotating speed of 200-300 r/min, continuously stirring and mixing the mixture for 10-30 min, and then cooling and solidifying the mixture at uniform speed. Therefore, the prepared bio-based material can promote the degradability of the plastic material, reduce the environmental pollution and the dependence on fossil fuel through the effective components extracted from the sugarcane, the sweet potato and the kudzuvine root, can be used for multiple times, and reduces the requirement on new materials. The invention further provides a scheme that in the preparation of the bio-based mixture S1: 1) Synchronously adding the sweet potatoes and the kudzuvine roots into a crushing mechanism for crushing, and filtering by using a 4-7-mesh filtering device to remove unqualified substances; 2) Adding warm water with the temperature of 30-50 ℃, heating at the heating rate of 3-5 ℃ per minute for 2-4 h, naturally cooling, and filtering by using a filter cloth with the mesh of 50-300 when the temperature is cooled to 10-15 ℃; 3) And heating and evaporating the filtered filtrate to dryness to finish the extraction of the starch. In still a further aspect of the present invention, in the preparation of the biobased mixture S1: 1) Synchronously adding the sweet potatoes and the kudzuvine roots into a crushing mechanism for crushing, and filtering by using a 5-mesh filtering device to remove unqualified substances; 2) Adding warm water with the temperature of 35 ℃, heating at the heating rate of 4 ℃ per minute for 3h, naturally cooling, and filtering by using a 180-mesh filter cloth when cooling to 12 ℃; 3) And heating and evaporating the filtered filtrate to dryness to finish the extraction of the starch. The invention further provides a scheme that the warm water is added at a speed of 50 mL/min, and is stirred at a rotating speed of 15 r/min, and the rotating speed is increased to 100 r/min after the warm water is completely added. According to a still further scheme, the method for heating and evaporating the filtered filtrate is that the filtered filtrate is flatly paved on a pan at the depth of 5 cm, stirred at the rotating speed of 15 r/min, and heated and evaporated to dryness. The invention further provides a scheme that in the preparation of the bio-based mixture S1: 1) Extruding the sugarcane to obtain juice, and adding warm water with the temperature of 20-30 ℃ into the juice in the stirring process at the rotating speed of 20-30 r/min; 2) Filtering with 1-3 mesh filter cloth to remove impurities; 3) Heating and concentrating the filtrate to finish extracting the concentrated juice from the sugarcane. In still a further aspect of the present invention, in the preparation of the biobased mixture S1: 1) Extruding sugarcane to obtain juice, and adding warm water with the temperature of 28 ℃ into the juice in the stirring process at the rotating speed of 28 r/min; 2) Filtering with 2-mesh filter cloth to remove impurities; 3) Heating and concentrating the filtrate to finish extracting the concentrated juice from the sugarcane. According to a still further scheme, the volume ratio of the added and mixed juice to the warm water is 1:2. In a still further aspect of t