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CN-121975296-A - Preparation method of degradable elastic material and application of degradable elastic material in electric kettle

CN121975296ACN 121975296 ACN121975296 ACN 121975296ACN-121975296-A

Abstract

The invention relates to the technical field of elastic materials, in particular to a preparation method of a degradable elastic material and application of the degradable elastic material in an electric kettle, wherein the degradable elastic material comprises, by weight, 40-50 parts of bio-based polyether polyol, 20-30 parts of polylactic acid, 6-10 parts of bio-based polybutylene terephthalate, 6-10 parts of bio-based polycaprolactone triol, 4-6 parts of filler, 2-4 parts of citric acid, 2-4 parts of itaconic anhydride, 0.6-1 part of zinc stearate, 0.4-0.6 part of stannous octoate and 1-2 parts of erucic acid amide. In the invention, bacteria are metabolized and propagated, hydrolytic enzymes are secreted, the hydrolytic enzymes are fixed in the filler in the subsequent freeze-drying treatment, when the final material is in a microorganism-rich environment, the preloaded hydrolytic enzymes are activated and slowly released, the hydrolysis reaction is started in the material, the breaking of polymer chains is greatly accelerated, and the degradation efficiency of the kettle material made of the degradable elastic material is effectively improved.

Inventors

  • HUANG LIHUA
  • WANG CHUNLEI

Assignees

  • 吨吨健康科技集团有限公司

Dates

Publication Date
20260505
Application Date
20260206

Claims (10)

  1. 1. The degradable elastic material is characterized by comprising, by weight, 40-50 parts of bio-based polyether polyol, 20-30 parts of polylactic acid, 6-10 parts of bio-based polybutylene terephthalate, 6-10 parts of bio-based polycaprolactone triol, 4-6 parts of filler, 2-4 parts of citric acid, 2-4 parts of itaconic anhydride, 0.6-1 part of zinc stearate, 0.4-0.6 part of stannous octoate and 1-2 parts of erucamide; The filler is prepared by the following method: S1, preparing an additive, wherein the additive comprises raw materials of polyglycolide, dichloromethane, dimethyl sulfoxide and mixed solution, and the mixed solution comprises luteolin, chitosan, polyglutamic acid, deionized water and bacillus licheniformis; s2, preparing auxiliary materials, wherein the auxiliary materials comprise KH560, diethylene glycol, carbon black and dimethyl 2, 5-furandicarboxylate; And S3, mixing, namely stirring the additive and the auxiliary materials for 20-30 min under the condition of 300-400 rpm to obtain the filler.
  2. 2. The degradable elastic material according to claim 1, wherein the preparation method of the additive comprises the steps of adding polyglycolide, methylene dichloride and dimethyl sulfoxide into a mixer, setting the rotation speed of the mixer to be 800-1000 rpm, treating for 20-30min, stirring the obtained product, homogenizing and emulsifying the obtained product, centrifuging the obtained product to obtain a solid, washing the solid by deionized water, freeze-drying the obtained product to obtain coarse material, adding the coarse material and mixed solution into the mixer, setting the mixer to be 400-600 rpm, stirring for 20-40 min, centrifuging the obtained product to obtain a solid, washing the solid by deionized water, and freeze-drying the obtained product to obtain the additive.
  3. 3. The degradable elastic material according to claim 2, wherein the mass ratio of the polyglycolide to the dichloromethane to the dimethyl sulfoxide is 1 (0.1-0.2): (0.06-0.08), and the mass ratio of the coarse material to the mixed solution is 1 (2-4).
  4. 4. The degradable elastic material according to claim 2, wherein the mixed solution is prepared by adding luteolin, chitosan, polyglutamic acid and deionized water into a mixed material, setting a mixer at 60-100 rpm, stirring for 10-20 min, adding bacillus licheniformis into the obtained product, culturing for 10-20 h at 36-38 ℃, and mixing the obtained product with 2-3 times of methanol to prepare the mixed solution.
  5. 5. The degradable elastic material according to claim 4, wherein the mass ratio of luteolin to chitosan to polyglutamic acid to deionized water is 1 (0.3-0.5): (0.1-0.2): (2-3), and the mass of bacillus licheniformis is 0.2-0.4% of the mass of luteolin.
  6. 6. The degradable elastic material according to claim 1, wherein the auxiliary material is prepared by adding KH560, diethylene glycol and carbon black into a reaction kettle, setting the rotating speed of the reaction kettle to be 60-100 rpm, stirring at 100 ℃, 120 ℃ and 140 ℃ for 40min, adding the obtained product into a mixer, adding dimethyl 2, 5-furandicarboxylate into the mixer, and stirring at 200-300 rpm for 10-20 min to obtain the auxiliary material.
  7. 7. The degradable elastic material according to claim 6, wherein the mass ratio of KH560, diethylene glycol and carbon black is 1 (0.4-0.6): (6-8), and the mass of dimethyl 2, 5-furandicarboxylate is 70-90% of the mass of carbon black.
  8. 8. The degradable elastic material according to claim 1, wherein the mass of the auxiliary material is 10-20% of the mass of the additive.
  9. 9. A preparation method of the degradable elastic material according to any one of claims 1-8 is characterized by comprising the steps of feeding polylactic acid and bio-based polybutylene terephthalate into a vacuum drying oven, setting the temperature to be 60-80 ℃, feeding the bio-based polyether polyol into an oven for drying at 40-60 ℃ for 40-60 min, weighing the bio-based polyether polyol, polylactic acid and bio-based polybutylene terephthalate which are subjected to treatment according to requirements, feeding the bio-based polyether polyol, polylactic acid and bio-based polybutylene terephthalate into a reaction kettle, setting the rotating speed to be 200-300 rpm, setting the temperature to be 100-140 ℃, treating for 4-6 min, then feeding itaconic anhydride and bio-based polycaprolactone triol, setting the temperature to be 150-170 ℃, treating for 2-3 min, then feeding citric acid and stannous octoate, setting the temperature to be 160-180 ℃, treating 1-2 min, feeding the obtained product into a twin-screw extruder, weighing filler, zinc stearate and erucamide according to requirements in the twin-screw extruder, feeding the twin-screw extruder into the twin-screw extruder for rotating speed to be 200-300 rpm, setting the rotating speed to be 230-3 ℃ and carrying out the obtained product, and carrying out the degradation treatment to obtain the material, wherein the obtained material is subjected to the degradation, and the material is subjected to 5-5 m-3 m.
  10. 10. The application of the degradable elastic material prepared by the preparation method of the degradable elastic material is characterized by comprising the following steps of adding the degradable elastic material into an injection molding machine for melting treatment, injecting the melted material into a mold, opening the mold after cooling and shaping, taking out a molded object for trimming treatment, and preparing the base and shell materials of the electric kettle.

Description

Preparation method of degradable elastic material and application of degradable elastic material in electric kettle Technical Field The invention relates to the technical field of elastic materials, in particular to a preparation method of a degradable elastic material and application of the degradable elastic material in an electric kettle. Background The elastic material is a material which deforms under the action of external force and can recover the original shape after the external force is removed, and the elasticity of the elastic material is derived from reversible interaction among molecules or atoms, so that the elastic material is widely applied to the fields of packaging materials, sealing elements, medical instruments and the like. In the prior art, although the electric kettle material made of the elastic material has better strength performance in use, the electric kettle material has poorer degradation performance, and the electric kettle material has larger environmental pollution after being abandoned, thereby being not beneficial to large-area popularization and use. Based on the above, the invention provides a preparation method of a degradable elastic material and application of the degradable elastic material in an electric kettle. Disclosure of Invention The invention aims to provide a preparation method of a degradable elastic material and application thereof in an electric kettle, the electric kettle material prepared by the invention not only has better degradation performance, but also has excellent strength performance, and the service performance of the electric kettle material is effectively improved. In order to achieve the above purpose, the present invention provides the following technical solutions: The degradable elastic material comprises, by weight, 40-50 parts of bio-based polyether polyol, 20-30 parts of polylactic acid, 6-10 parts of bio-based polybutylene terephthalate, 6-10 parts of bio-based polycaprolactone triol, 4-6 parts of filler, 2-4 parts of citric acid, 2-4 parts of itaconic anhydride, 0.6-1 part of zinc stearate, 0.4-0.6 part of stannous octoate and 1-2 parts of erucamide; The filler is prepared by the following method: S1, preparing an additive, wherein the additive comprises raw materials of polyglycolide, dichloromethane, dimethyl sulfoxide and mixed solution, and the mixed solution comprises luteolin, chitosan, polyglutamic acid, deionized water and bacillus licheniformis; s2, preparing auxiliary materials, wherein the auxiliary materials comprise KH560, diethylene glycol, carbon black and dimethyl 2, 5-furandicarboxylate; And S3, mixing, namely stirring the additive and the auxiliary materials for 20-30 min under the condition of 300-400 rpm to obtain the filler. The preparation method of the additive comprises the steps of adding the poly-glycolide, the methylene dichloride and the dimethyl sulfoxide into a mixer, setting the rotating speed of the mixer to 800-1000 rpm, treating for 20-30 min, stirring the obtained product, homogenizing and emulsifying the obtained product, centrifuging the obtained product to obtain a solid, washing the solid by deionized water, freeze-drying the obtained product to obtain coarse materials, adding the coarse materials and mixed solution into the mixer, setting the mixer to 400-600 rpm, stirring the obtained product for 20-40 min, centrifuging the obtained product to obtain a solid, washing the solid by deionized water, and freeze-drying the obtained product to obtain the additive. Further, the mass ratio of the polyglycolide to the dichloromethane to the dimethyl sulfoxide is 1 (0.1-0.2) (0.06-0.08), and the mass ratio of the coarse material to the mixed solution is 1 (2-4). The mixed liquid is prepared by adding luteolin, chitosan, polyglutamic acid and deionized water into a mixed material, setting a mixer at 60-100 rpm, stirring for 10-20 min, adding bacillus licheniformis into the obtained product, culturing for 10-20 h at 36-38 ℃, and mixing the obtained product with 2-3 times of methanol to prepare the mixed liquid. Further, the mass ratio of luteolin to chitosan to polyglutamic acid to deionized water is 1 (0.3-0.5) (0.1-0.2) (2-3), and the mass of bacillus licheniformis is 0.2-0.4% of the mass of luteolin. The preparation method of the auxiliary material comprises the steps of adding KH560, diethylene glycol and carbon black into a reaction kettle, setting the rotating speed of the reaction kettle to be 60-100 rpm, stirring at 100 ℃, 120 ℃ and 140 ℃ for 40min respectively, adding the obtained product into a mixer, adding 2, 5-dimethyl furandicarboxylate into the mixer, and stirring at 200-300 rpm for 10-20 min to obtain the auxiliary material. Further, the mass ratio of KH560, diethylene glycol and carbon black is 1 (0.4-0.6): (6-8), and the mass of 2, 5-dimethyl furandicarboxylate is 70-90% of the mass of carbon black. Further, the mass of the auxiliary materials is 10-20% of the mass of the additive mate