Degradable plastic containing algae protein and preparation method of degradable plastic

A technology for degrading plastics and algae proteins, applied in the field of degradable plastics, to achieve good fluidity, resource saving, and low production costs

Active Publication Date: 2015-04-01
无锡太湖蓝藻资源应用技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there has been no report on the use of microalgae protein to prepare degradable materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a degradable plastic containing algae protein, the specific steps are as follows:

[0027] (1) Select fresh Taihu Lake blue-green algae, dry and pulverize it to make Taihu Lake blue-green algae powder 2000g, add 10 times the mass concentration of Taihu Lake blue-green algae powder and be 0.5% sodium hydroxide solution, mix well, carry out high-pressure homogenization under 30MPa pressure The wall was broken 5 times to obtain the broken liquid of Taihu cyanobacteria, which was incubated at 30°C for 60 minutes, filtered, and the supernatant was collected by centrifugation;

[0028] (2) Add acetic acid dropwise to the collected supernatant, stir while adding, until the protein precipitates; then centrifuge the separated protein, wash the protein with clean water, put it in an oven at 50°C to dry, and obtain Taihu cyanobacteria protein pink;

[0029] (3) Add 95g of Taihu cyanobacteria protein powder into 150g of 0.1% potassium tartrate solution by ma...

Embodiment 2

[0033] A method for preparing a degradable plastic containing algae protein, the specific steps are as follows:

[0034] (1) Choose fresh spirulina, dry and pulverize it to make 1000g of spirulina powder, add 15 times the mass concentration of spirulina powder mass and be 0.25% sodium hydroxide solution, mix well, carry out high-pressure homogenization under 90MPa pressure The wall of spirulina was broken three times to obtain the broken liquid of spirulina, which was incubated at 50°C for 20 minutes, filtered, and the supernatant was collected by centrifugation;

[0035] (2) Add acetic acid dropwise to the collected supernatant, stir while adding, until the protein precipitates; then centrifuge the separated protein, wash the protein with water, put it in an oven at 50°C to dry, and obtain the spirulina protein pink;

[0036] (3) Get 80g of spirulina protein powder and add it to 0.1% potassium tartrate solution. During the addition, stir continuously until the spirulina prot...

Embodiment 3

[0040] A method for preparing a degradable plastic containing algae protein, the specific steps are as follows:

[0041] (1) Select fresh chlorella, dry and pulverize it to make 1000g of chlorella powder, add 0.3% (w / w) sodium hydroxide solution of 10 times the mass of algal powder, and heat-preserve at 50°C for one hours, filtered, centrifuged to collect the supernatant,

[0042] (2) Add acetic acid dropwise to the collected supernatant, stir while adding, until the protein precipitates; then centrifuge the separated protein, wash the protein with clean water, put it in an oven at 50°C for drying, and obtain Chlorella protein powder;

[0043] (3) Get 85g of chlorella protein powder and join in 0.1% potassium tartrate solution, stir continuously in the process of adding after the chlorella protein powder is fully dispersed, add 10g of adipic acid, and react with 1g of glutaraldehyde for 60 minutes; Add 18 g of hydroxypropyl starch, heat to 60° C., and keep the temperature for ...

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Abstract

The invention discloses a degradable plastic containing algae protein. The degradable plastic is prepared from the following major raw materials in parts by weight: 80-100 parts of microalgae protein powder, 0-20 parts of starch, 2-10 parts of modifier, 10-30 parts of plasticizer and 1-10 parts of surfactant; the various components are mixed in proportions, put into the plate mold of a press vulcanizer, and subjected to hot-pressing and cold-pressing processes, and finally, the degradable plastic containing the algae protein as the major component is obtained. The invention provides a treatment method for changing algae into things of value for the algae bloom burst period; as a result, the treatment method is advantageous for environmental protection.

Description

technical field [0001] The invention relates to the field of degradable plastics, in particular to a degradable plastic with algal protein as the main raw material and a preparation method thereof. Background technique [0002] In recent years, with the rapid growth of economy and population, the eutrophication of water body has become more and more serious, and the phenomenon of cyanobacteria bloom has occurred frequently. The problem of cyanobacteria has become an important research topic in the lake basin. In the event of a blue-green algae outbreak, direct salvage of blue-green algae is the most direct, safe and effective emergency treatment method to slow down the outbreak and protect the ecological environment of the water body. According to statistics, during the outbreak of cyanobacteria in Taihu Lake in 2011, the amount of cyanobacteria salvaged reached 3,000 tons per day, and the total amount of cyanobacteria salvaged throughout the year was 970,000 tons. In addit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L89/00C08L3/02C08L3/08C08L3/10C08L3/06C08K5/00C08K5/053C08K5/20C08K5/103C08K5/372C08K5/17C08H1/00B29C43/58
Inventor 朱年青王庆
Owner 无锡太湖蓝藻资源应用技术研究院有限公司
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