CN104479369A - Degradable plastic containing algae protein and preparation method of degradable plastic - Google Patents
Degradable plastic containing algae protein and preparation method of degradable plastic Download PDFInfo
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- CN104479369A CN104479369A CN201410799004.0A CN201410799004A CN104479369A CN 104479369 A CN104479369 A CN 104479369A CN 201410799004 A CN201410799004 A CN 201410799004A CN 104479369 A CN104479369 A CN 104479369A
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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
The present invention relates to degradable plastics field, especially relate to a kind of with algae albumen degradable plastics that is main raw material and preparation method thereof.
Background technology
In recent years, along with the quick growth of economy and population, body eutrophication phenomenon is day by day serious, and blue-green alga bloom phenomenon occurs again and again, and blue-green algae problem has become the important subject of lake basin.When Blue-green Algae Fast Growth, directly salvaging blue-green algae is slow down outburst degree, protection water ecological setting the most directly and safely and effectively Emergency management method.According to statistics, during Taihu Lake blue algae blooms in 2011, the blue-green algae salvaging amount of every day reaches 3000 tons, and the annual blue-green algae of salvaging altogether amount is 970,000 tons.Except Taihu Lake, Dian Chi, Chaohu also have blue algae bloom for several times every year, have every day the blue-green algae of thousands of tons of to need process.The blue-green algae of salvaging disembarkation can take a large amount of soils and stack, and stacking blue-green algae generation percolate will form secondary pollution by osmosis, storm runoff etc.Therefore the blue-green algae dealt carefully with after salvaging seems particularly important.
Blue-green algae is rich in more rich nutritive ingredient (protein, fat, carbohydrate etc.), therefore can as the potential novel biomass resource of a kind of tool.At present, the recycling of bloom blue algae mainly concentrates on as aspects such as bioenergy, bio-feritlizer, microorganism culturing raw material and biologically active substance extractions.Be detect cyanophycean toxin, from the utilization limiting its nutritive ingredient in the health-related food of raw material with blue-green algae at some.
Be that the macromolecular material of raw material is capturing most market after World War II with oil, but along with the day by day exhausted of petroleum resources and environmental pollution and ecological damage be on the rise, people start to seek Sustainable development, and environment amenable material carrys out petroleum replacing based high molecular material.Protein is natural macromolecular material, pollution-free, degradable, is the study hotspot in degradation material field.Thermoplastic vegetable protein processing characteristics is good, and in injection moulding, extrude, have excellent processing characteristics and mechanical property in blow-molding process, its goods can be degradable, environmental friendliness, can be widely used in the process for processing fields such as food, agricultural, packaging and environmental protection.At present, it is raw material that degradable biomaterial mainly concentrates on vegetable-protein, comprises soybean protein, cottonseed protein, wheat protein, Semen arachidis hypogaeae protein etc.But the protein of plant origin can cause food price to go up for the preparation of degradative plastics, and affects animal feed markets and take agriculture plantation.And micro-algae is one of wawter bloom that distribution is wide, scale is large and the time length is long in lake, countries in the world, therefore micro-algae protein source enriches, and has larger application potential.So far the research utilizing micro-algae albumen to prepare degradation material has not yet to see report.
Summary of the invention
For the problems referred to above that prior art exists, the invention provides a kind of degradable plastics containing algae albumen and preparation method thereof.Method of the present invention can reduce the use of non-degradable petroleum-based plastics, economizes on resources; Also for algal tufa burst period proposes the treatment process that a kind of algae changes harmful to treasure, protection of the environment is conducive to.
Technical scheme of the present invention is as follows:
A degradable plastics containing algae albumen, the parts by weight of main raw material and each raw material are: micro-algae protein powder 80-100 part, starch 0-20 part, properties-correcting agent 2-10 part, softening agent 10-30 part, tensio-active agent 1-10 part.
The raw material of described micro-algae protein powder to be selected from Microcystis aeruginosa, anabena, spirulina, artrospira spirulina, plan Anabaena, chamber ball algae, tip algae, the algae that quivers, sheet algae, Xi Zao, joint ball algae, chlorella one or more.
The proteinaceous massfraction of raw material of described micro-algae protein powder is not less than 30%.
The proteinaceous massfraction of raw material of described micro-algae protein powder is not less than 40%.
Described starch is native starch or treated starch.Described treated starch is one or more in Sumstar 190, starch acetate, hydroxypropylated starch, hydroxyethylamyle, carboxymethyl starch, propyloic starch.
Described properties-correcting agent is one or more in maleic anhydride, succinyl oxide, diacetyl oxide, citric acid, hexanodioic acid; Described softening agent is one or more in ethylene glycol, thiodiglycol, glycerol, sorbyl alcohol, thiodiglycol, methane amide, hexanolactam, glyceryl monoacetate, glyceryl diacetate, triacetin; Described tensio-active agent is one or more in propylene glycol fatty acid ester, glycerol fatty acid ester, glycerol-fatty acid diester, sucrose fatty ester, Span, sorbyl alcohol macrogol ester.
A preparation method for degradable plastics containing algae albumen, concrete steps are as follows:
(1) fresh micro-algae is chosen, microalgae powder end is made after oven dry, pulverizing, adding the 10-15 times of mass concentration to microalgae powder quality is the sodium hydroxide solution of 0.25%-0.75%, mixing, carry out high pressure homogenization broken wall 3-5 time under 30-90MPa pressure, obtain microalgae wall breaking liquid, isothermal holding 20-60 minute at 30-50 DEG C, filter, collected by centrifugation supernatant liquor;
(2) be added drop-wise in the supernatant liquor of collection by acetic acid, limit edged stirs, and separates out to protein; The protein that centrifugation is afterwards separated out, clear water washed protein, puts into the baking oven inner drying of 50 DEG C, namely obtains micro-algae protein powder;
(3) micro-for 80-100 part algae protein powder being joined 100-200 part massfraction is in the soluble tartrate solution of 0.1%, and limit edged stirs, and after micro-algae protein powder fully disperses, adds properties-correcting agent 2-10 part, is heated to 60 DEG C, reaction 30-60 minute; Add starch 0-20 part again, be heated to 60 DEG C, reaction 30-60 minute; After having reacted, vacuum lyophilization, the obtained micro-algae albumen/starch of modification;
(4) after modification micro-algae albumen/starch 80-100 part that step (3) is obtained fully being mixed with 10-30 part softening agent, 0-10 part tensio-active agent, mixture is placed in the flat plate mold of vulcanizing press, through hot pressing, coldmoulding process, obtain the degradable plastics being composition with algae albumen.
In described step (4), hot pressing condition is: temperature 150 DEG C, pressure 15MPa, 15 minutes time; The condition of colding pressing is: temperature 20 DEG C, and pressure 15MPa colds pressing 15 minutes time.
The technique effect that the present invention is useful is:
1, method of the present invention can reduce the use of non-degradable petroleum-based plastics, economizes on resources; Also for annual algal tufa burst period proposes the treatment process that a kind of algae changes harmful to treasure, protection of the environment is conducive to.
2, the present invention adopts high pressure homogenization broken wall, alkali extraction and acid precipitation obtains micro-algae protein powder, and can extract micro-algae albumen to greatest extent, protein extracting ratio reaches more than 80%, is applicable to extensive preparation.
3, the degradable plastics containing algae albumen of the present invention, low production cost, technique is simple, and has good mobility, is suitable for mold pressing, extrudes and injection molding, can be widely used in the process for processing fields such as food, agricultural, packaging and environmental protection.
4, the degradable plastics containing algae albumen of the present invention, can be decomposed by the microorganisms completely in soil, environmentally safe, degradation production can be used as fertilizer.
Embodiment
Below in conjunction with embodiment, the present invention is specifically described.
Embodiment 1
A preparation method for degradable plastics containing algae albumen, concrete steps are as follows:
(1) fresh Taihu Lake blue-green algae is chosen, Taihu Lake blue algae powder 2000g is made after oven dry, pulverizing, adding 10 times of mass concentrations to Taihu Lake blue algae powder quality is the sodium hydroxide solution of 0.5%, mixing, carry out high pressure homogenization broken wall under 30MPa pressure 5 times, obtain Taihu Lake blue green algae disrupted solution, isothermal holding 60 minutes at 30 DEG C, filter, collected by centrifugation supernatant liquor;
(2) be added drop-wise in the supernatant liquor of collection by acetic acid, limit edged stirs, and separates out to protein; The protein that centrifugation is afterwards separated out, clear water washed protein, puts into the baking oven inner drying of 50 DEG C, namely obtains Taihu Lake cyanophycin powder;
(3) 95g Taihu Lake cyanophycin powder being joined 150g massfraction is in the soluble tartrate solution of 0.1%, limit edged stirs, after cyanophycin powder fully disperses, add succinyl oxide 5g, be heated to 60 DEG C, react 50 minutes, after having reacted, vacuum lyophilization, the cyanophycin powder of obtained modification;
(4) by modification cyanophycin powder obtained for step (3) and 30g triacetin, 1g glycerol fatty acid ester, after abundant mixing, mixture is placed in the flat plate mold of vulcanizing press, through hot pressing, coldmoulding process, obtained ether lake cyanophycin is the degradable plastics of main component.
In described step (4), hot pressing condition is: temperature 150 DEG C, pressure 15MPa, 15 minutes time; The condition of colding pressing is: temperature 20 DEG C, and pressure 15MPa colds pressing 15 minutes time.
Embodiment 2
A preparation method for degradable plastics containing algae albumen, concrete steps are as follows:
(1) fresh spirulina is chosen, spirulina powder 1000g is made after oven dry, pulverizing, add the sodium hydroxide solution that 15 times of mass concentrations to spirulina powder quality are 0.25%, mixing, carry out high pressure homogenization broken wall under 90MPa pressure 3 times, obtain breaking wall of spirullina princeps liquid, isothermal holding 20 minutes at 50 DEG C, filter, collected by centrifugation supernatant liquor;
(2) be added drop-wise in the supernatant liquor of collection by acetic acid, limit edged stirs, and separates out to protein; The protein that centrifugation is afterwards separated out, clear water washed protein, puts into the baking oven inner drying of 50 DEG C, namely obtains spirulina protein powder;
(3) getting 80g spirulina protein powder joins in the soluble tartrate solution of 0.1%, constantly stirs after spirulina protein powder fully disperses, add citric acid 10g, react 60 minutes in adition process; Add Sumstar 190 20g again, be heated to 60 DEG C, be incubated 30 minutes, after having reacted, vacuum lyophilization obtains modification spirulina protein/starch.
(4) after modification spirulina protein/starch obtained for step (3) and 30g glycerine, 5g hexanolactam, 2.5g sorbyl alcohol macrogol ester fully being mixed, mixture is placed in the flat plate mold of vulcanizing press, through hot pressing, coldmoulding process, obtained take spirulina protein as the degradable plastics of main component.
In described step (4), hot pressing condition is: temperature 150 DEG C, pressure 15MPa, 15 minutes time; The condition of colding pressing is: temperature 20 DEG C, and pressure 15MPa colds pressing 15 minutes time.
Embodiment 3
A preparation method for degradable plastics containing algae albumen, concrete steps are as follows:
(1) choose fresh chlorella, make chlorella powder 1000g after oven dry, pulverizing, add the sodium hydroxide solution of 0.3% (w/w) of algae opaque amount 10 times, isothermal holding one hour at 50 DEG C, filter, collected by centrifugation supernatant liquor,
(2) be added drop-wise in the supernatant liquor of collection by acetic acid, limit edged stirs, and separates out to protein; The protein that centrifugation is afterwards separated out, clear water washed protein, puts into the baking oven inner drying of 50 DEG C, namely obtains chlorella protein powder;
(3) getting 85g chlorella protein powder joins in the soluble tartrate solution of 0.1%, and constantly stir after chlorella protein powder fully disperses in adition process, add 10g hexanodioic acid, 1g glutaraldehyde reacts 60 minutes; Add hydroxypropylated starch 18g again, be heated to 60 DEG C, be incubated 30 minutes.After having reacted, vacuum lyophilization obtains modification chlorella albumen/starch.
(4) after modification chlorella albumen/starch obtained for step (3) and 20g glycerine, 10g thiodiglycol, 3g glycerin fatty acid ester fully being mixed, mixture is placed in the flat plate mold of vulcanizing press, through hot pressing, coldmoulding process, obtain the degradable plastics being main component with chlorella albumen.
In described step (4), hot pressing condition is: temperature 150 DEG C, pressure 15MPa, 15 minutes time; The condition of colding pressing is: temperature 20 DEG C, and pressure 15MPa colds pressing 15 minutes time.
Claims (9)
1. the degradable plastics containing algae albumen, is characterized in that the parts by weight of main raw material and each raw material are: micro-algae protein powder 80-100 part, starch 0-20 part, properties-correcting agent 2-10 part, softening agent 10-30 part, tensio-active agent 1-10 part.
2., according to claim 1 containing the degradable plastics of algae albumen, it is characterized in that the raw material of described algae protein powder to be selected from Microcystis aeruginosa, anabena, spirulina, artrospira spirulina, plan Anabaena, chamber ball algae, tip algae, the algae that quivers, sheet algae, Xi Zao, joint ball algae, chlorella one or more.
3. the degradable plastics according to claim 2 containing algae albumen, is characterized in that the proteinaceous massfraction of raw material of described micro-algae protein powder is not less than 30%.
4. the degradable plastics according to claim 2 containing algae albumen, is characterized in that the proteinaceous massfraction of raw material of described micro-algae protein powder is not less than 40%.
5. the degradable plastics according to claim 1 containing algae albumen, is characterized in that described starch is native starch or treated starch.
6., according to claim 5 containing the degradable plastics of algae albumen, it is characterized in that described treated starch is one or more in Sumstar 190, starch acetate, hydroxypropylated starch, hydroxyethylamyle, carboxymethyl starch, propyloic starch.
7., according to claim 1 containing the degradable plastics of algae albumen, it is characterized in that described properties-correcting agent is one or more in maleic anhydride, succinyl oxide, diacetyl oxide, citric acid, hexanodioic acid; Described softening agent is one or more in ethylene glycol, thiodiglycol, glycerol, sorbyl alcohol, thiodiglycol, methane amide, hexanolactam, glyceryl monoacetate, glyceryl diacetate, triacetin; Described tensio-active agent is one or more in propylene glycol fatty acid ester, glycerol fatty acid ester, glycerol-fatty acid diester, sucrose fatty ester, Span, sorbyl alcohol macrogol ester.
8. a preparation method for the degradable plastics containing algae albumen described in claim 1, is characterized in that concrete steps are as follows:
(1) fresh micro-algae is chosen, microalgae powder end is made after oven dry, pulverizing, adding the 10-15 times of mass concentration to microalgae powder quality is the sodium hydroxide solution of 0.25%-0.75%, mixing, carry out high pressure homogenization broken wall 3-5 time under 30-90MPa pressure, obtain microalgae wall breaking liquid, isothermal holding 20-60 minute at 30-50 DEG C, filter, collected by centrifugation supernatant liquor;
(2) be added drop-wise in the supernatant liquor of collection by acetic acid, limit edged stirs, and separates out to protein; The protein that centrifugation is afterwards separated out, clear water washed protein, puts into the baking oven inner drying of 50 DEG C, namely obtains micro-algae protein powder;
(3) micro-for 80-100 part algae protein powder being joined 100-200 part massfraction is in the soluble tartrate solution of 0.1%, and limit edged stirs, and after micro-algae protein powder fully disperses, adds properties-correcting agent 2-10 part, is heated to 60 DEG C, reaction 30-60 minute; Add starch 0-20 part again, be heated to 60 DEG C, reaction 30-60 minute; After having reacted, vacuum lyophilization, the obtained micro-algae albumen/starch of modification;
(4) after modification micro-algae albumen/starch 80-100 part that step (3) is obtained fully being mixed with 10-30 part softening agent, 0-10 part tensio-active agent, mixture is placed in the flat plate mold of vulcanizing press, through hot pressing, coldmoulding process, obtain the degradable plastics being main component with algae albumen.
9. preparation method according to claim 8, is characterized in that in described step (4), hot pressing condition is: temperature 150 DEG C, pressure 15MPa, 15 minutes time; The condition of colding pressing is: temperature 20 DEG C, and pressure 15MPa colds pressing 15 minutes time.
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Cited By (8)
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| CN104725727A (en) * | 2015-04-16 | 2015-06-24 | 无锡太湖蓝藻资源应用技术研究院有限公司 | Polypropylene composite containing microalgae and preparing method thereof |
| CN104829873A (en) * | 2015-04-10 | 2015-08-12 | 合肥环照高分子材料厂 | Kelp powder biodegradable plastic and preparation method thereof |
| CN105001489A (en) * | 2015-07-10 | 2015-10-28 | 无锡太湖蓝藻资源应用技术研究院有限公司 | Bio-based polyolefin composite material and preparation method therefor |
| CN105001971A (en) * | 2015-06-26 | 2015-10-28 | 新奥科技发展有限公司 | Two-step production method for microalgae bio-oil |
| CN105038167A (en) * | 2015-08-26 | 2015-11-11 | 无锡太湖蓝藻资源应用技术研究院有限公司 | Algae protein/polylactic acid (PLA) biodegradable blending material and preparation method thereof |
| CN105330905A (en) * | 2015-11-03 | 2016-02-17 | 周福海 | Method for microwave preparation of alga plastics |
| CN105907066A (en) * | 2016-07-01 | 2016-08-31 | 铜陵方正塑业科技有限公司 | Blue alga based compound biological plastic with nano-calcium nutrient enriched and preparation method of biological plastic |
| CN114467655A (en) * | 2022-02-22 | 2022-05-13 | 优奈尔生物科技有限公司 | Cultivation method for anti-cracking watermelons |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104829873A (en) * | 2015-04-10 | 2015-08-12 | 合肥环照高分子材料厂 | Kelp powder biodegradable plastic and preparation method thereof |
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| CN114467655A (en) * | 2022-02-22 | 2022-05-13 | 优奈尔生物科技有限公司 | Cultivation method for anti-cracking watermelons |
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