CN104610577A - Method for preparing biomass plastics from green walnut husks - Google Patents
Method for preparing biomass plastics from green walnut husks Download PDFInfo
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- CN104610577A CN104610577A CN201510030015.7A CN201510030015A CN104610577A CN 104610577 A CN104610577 A CN 104610577A CN 201510030015 A CN201510030015 A CN 201510030015A CN 104610577 A CN104610577 A CN 104610577A
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- exocarpium juglandis
- juglandis immaturus
- biomass plastics
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- immaturus
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Abstract
The invention provides a method for preparing biomass plastics from green walnut husks. The method is characterized by comprising steps as follows: 1, a green walnut husk pretreatment step: the green walnut husks are naturally air-dried, the air-dried green walnut husks are cut into particles by a crusher, the grain size of each particle is 0.1-0.5 cm, one of an acidic chemical reagent and an alkali chemical reagent is added to the particles, filtering is performed after sufficient reaction, and pretreated green walnut husk particles are obtained; 2, an organic matter extraction step: an Na2CO3 solution with the concentration of 0.5% is added to the green walnut husk particles, the mixed solution is dialyzed by a plant membrane after sufficient reaction, and organic matters extracted from the green walnut husk particles are obtained; 3, an organic matter denaturing treatment step: the organic matters are added to hydrochloric acid and heated to 90-110 DEG C, the mixture is stirred simultaneously for 30 min, and a denatured organic aqueous solution is obtained; 4, a biomass plastic preparation step: the organic aqueous solution is heated to 240 DEG C, so that moisture is evaporated, and the biomass plastics are obtained.
Description
Technical scheme
The present invention relates to the preparation method of biomass plastics, particularly a kind of agricultural waste Exocarpium Juglandis Immaturus that adopts is to prepare the method for biomass plastics.
Background technology
Walnut is very popular in the world by feat of abundant nutritive value and good brain strengthening function, with almond, cashew nut together with fibert, is listed as the large nut in the world four.Walnut is planted in China long history, and as far back as Western Han Dynastry period, walnut just introduces China by Zhang Qian from the Western Regions.At present, walnut concentrates on the ground such as Shanxi, Shaanxi, Gansu, Hebei, Sichuan and Yunnan in the main place of production of China, and total cultivated area reaches 66.7 ten thousand hectares, and dry walnut annual production reaches 500,000 tons.
Exocarpium Juglandis Immaturus is remaining Cortex walnut and walnut pulp after walnut removes fruit stone.In the plant development process of walnut, the Exocarpium Juglandis Immaturus of enormous amount can be produced, calculate with every three jin of wet walnut outputs one jin of dry walnut (fruit stone), annual large appointment generation 1,000,000 tons of Exocarpium Juglandis Immaturus.These Exocarpium Juglandis Immaturus are mostly by as agricultural waste, and emergency burial or burning disposal, not only cause environmental pollution, is also the serious waste to valuable biomass.
The states such as America and Europe and Brazil have carried out long-term research to the renewable recycle of biomass waste, contain multiple fields such as the animal-feed from bioenergy to biorefinery, biological plastics and pharmaceutical products.But Wood Adhesives from Biomass is biological plastics technology refine as new bio in subscience, be still in conceptual phase in the whole world at present, there is no the mature technology being converted into biomass plastics about Exocarpium Juglandis Immaturus both at home and abroad.
Summary of the invention
The present invention be directed to that the problems referred to above carry out, object is to provide a kind of method adopting Exocarpium Juglandis Immaturus to prepare biomass plastics, is used to the organic substance of Exocarpium Juglandis Immaturus.
The present invention for achieving the above object, have employed following technical scheme:
< scheme one >
The invention provides a kind of method adopting Exocarpium Juglandis Immaturus to prepare biomass plastics, it is characterized in that, comprise the following steps: the pre-treatment step of Exocarpium Juglandis Immaturus, by Exocarpium Juglandis Immaturus natural air drying, adopt pulverizer that the Exocarpium Juglandis Immaturus after air-dry is cut into the particle that particle diameter is 0.1 ~ 0.5cm, then add in acidic chemical reagent and alkali electroless reagent in this particle any one, fully filter after reaction, obtain pretreated Exocarpium Juglandis Immaturus particle; Organic extraction step, adds the Na that concentration is 0.5% in Exocarpium Juglandis Immaturus particle
2cO
3solution, fully adopts plant membrane to carry out dialysis to mixing solutions, obtains the organism extracted from Exocarpium Juglandis Immaturus particle after reaction; Organism denaturing treatment step, adds organism in hydrochloric acid, is heated to 90 ~ 110 DEG C, stirs simultaneously, keeps 30min, obtains the organic aqueous solution of sex change; Biomass plastics preparation process, is heated to 240 DEG C by organic aqueous solution, moisture is evaporated, and obtains biomass plastics.
Further, employing Exocarpium Juglandis Immaturus provided by the present invention prepares the method for biomass plastics, can also have such feature: wherein, and acidic chemical reagent is ammoniacal liquor, and the concentration of this ammoniacal liquor is 1 ~ 10%.
In addition, employing Exocarpium Juglandis Immaturus provided by the present invention prepares the method for biomass plastics, can also have such feature: wherein, and alkali electroless reagent is NaOH solution, and the concentration of this NaOH solution is 0.1 ~ 1mol/L.
< scheme two >
The present invention also provides a kind of method adopting Exocarpium Juglandis Immaturus to prepare biomass plastics, it is characterized in that, comprise the following steps: the pre-treatment step of Exocarpium Juglandis Immaturus, Exocarpium Juglandis Immaturus is put into gas explosion device, Steam explosion treatment is carried out to Exocarpium Juglandis Immaturus, treatment time is 10 ~ 20min, obtains pretreated Exocarpium Juglandis Immaturus; Organic extraction step, adds Na in pretreated Exocarpium Juglandis Immaturus
2cO
3solution, fully adopts plant membrane to carry out dialysis to mixing solutions, obtains the organism extracted from Exocarpium Juglandis Immaturus particle after reaction; Organism denaturing treatment step, adds organism in hydrochloric acid, is heated to 90 ~ 110 DEG C, stirs simultaneously, keeps 30min, obtains the organic aqueous solution of sex change; Biomass plastics preparation process, is heated to 240 DEG C by organic aqueous solution, moisture is evaporated, and obtains biomass plastics.
Further, employing Exocarpium Juglandis Immaturus provided by the present invention prepares the method for biomass plastics, can also have such feature: wherein, and the temperature of Steam explosion treatment is 210 DEG C.
The effect of invention and effect
The method of biomass plastics is prepared according to employing Exocarpium Juglandis Immaturus provided by the present invention, because carry out physics, chemical treatment to Exocarpium Juglandis Immaturus, obtain the organic superpolymer such as carbohydrate or protein, carry out again drying namely obtaining biomass plastics, therefore the method is easy and simple to handle, can turn waste into wealth, organism in Exocarpium Juglandis Immaturus is used, agricultural waste Exocarpium Juglandis Immaturus is converted into widely used plastics, and biomass plastics are as microorganism degradable plastics, existing chemical industry synthetic plastics can be replaced, thus greatly alleviate environmental pollution.
Embodiment
Below the method that employing Exocarpium Juglandis Immaturus provided by the present invention prepares biomass plastics is elaborated.
< embodiment one >
In the present embodiment, the method adopting Exocarpium Juglandis Immaturus to prepare biomass plastics comprises the following steps:
Step one, the pre-treatment of Exocarpium Juglandis Immaturus.By Exocarpium Juglandis Immaturus natural air drying, then the Exocarpium Juglandis Immaturus after air-dry is cut into by pulverizer the blocky-shaped particle that particle diameter is 0.1 ~ 0.5cm.Then in these blocky-shaped particles, add concentration lower than the ammoniacal liquor of 10%, in the organic situation not damaging Exocarpium Juglandis Immaturus, Exocarpium Juglandis Immaturus is softened and the xylogen of degrading wherein, contribute to the process of subsequent step.
Step 2, organic purification.Still containing being much unfavorable for the impurity generating biomass plastics in pretreated Exocarpium Juglandis Immaturus, so will purify to organism such as the carbohydrate in Exocarpium Juglandis Immaturus and protein, removing detrimental impurity wherein.The Na of 0.5% is added in pretreated Exocarpium Juglandis Immaturus particle
2cO
3solution, fully adopts plant membrane to organism and Na after reaction
2cO
3the reaction soln of solution carries out dialysis process, obtains the organism of purifying.The chemical reagent of strong acid or highly basic can not be used, in order to avoid damage organic components in purification process.
Step 3, organic denaturing treatment.In the organism that step 2 extracts, add hydrochloric acid, be heated to 90 ~ 110 DEG C, insulation 30min, stir solution, stir speed (S.S.) is 75r/min simultaneously.This process can make organic chemical attribute change, and original structure is opened and formed new membrane structure.
Step 4, the preparation of biomass plastics.The organic aqueous solution that what step 3 obtained is after sex change, dries it, moisture is evaporated, can obtain biomass plastics at 240 DEG C.Bake out temperature can affect the quality of the biomass plastics obtained, too high or too low for temperature, and the ductility of obtained biomass plastics is all poor.
< embodiment two >
In the present embodiment, the method adopting Exocarpium Juglandis Immaturus to prepare biomass plastics comprises the following steps:
Step one, the pre-treatment of Exocarpium Juglandis Immaturus.Exocarpium Juglandis Immaturus is put into gas explosion device, at 210 DEG C, carry out Steam explosion treatment, the treatment time is 10 ~ 20min.Thus the plant structure in destruction Exocarpium Juglandis Immaturus, a large amount of lignin degrading.
Then adopt the step identical with the step 2 ~ step 4 of embodiment one to carry out organic purification, denaturing treatment and oven dry to pretreated Exocarpium Juglandis Immaturus, obtain biomass plastics.
In addition, the biomass plastics rich in proteins amino acid that Exocarpium Juglandis Immaturus is prepared into and high polymerization sugar, be conducive to bacterial reproduction, the corruption so biomass plastics may go mouldy, and affects its use as plastics.Especially for the plastics of wrap food, the safety and health request that demand fulfillment is higher.Therefore, in the preparation process of biomass plastics, want test organisms matter plastics whether to there is corruption of going mouldy, if existed, must take measures to eliminate corrupt impact of going mouldy in time.
The effect of embodiment and effect
Prepare the method for biomass plastics according to the employing Exocarpium Juglandis Immaturus of embodiment one and embodiment two, because carry out the pre-treatment of physics, chemistry or High Temperature High Pressure to Exocarpium Juglandis Immaturus, by the lignin degradation in Exocarpium Juglandis Immaturus, destroy its plant structure, then adopt Na
2cO
3organism in Exocarpium Juglandis Immaturus extracts by solution and dialysis, to add after hydrochloric acid soln at high temperature denaturing treatment, again the moisture of organic aqueous solution is dried and can obtain biomass plastics, therefore this preparation method can carry out regeneration to the organism in Exocarpium Juglandis Immaturus, reduces agricultural waste and the wasting of resources; And biomass plastics are easily degraded, replace chemical industry synthetic plastics, effectively can reduce environmental pollution.
Certainly, employing Exocarpium Juglandis Immaturus provided by the present invention prepares the method for biomass plastics, is not merely defined in the content described in above embodiment.These are only the present invention conceive under basic explanation, and according to any equivalent transformation that technical scheme of the present invention is done, all should protection scope of the present invention be belonged to.
In addition, in embodiment one, employing concentration carries out pre-treatment lower than the ammoniacal liquor of 10% to Exocarpium Juglandis Immaturus, destroy its plant structure, lignin degrading, can also adopt concentration to be that the NaOH solution of 0.1 ~ 1mol/L carries out pre-treatment to Exocarpium Juglandis Immaturus, also can reach identical effect.
Claims (5)
1. adopt Exocarpium Juglandis Immaturus to prepare a method for biomass plastics, it is characterized in that, comprise the following steps:
The pre-treatment step of Exocarpium Juglandis Immaturus, by Exocarpium Juglandis Immaturus natural air drying, adopt pulverizer that the described Exocarpium Juglandis Immaturus after air-dry is cut into the particle that particle diameter is 0.1 ~ 0.5cm, then add in acidic chemical reagent and alkali electroless reagent in this particle any one, filter after abundant reaction, obtain pretreated Exocarpium Juglandis Immaturus particle;
Organic extraction step, adds the Na that concentration is 0.5% in described Exocarpium Juglandis Immaturus particle
2cO
3solution, fully adopts plant membrane to carry out dialysis to mixing solutions, obtains the organism extracted from described Exocarpium Juglandis Immaturus particle after reaction;
Organism denaturing treatment step, adds in hydrochloric acid by described organism, is heated to 90 ~ 110 DEG C, stirs simultaneously, keeps 30min, obtains the organic aqueous solution of sex change;
Biomass plastics preparation process, is heated to 240 DEG C by described organic aqueous solution, and moisture is evaporated, and obtains biomass plastics.
2. Exocarpium Juglandis Immaturus according to claim 1 prepares the method for biomass plastics, it is characterized in that:
Wherein, described acidic chemical reagent is ammoniacal liquor, and the concentration of this ammoniacal liquor is 1 ~ 10%.
3. Exocarpium Juglandis Immaturus according to claim 1 prepares the method for biomass plastics, it is characterized in that:
Wherein, described alkali electroless reagent is NaOH solution, and the concentration of this NaOH solution is 0.1 ~ 1mol/L.
4. adopt Exocarpium Juglandis Immaturus to prepare a method for biomass plastics, it is characterized in that, comprise the following steps:
The pre-treatment step of Exocarpium Juglandis Immaturus, puts into gas explosion device by Exocarpium Juglandis Immaturus, carry out Steam explosion treatment to described Exocarpium Juglandis Immaturus, and the treatment time is 10 ~ 20min, obtains pretreated Exocarpium Juglandis Immaturus;
Organic extraction step, adds Na in described pretreated Exocarpium Juglandis Immaturus
2cO
3solution, fully adopts plant membrane to carry out dialysis to mixing solutions, obtains the organism extracted from described Exocarpium Juglandis Immaturus particle after reaction;
Organism denaturing treatment step, adds in hydrochloric acid by described organism, is heated to 90 ~ 110 DEG C, stirs simultaneously, keeps 30min, obtains the organic aqueous solution of sex change;
Biomass plastics preparation process, is heated to 240 DEG C by described organic aqueous solution, and moisture is evaporated, and obtains biomass plastics.
5. employing Exocarpium Juglandis Immaturus according to claim 4 prepares the method for biomass plastics, it is characterized in that:
Wherein, the temperature of described Steam explosion treatment is 210 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510030015.7A CN104610577B (en) | 2015-01-21 | 2015-01-21 | Use the method that Exocarpium Juglandis Immaturus prepares living beings plastics |
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| CN201510030015.7A CN104610577B (en) | 2015-01-21 | 2015-01-21 | Use the method that Exocarpium Juglandis Immaturus prepares living beings plastics |
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| CN104610577A true CN104610577A (en) | 2015-05-13 |
| CN104610577B CN104610577B (en) | 2016-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733297A (en) * | 2016-01-29 | 2016-07-06 | 山西塔尔节能科技有限公司 | Extraction method of plant color paste |
Citations (4)
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| CN102875852A (en) * | 2012-10-11 | 2013-01-16 | 武汉华丽环保科技有限公司 | Biomass-plastic and preparation method thereof |
| CN103773054A (en) * | 2013-12-26 | 2014-05-07 | 南京林业大学 | Preparation method of wood fiber bio-based plastic |
| CN103788418A (en) * | 2014-01-15 | 2014-05-14 | 南京林业大学 | Method for preparing biological-based plastics by using wood fibers as raw material |
| WO2014120417A2 (en) * | 2013-01-31 | 2014-08-07 | Alphagem Bio Inc. | Composition of biodegradable bio-plastic material and using the same to mark consumable products |
-
2015
- 2015-01-21 CN CN201510030015.7A patent/CN104610577B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875852A (en) * | 2012-10-11 | 2013-01-16 | 武汉华丽环保科技有限公司 | Biomass-plastic and preparation method thereof |
| WO2014120417A2 (en) * | 2013-01-31 | 2014-08-07 | Alphagem Bio Inc. | Composition of biodegradable bio-plastic material and using the same to mark consumable products |
| CN103773054A (en) * | 2013-12-26 | 2014-05-07 | 南京林业大学 | Preparation method of wood fiber bio-based plastic |
| CN103788418A (en) * | 2014-01-15 | 2014-05-14 | 南京林业大学 | Method for preparing biological-based plastics by using wood fibers as raw material |
Non-Patent Citations (1)
| Title |
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| 刘艳蕊等: ""核桃青皮中多糖的现状分析"", 《辽宁化工》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733297A (en) * | 2016-01-29 | 2016-07-06 | 山西塔尔节能科技有限公司 | Extraction method of plant color paste |
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