CN114479503A - Highland barley vinasse biodegradable material and preparation method and application thereof - Google Patents
Highland barley vinasse biodegradable material and preparation method and application thereof Download PDFInfo
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- CN114479503A CN114479503A CN202111634719.7A CN202111634719A CN114479503A CN 114479503 A CN114479503 A CN 114479503A CN 202111634719 A CN202111634719 A CN 202111634719A CN 114479503 A CN114479503 A CN 114479503A
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L99/00—Compositions of natural macromolecular compounds or of derivatives thereof not provided for in groups C08L89/00 - C08L97/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Wrappers (AREA)
Abstract
The invention relates to the technical field of preparation of biodegradable materials, in particular to a highland barley vinasse biodegradable material and a preparation method and application thereof. The highland barley vinasse biodegradable material is prepared from the following components in parts by mass: 50-70 parts of highland barley vinasse powder subjected to supercritical extraction, 20-40 parts of adhesive, 3-7 parts of waterproof agent and 3-7 parts of reinforcing agent. The invention fully utilizes the waste of the highland barley resource, namely the novel industrial degradable material with good production quality and low cost, to replace the foam plastic degradable material, thereby not only solving the problem of difficult treatment of the waste and changing waste into valuable, but also effectively playing the role of controlling and eliminating white pollution.
Description
Technical Field
The invention relates to the technical field of preparation of biodegradable materials, in particular to a highland barley vinasse biodegradable material and a preparation method and application thereof.
Background
In the packaging material for white spirit, the outer packaging material has been developed from a single paper material into a combination form of paper-plastic combination, paper-wood combination and other materials, and the inner packaging material comprises glass, ceramics, metal, plastics, paper, composite materials and other materials. The plastic materials in the packaging materials have become main materials for packaging white spirit due to the characteristics of low price, convenient processing, suitability for large-scale production and the like, most of the plastic packaging materials are difficult to degrade by the environment even if being buried in weak alkaline or acid environment soil containing a large amount of tiny bacteria for years, and white pollution can be caused, so that the serious environmental pollution problem is caused, and the materials for packaging can be developed towards the full-biodegradable direction in order to accord with the concept of sustainable development. With the development and application of novel ecological packaging materials, the wine packaging material is directly made of natural, abundant-resource, non-toxic, harmless and low-price original ecological materials, low-carbon, degradable and recyclable wine packaging can become the mainstream of the market, and the wine packaging material enters the 'ecological packaging' era.
At present, the full-degradable products applied in a large scale on the market are basically realized based on polylactic acid (PLA), dibasic acid dihydric alcohol copolyester series (PBAT, PBS, PBSA and the like) and composite materials thereof, but the large-scale popularization and application of the full-degradable products are limited due to higher cost and production scale which cannot meet the market demand. Therefore, the natural polymer material based on the agricultural and forestry wastes provides an effective solution for the large-scale preparation, popularization and application of the fully degradable material undoubtedly due to the characteristics of abundant resources, low price, no toxicity and natural degradability. A natural high molecular biodegradable packaging material is prepared from biodegradable substances (such as starch, cellulose, chitosan, lactalbumin, soybean protein, gelatin, polysaccharide protein and lipid substances). Compared with the traditional packaging material, the packaging material can remarkably reduce environmental pollution while ensuring food safety. In addition, the release of beneficial components in the biodegradable packaging material can better ensure the nutrition and flavor of food, and even can delay the food spoilage, thereby prolonging the shelf life.
Distillers grains, a major by-product of the alcohol or brewing industry, are rich in a large amount of nutrients, such as protein, crude fiber, fat, crude starch, minerals, enzymes, and various vitamins. Fermentation enterprises such as various wineries and alcohol production enterprises produce 1 ton of alcohol products and several tons of vinasse every year. At present, most enterprises or individuals can process the vinasse simply and roughly, and the vinasse is basically used as feed or fertilizer for direct sale after being simply dried and even directly buried. However, the abundant nutrients in the distiller's grains are not fully utilized, which not only causes serious waste of resources, but also causes environmental pollution.
Therefore, how to solve the technical problems of difficult degradation of the outer packaging material, environmental pollution and insufficient utilization of the vinasse resource in the prior art and provide a method for preparing the vinasse into the biodegradable material is a problem to be solved by the technical staff in the field.
Disclosure of Invention
The invention aims to provide a highland barley vinasse biodegradable material and a preparation method and application thereof, the invention fully utilizes the waste of highland barley resources, namely a novel industrial degradable material with good production quality and low cost, to replace a foamed plastic degradable material, thereby not only solving the problem of difficult treatment of the waste and changing waste into valuable, but also effectively playing a role in controlling and eliminating white pollution.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a highland barley vinasse biodegradable material which is prepared from the following components in parts by mass: 50-70 parts of highland barley vinasse powder subjected to supercritical extraction, 20-40 parts of adhesive, 3-7 parts of waterproof agent and 3-7 parts of reinforcing agent.
Preferably, the adhesive is polybutylene succinate.
Preferably, the water repellent agent is a polysiloxane.
Preferably, the reinforcing agent is one of acrylamide, acryloyloxyethyltrimethyl ammonium chloride and glycidyl methacrylate.
The invention also provides a preparation method of the highland barley vinasse biodegradable material, which comprises the following steps:
(1) drying highland barley distiller's grains, performing supercritical extraction, and sieving to obtain highland barley distiller's grain powder after supercritical extraction;
(3) mixing the highland barley vinasse powder obtained in the step (1), an adhesive, a waterproof agent and an enhancer to obtain a mixture, and melting and blending the mixture.
Preferably, the temperature of the supercritical extraction in the step (1) is 35-45 ℃; the pressure of the supercritical extraction is 25-35 MPa; the supercritical extraction time is 1.5-2.5 h.
Preferably, the highland barley vinasse is dried in the step (1) until the water content of the highland barley vinasse is less than or equal to 10 percent.
Preferably, the highland barley wine lees subjected to the supercritical extraction in the step (1) are sieved by a sieve of 80-120 meshes, and the components below the sieve are collected to obtain highland barley wine lees powder subjected to the supercritical extraction.
Preferably, the temperature of the roller before and after the melt blending in the step (2) is 115-135 ℃ independently; the time of melt blending is 1-4 h.
Preferably, melt blending is carried out using an open mill model SK-160.
The invention further provides the application of the highland barley vinasse biodegradable material and the highland barley vinasse biodegradable material prepared by the preparation method of the highland barley vinasse biodegradable material in preparing degradable packaging paper.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a method for producing a novel degradable material by using highland barley vinasse residues, wherein the degradable composite material is prepared by supercritical CO2The extracted residues of highland barley vinasse are taken as raw materials, and are added with adhesiveThe mixture and other additives are premixed, and the premixed material is subjected to melt blending composite modification and then is molded by adopting a certain molding process, so that the product is produced.
2. The material of the invention is derived from food waste highland barley vinasse, the raw material can be recycled and regenerated, compared with other degradable materials, the production cost is lower, the degradation period is shorter, the degradation product can not cause pollution to soil, and in addition, compared with common plastics, the packaging material prepared from the vinasse residue has the advantages of better freshness preservation, difficult oxidation and the like. Meanwhile, the processing technology of the vinasse residues is less, the energy consumption is less, and therefore, the price is lower.
The highland barley vinasse residues are adopted to prepare the degradable packaging material, so that waste can be changed into valuable, the resource consumption can be reduced, the environmental pollution is reduced, and the ecological closed loop with the real meaning can be realized.
3. The biodegradable material is gradually popularized and applied in food packaging materials, a biodegradable and eco-friendly alternative solution is provided for non-degradable materials such as plastics, and the degradable packaging material prepared from highland barley vinasse residues has advantages in the aspects of performance, practicability, degradability, safety and the like. In the aspect of performance, the vinasse residue degradable packaging material can reach the performance of the traditional plastic; in the aspect of practicability, the degradable packaging material has similar application performance and sanitary performance with similar traditional materials; in the aspect of degradability, the highland barley vinasse residue packaging material can be rapidly degraded; is easily favored by the environment in terms of safety, and substances produced or remaining during degradation are not harmful to the environment and do not affect the survival of humans and other organisms.
In addition, the highland barley vinasse residues contain a plurality of bioactive components which can play special roles, and the release of beneficial components in the packaging material can better ensure the nutrition and flavor of the food and prolong the shelf life; for example, bioactive peptides are commonly used to inhibit the growth of pathogenic bacteria, and phenolic compounds contained in natural substances have antibacterial and antioxidant effects. Some active ingredients contained in the lees residue such as phenolic compounds, peptides, etc. also have antibacterial and antioxidant effects.
The highland barley wine packaging material prepared from the highland barley wine lees can further support the highland barley wine, so that the packaging function of the highland barley wine is expanded and extended, the image of the highland barley wine in the heart of a consumer can be improved by utilizing the highland barley wine lees residues, the added value of the highland barley wine is added, the first good feeling of the consumer is obtained, and the consumption desire of the consumer is further stimulated.
4. The highland barley vinasse is used as a byproduct of highland barley white spirit, the main components are from highland barley and distiller's yeast which are wine brewing raw materials, and the highland barley vinasse contains a plurality of bioactive components with special functions, including fat, dietary fiber, phytosterol, beta-glucan, phenols and bioactive peptides, and the compounds can have beneficial effects on metabolism, cardiovascular and gastrointestinal health. Thus using supercritical CO2The extraction technology is used for extracting active ingredients of highland barley vinasse, the highland barley vinasse with low additional value is used as a basis, the highland barley vinasse is applied to industries such as health-care food, medicines, cosmetics and the like, and in addition, residues after supercritical extraction are used for preparing packaging materials, so that the high-value utilization of the highland barley vinasse is promoted.
Detailed Description
The invention provides a highland barley vinasse biodegradable material which is prepared from the following components in parts by mass: 50-70 parts of highland barley vinasse powder subjected to supercritical extraction, 20-40 parts of adhesive, 3-7 parts of waterproof agent and 3-7 parts of reinforcing agent;
the compound is preferably prepared from the following components in parts by mass: 54-66 parts of highland barley vinasse powder subjected to supercritical extraction, 24-36 parts of adhesive, 4-6 parts of waterproof agent and 4-6 parts of reinforcing agent;
the composite material is further preferably prepared from the following components in parts by mass: 58-62 parts of highland barley vinasse powder subjected to supercritical extraction, 28-32 parts of adhesive, 5-6 parts of waterproofing agent and 5-6 parts of reinforcing agent;
more preferably, the composition is prepared from the following components in parts by mass: 60 parts of highland barley vinasse powder subjected to supercritical extraction, 30 parts of adhesive, 5 parts of waterproof agent and 5 parts of reinforcing agent.
In the invention, the adhesive is polybutylene succinate.
In the present invention, the water repellent agent is polysiloxane.
In the invention, the reinforcing agent is one of acrylamide, acryloyloxyethyl trimethyl ammonium chloride and glycidyl methacrylate; preferably acrylamide or acryloyloxyethyltrimethylammonium chloride; further preferred is acrylamide.
The invention also provides a preparation method of the highland barley vinasse biodegradable material, which comprises the following steps:
(1) drying highland barley distiller's grains, performing supercritical extraction, and sieving to obtain highland barley distiller's grain powder subjected to supercritical extraction;
(2) mixing the highland barley vinasse powder obtained in the step (1), an adhesive, a waterproof agent and an enhancer to obtain a mixture, and melting and blending the mixture.
In the invention, the temperature of the supercritical extraction in the step (1) is 35-45 ℃; preferably 37-43 ℃; further preferably 39-41 ℃; more preferably 40 deg.c.
The pressure of the supercritical extraction is 25-35 MPa; preferably 27 to 33 MPa; further preferably 29 to 31 MPa; more preferably 30 MPa.
The supercritical extraction time is 1.5-2.5 h; preferably for 2 hours.
In the invention, the highland barley vinasse is dried in the step (1) until the water content of the highland barley vinasse is less than or equal to 10 percent.
In the invention, the highland barley vinasse subjected to supercritical extraction in the step (1) is sieved by a sieve of 80-120 meshes, and the components under the sieve are collected to obtain highland barley vinasse powder subjected to supercritical extraction; in the invention, the aperture of the sieved screen is preferably 90-110 meshes; further preferably 95-105 meshes; more preferably 100 mesh.
In the invention, the temperature of the roller before and after the melt blending in the step (2) is 115-135 ℃ independently; preferably 119-131 ℃; further preferably 123 to 127 ℃; more preferably 125 deg.c.
In the invention, the time of the melt blending in the step (2) is 1-4 h; preferably 2-3 h; further preferably 2.5 hours. In the present invention, melt blending was carried out using an open mill model SK-160.
The invention further provides the application of the highland barley vinasse biodegradable material and the highland barley vinasse biodegradable material prepared by the preparation method of the highland barley vinasse biodegradable material in preparing degradable packaging paper.
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
The highland barley vinasse biodegradable material is prepared from the following components in parts by mass: 50 parts of highland barley vinasse powder subjected to supercritical extraction, 20 parts of polybutylene succinate, 3 parts of polysiloxane and 3 parts of acryloyloxyethyl trimethyl ammonium chloride;
a preparation method of a highland barley vinasse biodegradable material comprises the following steps:
(1) drying the highland barley distiller's grains until the water content of the highland barley distiller's grains is 6 percent and performing supercritical CO2Extracting, sieving with 80 mesh sieve, and collecting sieved components to obtain supercritical extracted highland barley distiller's grains powder; the temperature of the supercritical extraction is 35 ℃; the pressure of the supercritical extraction is 25 MPa; the time of the supercritical extraction is 1.5 h;
(2) mixing the highland barley vinasse powder obtained in the step (1), poly (butylene succinate), polysiloxane and acryloyloxyethyl trimethyl ammonium chloride to obtain a mixture, and melting and blending the mixture for 1h at 115 ℃ in an SK-160 type open type plastic mixing machine.
Example 2
The highland barley vinasse biodegradable material is prepared from the following components in parts by mass: 70 parts of highland barley vinasse powder subjected to supercritical extraction, 40 parts of polybutylene succinate, 7 parts of polysiloxane and 7 parts of glycidyl methacrylate;
a preparation method of a highland barley vinasse biodegradable material comprises the following steps:
(1) drying highland barley distiller's grains until the water content of the highland barley distiller's grains is 10%, performing supercritical extraction, sieving with a 120-mesh sieve, and collecting the sieved components to obtain highland barley distiller's grains powder after the supercritical extraction; the temperature of the supercritical extraction is 45 ℃; the pressure of the supercritical extraction is 35 MPa; the time of the supercritical extraction is 2.5 h;
(2) mixing the highland barley vinasse powder obtained in the step (1), poly (butylene succinate), polysiloxane and glycidyl methacrylate to obtain a mixture, and melting and blending the mixture for 4 hours at 135 ℃ in an SK-160 type open type plastic mixing machine.
Example 3
The highland barley vinasse biodegradable material is prepared from the following components in parts by mass: 60 parts of highland barley vinasse powder subjected to supercritical extraction, 30 parts of polybutylene succinate, 5 parts of polysiloxane and 5 parts of acrylamide;
a preparation method of a highland barley vinasse biodegradable material comprises the following steps:
(1) drying highland barley distiller's grains until the water content of the highland barley distiller's grains is 8%, performing supercritical extraction, sieving with a 100-mesh sieve, and collecting sieved components to obtain highland barley distiller's grain powder after the supercritical extraction; the temperature of the supercritical extraction is 40 ℃; the pressure of the supercritical extraction is 30 MPa; the supercritical extraction time is 2 hours;
(2) mixing the highland barley vinasse powder obtained in the step (1), poly (butylene succinate), polysiloxane and glycidyl methacrylate to obtain a mixture, and melting and blending the mixture in an SK-160 type open type plastic mixing machine at 125 ℃ for 2.5 h.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The highland barley vinasse biodegradable material is characterized by being prepared from the following components in parts by mass: 50-70 parts of highland barley vinasse powder subjected to supercritical extraction, 20-40 parts of adhesive, 3-7 parts of waterproof agent and 3-7 parts of reinforcing agent.
2. The highland barley wine lees biodegradable material as claimed in claim 1, wherein the adhesive is polybutylene succinate.
3. The highland barley lees biodegradation material according to claim 1 or 2, wherein the water-proofing agent is polysiloxane.
4. The highland barley wine lees biodegradation material of claim 1, wherein the enhancer is one of acrylamide, acryloyloxyethyltrimethyl ammonium chloride and glycidyl methacrylate.
5. The preparation method of the highland barley wine lees biodegradable material as claimed in any one of claims 1 to 4, which is characterized by comprising the following steps:
(1) drying highland barley distiller's grains, performing supercritical extraction, and sieving to obtain highland barley distiller's grain powder after supercritical extraction;
(2) mixing the highland barley vinasse powder obtained in the step (1), an adhesive, a waterproof agent and an enhancer to obtain a mixture, and melting and blending the mixture.
6. The preparation method of the highland barley wine lees biodegradable material according to claim 5, wherein the temperature of the supercritical extraction in the step (1) is 35-45 ℃; the pressure of the supercritical extraction is 25-35 MPa; the supercritical extraction time is 1.5-2.5 h.
7. The method for preparing highland barley wine lees biodegradable material according to claim 5, wherein the drying in step (1) is carried out until the water content of highland barley wine lees is less than or equal to 10%.
8. The preparation method of the highland barley wine lees biodegradable material according to claim 5 or 6, characterized in that, the highland barley wine lees after the supercritical extraction in the step (1) are sieved by a sieve of 80-120 meshes, and the components under the sieve are collected to obtain highland barley wine lees powder after the supercritical extraction.
9. The preparation method of the highland barley wine lees biodegradable material according to claim 5, wherein the roller temperature before and after the melt blending in the step (2) is 115-135 ℃; the time of melt blending is 1-4 h.
10. The application of the highland barley lees biodegradable material of any one of claims 1 to 4 and the highland barley lees biodegradable material prepared by the preparation method of the highland barley lees biodegradable material of any one of claims 5 to 9 in preparing degradable packing paper.
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