CN110724368A - Biodegradable fog-dissipation type non-drop agricultural plastic film and preparation method thereof - Google Patents
Biodegradable fog-dissipation type non-drop agricultural plastic film and preparation method thereof Download PDFInfo
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- CN110724368A CN110724368A CN201810779849.1A CN201810779849A CN110724368A CN 110724368 A CN110724368 A CN 110724368A CN 201810779849 A CN201810779849 A CN 201810779849A CN 110724368 A CN110724368 A CN 110724368A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/02—Cellulose; Modified cellulose
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/04—Oxygen-containing compounds
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Abstract
The invention provides a biodegradable fog-dispersing type agricultural plastic film without drops, which comprises the following components in parts by weight: 80-110 parts of polybutylene succinate (PBS), 35-50 parts of dioctyl phthalate, 25-30 parts of starch, 20-30 parts of cellulose, 3-4 parts of dripless, 2-3 parts of coupling agent, 2-3 parts of antioxidant, 7-9 parts of plasticizer and 0.1-0.25 part of fog dispersal agent. The method comprises the steps of adding polybutylene succinate (PBS), dioctyl phthalate, starch, cellulose, a non-dropping agent, a coupling agent, an antioxidant, a plasticizer and a defogging agent into a high-speed mixer, uniformly stirring, putting the uniformly mixed raw materials into a double-screw extruder, mixing, melting, extruding, cooling and then granulating to obtain biodegradable defogging type non-dropping resin particles, and putting the resin particles obtained in the steps into a film blowing machine to prepare the film. Compared with the prior art, the film can be completely biodegraded, white pollution is reduced, and an anti-fog effect can be achieved on the basis.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a biodegradable fog-dissipation type non-drop agricultural plastic film and a preparation method thereof.
Background
At present, the demand of vast rural areas in China on agricultural plastic films is continuously increased, the agricultural plastic residual films are difficult to clean and recover along with the continuous increase of the using amount, the residual amount of the plastic agricultural mulching films in soil is increased year by year, serious negative effects are brought to agricultural ecological environment and human health, and the agricultural sustainable development is seriously threatened. The serious harm of the agricultural plastic residual film is mainly shown in the following steps: 1. influence the physical properties of the soil and reduce the soil fertility. 2. Affecting the growth and development of crops and causing the reduction of yield. 3. Is harmful to human health. Causing a large amount of white contamination.
White pollution hazard:
1. visual pollution
The waste plastic packaging objects scattered beside cities, tourist areas, water bodies and roads bring bad stimulation to the vision of people, influence the integral aesthetic feeling of cities and scenic spots, and destroy the appearance and landscape of the cities, thereby causing 'visual pollution'.
2. Potential hazard
The waste plastic packing materials are difficult to degrade after entering the environment, thereby causing long-term and deep ecological environment problems.
Firstly, the waste plastic wrappage is mixed in soil to influence crops to absorb nutrients and moisture, so that the yield of the crops is reduced;
second, the waste plastic packaging discarded on land or in water is ingested by the animal as food, resulting in animal death (which occurs in zoos, pastures and oceans);
thirdly, the waste plastic packages mixed in the domestic garbage are difficult to treat: land will be occupied for a long time in landfill treatment, the domestic garbage mixed with plastics is not suitable for composting treatment, and the sorted waste plastics are difficult to recycle due to the fact that the quality cannot be guaranteed.
At present, people reflect the problem of 'visual pollution', but most people are still lack of understanding about long-term and deep 'potential harm' of waste plastic packages.
Specifically, the following items can be mentioned:
first, the encroachment of the land is excessive. The plastic garbage can stay in nature for a long time, generally 200-400 years, and some can be 500 years.
Second, polluted air. Plastics, paper dust and dust fly with the wind.
And thirdly, polluting the water body. Plastic bottles and lunch boxes floating on rivers and sea water surfaces, plastic bags, bread paper and the like hung on branches above the water surfaces not only cause environmental pollution, but also can injure health if animals eat white garbage by mistake, and even can be alive and starved because the animals cannot digest in digestive tracts.
And fourthly, hidden danger of fire. White garbage is almost all combustible, combustible gas such as methane and the like can be generated in the natural stacking process, fire accidents easily caused by open fire or spontaneous combustion are continuously generated, and great loss is often caused.
Fifthly, after the waste plastic packing materials enter the environment, the long-term deep ecological environment problem is caused because the waste plastic packing materials are difficult to degrade. Firstly, the waste plastic wrappage is mixed in soil to influence crops to absorb nutrients and moisture, so that the yield of the crops is reduced; secondly, if the livestock eats the plastic film, digestive tract diseases and even death of the livestock can be caused.
Sixth, because the plastic film density is small, bulky, it can fill the ground very fast, reduce the ability to dispose rubbish of landfill site; moreover, the ground of the site after landfill is soft, so harmful substances such as bacteria, viruses and the like in the garbage easily permeate into the ground to pollute the underground water and endanger the surrounding environment.
For the above reasons, biodegradable agricultural films are being widely popularized in China at present. However, the biodegradable agricultural film on the market generally has single function and has no fog dispersal effect, so that fog in the greenhouse is large, the negative influence of the fog on the greenhouse extends through the whole growth process of crops, and the negative influence influences influence the temperature, humidity, illumination and other conditions in the greenhouse, so that the germination of crop seeds is influenced in the germination stage, and the seedling is poor in development; influencing the growth and development of crops in the growth and development stage; in the mature period, the yield and the quality of crops are influenced, and the price of agricultural products fluctuates irregularly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a preparation method of a biodegradable fog-dissipation agricultural non-drop film, the film is prepared by taking a biodegradable material as a main component and an additive as an auxiliary component, the fog-dissipation non-drop film has a fog-dissipation non-drop effect, the proportion of the components of the film is crucial, the biodegradable fog-dissipation agricultural non-drop film prepared by the formula has high biodegradability and short degradation time, the degradation rate can reach 99.2 percent within 3 months, the good fog-dissipation non-drop effect can be achieved, the non-drop effect is achieved, and the good fog-dissipation effect is achieved.
In order to achieve the purpose, the invention adopts the technical scheme that: a biodegradable fog-dispersing type non-drop agricultural plastic film comprises the following components in parts by mass: 80-110 parts of polybutylene succinate (PBS), 35-50 parts of dioctyl phthalate, 25-30 parts of starch, 20-30 parts of cellulose, 3-4 parts of dripless, 2-3 parts of coupling agent, 2-3 parts of antioxidant, 7-9 parts of plasticizer and 0.1-0.25 part of fog dispersal agent.
The coupling agent is a silane coupling agent.
The antioxidant is antioxidant 164.
The mist eliminating agent is xylitol ester or hard resin acid monoglyceride.
The starch is one of corn starch, wheat starch, yam starch and potato starch.
The plasticizer is epoxidized soybean oil.
A biodegradable fog-dispersing agricultural plastic film without dropping is prepared from polybutylene succinate (PBS) 85-105 weight portions, dioctyl phthalate 40-47 weight portions, starch 26-29 weight portions, cellulose 23-27 weight portions, non-dropping agent 3.2 weight portions, coupling agent 2.3 weight portions, antioxidant 2.1-2.5 weight portions, plasticizer 7.3-8.1 weight portions, and fog-dispersing agent 0.1-0.16 weight portion.
The biodegradable fog-dispersing type agricultural plastic film without drops and the preparation method thereof are as follows: adding polybutylene succinate (PBS), dioctyl phthalate, starch, cellulose, a non-dropping agent, a coupling agent, an antioxidant, a plasticizer and a defogging agent into a high-speed mixer, uniformly stirring, putting the uniformly mixed raw materials into a double-screw extruder, mixing, melting, extruding, cooling and then granulating to obtain biodegradable defogging type non-dropping resin particles, and putting the biodegradable defogging type non-dropping resin particles obtained in the step into a film blowing machine to prepare a film.
The poly (butylene succinate) (PBS) is synthesized by condensation polymerization of succinic acid and butanediol, the resin is milk white, odorless and tasteless, can be easily decomposed and metabolized by enzymes in various microorganisms or animals and plants in the nature, and is finally decomposed into carbon dioxide and water, the poly (butylene succinate) (PBS) has good biocompatibility and bioabsorbability, and compared with biodegradable plastics such as polycaprolactone, polylactic acid and the like, the poly (butylene succinate) (PBS) has the advantages of relatively low price, excellent mechanical property, good heat resistance and heat deformation temperature close to 100 ℃. On the basis, the dioctyl phthalate is added, so that various performances of the agricultural plastic film are further improved, and in the research process, the biological degradation efficiency of the film is greatly improved after the cellulose is added, so that the time required by complete degradation is effectively shortened. The fog dispersal agent and the dripless agent are added to increase the fog dispersal and dripless effect of the agricultural film.
Has the advantages that: compared with the prior art, the film can be completely biodegraded, white pollution is reduced, and water on the surface of the film can flow downwards into soil through the surface of the film, so that the water in air in the shed is reduced, and an anti-fog effect is achieved. The production method has simple process, adopts a one-step method to mix various raw materials, and carries out granulation through a double-screw extruder, so that the prepared resin can be processed into a film finished product on conventional plastic forming equipment, thereby reducing a plurality of links in the processing procedure and improving the economic benefit.
Detailed Description
Example 1
A biodegradable fog-dispersing type non-drop agricultural plastic film comprises the following components in parts by weight: 90 parts of polybutylene succinate (PBS), 42 parts of dioctyl phthalate, 28 parts of starch, 26 parts of cellulose, 3.3 parts of dripless, 2.5 parts of coupling agent, 2.2 parts of antioxidant, 8 parts of plasticizer and 0.16 part of fog dispersal agent.
The biodegradable fog-dissipation type non-drop agricultural plastic film is prepared by adding polybutylene succinate (PBS), dioctyl phthalate, starch, cellulose, a non-drop agent, a coupling agent, an antioxidant, a plasticizer and a fog-dissipation agent into a high-speed mixer, uniformly stirring, putting the uniformly mixed raw materials into a double-screw extruder, mixing, melting, extruding, cooling and then granulating to obtain biodegradable fog-dissipation type non-drop resin particles, and putting the biodegradable fog-dissipation type non-drop resin particles obtained in the step into a film blowing machine to prepare the film.
Example 2
A biodegradable fog-dispersing type non-drop agricultural plastic film comprises the following components in parts by weight: 96 parts of polybutylene succinate (PBS), 45 parts of dioctyl phthalate, 27 parts of starch, 23 parts of cellulose, 3.5 parts of dripless, 2.2 parts of coupling agent, 2.7 parts of antioxidant, 7.3 parts of plasticizer and 0.21 part of fog dispersal agent.
The biodegradable fog-dissipation type non-drop agricultural plastic film is prepared by adding polybutylene succinate (PBS), dioctyl phthalate, starch, cellulose, a non-drop agent, a coupling agent, an antioxidant, a plasticizer and a fog-dissipation agent into a high-speed mixer, uniformly stirring, putting the uniformly mixed raw materials into a double-screw extruder, mixing, melting, extruding, cooling and then granulating to obtain biodegradable fog-dissipation type non-drop resin particles, and putting the biodegradable fog-dissipation type non-drop resin particles obtained in the step into a film blowing machine to prepare the film.
Example 3
A biodegradable fog-dispersing type non-drop agricultural plastic film comprises the following components in parts by weight: 103 parts of polybutylene succinate (PBS), 38 parts of dioctyl phthalate, 30 parts of starch, 21 parts of cellulose, 3.4 parts of dripless, 2.6 parts of coupling agent, 2.7 parts of antioxidant, 8.2 parts of plasticizer and 0.23 part of fog dispersal agent.
The biodegradable fog-dissipation type non-drop agricultural plastic film is prepared by adding polybutylene succinate (PBS), dioctyl phthalate, starch, cellulose, a non-drop agent, a coupling agent, an antioxidant, a plasticizer and a fog-dissipation agent into a high-speed mixer, uniformly stirring, putting the uniformly mixed raw materials into a double-screw extruder, mixing, melting, extruding, cooling and then granulating to obtain biodegradable fog-dissipation type non-drop resin particles, and putting the biodegradable fog-dissipation type non-drop resin particles obtained in the step into a film blowing machine to prepare the film.
Claims (10)
1. A biodegradable fog-dispersing type non-drop agricultural plastic film is characterized by comprising the following components in parts by mass: 80-110 parts of polybutylene succinate (PBS), 35-50 parts of dioctyl phthalate, 25-30 parts of starch, 20-30 parts of cellulose, 3-4 parts of dripless, 2-3 parts of coupling agent, 2-3 parts of antioxidant, 7-9 parts of plasticizer and 0.1-0.25 part of fog dispersal agent.
2. A biodegradable fog-dispersing type non-drop agricultural plastic film is characterized by comprising the following components in parts by mass: 85-105 parts of polybutylene succinate (PBS), 38-45 parts of dioctyl phthalate, 26-30 parts of starch, 23-28 parts of cellulose, 3.2-3.6 parts of dripless, 2.1-2.7 parts of coupling agent, 2.3-3 parts of antioxidant, 7.5-8.3 parts of plasticizer and 0.1-0.23 part of fog dispersal agent.
3. A biodegradable fog-dispersing type non-drop agricultural plastic film is characterized by comprising the following components in parts by mass: 82-105 parts of polybutylene succinate (PBS), 42-48 parts of dioctyl phthalate, 25-29 parts of starch, 20-23 parts of cellulose, 3.2-4 parts of dripless, 2.2-2.5 parts of coupling agent, 2.6-2.9 parts of antioxidant, 7.8-8.5 parts of plasticizer and 0.18-0.23 part of fog dispersal agent.
4. A biodegradable fog-dispersing type non-drop agricultural plastic film is characterized by comprising the following components in parts by mass: 95-100 parts of polybutylene succinate (PBS), 37-45 parts of dioctyl phthalate, 25-28 parts of starch, 24-30 parts of cellulose, 3.1-3.3 parts of dripless, 2.2-2.5 parts of coupling agent, 2.1-2.8 parts of antioxidant, 8-8 and 6 parts of plasticizer and 0.18-0.22 part of fog suppressor.
5. The biodegradable fog-dispersal droplet-free agricultural plastic film as claimed in any one of claims 1 ~ 4, wherein the coupling agent is a silane coupling agent.
6. The biodegradable fog-dispersal droplet-free agricultural plastic film as claimed in any one of claims 1 ~ 4, wherein the antioxidant is antioxidant 164.
7. The biodegradable fog-dissipating non-drip agricultural plastic film according to any one of claim 1 ~ 4, wherein the fog-dissipating agent is xylitol ester or glycerol monoester of hard resin acid.
8. The biodegradable fog-dispersal droplet-free agricultural plastic film as claimed in any one of claims 1 ~ 4, wherein the plasticizer is epoxidized soybean oil.
9. The biodegradable fog-dispersal droplet-free agricultural plastic film as claimed in any one of claims 1 ~ 4, wherein the starch is one of corn starch, wheat starch, yam starch, and potato starch.
10. The method for preparing biodegradable antifogging agricultural plastic film according to claim 1 ~ 4, wherein the biodegradable antifogging agricultural plastic film is prepared by adding polybutylene succinate (PBS), dioctyl phthalate, starch, cellulose, non-dropping agent, coupling agent, antioxidant, plasticizer and antifogging agent into a high-speed mixer, stirring uniformly, mixing the uniformly mixed raw materials in a double-screw extruder, mixing, melting, extruding, cooling and granulating to obtain biodegradable antifogging agricultural plastic film particles, and then placing the biodegradable antifogging agricultural plastic film particles obtained in the above step into a film blowing machine to prepare the biodegradable antifogging agricultural plastic film.
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| CN201810779849.1A CN110724368A (en) | 2018-07-16 | 2018-07-16 | Biodegradable fog-dissipation type non-drop agricultural plastic film and preparation method thereof |
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| CN201810779849.1A CN110724368A (en) | 2018-07-16 | 2018-07-16 | Biodegradable fog-dissipation type non-drop agricultural plastic film and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773622A (en) * | 2021-09-18 | 2021-12-10 | 浙江家乐蜜园艺科技有限公司 | Transparent non-dropping full-biodegradable mulching film and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773622A (en) * | 2021-09-18 | 2021-12-10 | 浙江家乐蜜园艺科技有限公司 | Transparent non-dropping full-biodegradable mulching film and preparation method thereof |
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Application publication date: 20200124 |