CN106117619A - A kind of production technology of degradable agricultural film - Google Patents
A kind of production technology of degradable agricultural film Download PDFInfo
- Publication number
- CN106117619A CN106117619A CN201610470718.6A CN201610470718A CN106117619A CN 106117619 A CN106117619 A CN 106117619A CN 201610470718 A CN201610470718 A CN 201610470718A CN 106117619 A CN106117619 A CN 106117619A
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- China
- Prior art keywords
- production technology
- agricultural film
- degradable agricultural
- mixing
- described step
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/02—Starch; Degradation products thereof, e.g. dextrin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses the production technology of a kind of degradable agricultural film, relate to film for agricultural use production technology field, prepare including raw material, mixed at high speed processes, filling mixing, secondary filling mixes, mixing plastics processing, drying and processing and seven technical processs of packed products, the present invention can keep good tear strength, fracture tensile strength, elongation at break, on the basis of the physical and mechanical propertiess such as impact strength, most material can be degradable by biology, belong to environmentally friendly biomembrane, and add Fructus Capsici powder in the material, can be the most antibacterial, it is worthy to be popularized.
Description
Technical field
The present invention relates to film for agricultural use production technology field, be specifically related to the production technology of a kind of degradable agricultural film.
Background technology
In agricultural production with agricultural mulching cover not only there is fertilizer conservation, insect protected press down grass etc. function, it is also possible to keep soil
Moisture, raising efficiency of water application, improve crop growth environment simultaneously, improve crop yield and agricultural benefit.Agricultural mulching
Create huge since having become as the third-largest means of agricultural production material after agricultural production relaying chemical fertilizer, pesticide, agricultural mulching self-application
Economic benefit and social benefit, it can make the output increased 20-50% of crops, is greatly promoted sending out of China's agricultural
Exhibition.But the white pollution problems that agroecological environment is caused by produced discarded film after a large amount of use agricultural mulchings is the most therewith
Day by day serious, discarded agricultural mulching is typically difficult to reclaim, and its residual accumulation can cause Soil structure to destroy, harden, and soil is saturating
Gas is deteriorated, and impact cultivates, and agricultural mulching the most on the market can only be cut off by physics and places external pest and disease damage, and
Cannot be from mulch film this problem of internal solution.
Summary of the invention
Problem to be solved by this invention is to provide one, and performance is more excellent, assembling quality is higher and production technology is simple
The production technology of degradable agricultural film.
To achieve these goals, the technical scheme that the present invention takes by: a kind of degradable agricultural film provided
Production technology includes following processing step:
(1) raw material prepares: the production raw material (by weight) of this degradable agricultural film includes: corn starch
50-60 part, polyvinyl alcohol 15-25 part, glycerol 13-18 part, carbamide 2-4 part, organo montmorillonite 1-3 part, dry paprika 2-4 part,
Polyvinyl resin 4-8 part；
(2) mixed at high speed processes: added by corn starch in horizontal high-speed mixer, accounts for weight to adding in corn starch
The ratio water of 3%-4%, and it is carried out heat treated, mix duration 30min；
(3) filling mixing: polyvinyl alcohol is added in corn starch, and by low speed mixer mixing 15min-
20min；
(4) secondary filling mixing: is added in the mixture that step (3) is obtained Fructus Capsici powder and polyvinyl resin, and puts into
Stirring 10min-20min in reactor, adding temperature is 80 DEG C-90 DEG C；
(5) mixing plastics processing: the mixture that step (4) obtains is transported in double screw extruder, and add glycerol,
Carbamide and organo montmorillonite, extrusion temperature is 130 DEG C-150 DEG C.
(6) drying and processing: the material of extrusion is pulled into drawing oven, is then carried out laterally in drawing oven respectively
With longitudinal biaxial tension, draft temperature is 90 DEG C-100 DEG C, is drawn into the thin film of 50 μm-70 μ m thick.
(7) packed products: the composite membrane of gained in step (6) is carried out sided corona treatment, rolling film forming, inspection, the most laggard
Row cuts packaging.
Preferably, in described step (1), dry paprika is pulverized by chilli and is formed, and smashing fineness is 60um-900um.
Preferably, in described step (2), mixing temperature is 100 DEG C-140 DEG C.
Preferably, after stirring, reactor temperature being increased to 130-160 DEG C in described step (4), pressure is 0.4-
0.6Mpa。
Preferably, described step (5) carries out air to material after extrusion and be cooled to 30 DEG C-40 DEG C.
Preferably, in described step (6), cross directional stretch multiple is 6-7, longitudinal stretching multiple 6-6.5.
Use technical scheme, the present invention can keep good tear strength, fracture tensile strength, fracture
On the basis of the physical and mechanical properties such as percentage elongation, impact strength, most material can be degradable by biology, belongs to environment
Friendly biomembrane, and add Fructus Capsici powder in the material, can effective antibacterial preparation technology simple, excellent performance, improve
Preventing disease and pest function, can be worthy to be popularized as a kind of outstanding degradable agricultural film.
Accompanying drawing explanation
Fig. 1 is the flow chart of the production technology of a kind of degradable agricultural film of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with
Detailed description of the invention, is expanded on further the present invention.
Embodiment 1:
As it is shown in figure 1, the production technology of a kind of degradable agricultural film of the present embodiment, including following processing step:
(1) raw material prepares: the production raw material (by weight) of this degradable agricultural film includes: corn starch 55
Part, polyvinyl alcohol 20 parts, glycerol 15 parts, 3 parts of carbamide, organo montmorillonite 2 parts, dry paprika 3 parts, polyvinyl resin 6 parts, wherein
Dry paprika is pulverized by chilli and is formed, and smashing fineness is 300um；
(2) mixed at high speed processes: added by corn starch in horizontal high-speed mixer, accounts for weight to adding in corn starch
Water than 3%, and it is carried out heat treated, mix duration 30min, wherein mixing temperature is 100 DEG C；
(3) filling mixing: polyvinyl alcohol is added in corn starch, and by low speed mixer mixing 15min；
(4) secondary filling mixing: is added in the mixture that step (3) is obtained Fructus Capsici powder and polyvinyl resin, and puts into
Stirring 10min in reactor, adding temperature is 80 DEG C, and reactor temperature is wherein increased to after stirring 130, and pressure is 0.4；
(5) mixing plastics processing: the mixture that step (4) obtains is transported in double screw extruder, and add glycerol,
Carbamide and organo montmorillonite, extrusion temperature is 130 DEG C, wherein after extrusion, material is carried out air and is cooled to 30 DEG C.
(6) drying and processing: the material of extrusion is pulled into drawing oven, is then carried out laterally in drawing oven respectively
With longitudinal biaxial tension, draft temperature is 90 DEG C, is drawn into the thin film of 50 μ m thick, and wherein cross directional stretch multiple is 6, longitudinally draws
Stretch multiple 6.
(7) packed products: the composite membrane of gained in step (6) is carried out sided corona treatment, rolling film forming, inspection, the most laggard
Row cuts packaging.
Embodiment 2: remaining is same as in Example 1, difference is the smashing fineness of dry paprika in described step (1)
For 600um, in described step (2), mixing temperature is 120 DEG C, is increased to by reactor temperature in described step (4) after stirring
140 DEG C, pressure is 0.5Mpa, after extrusion, material is carried out air and be cooled to 35 DEG C, in described step (6) in described step (5)
Being drawn into the thin film of 60 μ m thick, cross directional stretch multiple is 6.5, longitudinal stretching multiple 6.
Embodiment 3: remaining is same as in Example 1, difference is the smashing fineness of dry paprika in described step (1)
For 00um, in described step (2), mixing temperature is 140 DEG C, is increased to by reactor temperature in described step (4) after stirring
160 DEG C, pressure is 0.6Mpa, after extrusion, material is carried out air and be cooled to 40 DEG C, in described step (6) in described step (5)
Being drawn into the thin film of 65 μ m thick, cross directional stretch multiple is 7, longitudinal stretching multiple 6.5.
After process above step, take out degradable agricultural film sample, obtain data below:
From data above, the product acquired by the present invention keeps good tear strength, fracture tensile strength, fracture to stretch
On the basis of the physical and mechanical propertiess such as long rate, glossiness also reaches standard, and most material can be degradable by biology,
Belong to environmentally friendly biomembrane, add Fructus Capsici powder in the material, can effective antibacterial preparation technology simple, easily realize big rule
Mould produces.
Obviously the present invention implements and is not subject to the restrictions described above, as long as have employed method design and the skill of the present invention
The improvement of the various unsubstantialities that art scheme is carried out, or the most improved design by the present invention and technical scheme directly apply to it
Its occasion, all within protection scope of the present invention.
Claims (6)
1. the production technology of a degradable agricultural film, it is characterised in that include following processing step:
(1) raw material prepares: the production raw material (by weight) of this degradable agricultural film includes: corn starch 50-60
Part, polyvinyl alcohol 15-25 part, glycerol 13-18 part, carbamide 2-4 part, organo montmorillonite 1-3 part, dry paprika 2-4
Part, polyvinyl resin 4-8 part；
(2) mixed at high speed processes: added by corn starch in horizontal high-speed mixer, accounts for weight ratio to adding in corn starch
The water of 3%-4%, and it is carried out heat treated, mix duration 30min；
(3) filling mixing: polyvinyl alcohol is added in corn starch, and by low speed mixer mixing 15min-20min；
(4) secondary filling mixing: is added in the mixture that step (3) is obtained Fructus Capsici powder and polyvinyl resin, and puts into reaction
Stirring 10min-20min in still, adding temperature is 80 DEG C-90 DEG C；
(5) mixing plastics processing: the mixture that step (4) obtains is transported in double screw extruder, and adds glycerol, carbamide
And organo montmorillonite, extrusion temperature is 130 DEG C-150 DEG C；
(6) drying and processing: the material of extrusion is pulled into drawing oven, then carries out horizontal and vertical in drawing oven respectively
To biaxial tension, draft temperature is 90 DEG C-100 DEG C, is drawn into the thin film of 50 μm-70 μm thickness；
(7) packed products: the composite membrane of gained in step (6) is carried out sided corona treatment, rolling film forming, inspection, is finally carried out point
Cut packaging.
The production technology of a kind of degradable agricultural film the most according to claim 1, it is characterised in that: described step (1)
Middle dry paprika is pulverized by chilli and is formed, and smashing fineness is 60um-900um.
The production technology of a kind of degradable agricultural film the most according to claim 1, it is characterised in that: described step (2)
Middle mixing temperature is 100 DEG C-140 DEG C.
The production technology of a kind of degradable agricultural film the most according to claim 1, it is characterised in that: described step (4)
After middle stirring, reactor temperature being increased to 130-160 DEG C, pressure is 0.4-0.6Mpa.
The production technology of a kind of degradable agricultural film the most according to claim 1, it is characterised in that: described step (5)
After middle extrusion, material is carried out air and be cooled to 30 DEG C-40 DEG C.
The production technology of a kind of degradable agricultural film the most according to claim 1, it is characterised in that: described step (6)
Middle cross directional stretch multiple is 6-7, longitudinal stretching multiple 6-6.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610470718.6A CN106117619A (en) | 2016-06-23 | 2016-06-23 | A kind of production technology of degradable agricultural film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610470718.6A CN106117619A (en) | 2016-06-23 | 2016-06-23 | A kind of production technology of degradable agricultural film |
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| Publication Number | Publication Date |
|---|---|
| CN106117619A true CN106117619A (en) | 2016-11-16 |
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ID=57269621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610470718.6A Pending CN106117619A (en) | 2016-06-23 | 2016-06-23 | A kind of production technology of degradable agricultural film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107383575A (en) * | 2017-07-13 | 2017-11-24 | 山东农业大学 | A kind of special chilli oil master batch of agricultural mulching |
| CN113234258A (en) * | 2021-06-02 | 2021-08-10 | 李明会 | Biodegradable agricultural mulching film and production process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239795A (en) * | 2011-05-10 | 2011-11-16 | 山东农业大学 | Bacteriostatic agricultural mulching film containing chilli powder |
| CN102329435A (en) * | 2011-07-23 | 2012-01-25 | 佛山市衡龙科技有限公司 | Composite fully degradable agricultural mulching film material and preparation process thereof |
-
2016
- 2016-06-23 CN CN201610470718.6A patent/CN106117619A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239795A (en) * | 2011-05-10 | 2011-11-16 | 山东农业大学 | Bacteriostatic agricultural mulching film containing chilli powder |
| CN102329435A (en) * | 2011-07-23 | 2012-01-25 | 佛山市衡龙科技有限公司 | Composite fully degradable agricultural mulching film material and preparation process thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107383575A (en) * | 2017-07-13 | 2017-11-24 | 山东农业大学 | A kind of special chilli oil master batch of agricultural mulching |
| CN113234258A (en) * | 2021-06-02 | 2021-08-10 | 李明会 | Biodegradable agricultural mulching film and production process thereof |
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Application publication date: 20161116 |
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