CN114644772A - Degradable salivation film produced by using plant starch and preparation method thereof - Google Patents
Degradable salivation film produced by using plant starch and preparation method thereof Download PDFInfo
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- CN114644772A CN114644772A CN202011501458.7A CN202011501458A CN114644772A CN 114644772 A CN114644772 A CN 114644772A CN 202011501458 A CN202011501458 A CN 202011501458A CN 114644772 A CN114644772 A CN 114644772A
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- 229920002472 Starch Polymers 0.000 title claims abstract description 80
- 235000019698 starch Nutrition 0.000 title claims abstract description 80
- 239000008107 starch Substances 0.000 title claims abstract description 80
- 206010039424 Salivary hypersecretion Diseases 0.000 title claims abstract description 19
- 208000026451 salivation Diseases 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 241000196324 Embryophyta Species 0.000 claims abstract description 65
- 239000004595 color masterbatch Substances 0.000 claims abstract description 37
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 27
- 229920002261 Corn starch Polymers 0.000 claims abstract description 21
- 239000008120 corn starch Substances 0.000 claims abstract description 21
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 235000011121 sodium hydroxide Nutrition 0.000 claims abstract description 9
- 229910021538 borax Inorganic materials 0.000 claims abstract description 6
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract description 6
- 239000004328 sodium tetraborate Substances 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 52
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 51
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 51
- 241001330002 Bambuseae Species 0.000 claims description 51
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 51
- 239000011425 bamboo Substances 0.000 claims description 51
- 238000001035 drying Methods 0.000 claims description 25
- 239000000243 solution Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 239000011259 mixed solution Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000007872 degassing Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 240000006677 Vicia faba Species 0.000 claims description 3
- 235000010749 Vicia faba Nutrition 0.000 claims description 3
- 235000002098 Vicia faba var. major Nutrition 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229920001592 potato starch Polymers 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000007766 curtain coating Methods 0.000 abstract description 9
- 239000012528 membrane Substances 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000006731 degradation reaction Methods 0.000 abstract description 6
- 239000008346 aqueous phase Substances 0.000 abstract 2
- 238000005266 casting Methods 0.000 description 9
- 238000007605 air drying Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
-
- 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
-
- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
-
- 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
- C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2303/02—Starch; Degradation products thereof, e.g. dextrin
-
- 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
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The application discloses a degradable salivation film produced by utilizing plant starch and a preparation method thereof. This application structural design is reasonable, through the basic unit as the curtain coating membrane with plant starch, thereby possess the performance of degradation, reduce exhaust pollution, form filiform structure through set up fibrous layer on plant starch basic unit both sides surface, can improve the tensile strength of curtain coating membrane, simultaneously with antistatic color masterbatch layer for curtain coating membrane surface, possess antistatic function, and avoid weing and cause the condition of plant starch basic unit degradation, adopt corn starch for used plant starch, simultaneously with corn starch and the aqueous phase that contains hydrogen peroxide solution, the aqueous phase intermixing stirring of caustic soda and borax is in the same place, can improve the viscosity of corn starch paste, the fastness of combining between the enhancement layer.
Description
Technical Field
The application relates to a salivation film and a preparation method thereof, in particular to a degradable salivation film produced by using plant starch and a preparation method thereof.
Background
The casting film has excellent heat sealing performance and excellent transparency, is one of main packaging composite base materials, is used for producing high-temperature cooking films, vacuum aluminized films and the like, has a good market prospect, and along with the development of domestic casting film production equipment, part of technical indexes of the casting film reach the international advanced level, so that the threshold for entering the casting film production is lower and lower.
The waste casting film is not easy to degrade, causes environmental pollution, is easy to tear, has relatively poor tensile property, is easy to triboelectrification, is not easy to use in some special environments, and is easy to cause fire. Therefore, the method for producing the degradable salivation film by using the plant starch and the preparation method thereof are provided aiming at the problems.
Content of application
The present application aims to solve the above problems and provide a method for producing a degraded salivation film by using plant starch.
This application realizes above-mentioned purpose through following technical scheme, an utilize plant starch production degradation hydrostomia membrane, include plant starch basic unit, bamboo fibre layer down, antistatic color masterbatch layer down, go up bamboo fibre layer and last antistatic color masterbatch layer, plant starch basic unit one side is provided with bamboo fibre layer, and goes up bamboo fibre layer one side and be provided with antistatic color masterbatch layer, thing starch basic unit opposite side is provided with down bamboo fibre layer, and bamboo fibre layer one side is provided with down antistatic color masterbatch down.
Further, the thickness dimension of the upper bamboo fiber layer is consistent with that of the lower bamboo fiber layer.
Further, the setting specification of the upper antistatic color master layer is the same as that of the lower antistatic color master layer.
Further, the preparation method for producing the degraded salivation film by using the plant starch comprises the following steps:
(1) selecting materials: respectively weighing plant starch and antistatic color master batch with certain mass by an electronic balance, and simultaneously taking bamboo fiber;
(2) mixing starch: adding water into the beaker, and uniformly mixing to prepare plant starch mixed solution;
(3) gelatinizing a starch mixed solution: heating the starch mixed solution in a boiling water bath for gelatinization, and stirring at intervals in the gelatinization process;
(4) pasting and stirring: stirring by using a constant-temperature magnetic stirrer in the heating and pasting process in the step (3);
(5) filtering and degassing: filtering and degassing the plant starch mixed solution which is heated and gelatinized by using a standard sieve;
(6) melting the color master batch: while the step (2) is carried out, placing the antistatic color master batch in a container, heating and melting to form antistatic color master batch melt, and keeping the temperature for later use;
(7) coating and drying layer by layer: pouring the antistatic color master batch solution obtained in the step (6) on a glass mold to fully pave the glass mold, laying bamboo fibers on an antistatic color master batch layer, pouring degassed plant starch solution on the bamboo fiber layer to fully pave the bamboo fiber layer, laying the bamboo fibers on the upper liquid level of the plant starch solution, pouring the antistatic color master batch solution on the bamboo fiber layer to fully pave the bamboo fiber layer, and finally putting the whole body into a blast drying oven to be dried to form the degradable casting film.
Further, the plant starch in the step (1) is divided into: corn starch, potato starch and broad bean starch, preferably the corn starch is used as plant starch, and the mass ratio of the corn starch to the antistatic color master batch is 4: 1.
Further, 0.1-0.2 kg of hydrogen peroxide, 0.86-0.96 kg of caustic soda and 0.2-0.4 kg of borax which are used by taking 12-14 kg of corn starch as a standard are added into 82-86 kg of water in the step (2).
Further, the concentration of the hydrogen peroxide and the concentration of the caustic soda are respectively 30% and 30%.
Further, the stirring speed of the step (4) is 20r/s, and the stirring time is 30 min-50 min.
Further, in the step (7), the bamboo fibers are respectively laid in the semi-solidified state of the antistatic color master batch melt and the plant starch solution.
Further, the drying time of the forced air drying oven in the step (7) is 20min to 30min, the drying time is divided into three drying stages, the temperature of the first drying stage is 10 ℃, the temperature of the second drying stage is 20 ℃, and the temperature of the second drying stage is 25 ℃.
The beneficial effect of this application is:
1. the structure of the curtain coating film is reasonable in design, and the plant starch is used as the base layer of the curtain coating film, so that the curtain coating film has degradation performance and reduces waste gas pollution;
2. the structure design is compact, the fiber layers are arranged on the surfaces of the two sides of the plant starch base layer to form a filamentous structure, the tensile property of the casting film can be improved, meanwhile, the antistatic color master batch layer is the outer surface of the casting film, the antistatic function is achieved, and the condition that the plant starch base layer is degraded due to the fact that the plant starch base layer is affected with damp is avoided;
3. the application adopts corn starch as the used plant starch, and simultaneously the corn starch and the water containing hydrogen peroxide, caustic soda and borax are mutually mixed and stirred together, so that the viscosity of the corn starch paste can be improved, and the firmness of combination between the enhancement layers can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a perspective view of a cast film structure of the present application;
FIG. 2 is a cross-sectional view of a cast film structure of the present application;
fig. 3 is a flow chart of the preparation of the present application.
In the figure: 1. the antistatic bamboo fiber composite material comprises a plant starch base layer, 2, a lower bamboo fiber layer, 3, a lower antistatic color master layer, 4, an upper bamboo fiber layer and 5, an upper antistatic color master layer.
Detailed Description
In order to make the purpose, features and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the embodiments described below are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical scheme of the application is further explained by the specific implementation mode in combination with the attached drawings.
In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.
Referring to fig. 1-3, a degradable salivation film produced by using plant starch comprises a plant starch base layer 1, a lower bamboo fiber layer 2, a lower antistatic color master layer 3, an upper bamboo fiber layer 4 and an upper antistatic color master layer 5, wherein the upper bamboo fiber layer 4 is arranged on one side of the plant starch base layer 1, the upper antistatic color master layer 5 is arranged on one side of the upper bamboo fiber layer 4, the lower bamboo fiber layer 2 is arranged on the other side of the plant starch base layer, and the lower antistatic color master is arranged on one side of the lower bamboo fiber layer 2.
The thickness of the upper bamboo fiber layer 4 is consistent with that of the lower bamboo fiber layer 2.
The setting specification of the upper antistatic color master layer 5 is the same as that of the lower antistatic color master layer 3.
Through the basic unit with plant starch as the curtain coating membrane to possess the performance of degradation, reduce exhaust pollution, through set up fibrous layer formation filiform structure on plant starch basic unit both sides surface, can improve the tensile properties of curtain coating membrane, be curtain coating membrane surface with antistatic color masterbatch layer simultaneously, possess antistatic function, and avoid weing and cause the condition of plant starch basic unit degradation.
A preparation method for producing a degraded salivation film by using plant starch is obtained by using the plant starch to produce the degraded salivation film, and the use method comprises the following steps:
(1) selecting materials: respectively weighing plant starch and antistatic color master batch with certain mass by an electronic balance, and simultaneously taking bamboo fiber;
(2) mixing starch: adding water into the beaker, and uniformly mixing to prepare plant starch mixed solution;
(3) gelatinizing a starch mixed solution: heating the starch mixed solution in a boiling water bath for gelatinization, and stirring at intervals in the gelatinization process;
(4) pasting and stirring: stirring by using a constant-temperature magnetic stirrer in the heating and pasting process in the step (3);
(5) filtering and degassing: filtering and degassing the plant starch mixed solution which is heated and gelatinized by using a standard sieve;
(6) melting the color master batch: while the step (2) is carried out, placing the antistatic color master batch in a container, heating and melting to form antistatic color master batch melt, and keeping the temperature for later use;
(7) coating and drying layer by layer: pouring the antistatic color master batch solution obtained in the step (6) on a glass mold to fully pave the glass mold, laying bamboo fibers on an antistatic color master batch layer, pouring degassed plant starch solution on the bamboo fiber layer to fully pave the bamboo fiber layer, laying the bamboo fibers on the upper liquid level of the plant starch solution, pouring the antistatic color master batch solution on the bamboo fiber layer to fully pave the bamboo fiber layer, and finally putting the whole body into a blast drying oven to be dried to form the degradable casting film.
The corn starch is used as the plant starch, and simultaneously, the corn starch and the water containing hydrogen peroxide, caustic soda and borax are mixed and stirred together, so that the viscosity of the corn starch paste can be improved, and the firmness of combination between layers can be enhanced.
The plant starch in the step (1) is divided into: corn starch, potato starch and broad bean starch, preferably the corn starch is used as plant starch, and the mass ratio of the corn starch to the antistatic color master batch is 4: 1.
In the step (2), 0.1-0.2 kg of hydrogen peroxide, 0.86-0.96 kg of caustic soda and 0.2-0.4 kg of borax which are used by taking 12-14 kg of corn starch as a standard are added into 82-86 kg of water.
The concentration of the hydrogen peroxide and the concentration of the caustic soda are respectively 30 percent and 30 percent.
The stirring speed of the step (4) is 20r/s, and the stirring time is 30 min-50 min.
And (4) paving the bamboo fibers in the step (7) in a semi-solidified state of the antistatic master batch solution and the plant starch solution respectively.
And (3) drying the air drying box in the step (7) for 20 min-30 min, wherein the drying time is divided into three drying stages, the temperature of the first drying stage is 10 ℃, the temperature of the second drying stage is 20 ℃ and the temperature of the second drying stage is 25 ℃.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A method for producing a degradable salivation film by using plant starch is characterized by comprising the following steps: including plant starch basic unit (1), bamboo fiber layer (2) down, antistatic color masterbatch layer (3), go up bamboo fiber layer (4) and go up antistatic color masterbatch layer (5), plant starch basic unit (1) one side is provided with bamboo fiber layer (4), and goes up bamboo fiber layer (4) one side and be provided with antistatic color masterbatch layer (5), thing starch basic unit opposite side is provided with down bamboo fiber layer (2), and bamboo fiber layer (2) one side is provided with antistatic color masterbatch down.
2. The method for producing the degradable salivating film by using the plant starch as claimed in claim 1, wherein the method comprises the following steps: the thickness of the upper bamboo fiber layer (4) is consistent with that of the lower bamboo fiber layer (2).
3. The method for producing the degradable salivating film by using the plant starch as claimed in claim 1, wherein the method comprises the following steps: the setting specification of the upper antistatic color master layer (5) is the same as that of the lower antistatic color master layer (3).
4. The method for preparing the degraded salivating film by using the plant starch according to any one of claims 1 to 3, wherein the method comprises the following steps: the using method comprises the following steps:
(1) selecting materials: respectively weighing plant starch and antistatic color master batch with certain mass by an electronic balance, and simultaneously taking bamboo fiber;
(2) mixing starch: adding water into the beaker, and uniformly mixing to prepare plant starch mixed solution;
(3) gelatinizing a starch mixed solution: heating the starch mixed solution in a boiling water bath for gelatinization, and stirring at intervals in the gelatinization process;
(4) pasting and stirring: stirring by using a constant-temperature magnetic stirrer in the heating and pasting process in the step (3);
(5) filtering and degassing: filtering and degassing the plant starch mixed solution which is heated and gelatinized by using a standard sieve;
(6) melting the color master batch: while the step (2) is carried out, placing the antistatic color master batch in a container, heating and melting to form antistatic color master batch melt, and keeping the temperature for later use;
(7) coating and drying layer by layer: pouring the antistatic color master batch solution obtained in the step (6) on a glass mold to fully cover the glass mold, laying bamboo fibers on the antistatic color master batch layer, pouring degassed plant starch solution on the bamboo fiber layer to fully cover the bamboo fiber layer, laying the bamboo fibers on the upper liquid surface of the plant starch solution, pouring the antistatic color master batch solution on the bamboo fiber layer to fully cover the bamboo fiber layer, and finally putting the whole body into a blast drying box to be dried to form the degradable salivation film.
5. The method for producing the degraded salivation film by using the plant starch as claimed in claim 4, wherein the method comprises the following steps: the plant starch in the step (1) is divided into: corn starch, potato starch and broad bean starch, preferably the corn starch is used as plant starch, and the mass ratio of the corn starch to the antistatic color master batch is 4: 1.
6. The method for producing the degraded salivation film by using the plant starch as claimed in claim 4, wherein the method comprises the following steps: in the step (2), 0.1-0.2 kg of hydrogen peroxide, 0.86-0.96 kg of caustic soda and 0.2-0.4 kg of borax which are used by taking 12-14 kg of corn starch as a standard are added into 82-86 kg of water.
7. The method for producing the degraded salivation film by using the plant starch as claimed in claim 6, wherein the method comprises the following steps: the concentration of the hydrogen peroxide and the concentration of the caustic soda are respectively 30 percent and 30 percent.
8. The method for producing the degraded salivation film by using the plant starch as claimed in claim 4, wherein the method comprises the following steps: the stirring speed in the step (4) is 20r/s, and the stirring time is 30min to 50 min.
9. The method for producing the degraded salivation film by using the plant starch as claimed in claim 4, wherein the method comprises the following steps: and (4) paving the bamboo fibers in the step (7) in a semi-solidified state of the antistatic color master batch melt and the plant starch solution respectively.
10. The method for producing the degraded salivation film by using the plant starch as claimed in claim 4, wherein the method comprises the following steps: and (3) drying the air-blast drying box in the step (7) for 20-30 min, wherein the drying time is divided into three drying stages, the temperature of the first drying stage is 10 ℃, the temperature of the second drying stage is 20 ℃, and the temperature of the second drying stage is 25 ℃.
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| CN202011501458.7A CN114644772A (en) | 2020-12-18 | 2020-12-18 | Degradable salivation film produced by using plant starch and preparation method thereof |
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| CN202011501458.7A CN114644772A (en) | 2020-12-18 | 2020-12-18 | Degradable salivation film produced by using plant starch and preparation method thereof |
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2020
- 2020-12-18 CN CN202011501458.7A patent/CN114644772A/en active Pending
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|---|---|---|---|---|
| JP2007146092A (en) * | 2005-11-25 | 2007-06-14 | Econeer Co Ltd | Composition for producing biodegradable molded product and method for production of paste, plate form material and molded product using the composition |
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Application publication date: 20220621 |