CN111421908A - Degradable bubble film and preparation process thereof - Google Patents

Degradable bubble film and preparation process thereof Download PDF

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Publication number
CN111421908A
CN111421908A CN202010148236.5A CN202010148236A CN111421908A CN 111421908 A CN111421908 A CN 111421908A CN 202010148236 A CN202010148236 A CN 202010148236A CN 111421908 A CN111421908 A CN 111421908A
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China
Prior art keywords
parts
bubble film
layer
degradable
waterproof
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Pending
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CN202010148236.5A
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Chinese (zh)
Inventor
钟伟
李绪琼
王霞
鲁应兵
陈星�
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Wuhan Jupinjia Packaging Materials Co ltd
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Wuhan Jupinjia Packaging Materials Co ltd
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Priority to CN202010148236.5A priority Critical patent/CN111421908A/en
Publication of CN111421908A publication Critical patent/CN111421908A/en
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
    • 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
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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    • C08J5/18—Manufacture of films or sheets
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16—Antifouling paints; Underwater paints
    • C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
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    • C09D5/1675—Polyorganosiloxane-containing compositions
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract

The invention discloses a degradable bubble film and a preparation process thereof, belonging to the technical field of packaging materials and comprising a base layer, wherein the upper surface and the lower surface of the base layer are both fixedly connected with bubble film layers, the outer surfaces of the bubble film layers are provided with waterproof and antifouling layers, and the base layer is a grid surface woven by bamboo charcoal fibers and accounts for 60-70 parts by weight. The degradable bubble film and the preparation process thereof have the advantages that the base layer and the two bubble film layers are bonded together, so that the degradable bubble film has excellent use strength, the outer surface of the bubble film layer is coated with the waterproof and anti-fouling layer, the waterproof and anti-fouling layer can cover the hydrophobic and anti-fouling characteristics of the degradable bubble film, the damage of water stains and dust to articles wrapped by the degradable bubble film is reduced, meanwhile, the biodegradable additive is added into the mixed components of the degradable bubble film, the degradable bubble film can be degraded quickly after being discarded, the preparation process of the degradable bubble film is simple, the product has market competitiveness, and better benefits can be brought.

Description

Degradable bubble film and preparation process thereof
Technical Field
The invention belongs to the technical field of packaging materials, and particularly relates to a degradable bubble film and a preparation process thereof.
Background
The bubble film is also called air cushion film, air bead film, bubble cloth, bubble paper, bubble film or air cushion film, is a pressure-proof, moisture-proof and shock-proof chemical product for packaging and filling, and has the advantages of good shock absorption, impact resistance, heat sealing property, no toxicity, no odor, moisture resistance, corrosion resistance, good transparency and the like.
The existing packaging bag, packaging film, bubble bag or bubble film are all petroleum-based products generally, namely a large amount of petroleum is consumed, the petroleum-based products are one of main factors for exceeding the standard of carbon emission, the caused white pollution is endless, the products are difficult to degrade after being discarded, the adverse effects on the environment are easily caused, the environmental protection standard is not met, the waterproof pollution resistance and the strength are poor, the protected products are easily polluted by water and dust, and the products are also easily impacted by external force, so that the practicability is poor, therefore, the invention has the advantages of high strength, high waterproof pollution resistance and great significance for the technical field of packaging material preparation.
Disclosure of Invention
Technical problem to be solved
In order to overcome the defects in the prior art, the invention provides a degradable bubble film and a preparation process thereof, which solve the problems that the common bubble film is difficult to degrade after being discarded, is easy to cause adverse effects on the environment, does not meet the standard of environmental protection, has poor waterproof and anti-pollution performance and strength, ensures that protected objects are easy to be polluted by water and dust, is easy to be impacted by external force and has poor practicability.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a degradable bubble chamber membrane, includes the basic unit, the equal fixedly connected with bubble rete in upper and lower two surfaces of basic unit, the surface of bubble rete is provided with waterproof antifouling layer.
As a further scheme of the invention: the base layer is a grid surface woven by bamboo charcoal fibers, and the weight portion of the grid surface is 60-70 portions.
As a further scheme of the invention: the bubble film layer comprises the following raw materials in parts by weight: 80-90 parts of polyethylene, 2-3 parts of antibacterial agent, 1.5-2.5 parts of plasticizer, 2-3 parts of biodegradable additive and 0.5-1.5 parts of whitening agent.
As a further scheme of the invention: the waterproof and antifouling layer comprises biodegradable additives, a osmanthus essence extract, nano silicon dioxide, methyltrimethoxysilane, tetraethoxysilane, organic montmorillonite and tetrahydrofuran, and is prepared from the following raw materials in parts by weight: 2-3 parts of biodegradable additive, 1.5-3.5 parts of osmanthus essence extract, 3-5 parts of nano silicon dioxide, 15-18 parts of methyltrimethoxysilane, 2-4 parts of ethyl orthosilicate, 6-8 parts of organic montmorillonite and 5.5-8.5 parts of tetrahydrofuran.
As a further scheme of the invention: the thickness of the coating of the waterproof antifouling layer is 35-55 mu m, and the bubble positions of the upper bubble film layer and the lower bubble film layer are arranged in a staggered mode.
A degradable bubble film preparation process comprises the following steps:
s1, weighing: according to the weight portion, 60-70 portions of bamboo charcoal fiber, 80-90 portions of polyethylene, 2-3 portions of antibacterial agent, 1.5-2.5 portions of plasticizer, 2-3 portions of biodegradable additive, 0.5-1.5 portions of whitening agent, 2-3 portions of biodegradable additive, 1.5-3.5 portions of osmanthus flower essence extract, 3-5 portions of nano silicon dioxide, 15-18 portions of methyltrimethoxysilane, 2-4 portions of ethyl orthosilicate, 6-8 portions of organic montmorillonite and 5.5-8.5 portions of tetrahydrofuran are weighed.
S2, mixing: putting polyethylene, an antibacterial agent, a plasticizer and a brightener into a high-speed mixer for mixing and stirring, clockwise stirring for 30min at the stirring speed of 300-500 r/min, adding a biodegradable additive 5min before the stirring is finished to prepare a bubble membrane layer mixture, adding nano silicon dioxide and methyltrimethoxysilane into an ethanol aqueous solution, then adding an oxalic acid aqueous solution, heating to 70-90 ℃, stirring for 10-12h to prepare a solution A, adding tetraethoxysilane into an ammonia-containing alcoholic solution, keeping the temperature at 50-70 ℃ for 3-5h to obtain a solution B, adding and dissolving the solution A, the solution B and 4-6 parts of organic montmorillonite into 2-4 parts of tetrahydrofuran, stirring and reacting at the temperature of 60-70 ℃ for 6-8h at the rotating speed of 70-90r/min, adding biodegradable additive and flos Osmanthi Fragrantis essence extract 5min before mixing to obtain water-proof and anti-fouling layer solution.
S3, molding: weaving bamboo fibers into a base layer in a staggered mode, putting the mixture of the bubble film layers obtained in the previous step into a bubble film machine, extruding the mixture and then molding the mixture, and thus obtaining the bubble film.
S4, bonding: and brushing a layer of curing adhesive on two sides of the base layer, and then bonding one side of the two layers of bubble film layers without bubbles with the two sides of the base layer.
S5, spraying: and uniformly coating the waterproof and anti-fouling layer solution on the surfaces, far away from the upper and lower bubble film layers, of the bubble films by using a spray gun, and then baking the bubble films coated with the hydrophobic coatings at the temperature of 110-130 ℃ for 4-6h, so that the degradable bubble films with higher strength and higher waterproof and anti-fouling properties are obtained.
(III) advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. the degradable bubble film and the preparation process thereof, the base layer and the two bubble film layers are adhered together, so that the degradable bubble film has excellent use strength, the outer surface of the bubble film layer is coated with the waterproof antifouling layer, the waterproof antifouling layer is prepared by taking methyltrimethoxysilane and tetraethoxysilane as raw materials, the contact angle between the coating and water can be increased, the waterproof antifouling performance is increased, the permeability of the bubble film can be improved, the durability of the coating is increased, tetraethoxysilane is added into an ammonia-containing alcohol solution, ammonia water is taken as a catalyst for the reaction, the waterproof antifouling performance can be improved, the reaction speed is accelerated, the hydrophobic antifouling property can be covered, and water and dust falling on the degradable bubble film can be rapidly condensed to fall off from the surface of the degradable bubble film by increasing the contact angle between the degradable bubble film and water, the preparation method has the advantages that the residues of water stains and dust on the air bubble film are reduced, so that the damage of the water stains and the dust to the wrapped articles is reduced, meanwhile, the biodegradable additive is added into the mixed components of the air bubble film layer and the waterproof antifouling layer, so that the articles can be degraded quickly after being discarded, and can better approach the environmental protection standard.
2. The degradable bubble film and the preparation process thereof can reduce the adverse effect on wrapped articles when the positions without bubbles are impacted by external force by arranging the bubbles of the two bubble film layers in a staggered way, and can ensure that the degradable bubble film has better use strength, and meanwhile, the montmorillonite added in the waterproof and antifouling layer can improve the impact resistance, fatigue resistance, size stability and gas barrier property of the base material, thereby playing the role of enhancing the comprehensive physical properties of the base material, and further improving the excellent packaging performance of the invention.
3. According to the degradable bubble film and the preparation process thereof, the coating thickness of the waterproof antifouling layer is set to be 30-50 microns, so that the waterproof antifouling layer can improve the waterproof and antifouling performance of the bubble film, other influences on the bubble film caused by the waterproof antifouling layer can be reduced as much as possible, the bubble film still has the performances of light weight, good shock absorption and transparency and the like, and the osmanthus essence extract is added into the preparation solution of the waterproof antifouling layer, so that the osmanthus essence extract can enable the bubble film to emit fragrance, the industrial peculiar smell generated during production of the bubble film can be covered, and the practicability of the bubble film is higher.
Drawings
FIG. 1 is a schematic view of a front view of a partial cross-sectional structure of the present invention;
FIG. 2 is a schematic diagram of the production flow structure of the present invention;
in the figure: 1 basic unit, 2 bubble rete, 3 waterproof antifouling layer.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
As shown in fig. 1-2, the present invention provides a technical solution: a degradable bubble film comprises a base layer 1, wherein the base layer 1 is a grid surface woven by bamboo charcoal fiber, the weight portion is 60-70 parts, the grid surface woven by the bamboo charcoal fiber is arranged, so that the toughness and the strength of the degradable bubble film can be improved on the premise of reducing pollution, the using effect of the degradable bubble film is better, the front surface and the back surface of the base layer 1 are fixedly connected with bubble film layers 2, the degradable bubble film has better using strength by adopting the structure of one base layer 1 and two bubble film layers 2, meanwhile, a biodegradable additive is added into the components of the bubble film, the degradable bubble film can be rapidly degraded after being abandoned, the bubble positions of the upper bubble film layer and the lower bubble film layer 2 are arranged in a staggered manner, and the adverse effect on wrapped articles when the positions without bubbles are impacted by external force can be reduced by arranging the bubbles of the two bubble film layers 2 in a staggered manner, the bubble film layer 2 has better use strength, the raw materials of the bubble film layer 2 comprise polyethylene, an antibacterial agent, a plasticizer, a biodegradable additive and a whitening agent, and the biodegradable additive is added, so that the degradation speed of the bubble film layer can be improved, and the bubble film layer comprises the following raw materials in parts by weight: 80-90 parts of polyethylene, 2-3 parts of an antibacterial agent, 1.5-2.5 parts of a plasticizer, 2-3 parts of a biodegradable additive and 0.5-1.5 parts of a whitening agent, wherein the outer surface of the bubble film layer 2 is provided with a waterproof and antifouling layer 3, the thickness of the coating of the waterproof and antifouling layer 3 is 35-55 microns, the coating of the waterproof and antifouling layer 3 is 30-50 microns, so that the waterproof and antifouling layer 3 can improve the waterproof and antifouling performance of the invention and simultaneously can reduce other influences on the invention caused by the waterproof and antifouling layer 3 as much as possible, the waterproof and antifouling layer still has the performances of light weight, good shock absorption and transparency and the like, the raw materials of the waterproof and antifouling layer 3 comprise the biodegradable additive, a osmanthus flower essence extract, nano silicon dioxide, methyltrimethoxysilane, ethyl orthosilicate, organic montmorillonite and tetrahydrofuran, and the osmanthus flower essence extract is added into the preparation solution of the waterproof and antifouling layer 3, the osmanthus essence extract can make the osmanthus essence extract emit fragrance, so that the industrial peculiar smell generated in the production process of the osmanthus essence extract can be covered, the practicability of a bubble film is higher, the impact resistance, fatigue resistance, size stability and gas barrier property of a base material can be improved by adding the montmorillonite into the waterproof stain-resistant layer 3, so that the comprehensive physical property of the base material is enhanced, the excellent packaging performance of the osmanthus essence extract is further improved, the oleophobic property of the montmorillonite, which is shown by a large amount of inorganic ions between layers, is not beneficial to the dispersion of the montmorillonite in the base material, so that the montmorillonite is subjected to organic modification, the organic montmorillonite is converted into oleophilic property between layers, the surface energy of the montmorillonite is reduced, the layer spacing is increased, tetrahydrofuran is a solvent with excellent performance, is suitable for a solvent of a surface coating and a film coating, and is beneficial to the solution A, the solution B, the solution, Dispersing and reacting organic montmorillonite, wherein the raw materials comprise the following components in parts by weight: 2-3 parts of biodegradable additive, 1.5-3.5 parts of osmanthus essence extract, 3-5 parts of nano silicon dioxide, 15-18 parts of methyltrimethoxysilane, 2-4 parts of ethyl orthosilicate, 6-8 parts of organic montmorillonite and 5.5-8.5 parts of tetrahydrofuran, wherein the waterproof and antifouling layer 3 is prepared by taking methyltrimethoxysilane and ethyl orthosilicate as raw materials and can increase the contact angle of the coating and water so as to increase the waterproof and antifouling performance, the nano silicon dioxide can improve the permeability of a bubble film and increase the durability of the coating, the ethyl orthosilicate is added into an ammonia-containing alcohol solution, and ammonia water is used as a catalyst for the reaction of the ethyl orthosilicate, so that the waterproof and antifouling performance can be improved, the reaction speed is increased, and the hydrophobic and antifouling characteristics can be covered.
A degradable bubble film preparation process comprises the following steps:
s1, weighing: according to the weight portion, 60-70 portions of bamboo charcoal fiber, 80-90 portions of polyethylene, 2-3 portions of antibacterial agent, 1.5-2.5 portions of plasticizer, 2-3 portions of biodegradable additive, 0.5-1.5 portions of whitening agent, 2-3 portions of biodegradable additive, 1.5-3.5 portions of osmanthus flower essence extract, 3-5 portions of nano silicon dioxide, 15-18 portions of methyltrimethoxysilane, 2-4 portions of ethyl orthosilicate, 6-8 portions of organic montmorillonite and 5.5-8.5 portions of tetrahydrofuran are weighed.
S2, mixing: putting polyethylene, an antibacterial agent, a plasticizer and a brightener into a high-speed mixer for mixing and stirring, clockwise stirring for 30min at the stirring speed of 300-500 r/min, adding a biodegradable additive 5min before the stirring is finished to prepare a bubble membrane layer 2 mixture, adding nano silicon dioxide and methyltrimethoxysilane into an ethanol aqueous solution, then adding an oxalic acid aqueous solution, heating to 70-90 ℃, stirring for 10-12h to prepare a solution A, adding tetraethoxysilane into an ammonia-containing alcoholic solution, keeping the temperature at 50-70 ℃ for 3-5h to obtain a solution B, adding the solution A, the solution B and 4-6 parts of organic montmorillonite, dissolving in 2-4 parts of tetrahydrofuran, stirring and reacting at the rotating speed of 70-90r/min at the temperature of 60-70 ℃ for 6-8h, the biodegradable additive and the osmanthus fragrans essence extract were added 5min before the end of the mixing, thereby obtaining a water-repellent and stain-repellent layer 3 solution.
S3, molding: weaving bamboo fibers into a base layer 1 in a staggered mode, putting the mixture of the bubble film layer 2 obtained in the previous step into a bubble film machine, extruding the mixture and then forming the mixture, and thus obtaining the bubble film.
S4, bonding: and brushing a layer of curing adhesive on two sides of the base layer 1, and then bonding one side of the two layers of bubble film layers 2 without bubbles with two sides of the base layer 1.
S5, spraying: the solution of the waterproof and antifouling layer 3 is uniformly coated on the surfaces, far away from the upper and lower bubble film layers 2, of the bubble films by a spray gun, and then the bubble films coated with the hydrophobic coatings are baked for 4-6 hours at the temperature of 110-130 ℃, so that the degradable bubble films with high strength, high waterproof and antifouling properties are obtained.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (6)

1. A degradable bubble film comprises a base layer (1), and is characterized in that: the upper surface and the lower surface of the base layer (1) are fixedly connected with bubble film layers (2), and the outer surfaces of the bubble film layers (2) are provided with waterproof antifouling layers (3).
2. A degradable bubble film according to claim 1, wherein: the base layer (1) is a grid surface woven by bamboo charcoal fibers, and the weight portion of the grid surface is 60-70 portions.
3. A degradable bubble film according to claim 1, wherein: the bubble film layer (2) comprises the following raw materials in parts by weight: 80-90 parts of polyethylene, 2-3 parts of antibacterial agent, 1.5-2.5 parts of plasticizer, 2-3 parts of biodegradable additive and 0.5-1.5 parts of whitening agent.
4. A degradable bubble film according to claim 3, wherein: the waterproof and antifouling layer (3) comprises biodegradable additives, a sweet osmanthus essence extract, nano silicon dioxide, methyltrimethoxysilane, ethyl orthosilicate, organic montmorillonite and tetrahydrofuran, and is prepared from the following raw materials in parts by weight: 2-3 parts of biodegradable additive, 1.5-3.5 parts of osmanthus essence extract, 3-5 parts of nano silicon dioxide, 15-18 parts of methyltrimethoxysilane, 2-4 parts of ethyl orthosilicate, 6-8 parts of organic montmorillonite and 5.5-8.5 parts of tetrahydrofuran.
5. A degradable bubble film according to claim 1, wherein: the thickness of the coating of the waterproof antifouling layer (3) is 35-55 mu m, and the bubble positions of the upper bubble film layer and the lower bubble film layer (2) are arranged in a staggered mode.
6. A degradable bubble film preparation process is characterized by comprising the following steps:
s1, weighing: weighing 60-70 parts of bamboo charcoal fiber, 80-90 parts of polyethylene, 2-3 parts of an antibacterial agent, 1.5-2.5 parts of a plasticizer, 2-3 parts of a biodegradable additive, 0.5-1.5 parts of a whitening agent, 2-3 parts of a biodegradable additive, 1.5-3.5 parts of a osmanthus essence extract, 3-5 parts of nano silicon dioxide, 15-18 parts of methyltrimethoxysilane, 2-4 parts of ethyl orthosilicate, 6-8 parts of organic montmorillonite and 5.5-8.5 parts of tetrahydrofuran in parts by weight;
s2, mixing: putting polyethylene, an antibacterial agent, a plasticizer and a brightener into a high-speed mixer for mixing and stirring, clockwise stirring for 30min at the stirring speed of 300-500 r/min, adding a biodegradable additive 5min before the stirring is finished to prepare a bubble membrane layer (2) mixture, adding nano silicon dioxide and methyltrimethoxysilane into an ethanol water solution, then adding an oxalic acid water solution, heating to 70-90 ℃, stirring for 10-12h to prepare a solution A, adding tetraethoxysilane into an ammonia alcohol solution, keeping the temperature at 50-70 ℃ for 3-5h to obtain a solution B, adding and dissolving the solution A, the solution B and 4-6 parts of organic montmorillonite into 2-4 parts of tetrahydrofuran, stirring and reacting at the temperature of 60-70 ℃ for 6-8h at the rotating speed of 70-90r/min, adding a biodegradable additive and an extract of osmanthus fragrans essence 5min before the end of mixing to obtain a solution of the waterproof and antifouling layer (3);
s3, molding: weaving bamboo fibers into a base layer (1) in a staggered manner, putting the mixture of the bubble film layers (2) obtained in the previous step into a bubble film machine, extruding and then molding to obtain the bubble film;
s4, bonding: brushing a layer of curing adhesive on two surfaces of the base layer (1), and then bonding one surface of the two bubble film layers (2) without bubbles with two surfaces of the base layer (1);
s5, spraying: the solution of the waterproof stain-resistant layer (3) is uniformly coated on the surfaces of the upper and lower bubble film layers (2) far away from each other by a spray gun, and then the bubble films coated with the hydrophobic coatings are baked for 4-6h at the temperature of 110-130 ℃, so that the degradable bubble films with higher strength and higher waterproof stain resistance are obtained.
CN202010148236.5A 2020-03-05 2020-03-05 Degradable bubble film and preparation process thereof Pending CN111421908A (en)

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CN114195743A (en) * 2021-12-02 2022-03-18 厦门弘毅元素科技有限公司 Synthesis method of (S) -3-hydroxytetrahydrofuran
CN114348459A (en) * 2022-01-12 2022-04-15 合肥维信诺科技有限公司 Bubble film and bubble bag

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CN108264678A (en) * 2018-02-08 2018-07-10 青岛软盛塑业有限公司 Hydrophobic type bubble chamber film and preparation method thereof
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