CN111002665A - Biodegradable plastic film - Google Patents

Biodegradable plastic film Download PDF

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Publication number
CN111002665A
CN111002665A CN201911115520.6A CN201911115520A CN111002665A CN 111002665 A CN111002665 A CN 111002665A CN 201911115520 A CN201911115520 A CN 201911115520A CN 111002665 A CN111002665 A CN 111002665A
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CN
China
Prior art keywords
layer
water
air
plastic film
biodegradable plastic
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201911115520.6A
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Chinese (zh)
Inventor
邹彩花
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Dexinmei Electronic Technology Co Ltd
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Suzhou Dexinmei Electronic Technology Co Ltd
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Priority to CN201911115520.6A priority Critical patent/CN111002665A/en
Publication of CN111002665A publication Critical patent/CN111002665A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/716—Degradable
    • B32B2307/7163—Biodegradable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/728—Hydrophilic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/80—Medical packaging

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  • Laminated Bodies (AREA)

Abstract

The invention discloses a biodegradable plastic film, which comprises: the water-absorbing coating comprises a flame-retardant layer, an antibacterial layer, a water-absorbing layer, an inner film layer, a degradation layer and an outer coating layer. Through the mode, the dustproof heat-insulation air-permeable curtain wall is simple in structure, convenient to install, environment-friendly and reproducible, has waterproof and air-permeable effects besides effective dust prevention, the pore diameter of the waterproof and air-permeable curtain wall is smaller than that of water drops, so that moisture cannot pass through the waterproof and air-permeable curtain wall, and the pore diameter of the micropores is larger than that of water vapor molecules, so that air can pass through the waterproof and air-permeable curtain wall smoothly.

Description

Biodegradable plastic film
Technical Field
The invention relates to the field of new materials, in particular to a biodegradable plastic film.
Background
With the vigorous development of food and pharmaceutical industries, the demand for novel packaging materials is more urgent than ever, and at present, the problem of environmental pollution of packaging materials has attracted high attention of all countries in the world, and the realization of environmental friendliness of packaging materials has become one of the most attractive and challenging directions for scientific research of materials. Biodegradable plastic is one of the effective ways to treat the contradiction between environmental pollution and petroleum resource buffering of plastic waste, and from the packaging bag of food, agricultural film and the shell of electronic and electric products, from disposable packaging and edible products to durable products, the biodegradable plastic gradually replaces the traditional plastic material, and the market prospect is very wide. Although the traditional packaging plastic film can play a role in protecting packaging and dust prevention, the air permeability cannot be guaranteed, so that the practical effect of packaged products with high requirements on air permeability is influenced in the packaging process. In addition, as plastic films are widely used, people select bags made of the plastic films to contain articles, and sometimes the bags are broken due to the fact that the articles are too heavy, and unnecessary waste is caused.
Disclosure of Invention
The invention mainly solves the technical problems that: aiming at the defects of the prior art, the biodegradable plastic film is provided, has the advantages of environmental protection and reproducibility, has the effects of water resistance and ventilation besides effective dust prevention, has the pore diameter smaller than water drops, ensures that moisture can not pass through, has the pore diameter larger than water vapor molecules, ensures that air can pass through smoothly, and can effectively dissipate heat.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is a biodegradable plastic film comprising: the water-absorbing composite material comprises a flame-retardant layer, an antibacterial layer, a water-absorbing layer, an inner film layer, a degradation layer and an outer coating layer, wherein the flame-retardant layer is formed by compounding a biodegradable flame-retardant material on the antibacterial layer; the antibacterial layer is bonded with the water absorbing layer through low-viscosity rubber, the water absorbing layer is made of water absorbing resin, the water absorbing layer is bonded with the inner film layer, the degradation layer and the outer film layer are combined together in a hot pressing mode, the inner film layer and the outer film layer are made of polyethylene, and a plurality of air holes are distributed in the outer film layer.
In a preferred embodiment of the present invention, the thickness of the outer coating layer is 0.1mm to 0.3 mm.
In a preferred embodiment of the invention, the number of the air holes is 8-10.
In a preferred embodiment of the invention, the pore diameter of the air holes is 0.01-0.03 mm.
In a preferred embodiment of the present invention, the degradation layer is filled with a biodegradable enzyme.
In a preferred embodiment of the present invention, the air holes are arranged in a diamond shape on the outer coating layer.
The invention has the beneficial effects that: the waterproof and breathable fabric has the advantages of being environment-friendly and reproducible, having waterproof and breathable effects except effective dust prevention, having the pore diameter smaller than water drops, enabling moisture to pass through inefficiently, having the pore diameter larger than water vapor molecules, enabling air to pass through smoothly, and being capable of effectively dissipating heat.
Drawings
FIG. 1 is a schematic structural view of a biodegradable plastic film according to the present invention;
the parts in the drawings are numbered as follows: 1. the water-absorbing and water-absorbing composite material comprises a flame-retardant layer, 2 an antibacterial layer, 3 a water-absorbing layer, 4 an inner film layer, 5 a degradation layer, 6 an outer coating layer.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Referring to fig. 1, an embodiment of the present invention includes:
a biodegradable plastic film comprising: the water-absorbing and fire-retardant antibacterial fabric comprises a flame-retardant layer 1, an antibacterial layer 2, a water-absorbing layer 3, an inner film layer 4, a degradation layer 5 and an outer film layer 6, wherein the flame-retardant layer 1 is formed by compounding a biodegradable flame-retardant material on the antibacterial layer 2; antibiotic layer 2 is through low glutinous rubber bonding layer 3 absorbs water, layer 3 absorbs water is water absorbent resin, layer 3 bonds absorb water 4 layers of inner membrance, the mode that inner membranous layer 4, degradation layer 5 and outer tunica adventitia 6 pass through the hot pressing combines together, inner membrance layer 4 with outer tunica adventitia 6 is polyethylene, a plurality of bleeder vents distribute on the outer tunica adventitia 6.
The thickness of the outer coating layer is 0.1 mm-0.3 mm, the number of the air holes is 8-10, the aperture of the air holes is 0.01-0.03 mm, the degradation layer is filled with biodegradable enzyme, and the air holes are arranged on the outer coating layer in a diamond shape.
The starch in an amount of about 60% to 65% by weight of the total weight of the compounded masterbatch is dried at a temperature of about 110 ℃ to a moisture content of less than 3%. The organic siloxane coupling agent (or aluminate coupling agent) is diluted into the surface treating agent by white oil at the temperature of 70-80 ℃. Adding the dried starch and the coupling agent treatment solution into a mixer according to the formula required proportion, mixing and stirring for about 10min at the temperature of about 80 ℃, and carrying out surface treatment on the starch. The brightening agent, PE resin, starch after surface treatment and other auxiliary materials in the formula of the master batch are metered according to the proportion required by the formula, added into a high-speed mixer for mixing, stirred and mixed evenly. The process temperature is about 80 ℃ and the mixing time is about 5min. The temperature of the mixture is reduced to below 45 ℃. The mixture is mixed, plasticized and granulated by an extruder. Simple process temperature of plasticizing and granulating extruder: 100-120 ℃, 130-140 ℃, 150-160 ℃ and 130-140 ℃ of the die. When the mixture is kneaded and sliced by an open mill, the roll temperature is about 120 ℃, and the roll-to-roll gap is 1.5 mm. The process for pre-refining starch by the pre-refining starch method is basically the same as that for producing the biodegradable master batch by the EAA compatibilizer, but the treatment method of starch is slightly different. The starch is pre-refined by dehydrating starch in liquid state under vacuum to make the water content in the starch not more than 3%, then using mineral oil as carrier, grinding pasty starch slurry by special process, and refining starch grains below 10 § m to make the starch have better dispersibility in PE resin. The material has good mechanical property and processability, the mechanical property is between PE and PP, and the use requirement of general plastic can be met; can be molded on general polyester processing equipment, and has the best processing performance in the general completely biodegradable plastic (which is important for the application of the degradable plastic). Has good degradation performance, and the biodegradation rate reaches more than 90 percent in 90 days under the composting condition. The modified biodegradable polyester has excellent heat resistance, the heat deformation temperature is close to 100 ℃, the modified polyester can exceed 100 ℃ (the modified polyester has the best heat resistance in completely biodegradable polyester), and the modified polyester can be used for preparing cold and hot drinks, lunch boxes and other packaging fields. Has the advantages of price superiority, after large-scale production, the price is expected to break through 2 ten thousand yuan/ton, and the raw materials can be obtained by a biological fermentation way. The application is extremely wide, and the method can be used in the fields of packaging, disposable appliances, agriculture, medical use and the like, thereby solving the problem of environmental pollution in a real sense.
The invention discloses a biodegradable plastic film, which is environment-friendly and reproducible, has the effects of water resistance and air permeability besides effective dust prevention, the pore diameter is smaller than that of water drops, so that moisture cannot pass through, and the pore diameter of micropores is larger than that of water vapor molecules, so that air can pass through smoothly, and heat can be effectively dissipated.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used for convenience of description and simplicity of description only, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (6)

1. A biodegradable plastic film, comprising: the water-absorbing composite material comprises a flame-retardant layer, an antibacterial layer, a water-absorbing layer, an inner film layer, a degradation layer and an outer coating layer, wherein the flame-retardant layer is formed by compounding a biodegradable flame-retardant material on the antibacterial layer; the antibacterial layer is bonded with the water absorbing layer through low-viscosity rubber, the water absorbing layer is made of water absorbing resin, the water absorbing layer is bonded with the inner film layer, the degradation layer and the outer film layer are combined together in a hot pressing mode, the inner film layer and the outer film layer are made of polyethylene, and a plurality of air holes are distributed in the outer film layer.
2. The biodegradable plastic film according to claim 1, wherein the thickness of said outer coating layer is 0.1 mm-0.3 mm.
3. The biodegradable plastic film according to claim 1, wherein the number of said vent holes is 8-10.
4. The biodegradable plastic film according to claim 3, wherein the pore size of said air-permeable pores is 0.01 to 0.03 mm.
5. The biodegradable plastic film according to claim 1, wherein said degradation layer is filled with a biodegradable enzyme.
6. The biodegradable plastic film according to claim 1, wherein the vent holes are arranged in a diamond shape on the outer coating layer.
CN201911115520.6A 2019-11-15 2019-11-15 Biodegradable plastic film Withdrawn CN111002665A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911115520.6A CN111002665A (en) 2019-11-15 2019-11-15 Biodegradable plastic film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911115520.6A CN111002665A (en) 2019-11-15 2019-11-15 Biodegradable plastic film

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CN111002665A true CN111002665A (en) 2020-04-14

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CN201911115520.6A Withdrawn CN111002665A (en) 2019-11-15 2019-11-15 Biodegradable plastic film

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111497399A (en) * 2020-05-12 2020-08-07 合肥佛斯德新材料科技有限公司 Antibacterial barrier film
CN114316312A (en) * 2022-01-05 2022-04-12 惠州科碧尔生物新材料有限公司 Preparation method of biodegradable starch-based polypropylene plastic master batch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111497399A (en) * 2020-05-12 2020-08-07 合肥佛斯德新材料科技有限公司 Antibacterial barrier film
CN114316312A (en) * 2022-01-05 2022-04-12 惠州科碧尔生物新材料有限公司 Preparation method of biodegradable starch-based polypropylene plastic master batch

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Application publication date: 20200414

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