CN107488303A - Degradative membrane constructs - Google Patents

Degradative membrane constructs Download PDF

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Publication number
CN107488303A
CN107488303A CN201710852339.8A CN201710852339A CN107488303A CN 107488303 A CN107488303 A CN 107488303A CN 201710852339 A CN201710852339 A CN 201710852339A CN 107488303 A CN107488303 A CN 107488303A
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weight
parts
degradative membrane
flame
composite coating
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CN107488303B (en
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李绍才
孙海龙
陈珂
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Sichuan University
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Sichuan University
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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
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • 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
    • 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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • 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
    • C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
    • C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • 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
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • 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
    • C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
    • 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
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • 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
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • 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

Abstract

The present invention provides a kind of construction of degradative membrane, include the first composite coating successively from top to bottom, first flame-retardant layer, degraded film layer, second flame-retardant layer and the second composite coating, degrade film layer by 65 80 parts by weight acrylic resin, the starch of 25 35 parts by weight, the ferric stearate of 0.5 1 parts by weight, the antioxidant of 0.1 0.5 parts by weight, the plasticizer of 0.2 0.8 parts by weight is blended, blowing forms after granulation, first composite coating and the second composite coating by 20 40 parts by weight nano silicon, the nano titanium oxide of 50 70 parts by weight, the acrylic resin of 4 10 parts by weight, the polyimide resin of 4 10 parts by weight is mixed.The degradative membrane is formed by MULTILAYER COMPOSITE, has preferable mechanical property and fire resistance, while have higher degradation rate, moreover it is possible to extend the degradation time of degradative membrane, improve its scope of application.

Description

Degradative membrane constructs
Technical field
The invention belongs to thin film technique field, specifically, is related to a kind of degradative membrane construction.
Background technology
Film has turned into synthetic material essential during people produce and lived.With the continuous growth of film yield, Also serious environmental pollution, such as agricultural film are brought while bringing convenient as a kind of agricultural means of production, existing It is used widely in generation agricultural, but if waste and old agricultural film is not cleaned out, will be brought to environment, agricultural production very big The drawbacks of.The agricultural film that long-term use is remained on soil can cause crop production reduction, desertification, and river course is blocked, can also made Eaten by mistake into dirty swine and dead, heavy damage environment.If the film of every mu of soil residual will reduce yield more than 22kg, crops 25%, if the mulch film of every mu of low-residual, more than 50kg, soil will be unable to cultivate, desertification will be caused.At present, degradative membrane has obtained It is extensive to use, but construction is more single, the scope of application is narrower.
The content of the invention
For deficiency above-mentioned in the prior art, the present invention provides a kind of degradative membrane construction, and the degradative membrane is answered by multilayer Conjunction forms, and has preferable mechanical property and fire resistance, while have higher degradation rate, moreover it is possible to extend the degraded of degradative membrane Time, improve its scope of application.
In order to achieve the above object, the solution that uses of the present invention is：
A kind of degradative membrane construction, include the first composite coating, the first flame-retardant layer, degraded film layer, second successively from top to bottom Flame-retardant layer and the second composite coating, degraded film layer is by the acrylic resin of 65-80 parts by weight, the starch of 25-35 parts by weight, 0.5- The ferric stearate of 1 parts by weight, the antioxidant of 0.1-0.5 parts by weight, the plasticizer of 0.2-0.8 parts by weight are blended, are granulated after-blow Modeling forms, and the first composite coating and the second composite coating are by the nano silicons of 20-40 parts by weight, 50-70 parts by weight Nano titanium oxide, the acrylic resin of 4-10 parts by weight, the polyimide resin of 4-10 parts by weight are mixed.
The beneficial effect for the degradative membrane construction that the present invention improves is, fire-retardant there is provided two layers between two layers of composite coating Layer, degraded film layer is set between two layers of flame-retardant layer, and degraded film layer is by acrylic resin, starch, ferric stearate, antioxidant, increasing Modeling agent is blended, be granulated after be blow molded and forms, antioxidant and plasticizer are used cooperatively, by increasing capacitance it is possible to increase the mechanical property of degradative membrane, shallow lake Powder is biodegradable, and acrylic resin is become loose, is increased its specific surface area, meanwhile, daylight, heat etc. trigger ferric stearate, lead High polymer chain rupture is caused, molecular weight and molecular weight, makes degradative membrane can be good at degrading, degradative membrane both sides set flame-retardant layer, can improve The fire resistance of degradative membrane, composite coating is by nano silicon, nano titanium oxide, acrylic resin, polyimide resin It is mixed, is coordinated by nano silicon, nano titanium oxide, acrylic resin, polyimide resin, can be effective Improve film light resistance, ageing resistance and anti-ultraviolet optical property；By the setting of sandwich construction, preferable power is made it have Performance and fire resistance are learned, while there is higher degradation rate, moreover it is possible to extends the degradation time of degradative membrane, improves it and be applicable model Enclose.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the structural representation for the degradative membrane construction that 1-4 of the embodiment of the present invention is provided；
Fig. 2 is the structural representation for the degradative membrane construction that the embodiment of the present invention 2 provides；
Fig. 3 is the structural representation for the degradative membrane construction that the embodiment of the present invention 3 provides.
Icon：The composite coatings of 100- first；The flame-retardant layers of 200- first；300- degraded film layers；The flame-retardant layers of 400- second；500- Second composite coating；600- flame-retardant layers.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, it is the conventional production that can be obtained by commercially available purchase Product.
Degradative membrane provided in an embodiment of the present invention construction is specifically described below.
Fig. 1 is refer to, a kind of degradative membrane construction, includes the first composite coating 100, the first flame-retardant layer successively from top to bottom 200th, degraded film layer 300, the second flame-retardant layer 400 and the second composite coating 500.
Wherein, film layer 300 of degrading is by the acrylic resin of 65-80 parts by weight, the starch of 25-35 parts by weight, 0.5-1 weight Part ferric stearate, antioxidant, the plasticizer of 0.2-0.8 parts by weight of 0.1-0.5 parts by weight it is blended, be granulated after be blow molded and Into.
Acrylic resin is translucent colorless solid, odorless, nontoxic.There is the crystallization of height due to its compound with regular structure Change, therefore fusing point is higher, has heat-resisting, corrosion resistant feature, while has excellent mechanical performance, such as tensile strength, in the wrong Intensity is taken, its density is small, is most light general-purpose plastics.Using raw material of the acrylic resin as degradative membrane, not only make degradative membrane With preferable mechanical performance, moreover it is possible to heighten the stability of degradative membrane.
But acrylic resin is more easy to aging, therefore, the mistake that a certain amount of antioxidant can delay degradative membrane to aoxidize is added Journey, the service life of degradative membrane is improved to a certain extent.Preferably, antioxidant is selected from antioxidant 1098, antioxidant 1076, resisted At least one of oxygen agent 1010, wherein antioxidant 1098 have preferable compatibility and heat resistance, can be good at and poly- third Olefine resin is compatible, improves its antioxygenic property.
Plasticizer is a kind of additive for the flexibility for increasing material, and the molten of acrylic resin can be reduced by adding plasticizer Melt the modulus of elasticity of viscosity, glass transition temperature and elastomer, the basic chemical characteristic of material, the present invention are plasticized without changing Added in embodiment plasticizer can and acrylic resin uniformly mix, do not chemically reacted with acrylic resin during mixing, it is mixed Some properties of acrylic resin can be changed after conjunction, the pliability of final finished can be improved.Preferably, plasticizer is selected from lemon At least one of sour tributyl, polycaprolactone, polypropylene glycol adipate.ATBC have good compatibility it is good, Plasticizing efficiency is high, nontoxic, not volatile, weatherability is strong, is a kind of excellent plasticizer.Being coordinated by antioxidant and plasticizer makes With, by increasing capacitance it is possible to increase the mechanical property of degradative membrane.
Nano silicon, the 50-70 weights of first composite coating 100 and the second composite coating 500 by 20-40 parts by weight The amount nano titanium oxide of part, the acrylic resin of 4-10 parts by weight, the polyimide resin of 4-10 parts by weight are mixed.
Nano titanium oxide is fluffy white powder, has good weatherability and dispersiveness, while have stronger screen Cover the function of ultraviolet.But nano titanium oxide is active larger, weatherability is poor, therefore in order to improve nano titanium oxide Weatherability, so as to improve the weatherability of coating material, extend the degradation time of degradative membrane, therefore add nano silicon It is used cooperatively with nano titanium oxide, to reduce the activity of nano titanium oxide, improves the weatherability of coating material.Preferably, The particle diameter of nano titanium oxide is 3-5nm, can improve its dispersiveness, the particle diameter of nano silicon is preferably 5-10nm.
Acrylic resin has preferable light resistance and ageing resistance, and polyimide resin is scentless yellow liquid, With good radiation-resistant property, while a kind of still self-extinguishing polymer, there is good fire resistance, can further improve The fire resistance of degradative membrane.
Preferably, magnesium hydroxide, the 2-4 weights of the first flame-retardant layer 200 and second flame-retardant layer 400 by 5-8 parts by weight The magnesium stearate, the hexone of 10-15 parts by weight of amount part are mixed.
Magnesium hydroxide is a kind of inorganic combustion inhibitor, discharging with reference to water during by being thermally decomposed, absorbing substantial amounts of latent heat, is come The surface temperature of synthetic material that it is filled in flame is reduced, is had and is suppressed polymer and decompose and to caused combustible gas The effect that body is cooled down.Magnesium stearate plays collaboration, is used cooperatively with magnesium hydroxide, hexone, can The effective fire resistance for improving film.
The degradative membrane is made it have preferable mechanical property and fire resistance, had simultaneously by the setting of sandwich construction Higher degradation rate, moreover it is possible to extend the degradation time of degradative membrane, improve its scope of application.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
A kind of degradative membrane constructs (structure is as shown in Figure 1), includes the first composite coating 100, first successively from top to bottom and hinders Layer 200, degraded film layer 300, the second flame-retardant layer 400 and the second composite coating 500 are fired, degraded film layer 300 is by the poly- of 65 parts by weight Allyl resin, the starch of 25 parts by weight, the ferric stearate of 0.5 parts by weight, the antioxidant 1098 of 0.1 parts by weight, 0.2 parts by weight ATBC is blended, be granulated after be blow molded and form, the first composite coating 100 and the second composite coating 500 are by 20 weight The nano silicon, the nano titanium oxide of 50 parts by weight, the acrylic resin of 4 parts by weight, the polyimides of 4 parts by weight of part Resin is mixed；First flame-retardant layer 200 and the second flame-retardant layer 400 are by the magnesium hydroxide of 5 parts by weight, the tristearin of 2 parts by weight Sour magnesium, the hexone of 10 parts by weight are mixed；Wherein, the particle diameter of nano silicon is 5nm, nanometer titanium dioxide The particle diameter of titanium is 3nm.
Embodiment 2
A kind of degradative membrane constructs (structure is as shown in Figure 1), includes the first composite coating 100, first successively from top to bottom and hinders Layer 200, degraded film layer 300, the second flame-retardant layer 400 and the second composite coating 500 are fired, degraded film layer 300 is by the poly- of 80 parts by weight Allyl resin, the starch of 35 parts by weight, the ferric stearate of 1 parts by weight, the antioxidant 1076 of 0.5 parts by weight, 0.8 parts by weight it is poly- Caprolactone is blended, be granulated after be blow molded and form, the first composite coating 100 and the second receiving by 40 parts by weight of composite coating 500 Rice silica, the nano titanium oxide of 70 parts by weight, the acrylic resin of 10 parts by weight, the polyimide resin of 10 parts by weight It is mixed；First flame-retardant layer 200 and the second flame-retardant layer 400 by the magnesium hydroxides of 8 parts by weight, 4 parts by weight magnesium stearate, The hexone of 15 parts by weight is mixed；Wherein, the particle diameter of nano silicon is 10nm, nano titanium oxide Particle diameter is 5nm.
Embodiment 3
A kind of degradative membrane constructs (structure is as shown in Figure 1), includes the first composite coating 100, first successively from top to bottom and hinders Layer 200, degraded film layer 300, the second flame-retardant layer 400 and the second composite coating 500 are fired, degraded film layer 300 is by the poly- of 70 parts by weight Allyl resin, the starch of 30 parts by weight, the ferric stearate of 0.8 parts by weight, the antioxidant 1010 of 0.2 parts by weight, 0.4 parts by weight Polypropylene glycol adipate is blended, be granulated after be blow molded and form, the first composite coating 100 and the second composite coating 500 are by 30 The nano silicon of parts by weight, the nano titanium oxide of 60 parts by weight, the acrylic resin of 5 parts by weight, the polyamides of 5 parts by weight Imide resin is mixed；First flame-retardant layer 200 and the second flame-retardant layer 400 are by the magnesium hydroxides of 6 parts by weight, 3 parts by weight Magnesium stearate, the hexone of 12 parts by weight are mixed；Wherein, the particle diameter of nano silicon is 8nm, nanometer two The particle diameter of titanium oxide is 4nm.
Embodiment 4
A kind of degradative membrane constructs (structure is as shown in Figure 1), includes the first composite coating 100, first successively from top to bottom and hinders Layer 200, degraded film layer 300, the second flame-retardant layer 400 and the second composite coating 500 are fired, degraded film layer 300 is by the poly- of 78 parts by weight Allyl resin, the starch of 32 parts by weight, the ferric stearate of 0.6 parts by weight, the antioxidant 1010 of 0.2 parts by weight, 0.2 parts by weight Antioxidant 1098, the ATBC of 0.2 parts by weight, the polypropylene glycol adipate of 0.2 parts by weight are blended, are granulated after-blow Modeling forms, and the first composite coating 100 and the second composite coating 500 are by the nano silicons of 35 parts by weight, 65 parts by weight Nano titanium oxide, the acrylic resin of 8 parts by weight, the polyimide resin of 8 parts by weight are mixed；First flame-retardant layer 200 And second flame-retardant layer 400 by the magnesium hydroxide of 6 parts by weight, the magnesium stearate of 3 parts by weight, 12 parts by weight methyl-isobutyl first Ketone is mixed；Wherein, the particle diameter of nano silicon is 8nm, and the particle diameter of nano titanium oxide is 4nm.
Comparative example 1
A kind of degradative membrane constructs (structure is as shown in Figure 2), includes the first flame-retardant layer 200, degraded film layer successively from top to bottom 300th, the second flame-retardant layer 400, degraded film layer 300 is by the acrylic resin of 65 parts by weight, the starch of 25 parts by weight, 0.5 parts by weight Ferric stearate, antioxidant 1098, the ATBC of 0.2 parts by weight of 0.1 parts by weight it is blended, be granulated after be blow molded and Into the first composite coating 100 and the second composite coating 500 are by the nano silicon of 20 parts by weight, the nanometer of 50 parts by weight Titanium dioxide, the acrylic resin of 4 parts by weight, the polyimide resin of 4 parts by weight are mixed；Wherein, nano silicon Particle diameter be 5nm, the particle diameter of nano titanium oxide is 3nm.
Comparative example 2
A kind of degradative membrane constructs (structure is as shown in Figure 3), includes the first composite coating 100, degradative membrane successively from top to bottom Layer 300, flame-retardant layer 600, degraded film layer 300 is by the acrylic resins of 65 parts by weight, the starch of 25 parts by weight, 0.5 parts by weight Ferric stearate, the antioxidant 1098 of 0.1 parts by weight, the ATBC of 0.2 parts by weight be blended, be granulated after be blow molded and form, First composite coating 100 by the nano silicon of 20 parts by weight, the nano titanium oxide of 50 parts by weight, 4 parts by weight propylene Acid resin, the polyimide resin of 4 parts by weight are mixed；Flame-retardant layer 600 by the magnesium hydroxides of 5 parts by weight, 2 parts by weight it is hard Fatty acid magnesium, the hexone of 10 parts by weight are mixed；Wherein, the particle diameter of nano silicon is 5nm, nano-silica The particle diameter for changing titanium is 3nm.
Experimental example
Degradative membrane is prepared by embodiment 1-4 and comparative example 1-2 degradative membrane construction, and its performance is tested, as a result As shown in table 1.
Table 1
Tensile strength (MPa) Degraded number of days (d) Degradation rate (%)
Embodiment 1 75 320 96
Embodiment 2 72 315 96
Embodiment 3 76 328 98
Embodiment 4 75 318 95
Comparative example 1 62 230 89
Comparative example 2 64 240 86
Commercially available degradative membrane 26 200 80
As it can be seen from table 1 preparing degradative membrane by embodiment 1-4 degradative membrane construction, tensile strength and degradation rate are slightly higher In comparative example 1 and comparative example 2, total number of days of degraded is far above comparative example 1 and comparative example 2, is constructed by embodiment 1-4 degradative membrane Degradative membrane is prepared, tensile strength, degradation rate, total number of days of degraded are all far above commercially available degradative membrane, and the result shows the degradative membrane By the setting of sandwich construction, preferable mechanical property and fire resistance are made it have, while there is higher degradation rate, moreover it is possible to Extend the degradation time of degradative membrane, improve its scope of application.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (7)

  1. A kind of 1. degradative membrane construction, it is characterised in that：Include the first composite coating, the first flame-retardant layer, degraded successively from top to bottom Film layer, the second flame-retardant layer and the second composite coating, the acrylic resin of the degraded film layer by 65-80 parts by weight, 25-35 weight The starch, the ferric stearate of 0.5-1 parts by weight, the antioxidant of 0.1-0.5 parts by weight, the plasticizer warp of 0.2-0.8 parts by weight of part Mixing, be blow molded and form after being granulated, first composite coating and second composite coating by 20-40 parts by weight nanometer two Silica, the nano titanium oxide of 50-70 parts by weight, the acrylic resin of 4-10 parts by weight, the polyimides of 4-10 parts by weight Resin is mixed.
  2. 2. degradative membrane construction according to claim 1, it is characterised in that：First flame-retardant layer and second flame-retardant layer System is mixed by the hexone of the magnesium hydroxide of 5-8 parts by weight, the magnesium stearate of 2-4 parts by weight, 10-15 parts by weight Into.
  3. 3. degradative membrane construction according to claim 2, it is characterised in that：First flame-retardant layer and second flame-retardant layer It is mixed by the hexone of the magnesium hydroxide of 6 parts by weight, the magnesium stearate of 3 parts by weight, 12 parts by weight.
  4. 4. degradative membrane construction according to claim 1, it is characterised in that：The antioxidant is selected from antioxidant 1098, resisted At least one of oxygen agent 1076, antioxidant 1010.
  5. 5. degradative membrane construction according to claim 1, it is characterised in that：The plasticizer is selected from ATBC, gathered At least one of caprolactone, polypropylene glycol adipate.
  6. 6. degradative membrane construction according to claim 1, it is characterised in that：The particle diameter of the nano silicon is 5- 10nm。
  7. 7. degradative membrane construction according to claim 1, it is characterised in that：The particle diameter of the nano titanium oxide is 3-5nm.
CN201710852339.8A 2017-09-19 2017-09-19 Degradable film Expired - Fee Related CN107488303B (en)

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CN110126402A (en) * 2019-03-28 2019-08-16 四川三合坡面科技有限公司 A kind of degradative membrane of multilayer degradation
CN112874091A (en) * 2021-01-14 2021-06-01 罗兰博 Anti-aging biodegradable film and preparation method and application thereof
CN114644783A (en) * 2020-12-18 2022-06-21 苏州恒悦新材料有限公司 Environment-friendly degradable protective film

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CN103587187A (en) * 2013-05-22 2014-02-19 上海优珀斯材料科技有限公司 Controllable degradation antiadherent film and preparation method
CN104553215A (en) * 2013-10-16 2015-04-29 北京化工大学 Transparent, flame-retardant, thermal-insulation and anti-ultraviolet polymer composite film as well as preparation method and application thereof
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CN101805463A (en) * 2010-04-16 2010-08-18 深圳市科聚新材料有限公司 Starch filled biodegradable polypropylene and preparation method thereof
CN103587187A (en) * 2013-05-22 2014-02-19 上海优珀斯材料科技有限公司 Controllable degradation antiadherent film and preparation method
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CN110126402A (en) * 2019-03-28 2019-08-16 四川三合坡面科技有限公司 A kind of degradative membrane of multilayer degradation
CN114644783A (en) * 2020-12-18 2022-06-21 苏州恒悦新材料有限公司 Environment-friendly degradable protective film
CN112874091A (en) * 2021-01-14 2021-06-01 罗兰博 Anti-aging biodegradable film and preparation method and application thereof
CN112874091B (en) * 2021-01-14 2023-11-28 罗兰博 Aging-resistant biodegradable film and preparation method and application thereof

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