CN117384474A - High-strength composite film and preparation method thereof - Google Patents
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- CN117384474A CN117384474A CN202311410099.8A CN202311410099A CN117384474A CN 117384474 A CN117384474 A CN 117384474A CN 202311410099 A CN202311410099 A CN 202311410099A CN 117384474 A CN117384474 A CN 117384474A
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- 239000002131 composite material Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 10
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical class O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 15
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 15
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 15
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 15
- 239000000853 adhesive Substances 0.000 claims abstract description 9
- 230000001070 adhesive effect Effects 0.000 claims abstract description 9
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 9
- 239000004014 plasticizer Substances 0.000 claims abstract description 5
- 230000033444 hydroxylation Effects 0.000 claims abstract description 4
- 238000005805 hydroxylation reaction Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 16
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000010096 film blowing Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 3
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 3
- 229920006332 epoxy adhesive Polymers 0.000 claims description 3
- 239000000600 sorbitol Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 239000003522 acrylic cement Substances 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 239000012528 membrane Substances 0.000 claims 1
- 229920001896 polybutyrate Polymers 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 6
- 229920002678 cellulose Polymers 0.000 abstract description 5
- 239000001913 cellulose Substances 0.000 abstract description 5
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000009210 therapy by ultrasound Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229920005839 ecoflex® Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 150000004676 glycans Chemical group 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- 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
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/02—Cellulose; Modified cellulose
-
- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
Abstract
The invention belongs to the technical field of composite materials, and in particular relates to a high-strength composite film and a preparation method thereof, wherein the high-strength composite film comprises the following components in parts by weight: 20-40 parts of PBAT, 25-50 parts of PLA, 5-10 parts of cellulose, 3-6 parts of plasticizer, 2-5 parts of adhesive and 4-8 parts of modified montmorillonite; wherein the modified montmorillonite is a product obtained by grafting carboxymethyl cellulose with hydroxylated montmorillonite, and the montmorillonite is subjected to hydroxylation treatment in advance. The modified montmorillonite obtained by grafting the hydroxylated montmorillonite with the carboxymethyl cellulose is used as a component to be compounded with components such as PBAT, PLA, an auxiliary agent and the like, so that the components have better compatibility, the mechanical strength of the composite film is effectively improved, the composite film has stronger stability, can be stably used for a long time under various conditions, overcomes the defects in the prior art, and has good application prospect.
Description
Technical Field
The invention belongs to the technical field of composite materials, and particularly relates to a high-strength composite film and a preparation method thereof.
Background
With the development of the age, the environmental awareness of people is stronger, the traditional polyethylene, polyvinyl chloride and other materials have strong stability, low cost and wide application range, but due to the defects of difficult degradation and larger damage to the environment, the materials are gradually reduced in use, and instead of the materials, such as PBAT and other degradable materials with better environmental friendliness, the materials can be completely changed into carbon dioxide and water in a biodegradation mode after being abandoned, so that the problem of white pollution is solved.
In practical application of plastic films, the plastic films are required to have higher mechanical properties such as tensile strength and elongation, and meanwhile, according to differences of application fields, the plastic films are also required to have different properties such as durability, stability and light transmittance. For example, in an open air environment, the film needs to bear the sun-drying in the air for a long time without aging, and meanwhile, the heat resistance, the water resistance, the acid and alkali resistance and other capacities are ensured, so that the performance of the PBAT composite material is also more required.
Currently, the prior art generally employs methods of changing the composition of the plastic to achieve enhancement of specific functions of the film. However, the means of modifying the organic polymer or adding the novel polymer has a great influence on the production process and cost of the product, while the method of adding inorganic fillers such as sulfate, carbonate, silicon dioxide, metal oxide and the like is more mature and simple, but the compatibility between the inorganic fillers and the organic materials is lower, the inorganic fillers are difficult to uniformly distribute in the resin, the processing effect is influenced, and the stability and mechanical properties of the product may be negatively affected. Therefore, how to solve the above problems is a difficult problem faced in the art.
In view of the foregoing, there is a need to develop a new technical solution to solve the defects existing in the prior art, and meet the development requirements of the current market.
Disclosure of Invention
Based on the method, the modified montmorillonite obtained by grafting the hydroxylated montmorillonite with the carboxymethyl cellulose is used as a component to be compounded with components such as PBAT, PLA, an auxiliary agent and the like, so that the components have better compatibility, the mechanical strength of the composite film is effectively improved, the stability is stronger, the composite film can be stably used for a long time under various conditions, the defects in the prior art are overcome, and the composite film has good application prospect.
The invention aims to provide a high-strength composite film, which comprises the following components in parts by weight:
wherein the modified montmorillonite is a product obtained by grafting hydroxylation montmorillonite with carboxymethyl cellulose.
Further, the plasticizer is one or more selected from glycerol, alcohol ester twelve, sorbitol and glycol.
Further, the adhesive is selected from one or more of acrylic adhesives, epoxy adhesives, polyurethane adhesives.
Further, the montmorillonite is subjected to hydroxylation treatment in advance.
Another object of the present invention is to provide a method for preparing the above high strength composite film, the method for preparing the high strength composite film comprising the steps of:
s1, blending hydroxylated montmorillonite and carboxymethyl cellulose, putting into water, and carrying out ultrasonic and heating stirring to obtain modified montmorillonite;
s2, blending the modified montmorillonite and other components, putting the mixture into an extruder for melt blending, discharging and cooling to obtain master batch;
and S3, adding the master batch into a film blowing machine for extrusion film formation, and obtaining a product.
Further, in step S1, the heating temperature is 80-90 ℃.
Further, in step S2, the melting temperature is 140-150 ℃.
Further, in step S3, the film thickness is 0.3-2mm.
Further, in step S2, the extruder is a twin screw extruder.
The invention has the beneficial effects that:
in the high-strength composite film provided by the invention, PBAT and PLA are adopted as matrix resins to be compounded with components such as modified montmorillonite, cellulose, plasticizer, adhesive and the like, wherein the modified montmorillonite is montmorillonite grafted with carboxymethyl cellulose, and the high-activity hydroxyl on the surface of the modified montmorillonite reacts with carboxyl in carboxymethyl cellulose, so that a cellulose structure is introduced on the surface of inorganic particles, so that a large number of active groups such as polysaccharide, hydroxyl and carboxyl are arranged on the surface of the modified filler, the modified filler can be more uniformly distributed in the composite material, the compatibility among other components is improved, and meanwhile, the modified filler is easy to form intermolecular acting force with oxygen-containing functional groups in auxiliaries (such as cellulose, epoxy resin adhesive and the like) to generate a synergistic effect, so that the stability and mechanical property of a product are greatly enhanced, and a better film forming effect can be given to the material. The high-strength composite film has good mechanical properties, high stability, green environmental protection and biodegradability, overcomes the defects in the prior art, and has good application prospect.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following examples are set forth. The starting materials, reactions and workup procedures used in the examples are those commonly practiced in the market and known to those skilled in the art unless otherwise indicated.
The words "preferred," "more preferred," and the like in the present disclosure refer to embodiments of the present disclosure that may provide certain benefits in some instances. However, other embodiments may be preferred under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
It should be understood that, except in any operating examples, or where otherwise indicated, quantities or all numbers expressing, for example, quantities of ingredients used in the specification and claims are to be understood as being modified in all instances by the term "about". Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and attached claims are approximations that may vary depending upon the desired properties to be obtained by the present invention.
In the embodiment of the invention, PBAT is Basoff Ecoflex C1200; PLA is Nature works 4032D.
In the embodiment of the invention, the cellulose is carboxymethyl cellulose.
In the embodiment of the invention, the plasticizer is glycerin and sorbitol with the mass ratio of 1:1.
In the embodiment of the invention, the adhesive is an E44 epoxy adhesive.
In the embodiment of the invention, the preparation method of the hydroxylated montmorillonite comprises the following steps:
soaking montmorillonite powder in 5mol/L sodium hydroxide solution, performing ultrasonic treatment for 5h, washing to neutrality, drying, mixing with glucose (montmorillonite: glucose=1:5, m/m), performing ball milling (ball-to-material ratio 5:1), washing, centrifuging, and drying to obtain hydroxylated montmorillonite.
In the embodiment of the invention, "parts" refer to parts by weight.
Example 1
The high-strength composite film comprises the following components in parts by weight:
the preparation method of the high-strength composite film comprises the following steps:
s1, mixing hydroxylated montmorillonite and carboxymethyl cellulose in a mass ratio of 1:5 by taking water as a solvent, performing ultrasonic treatment at 85 ℃ for 3 hours, washing and drying to obtain modified montmorillonite;
s2, blending the modified montmorillonite and other components according to the parts by weight, putting the mixture into a double-screw extruder for melt blending at 150 ℃, discharging and cooling to obtain master batch;
s3, adding the master batch into a film blowing machine, and extruding to form a film, so that a product with the thickness of 0.5mm is obtained.
Example 2
The high-strength composite film comprises the following components in parts by weight:
the preparation method of the high-strength composite film comprises the following steps:
s1, mixing hydroxylated montmorillonite and carboxymethyl cellulose in a mass ratio of 1:5 by taking water as a solvent, performing ultrasonic treatment at 85 ℃ for 3 hours, washing and drying to obtain modified montmorillonite;
s2, blending the modified montmorillonite and other components according to the parts by weight, putting the mixture into a double-screw extruder for melt blending at 150 ℃, discharging and cooling to obtain master batch;
s3, adding the master batch into a film blowing machine, and extruding to form a film, so that a product with the thickness of 0.5mm is obtained.
Example 3
The high-strength composite film comprises the following components in parts by weight:
the preparation method of the high-strength composite film comprises the following steps:
s1, mixing hydroxylated montmorillonite and carboxymethyl cellulose in a mass ratio of 1:5 by taking water as a solvent, performing ultrasonic treatment at 80 ℃ for 3 hours, washing and drying to obtain modified montmorillonite;
s2, blending the modified montmorillonite and other components according to the parts by weight, putting the mixture into a double-screw extruder for melt blending at 150 ℃, discharging and cooling to obtain master batch;
s3, adding the master batch into a film blowing machine, and extruding to form a film, so that a product with the thickness of 0.5mm is obtained.
Comparative example 1
The comparative example differs from example 1 in that: the montmorillonite and carboxymethyl cellulose in the mass ratio of 1:5 are physically blended, and the obtained mixture is replaced by the modified montmorillonite in equal mass, and other components and preparation methods are the same as in example 1.
Comparative example 2
The comparative example differs from example 1 in that: in step S1, stearic acid was used instead of carboxymethyl cellulose, and other components and preparation methods were the same as in example 1.
Test case
Performance tests were performed on the high strength composite films prepared in examples 1-3 and comparative examples 1-2.
The testing method comprises the following steps: mechanical property testing is carried out according to the method in GB/T1040.2-2006 standard. After the sample was left at a constant temperature of 50℃for 180D, the tensile strength was retested.
The test results are shown in Table 1.
TABLE 1 Performance test results
As can be seen from Table 1, the high-strength composite film prepared in examples 1-3 of the present invention has good mechanical properties, and at the same time, maintains high performance after long-term placement in a high-temperature environment; in comparative examples 1 to 2, however, the compatibility between the components was lowered due to the replacement of the modified montmorillonite components, and no desired improvement in performance could be obtained, and the various properties were lower than those of examples. In conclusion, the invention solves the defects in the existing products and has important significance for further development and application of the composite film.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. The high-strength composite film is characterized by comprising the following components in parts by weight:
wherein the modified montmorillonite is a product obtained by grafting hydroxylation montmorillonite with carboxymethyl cellulose.
2. The high strength composite film according to claim 1, wherein the plasticizer is selected from one or more of glycerol, alcohol ester dodecanol, sorbitol, ethylene glycol.
3. The high strength composite film according to claim 1, wherein the adhesive is selected from one or more of an acrylic adhesive, an epoxy adhesive, a polyurethane adhesive.
4. The high strength composite membrane of claim 1 wherein the montmorillonite is pre-hydroxylated.
5. The method for producing a high-strength composite film according to any one of claims 1 to 4, comprising the steps of:
s1, blending hydroxylated montmorillonite and carboxymethyl cellulose, putting into water, and carrying out ultrasonic and heating stirring to obtain modified montmorillonite;
s2, blending the modified montmorillonite and other components, putting the mixture into an extruder for melt blending, discharging and cooling to obtain master batch;
and S3, adding the master batch into a film blowing machine for extrusion film formation, and obtaining a product.
6. The method of producing a high-strength composite film according to claim 5, wherein in step S1, the heating temperature is 80 to 90 ℃.
7. The method of producing a high-strength composite film according to claim 5, wherein in step S2, the melting temperature is 140 to 150 ℃.
8. The method for producing a high-strength composite film according to claim 5, wherein in step S3, the film thickness is 0.3 to 2mm.
9. The method for producing a high-strength composite film according to claim 5, wherein in step S2, the extruder is a twin-screw extruder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311410099.8A CN117384474A (en) | 2023-10-27 | 2023-10-27 | High-strength composite film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311410099.8A CN117384474A (en) | 2023-10-27 | 2023-10-27 | High-strength composite film and preparation method thereof |
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| CN117384474A true CN117384474A (en) | 2024-01-12 |
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| CN202311410099.8A Pending CN117384474A (en) | 2023-10-27 | 2023-10-27 | High-strength composite film and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921108A (en) * | 2016-05-28 | 2016-09-07 | 中国科学院新疆理化技术研究所 | Preparation method and application of montmorillonoid and carbon composite material |
| CN106881929A (en) * | 2017-01-20 | 2017-06-23 | 山东农业大学 | A kind of polyadipate butylene terephthalate/starch high-barrier composite membrane and preparation method thereof |
| CN109825048A (en) * | 2019-02-20 | 2019-05-31 | 华南理工大学 | A kind of PLA/PBAT composite material and preparation method |
| CN113199665A (en) * | 2021-05-11 | 2021-08-03 | 段付文 | Production process of PLA (polylactic acid) degradable plastic |
| CN114369346A (en) * | 2021-11-30 | 2022-04-19 | 苏州星火丰盈环保包装有限公司 | Biodegradable plastic garbage bag and preparation method thereof |
| CN116731489A (en) * | 2023-07-18 | 2023-09-12 | 四川农业大学 | Degradable antibacterial composite preservative film and preparation method thereof |
-
2023
- 2023-10-27 CN CN202311410099.8A patent/CN117384474A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921108A (en) * | 2016-05-28 | 2016-09-07 | 中国科学院新疆理化技术研究所 | Preparation method and application of montmorillonoid and carbon composite material |
| CN106881929A (en) * | 2017-01-20 | 2017-06-23 | 山东农业大学 | A kind of polyadipate butylene terephthalate/starch high-barrier composite membrane and preparation method thereof |
| CN109825048A (en) * | 2019-02-20 | 2019-05-31 | 华南理工大学 | A kind of PLA/PBAT composite material and preparation method |
| CN113199665A (en) * | 2021-05-11 | 2021-08-03 | 段付文 | Production process of PLA (polylactic acid) degradable plastic |
| CN114369346A (en) * | 2021-11-30 | 2022-04-19 | 苏州星火丰盈环保包装有限公司 | Biodegradable plastic garbage bag and preparation method thereof |
| CN116731489A (en) * | 2023-07-18 | 2023-09-12 | 四川农业大学 | Degradable antibacterial composite preservative film and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张新昌: "《包装概论》", 31 December 2019, 文化发展出版社, pages: 59 * |
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