CN112778458B - Adhesive resin for multilayer co-extruded film and preparation method thereof - Google Patents
Adhesive resin for multilayer co-extruded film and preparation method thereof Download PDFInfo
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- CN112778458B CN112778458B CN202011632636.XA CN202011632636A CN112778458B CN 112778458 B CN112778458 B CN 112778458B CN 202011632636 A CN202011632636 A CN 202011632636A CN 112778458 B CN112778458 B CN 112778458B
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- extruded film
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- 239000004840 adhesive resin Substances 0.000 title claims abstract description 25
- 229920006223 adhesive resin Polymers 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 8
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 239000011347 resin Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000012943 hotmelt Substances 0.000 claims abstract description 4
- 230000001678 irradiating effect Effects 0.000 claims abstract description 4
- -1 polypropylene Polymers 0.000 claims description 7
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 3
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 3
- RPQRDASANLAFCM-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate Chemical compound C=CC(=O)OCC1CO1 RPQRDASANLAFCM-UHFFFAOYSA-N 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 2
- 229920013716 polyethylene resin Polymers 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 229920005672 polyolefin resin Polymers 0.000 abstract description 13
- 239000000571 coke Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 17
- 238000000034 method Methods 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 150000002978 peroxides Chemical group 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 2
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
- MPIAGWXWVAHQBB-UHFFFAOYSA-N [3-prop-2-enoyloxy-2-[[3-prop-2-enoyloxy-2,2-bis(prop-2-enoyloxymethyl)propoxy]methyl]-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(COC(=O)C=C)(COC(=O)C=C)COCC(COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C MPIAGWXWVAHQBB-UHFFFAOYSA-N 0.000 description 1
- SORGEQQSQGNZFI-UHFFFAOYSA-N [azido(phenoxy)phosphoryl]oxybenzene Chemical compound C=1C=CC=CC=1OP(=O)(N=[N+]=[N-])OC1=CC=CC=C1 SORGEQQSQGNZFI-UHFFFAOYSA-N 0.000 description 1
- 125000002009 alkene group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012949 free radical photoinitiator Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/06—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides adhesive resin for a multilayer co-extruded film and a preparation method thereof, belonging to the technical field of adhesive resin. The raw materials of the adhesive resin are polyolefin resin, a photoinitiator, a graft, a polyfunctional group grafting aid and other processing aids. The specific preparation method comprises the following steps: adding polyolefin resin, a photoinitiator, a graft, a polyfunctional group grafting aid and other processing aids into a mixer and uniformly mixing; and (3) putting the mixed materials into a double-screw extruder for mixing and extruding into strips, irradiating and grafting the strips in the hot melt through an ultraviolet radiation illuminator, and cooling and granulating the strips to obtain the bonding resin for the multilayer co-extruded film. The preparation method of the adhesive resin for the co-extruded film, disclosed by the invention, is to graft outside the screw, so that the problem that the product is easy to generate gel and coke materials is solved. And the grafting rate can be controlled by adjusting the formula, the irradiation intensity of an ultraviolet lamp and the length of an ultraviolet lamp tube, so that a product with high grafting rate is produced.
Description
Technical Field
The invention belongs to the technical field of adhesive resin, and particularly relates to adhesive resin for a multilayer co-extruded film and a preparation method thereof.
Background
With the continuous improvement of the comprehensive performance of the film and the mature development of the co-extrusion technology, the multi-layer structure film is a common design. The use of different materials in each layer allows for the integration of properties to provide multiple properties simultaneously on a single film. But often there is not a good affinity between materials of different characteristics. Therefore, a material is needed to combine them to ensure the peeling force between the layers, and the material is the adhesive resin.
There are generally two methods of producing the adhesive resin for multilayer coextruded films. The first one is copolymerization, which is prepared by polymerizing monomers in a reaction kettle, and has large equipment investment and difficult process technology. The products are mainly imported, such as EAA and the like, and the products are expensive. The second one is blending melt grafting, only a double-screw extruder is needed, the equipment investment is low, and the process is simple. However, this method also has many disadvantages. The fluidity of the resin is poor after grafting, dead glue is easily formed in a screw after continuous production for a long time and is randomly brought out along with a melt, so that gel and coke materials exist in the adhesive resin, and a film produced by using the adhesive resin is easy to form fish eyes or crystal points and the like. And after the machine is stopped due to the existence of an initiator, materials are still in the screw, so that the screw is required to be stopped and cleaned due to resin crosslinking, and the production efficiency is greatly influenced. The blending melt grafting is limited by the length of a screw and the extrusion temperature, and the grafting rate of the product is generally about 1 percent at most.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an adhesive resin for a multilayer co-extruded film and a preparation method thereof. The preparation method of the adhesive resin for the co-extruded film, disclosed by the invention, is to graft outside the screw, so that the problem that the product is easy to generate gel and coke materials is solved. And the grafting rate can be controlled by adjusting the formula, the irradiation intensity of an ultraviolet lamp and the length of an ultraviolet lamp tube, so that a product with high grafting rate is produced.
The technical scheme of the invention is as follows:
the adhesive resin for the multilayer co-extruded film comprises the following raw materials in percentage by mass:
the polyolefin resin includes a saturated polyolefin resin and/or an unsaturated polyolefin resin.
The photoinitiator is a free radical photoinitiator; preferably at least one of BP, 184, MK, CTX or IPBE.
The graft is at least one of maleic anhydride, glycidyl acrylate, maleic acid or acrylic acid.
The polyfunctional group grafting aid is an active monomer with two or more active alkene functional groups; preferably at least one of TMPTA, TAIC, TMPTMA, PETA, DPHA or DPPA.
The other processing aids are one or more of antioxidants, dispersants or lubricants.
The antioxidant is at least one of 1010, DLTP, 168, 1035 or 300; the dispersant is at least one of polyethylene wax, stearic acid or polypropylene wax; the lubricant is at least one of silicone oil, white oil or PPA.
A preparation method of an adhesive resin for a multilayer co-extruded film comprises the following steps:
(1) Adding polyolefin resin, a photoinitiator, a graft, a polyfunctional group grafting aid and other processing aids into a mixer and uniformly mixing;
(2) And (3) putting the mixed materials into a double-screw extruder for mixing and extruding into strips, irradiating and grafting the strips in the hot melt through an ultraviolet radiation illuminator, and cooling and granulating the strips to obtain the bonding resin for the multilayer co-extruded film.
The wavelength of the ultraviolet radiation lamp in the step (2) is 365nm, and the energy position of the lamp is 10J/cm 2 The light irradiation time was 15s.
The beneficial technical effects of the invention are as follows:
the material in the invention has only mixing effect in the double-screw extruder, and the fluidity of the material in the screw is basically unchanged. After the materials are extruded, the melt is irradiated by an ultraviolet lamp, the photoinitiator is excited and cracked to generate free radicals, graft is initiated to be grafted to a polyolefin molecular chain, and the graft is grafted outside a screw, so that the problem that the product is easy to generate gel and coke materials is solved. Because the grafting is carried out outside the screw, the grafting is not influenced by the factors such as melt flow rate, incomplete grafting reaction in the screw and the like, and the high-grafting-rate product can be produced by increasing the dosage of the photoinitiator, the grafting assistant agent and the like and improving the irradiation energy and time.
Detailed Description
The present invention will now be described in detail with reference to the following examples.
Examples 1 to 3: the preparation method of the adhesive resin for the multilayer coextruded film is characterized in that the adhesive resin for the multilayer coextruded film is used for the multilayer coextruded film and comprises the following components in parts by weight:
TABLE 1
| Example 1 | Example 2 | Example 3 | |
| Polyolefin resin | 100 portions of | 100 portions of | 100 portions of |
| Photoinitiator(s) | 0.01 part | 0.03 part | 0.1 part |
| Graft material | 0.5 portion | 1 part of | 3 portions of |
| Multifunctional group grafting aid | 0.01 part | 0.03 part | 0.1 part of |
| Other auxiliaries | 1 part of | 1.5 parts of | 2 portions of |
In example 1, the polyolefin resin was a polyethylene butadiene resin, the photoinitiator was 184, the graft was maleic anhydride, the polyfunctional group co-grafting agent was TAIC, the antioxidant was 1010, the dispersant was polyethylene wax, and the lubricant was silicone oil. In example 2, the polyolefin resin is ethylene-butylene copolymer resin, the photoinitiator is 369, the graft is maleic acid, the polyfunctional group co-grafting agent is TMPTMA, the antioxidant is DLTP, the dispersant is stearic acid, and the lubricant is white oil. In example 3, the polyolefin resin is polyethylene resin, the photoinitiator is BP, the graft is glycidyl acrylate, the polyfunctional group co-grafting agent is TMPTA, the antioxidant is 1035, the dispersant is polypropylene wax, and the lubricant is PPA.
The adhesive resin for the multilayer co-extruded film is prepared by the following steps:
(1) Weighing the polyolefin resin, the photoinitiator, the graft, the multifunctional group grafting aid and other processing aids in the formula according to the weight ratio, and adding the materials into a high-speed mixer for uniformly mixing;
(2) Mixing the above mixed materials in a twin screw extruder, extruding into strips, irradiating and grafting the strips with hot melt by an ultraviolet radiation lamp, cooling, and cutting into granules to obtain the materials of example 1, example 2, and example 3, wherein the wavelength of the ultraviolet radiation lamp is 365nm, and the energy level of the lamp is 10J/cm 2 The illumination time was 15s.
Comparative examples 1 to 2: the preparation method of the adhesive resin for the multilayer coextruded film is characterized in that the adhesive resin for the multilayer coextruded film is used for the multilayer coextruded film and comprises the following components in parts by weight:
TABLE 2
| Comparative example 1 | Comparative example 2 | |
| Polyolefin resin | 100 portions of | 100 portions of |
| Photoinitiator(s) | 0 portion of | 0 portion of |
| Thermal decomposition of peroxides | 0.03 part | 0.1 part of |
| Graft polymer | 1 part of | 3 portions of |
| Multifunctional group grafting aid | 0.03 part | 0.1 part of |
| Other auxiliaries | 1.5 parts of | 2 portions of |
The adhesive resin for the multilayer coextruded film is prepared by the following steps of comparative example 1 and comparative example 2:
(1) Weighing the polyolefin resin, the thermal decomposition peroxide, the graft, the polyfunctional group grafting aid and other processing aids in the formula according to the weight ratio, and adding the materials into a high-speed mixer for uniformly mixing;
(2) And (3) putting the mixed materials into a double-screw extruder, mixing, grafting, drawing strips, cooling and granulating to obtain a comparative example 1 and a comparative example 2.
Comparative examples 1 to 2:
comparative example 1, prepared according to the scheme of example 2, except that, change photoinitiator into equal amount of thermal decomposition peroxide, remove the ultraviolet light grafting process in the preparation process at the same time, change and use the melting grafting in the screw, obtain comparative example 1;
comparative example 2 was prepared according to the procedure of example 3 except that the photoinitiator was changed to an equivalent amount of thermally decomposed peroxide, and the ultraviolet light grafting process was removed during the preparation process and melt-grafted in a screw to obtain comparative example 2.
The grafting rate was determined according to standard Q/HCHX 3-2016; according to a visual method, after continuous production is carried out for 7 days, 100 particles are taken, and the number of coke particles in the particles is detected; the melt index was measured at 190 ℃ under 2.16kg conditions in accordance with GB/T3682-2018. The adhesive resin property test data for the multilayer coextruded films prepared in each of examples 1 to 3 and comparative examples 1 to 2 are as follows:
TABLE 3
As shown in Table 3, in each example of the present invention, compared with comparative examples 1 and 2, after 7 days of continuous production, there was no scorch in the particles, indicating that the ultraviolet irradiation grafting technique can substantially prevent the scorch from being generated during the continuous production; example 2 compared with comparative example 1 and comparative example 2, respectively, the grafting rate was greatly improved under the condition of the same amount of added grafts, which indicates that the grafting rate is greatly improved by ultraviolet irradiation grafting; example 2 compared with comparative example 2, the melt flow rate change rate is smaller, and the side surface reflects that ultraviolet irradiation grafting can reduce crosslinked gel.
Therefore, the preparation method of the adhesive resin for the multilayer co-extrusion film, disclosed by the invention, has the advantages that the traditional melt grafting is replaced by the ultraviolet grafting technology, and the grafting is carried out outside the screw, so that the problem that the product is easy to generate gel and coke materials is solved. And the grafting rate can be controlled by adjusting the formula, the irradiation intensity of an ultraviolet lamp and the length of an ultraviolet lamp tube, so that a product with high grafting rate is produced.
The above embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this means. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (1)
1. A preparation method of adhesive resin for a multilayer co-extruded film is characterized by comprising the following steps:
(1) Adding 100 parts by weight of polyethylene resin, 0.1 part by weight of photoinitiator BP, 3 parts by weight of glycidyl acrylate, 0.1 part by weight of TMPTA and 2 parts by weight of other processing aids into a mixer, and uniformly mixing;
(2) Mixing the mixed materials in a double-screw extruder, extruding and bracing, irradiating and grafting material strips in a hot melt through an ultraviolet radiation lamp, and cooling and dicing the material strips to obtain bonding resin for the multilayer co-extruded film; the wavelength of the ultraviolet radiation lamp is 365nm, and the energy level of the lamp is 10J/cm 2 The illumination time is 15s;
the other processing aid is a mixture of an antioxidant 1035, a dispersant polypropylene wax, and a lubricant PPA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011632636.XA CN112778458B (en) | 2020-12-31 | 2020-12-31 | Adhesive resin for multilayer co-extruded film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011632636.XA CN112778458B (en) | 2020-12-31 | 2020-12-31 | Adhesive resin for multilayer co-extruded film and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112778458A CN112778458A (en) | 2021-05-11 |
| CN112778458B true CN112778458B (en) | 2022-11-29 |
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| CN100443518C (en) * | 2006-09-06 | 2008-12-17 | 江苏工业学院 | Method of palliating degradation degree in polypropylene fusion graft process |
| CN105418851B (en) * | 2015-12-18 | 2019-05-14 | 华南理工大学 | A kind of ultraviolet light irradiation causes the preparation method of grafting maleic anhydride on molten polypropylene |
| CN106632866A (en) * | 2017-01-05 | 2017-05-10 | 合肥光冉高分子材料科技有限公司 | Ultraviolet-light crosslinked polyethylene wire-cable material and preparation method thereof |
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