CN115216036B - Composite material for self-adhesive film and preparation method thereof - Google Patents
Composite material for self-adhesive film and preparation method thereof Download PDFInfo
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- 239000002313 adhesive film Substances 0.000 title claims abstract description 56
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 42
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 38
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 38
- -1 polyethylene Polymers 0.000 claims description 19
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 14
- 239000003999 initiator Substances 0.000 claims description 14
- 229910052740 iodine Inorganic materials 0.000 claims description 14
- 239000011630 iodine Substances 0.000 claims description 14
- 150000003254 radicals Chemical class 0.000 claims description 14
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical class C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 239000005977 Ethylene Substances 0.000 claims description 11
- 239000004698 Polyethylene Substances 0.000 claims description 10
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 10
- 229910000077 silane Inorganic materials 0.000 claims description 10
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 8
- 239000003963 antioxidant agent Substances 0.000 claims description 8
- 230000003078 antioxidant effect Effects 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 229920005653 propylene-ethylene copolymer Polymers 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 229920001897 terpolymer Polymers 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 claims description 7
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 5
- 230000000379 polymerizing effect Effects 0.000 claims description 5
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- 229920006027 ternary co-polymer Polymers 0.000 claims description 2
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 claims description 2
- UBWFWCYQLDDVFQ-ARJAWSKDSA-N (z)-4-oxo-4-prop-2-enoyloxybut-2-enoic acid Chemical compound OC(=O)\C=C/C(=O)OC(=O)C=C UBWFWCYQLDDVFQ-ARJAWSKDSA-N 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 12
- 239000000835 fiber Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 7
- 239000005022 packaging material Substances 0.000 abstract description 6
- 229940127554 medical product Drugs 0.000 abstract description 3
- 230000003373 anti-fouling effect Effects 0.000 abstract 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 31
- 230000001070 adhesive effect Effects 0.000 description 6
- 230000001954 sterilising effect Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 239000002985 plastic film Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- RMKZLFMHXZAGTM-UHFFFAOYSA-N [dimethoxy(propyl)silyl]oxymethyl prop-2-enoate Chemical compound CCC[Si](OC)(OC)OCOC(=O)C=C RMKZLFMHXZAGTM-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012793 heat-sealing layer Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- KQNPFQTWMSNSAP-UHFFFAOYSA-M isobutyrate Chemical compound CC(C)C([O-])=O KQNPFQTWMSNSAP-UHFFFAOYSA-M 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 125000005373 siloxane group Chemical group [SiH2](O*)* 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- 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
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
-
- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- 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
- C08J2439/00—Characterised by the use of 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 a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Derivatives of such polymers
- C08J2439/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
- C08J2439/06—Homopolymers or copolymers of N-vinyl-pyrrolidones
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a composite material for a self-adhesive film and a preparation method thereof. The self-adhesive film composite material has higher peeling strength and composite antifouling capacity, and can automatically fall off from an interface during peeling, so that the integrity of the peeling interface is ensured, and fiber scraps are avoided. The self-adhesive film prepared from the material has higher strength, including tensile strength, puncture strength, tearing strength, peeling strength and the like. Simultaneously meets the peeling integrity requirement, and is especially suitable for sealing packaging materials of medical products.
Description
Technical Field
The invention relates to the field of medical equipment packaging materials, in particular to a self-adhesive film composite material and a preparation method thereof.
Background
The self-adhesive film is a soft film with high transparency and high elasticity. It has high tensile strength, tearing strength and good puncture resistance. A novel packaging material is prepared by taking linear low-density polyethylene (LLDPE) as a main raw material, adding a little auxiliary materials, uniformly mixing, melting and plasticizing through an extrusion system, and then adopting a single-layer, double-layer or multi-layer co-extrusion casting process through a machine head and a forming die. Self-adhesive films are another type of product in protective films. Has the advantages of more environment protection, cleaner, more stability, convenient lamination, difficult falling off, etc. Self-adhesion means that the surface is self-adhesive, rather than adhesive, and no adhesive residue is left after the adhesive is torn off from the surface of the product.
Unlike common packaging, many medical instruments need to be stored under sterile conditions before use, so that medical infection accidents caused by medical material instruments are avoided, and therefore, the requirements on the bacteria resistance performance of medical packaging bags are strict. For medical packages requiring sterilization, particularly using ethylene oxide, the package needs to have a certain air permeability to allow ethylene oxide to enter the package and the contents of the package are sterilized. The self-adhesive film is not breathable or has poor breathability, so that the self-adhesive film is used as the raw material of the medical packaging bag, and other materials with breathability are combined to meet the requirement of enabling the ethylene oxide to be used for sterilization.
Patent CN202122537046.5 discloses a self-adhesive film for sterilizing packaging of medical instruments, which can be heat-sealed with a base paper of medical dialyzing paper or a coated dialyzing paper for preparing sterilizing packaging bags of medical instruments; the structure of the device is as follows: the base film is a composite plastic film composed of polyethylene and other plastics and is divided into a front surface and a back surface, and the front surface is a printable surface; the reverse side is the PE layer outer surface of the base film, and the heat sealing layer is arranged on the outer surface of the PE layer. After the self-adhesive film is heat-sealed with the base paper of medical dialyzing paper or the coated dialyzing paper, the heat-sealing stripping force is in the range of 1.3N/15mm-8.0N/15 mm.
The peel strength of the heat seal is generally comparable to the peel integrity, with high peel strength and low peel integrity, and the peel face is prone to fiber chipping. The heat seal layer of medical packaging material not only requires higher heat seal peel strength to avoid package breakage during sterilization operations, but also requires higher peel integrity requirements to prevent fiber chips from being generated at the peel face during peeling.
Disclosure of Invention
The invention aims to provide a composite material for a self-adhesive film with higher peeling strength and higher peeling integrity and a preparation method thereof.
The technical scheme of the invention is as follows:
a composite material for self-adhesive film comprises 5-15 parts by weight of polyvinylpyrrolidone-iodine-polymethacryloyloxypropyl trimethoxy silane ternary complex, 45-75 parts by weight of propylene-ethylene copolymer, 8-35 parts by weight of ethylene derivative-acrylic acid-maleic anhydride ternary copolymer, 1-4 parts by weight of polyethylene wax, 0.1-0.5 part by weight of antioxidant and 0.2-1.5 parts by weight of PPA auxiliary agent, wherein the polyvinylpyrrolidone-iodine-polymethacryloyloxypropyl group is prepared by mixing the componentsTrimethoxysilane ternary complex with chemical formula [ (PVP) m-I 2 -(PMMPSi)n]。
Polyvinyl pyrrolidone (PVP) is a nontoxic water-soluble high molecular compound, has good film forming property, and PVP number average molecular weight for medicine is 10000-40000. PVP is soluble in water and organic solvents such as alcohols, carboxylic acids, amines, halogenated hydrocarbons, etc. Polyvinylpyrrolidone iodine is a loose complex of elemental iodine and PVP combined. Wherein polyvinylpyrrolidone acts as a carrier and as a dissolution aid. The ternary complex of polyvinylpyrrolidone-iodine-polymethacryloyloxypropyl trimethoxy silane contains iodine, and has antibacterial effect by continuously releasing free iodine, so that protein is denatured and dead, and the ternary complex has strong killing ability and disinfection effect on bacteria, spores, fungi and viruses.
The polyvinylpyrrolidone-iodine-polymethacryloyloxy propyl trimethoxy silane ternary complex has sterilizing effect except iodine element, and free iodine is combined with hydrophilic PVP component, so that the polarity of the composite material can be improved, the direct binding force with base paper can be improved, and the peel strength of self-adhesive film can be improved. And the free iodine and the hydrophilic PVP component are combined to inhibit adhesion of fiber scraps, so that when the composite is opened, the self-adhesive film is cleanly separated from the surface of the base paper material, the integrity of a stripping surface is ensured, and the generation of the fiber scraps is avoided.
The polyvinylpyrrolidone-iodine-polymethacryloyloxypropyl trimethoxy silane ternary compound contains polymethacryloyloxypropyl trimethoxy silane, a siloxane group can be chemically bonded with hydroxyl groups on base paper fibers, the peeling strength of self-adhesive films is improved, good film forming property and durability are provided for polymers, and the service life of the self-adhesive films is prolonged.
The self-adhesive film composite material meets the requirements of self-adhesion and heat sealing with base paper, and has enough strength, tensile strength, puncture strength, tearing strength, peeling strength and the like. Also has higher peeling integrity, and is especially suitable for the heat sealing layer of the sealing packaging material of medical products.
Wherein the molar ratio of m to n in [ (PVP) m-I2- (PMMPSI) n ] is 80-97:2.5-19.5.
Through multiple experiments, the inventor finds that when the molar ratio of polyvinylpyrrolidone to polymethyl acryloyloxy propyl trimethoxy silane in the polyvinylpyrrolidone-iodine-polymethyl acryloyloxy propyl trimethoxy silane ternary compound is in the range of 80-97:2.5-19.5, the aging time of the self-adhesive film can be greatly prolonged, and the service life of the self-adhesive film is prolonged by 30-50%.
The preparation method of the composite material for the self-adhesive film comprises the following steps:
step 1): preparation of polyvinylpyrrolidone-iodine-polymethacryloyloxypropyl trimethoxysilane ternary complex [ (PVP) m-I2- (PMMPSI) n ] preparation of acetone solution, preparation of the following formula (1):
mixing vinyl pyrrolidone, methacryloxypropyl trialkyloxy silane and a free radical initiator to obtain a mixture, adding 5-25 parts by weight of the mixture into 100 parts by weight of acetone, polymerizing at 50-90 ℃ for 5-15 hours under nitrogen atmosphere, adding iodine simple substance, and continuously stirring at 50 ℃ for 20-60 minutes to obtain (PVP) m-I 2 - (PMMPSi) n acetone solution, the free radical initiator being AIBME;
step 2): preparation of a composite material for self-adhesive film:
(PVP) m-I prepared in step 1) 2 - (PMMPSI) n acetone solution containing (PVP) m-I 2 - (PMMPSI) n dry matter weight is 5-15 weight parts, 45-75 weight parts propylene-ethylene copolymer, 8-35 weight parts ethylene derivative-acrylic acid-maleic anhydride terpolymer, 1-4 weight parts polyethylene wax, 0.1-0.5 weight parts antioxidant and 0.2-1.5 weight parts PPA auxiliary agent, and heating and steaming acetone at a stirring speed of 100-1000r/min to obtain the self-adhesive composite material.
The propylene-ethylene copolymer regulates the air permeability, the ethylene derivative-acrylic acid-maleic anhydride terpolymer regulates the self-viscosity, the ethylene wax and PAA auxiliary agent regulate the processability, the antioxidant prevents the ageing degradation of the material, and the service life of the self-adhesive film is prolonged.
Wherein the molar ratio of the free radical initiator AIBME to m+n in step 1) is 0.5-3:100.
The addition amount of the free radical initiator AIBME ensures the self-adhesion stability of the obtained material and ensures the self-adhesive film to have higher peel strength.
AIBME (Dimethyl 2,2' -azolbis (2-methyl propionate), chinese name methyl azodiisobutyrate, molecular formula C 10 H 14 N 2 O 4 . The relative molecular mass is 226.23. Methyl azodiisobutyronitrile is one of the most commonly used azo-based initiators. It features stable decomposition reaction, only 1 free radical, and no poison.
The addition amount of elemental iodine in step 1) is (PVP) m-I 2 0.01% -3% by weight of- (PMMPsi) n dry matter.
Preparing (PVP) m-I2- (PMMPSI) n ternary complex in the step 1), wherein the substituent R in the monomer MMPSi is methyl or ethyl; in the polymerization, the added MMPSi monomer can be one or a mixture of trimethoxysilane and triethoxysilane in any ratio.
The ethylene derivative-acrylic acid-maleic anhydride terpolymer used in step 2) has ethylene, propylene or 1-butene polymeric units as the ethylene derivative structural units.
The composite material for the self-adhesive film reduces the cost, [ (PVP) m-I 2 -(PMMPSi)n]I in ternary complexes 2 Has higher peeling strength and self-cleaning capability, can ensure that self-adhesive film is completely cleaned and separated from an interface when peeling, thereby ensuring clean and smooth peeling interface and no fiber scraps, and is especially suitable for sealing packaging materials of medical products.
The self-adhesive film prepared by the composite material has good surface adhesion effect with an adherend, strong adhesive force, no residual adhesive, easy stripping, difficult adhesion between a surface layer and a self-adhesive layer during stripping, good mechanical property, and high tensile strength and fracture nominal strain rate.
Detailed Description
Example 1
Step 1) mixing Vinylpyrrolidone (VP) with methacryloxypropyl trialkyloxy silane (MMPSi) and a free radical initiator AIBME to obtain a mixture, wherein the molar ratio of the vinylpyrrolidone to the methacryloxypropyl trialkyloxy silane (m: n) is 90:15, the molar ratio of the free radical initiator AIBME to m+n is 2:100, adding 25 parts by weight of the mixture into 100 parts by weight of acetone, and polymerizing at 90 ℃ for 5 hours under nitrogen atmosphere, adding an iodine simple substance, wherein the addition amount of the simple substance iodine is (PVP) m-I 2 3% by weight of the dry matter of- (PMMPSI) n, stirring was continued at 50℃for 20 min to obtain (PVP) m-I 2 - (pmmpi) n acetone solution, yield 100%.
Step 2) preparation of composite material for self-adhesive film
The (PVP) m-I obtained in the step 1) is treated 2 - (PMMPSI) n acetone solution, wherein (PVP) m-I 2 - (PMMPSi) n ternary complex, dry matter weight of 5 parts by weight, 45 parts by weight of propylene-ethylene copolymer, 8 parts by weight of ethylene derivative-acrylic acid-maleic anhydride terpolymer, 1 part by weight of polyethylene wax, 0.1 part by weight of antioxidant and 0.2 part by weight of PPA auxiliary agent were added to a mixer, stirred at a speed of 1000r/min, and the recovered solvent acetone was distilled off to obtain a composite material useful for self-adhesive film.
Example 2
Step 1) mixing Vinylpyrrolidone (VP) with methacryloxypropyl trialkyloxy silane (MMPSi) and a free radical initiator AIBME to obtain a mixture, wherein the molar ratio of the vinylpyrrolidone to the methacryloxypropyl trialkyloxy silane (m: n) is 97:19.5, the molar ratio of the free radical initiator AIBME to m+n is 3:100, adding 5 parts by weight of the mixture into 100 parts by weight of acetone, and polymerizing at 50 ℃ for 15 hours under nitrogen atmosphere, adding an iodine simple substance, wherein the addition amount of the simple substance iodine is (PVP) m-I 2 - (PMMPSI) n dry matter 2% by weight, stirring at 50℃for 60 minutes, obtaining (PVP) m-I 2 - (pmmpi) n acetone solution, yield 100%.
Step 2) preparation of composite material for self-adhesive film
The (PVP) m-I obtained in the step 1) is treated 2 - (PMMPSI) n acetone solution, wherein (PVP) m-I 2 - (PMMPSi) n ternary complex 15 parts by weight, 75 parts by weight of propylene-ethylene copolymer, 35 parts by weight of ethylene derivative-acrylic acid-maleic anhydride terpolymer, 4 parts by weight of polyethylene wax, 0.5 part by weight of antioxidant and 1.5 parts by weight of PPA auxiliary agent were added to a mixer, stirred at a speed of 100r/min, and the recovered solvent acetone was distilled off to obtain a composite material useful for self-adhesive film.
Example 3
Step 1) mixing Vinylpyrrolidone (VP) with methacryloxypropyl trialkyloxy silane (MMPSi) and a free radical initiator AIBME to obtain a mixture, wherein the molar ratio of the vinylpyrrolidone to the methacryloxypropyl trialkyloxy silane (m: n) is 80:2.5, the molar ratio of the free radical initiator AIBME to m+n is 0.5:100, adding 15 parts by weight of the mixture into 100 parts by weight of acetone, polymerizing at 70 ℃ for 12 hours under nitrogen atmosphere, adding an elemental iodine, wherein the addition amount of the elemental iodine is (PVP) m-I 2 - (PMMPSI) n dry matter 0.01% by weight, stirring at 50℃for 40 minutes to obtain (PVP) m-I 2 - (pmmpi) n acetone solution, yield 100%.
Step 2) preparation of composite material for self-adhesive film
The (PVP) m-I obtained in the step 1) is treated 2 - (PMMPSI) n acetone solution, wherein (PVP) m-I 2 - (PMMPSi) n ternary complex, dry matter weight is 10 parts by weight, 60 parts by weight of propylene-ethylene copolymer, 20 parts by weight of ethylene derivative-acrylic acid-maleic anhydride terpolymer, 3 parts by weight of polyethylene wax, 0.3 part by weight of antioxidant and 1 part by weight of PPA auxiliary agent are added to a mixer, stirred at a speed of 500r/min, and the recovered solvent acetone is distilled off to obtain a composite material useful for self-adhesive film.
Experimental example 1: self-adhesive film was prepared using the self-adhesive film composite material prepared in example 1.
Experimental example 2: self-adhesive films were prepared using the composite material for self-adhesive films prepared in example 2.
Experimental example 3: self-adhesive films were prepared using the composite material for self-adhesive films prepared in example 3.
Experimental example 4: preparation of self-adhesive film by using the self-adhesive film composite material prepared in example 1, preparation of a composite film by compounding self-adhesive film and base paper, heat sealing temperature: 200 ℃, heat sealing pressure: 0.5Mpa, heat seal time: 2 seconds.
Experimental example 5: self-adhesive film prepared by using the self-adhesive film composite material prepared in example 2 and base paper are compounded to prepare a composite film, and the heat sealing temperature is as follows: 200 ℃, heat sealing pressure: 0.5Mpa, heat seal time: 2 seconds.
Experimental example 6: preparation of self-adhesive film by using the self-adhesive film composite material prepared in example 1, preparation of a composite film by compounding self-adhesive film and base paper, heat sealing temperature: 200 ℃, heat sealing pressure: 0.5Mpa, heat seal time: 2 seconds.
Tensile strength and nominal strain rate at break test
Determination of Plastic tensile Properties according to section 3: tensile strength and elongation at break were measured according to the standard GB/T1040.3-2016 for test conditions for plastics and sheets, and the results are shown in Table 1;
the friction coefficient is measured according to the standard GB10006-88 of the method for measuring the friction coefficient of plastic films and sheets; the results are shown in Table 1.
Right angle tear force was measured according to the standard of "Plastic tear Strength test method" QB/T1130-91, and the test results are shown in Table 2;
the heat seal peeling force was measured according to the soft composite plastic material peeling test method GB8808, and the test results are shown in Table 2;
the test results are shown in Table 2 and are measured according to GB8809 of the method for testing the pendulum impact resistance of plastic films.
Experimental results
TABLE 1 tensile Strength, nominal strain at break and coefficient of friction
TABLE 2 Right angle tear force, heat seal peel force, and pendulum impact resistance
| Right angle tear force | Heat sealing peel force (N/10 mm) | Pendulum impact resistance | Peeling interface | |
| Experimental example 4 | 6.12 | 6.53 | 2.237 | Flat and clean, and no fiber scraps |
| Experimental example 5 | 6.23 | 6.64 | 2.515 | Flat and clean, and no fiber scraps |
| Experimental example 6 | 5.98 | 6.52 | 2.945 | Flat and clean, and no fiber scraps |
Experimental examples show that the self-adhesive film prepared from the self-adhesive film composite material has higher tensile strength and fracture nominal strain rate, lower dynamic friction coefficient and higher static friction coefficient. The right-angle tearing force and the heat-seal stripping force are higher after the composite with the base paper, and the pendulum impact resistance is good. The adhesive force is strong, the stability is good, no residual glue exists, the peeling is easy, the surface layer and the self-adhesive layer are not easy to adhere during peeling, the unwinding is easy, and the use is convenient.
Claims (5)
1. A composite material for self-adhesive films, characterized in that: comprising 5 to 15 weight parts of polyvinylpyrrolidone-iodine-polymethacryloyloxypropyl trialkyloxy silane ternary complex, 45 to 75 weight parts of propylene-ethylene copolymer, 8 to 35 weight parts of ethylene derivative-acrylic acid-maleic anhydride ternary copolymer, 1 to 4 weight parts of polyethylene wax, 0.1 to 0.5 weight part of antioxidant and 0.2 to 1.5 weight parts of PPA auxiliary agent, wherein the polyvinylpyrrolidone-iodine-polymethacryloyloxypropyl trialkyloxy silane ternary complex has the chemical formula [ (PVP) m -I 2 -(PMMPSi) n ]Wherein the molar ratio of m to n is 80-97:2.5-19.5, and the self-adhesive film composite material is prepared by adopting the following method, and comprises the following steps: step 1): preparation of polyvinylpyrrolidone-iodine-polymethacryloyloxypropyl trialkyloxysilane ternary Complex [ (PVP) m-I 2 -(PMMPSi)n]The following formula (1) is prepared:
mixing vinyl pyrrolidone, methacryloxypropyl trialkyloxy silane and a free radical initiator to obtain a mixture, adding 5-25 parts by weight of the mixture into 100 parts by weight of acetone, polymerizing at 50-90 ℃ for 5-15 hours under nitrogen atmosphere, adding iodine simple substance, and continuously stirring at 50 ℃ for 20-60 minutes to obtain (PVP) m-I 2 - (PMMPSi) n acetone solution, the free radical initiator being AIBME; step 2): preparation of a composite material for self-adhesive film: (PVP) m-I prepared in step 1) 2 - (PMMPSI) n acetone solution containing (PVP) m-I 2 - (PMMPsis) n dry matter 5-15 parts by weight, 45-75 parts by weight of propylene-ethylene copolymer, 8-35 parts by weight of ethylene derivative-propyleneThe acrylic acid-maleic anhydride terpolymer, 1-4 parts by weight of polyethylene wax, 0.1-0.5 part by weight of antioxidant and 0.2-1.5 parts by weight of PPA auxiliary agent are mixed, and acetone is distilled off by heating at the stirring speed of 100-1000r/min, so that the self-adhesive composite material is obtained.
2. The self-adhesive composite material according to claim 1, wherein: the molar ratio of the free radical initiator AIBME to m+n in step 1) is from 0.5 to 3:100.
3. The composite for self-adhesive films according to claim 2, wherein: the addition amount of elemental iodine in step 1) is (PVP) m -I 2 -(PMMPSi) n 0.01% -3% of dry matter mass.
4. A composite material for self-adhesive films according to claim 3, characterized in that: in step 1) (PVP) m -I 2 -(PMMPSi) n Preparing ternary compound, wherein the substituent R in the monomer MMPSi is methyl or ethyl; in the polymerization, the added MMPSi monomer can be one or a mixture of trimethoxysilane and triethoxysilane in any ratio.
5. The composite for self-adhesive films according to claim 4, wherein: the ethylene derivative-acrylic acid-maleic anhydride terpolymer used in step 2) has ethylene, propylene or 1-butene polymeric units as the ethylene derivative structural units.
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| CN202210895712.9A CN115216036B (en) | 2022-07-27 | 2022-07-27 | Composite material for self-adhesive film and preparation method thereof |
| PCT/CN2023/093446 WO2024021765A1 (en) | 2022-07-27 | 2023-05-11 | Composite material for self-adhesive film and preparation method therefor |
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| GB757770A (en) * | 1953-08-22 | 1956-09-26 | Basf Ag | Improvements in the production of water-soluble polymers |
| JP2003064191A (en) * | 2001-08-24 | 2003-03-05 | Japan Polyolefins Co Ltd | Tearable sealant film |
| WO2003031512A1 (en) * | 2001-09-26 | 2003-04-17 | Japan Polyolefins Co., Ltd. | Polyolefin resin material, layered product comprising the same, process for producing the same, and molded object obtained therefrom |
| JP4076378B2 (en) * | 2002-06-28 | 2008-04-16 | コニシ株式会社 | Curable resin composition, method for producing the same, and adhesion method using the same |
| CN102002132B (en) * | 2009-09-02 | 2014-05-28 | 陈煜� | Improvement on method for preparing complex of polyvinylpyrrolidone grafted with natural polymer or water-soluble derivate thereof and iodine derivate |
| JP2013094302A (en) * | 2011-10-28 | 2013-05-20 | Nippon Shokubai Co Ltd | Packaging for medical adhesive sheet |
| CN105017826A (en) * | 2015-07-12 | 2015-11-04 | 陈翠莲 | Functional paint with added gama-methacryloxypropyltrimethoxysilane |
| CN111333778A (en) * | 2020-03-20 | 2020-06-26 | 博爱新开源医疗科技集团股份有限公司 | Waterproof polymer bactericide and preparation method and application thereof |
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Denomination of invention: A composite material for self mucosal use and its preparation method Granted publication date: 20230428 Pledgee: Weihai Commercial Bank Co.,Ltd. Chucun Branch Pledgor: WEIHAI HENGRUI MEDICAL PACKAGING Co.,Ltd. Registration number: Y2024980003131 |