CN111806008A - Modified polyolefin iron-clad film - Google Patents
Modified polyolefin iron-clad film Download PDFInfo
- Publication number
- CN111806008A CN111806008A CN202010664006.4A CN202010664006A CN111806008A CN 111806008 A CN111806008 A CN 111806008A CN 202010664006 A CN202010664006 A CN 202010664006A CN 111806008 A CN111806008 A CN 111806008A
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- China
- Prior art keywords
- polypropylene
- iron
- layer
- clad
- film
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/003—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/32—Making multilayered or multicoloured articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/246—All polymers belonging to those covered by groups B32B27/32 and B32B27/30
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/14—Copolymers of propene
-
- 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
- C08J2433/00—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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
Abstract
The invention relates to the technical field of plastic modification and discloses a modified polyolefin iron-clad film, which consists of the following raw materials: the preparation method comprises the following steps of carrying out melt grafting on 87% of low-molecular-weight ternary polypropylene and 13% of acrylic acid derivatives to prepare a three-layer co-extruded iron-clad film, wherein the modified polyolefin iron-clad film comprises the following three layers from top to bottom: the modified polyolefin iron-clad film is characterized by comprising an upper layer polypropylene, a middle layer modified polypropylene and an iron-clad layer modified polypropylene, wherein the upper layer polypropylene is high-temperature-resistant homopolymerized polypropylene, the middle layer modified polypropylene is prepared by blending binary polypropylene and acrylic acid copolymer, and a coupling agent is added to increase compatibility and interlayer bonding force with the iron-clad layer.
Description
Technical Field
The invention relates to the technical field of plastic modification, in particular to a modified polyolefin iron-clad film.
Background
The laminated iron is prepared by bonding a plastic film and a metal plate through a proper process, so that a novel packaging material is prepared, and perfect combination of plastic packaging and metal packaging is realized. The laminated iron is originally used for a tank making process, replaces the traditional tinplate material, and has been developed into the industries of household appliance panels, household building materials, ship interior decoration and the like. The film coated on the surface of the metal plate is called an iron-coated film, and can be a single-layer plastic film or a multi-layer structure composite film.
The plastic film and the metal plate are bonded by two processes: the wet gluing process adopts a solvent adhesive, the adhesive is diluted by a solvent and then coated on the surface of a plastic film, and the plastic film is dried and then firmly adhered to a metal plate covering plate; and the other is a dry hot pressing process, namely, high-temperature and high-pressure film covering is adopted, so that an iron covering layer of the iron covering film is quickly melted, and the hot melting and the bonding with the metal substrate are realized through the extrusion of a pressure rubber roll.
However, the following problems exist in the practical use process: the PVC material used in the wet gluing process is added with processing aids such as plasticizer, foaming agent and the like in the manufacturing process, and the finished product of the PVC material has adverse effects on human health when in use.
Secondly, because an organic solvent is used in the production process of the wet gluing process, waste gas is generated, and meanwhile, the solvent residue in the finished product is not beneficial to human health and is not completely green and environment-friendly.
In the production process by adopting the wet gluing process, the coated iron is easy to generate bubbles due to the fact that the solvent needs to be dried, so that appearance defects are caused, and the binding force between the film and the iron is reduced.
And fourthly, in the subsequent reprocessing process of the laminated iron, for products with high requirements on tensile property and shrinkage rate, the modified polyethylene laminated iron film prepared by adopting a single-layer casting or blow molding method cannot meet the requirements.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the modified polyolefin iron-clad film, which is mainly applied to the manufacturing and processing of the iron-clad film, adopts a dry hot-pressing process, and compared with a wet gluing process, the dry hot-pressing process is more environment-friendly and has higher strength of a clad plate.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the modified polyolefin iron-clad film comprises the following raw materials in parts by weight: the modified polyolefin iron-clad film is composed of the following raw materials: and melting and grafting 87% of low-molecular-weight ternary polypropylene and 13% of acrylic acid derivative to obtain the three-layer co-extruded iron-clad film.
The modified polyolefin iron-clad film comprises the following three layers from top to bottom in sequence: polypropylene on the upper layer, modified polypropylene on the middle layer and modified polypropylene on the iron-clad layer;
the polypropylene on the upper layer is made of high-temperature-resistant homo-polypropylene, the modified polypropylene on the middle layer is made of binary polypropylene and acrylic acid copolymer by blending, and a coupling agent is added to increase the compatibility and the interlayer bonding force with the iron-clad layer.
The preparation of the modified polyolefin iron-clad film comprises the following steps: the first step is as follows: preparing 87% of low-molecular-weight ternary polypropylene and 13% of acrylic acid derivative;
the second step is that: respectively adding materials required by the polypropylene on the upper layer, the modified polypropylene on the middle layer and the modified polypropylene on the iron-clad layer into a hopper, extruding and casting by three-layer co-extrusion equipment, wherein the casting temperature is 220-;
the third step: the following particles were added to the extruder hopper of the casting unit: 100% of homopolymerized polypropylene is added into polypropylene on the upper layer, 94.5% of binary polypropylene, 5% of acrylic acid copolymer and 1.5% of coupling agent are respectively added into three feed inlets of middle-layer modified polypropylene, and 100% of iron-clad layer modified polyolefin particles are added into the inner-layer iron-clad layer modified polypropylene. And then obtaining a three-layer structure film by a co-extrusion mode, cooling the film by a cooling roller immediately after the film is formed from an extruder die head, and preparing a semi-finished product film with the required width by corona, edge cutting and winding processes. And after the semi-finished product prepared by the casting machine is plasticized and shaped for 48 hours, the semi-finished product is cut into the size and the number of meters required by a client through a product inspection machine.
(III) advantageous effects
Compared with the prior art, the invention provides the modified polyolefin iron-clad film, which has the following beneficial effects:
1. compared with PVC materials used by the traditional laminated iron, the modified polyolefin laminated iron film does not contain additives such as plasticizers, foaming agents and the like which are added externally in the production and processing process, and the product meets the requirement of environmental protection.
2. Compared with the wet-type gluing process for producing the laminated iron, the dry-method hot-pressing process adopted by the product can effectively avoid the defects of solvent residue and easy bubble generation of the finished laminated iron product.
3. The modified polyolefin iron-clad film has higher tearing strength, tensile strength and smaller shrinkage rate, can improve the requirements on deformation and extension during stamping of the iron-clad film, and is not easy to break or delaminate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The modified polyolefin iron-clad film comprises the following raw materials in parts by weight: the modified polyolefin iron-clad film is composed of the following raw materials: and melting and grafting 87% of low-molecular-weight ternary polypropylene and 13% of acrylic acid derivative to obtain the three-layer co-extruded iron-clad film.
The modified polyolefin iron-clad film comprises the following three layers from top to bottom in sequence: polypropylene on the upper layer, modified polypropylene on the middle layer and modified polypropylene on the iron-clad layer;
the polypropylene on the upper layer is made of high-temperature-resistant homo-polypropylene, the modified polypropylene on the middle layer is made of binary polypropylene and acrylic acid copolymer by blending, and a coupling agent is added to increase the compatibility and the interlayer bonding force with the iron-clad layer.
The preparation of the modified polyolefin iron-clad film comprises the following steps: the first step is as follows: preparing 87% of low-molecular-weight ternary polypropylene and 13% of acrylic acid derivative;
the second step is that: respectively adding materials required by the polypropylene on the upper layer, the modified polypropylene on the middle layer and the modified polypropylene on the iron-clad layer into a hopper, extruding and casting by three-layer co-extrusion equipment, wherein the casting temperature is 220-;
the third step: the following particles were added to the extruder hopper of the casting unit: 100% of homopolymerized polypropylene is added to the upper layer, 94.5% of binary polypropylene, 5% of acrylic acid copolymer and 1.5% of coupling agent are respectively added to the three feed inlets of the middle layer, and 100% of iron-clad layer modified polyolefin particles are added to the inner layer. And then obtaining a three-layer structure film by a co-extrusion mode, cooling the film by a cooling roller immediately after the film is formed from an extruder die head, and preparing a semi-finished product film with the required width by corona, edge cutting and winding processes. And after the semi-finished product prepared by the casting machine is plasticized and shaped for 48 hours, the semi-finished product is cut into the size and the number of meters required by a client through a product inspection machine.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The modified polyolefin iron-clad film is characterized by comprising the following raw materials in parts by weight: the modified polyolefin iron-clad film is composed of the following raw materials: and melting and grafting 87% of low-molecular-weight ternary polypropylene and 13% of acrylic acid derivative to obtain the three-layer co-extruded iron-clad film.
2. The modified polyolefin iron-clad film of claim 1, wherein: the modified polyolefin iron-clad film comprises the following three layers from top to bottom in sequence: polypropylene on the upper layer, modified polypropylene on the middle layer and modified polypropylene on the iron-clad layer;
the polypropylene on the upper layer is made of high-temperature-resistant homo-polypropylene, the modified polypropylene on the middle layer is made of binary polypropylene and acrylic acid copolymer by blending, and a coupling agent is added to increase the compatibility and the interlayer bonding force with the iron-clad layer.
3. The modified polyolefin iron-clad film of claim 2, wherein: the preparation of the modified polyolefin iron-clad film comprises the following steps: the first step is as follows: preparing 87% of low-molecular-weight ternary polypropylene and 13% of acrylic acid derivative;
the second step is that: respectively adding materials required by the polypropylene on the upper layer, the modified polypropylene on the middle layer and the modified polypropylene on the iron-clad layer into a hopper, extruding and casting by three-layer co-extrusion equipment, wherein the casting temperature is 220-;
the third step: the following particles were added to the extruder hopper of the casting unit: 100% of homopolymerized polypropylene is added into polypropylene on the upper layer, 94.5% of binary polypropylene, 5% of acrylic acid copolymer and 1.5% of coupling agent are respectively added into three feed inlets of modified polypropylene on the middle layer, 100% of iron-coated layer modified polyolefin particles are added into the modified polypropylene on the inner layer, a three-layer structure film is obtained through a co-extrusion mode, the film is cooled through a cooling roller immediately after being formed into a film from an extruder die head, and then a semi-finished product film with a required width is prepared through corona, edge cutting and winding processes, and after the semi-finished product prepared through a casting machine is plasticized and shaped for 48 hours, the semi-finished product is cut into the size and the number of meters required by a client through a product inspection machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010664006.4A CN111806008A (en) | 2020-07-10 | 2020-07-10 | Modified polyolefin iron-clad film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010664006.4A CN111806008A (en) | 2020-07-10 | 2020-07-10 | Modified polyolefin iron-clad film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111806008A true CN111806008A (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010664006.4A Pending CN111806008A (en) | 2020-07-10 | 2020-07-10 | Modified polyolefin iron-clad film |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092782A (en) * | 1988-03-29 | 1994-09-28 | 罗姆和哈斯公司 | Graft copolymer and with polyolefinic blend |
| CN1930234A (en) * | 2004-01-09 | 2007-03-14 | 纳幕尔杜邦公司 | Polypropylene modification for improved adhesion of polypropylene-based multilayer packaging film structure to vacuum deposited aluminum |
| CN102941718A (en) * | 2012-09-29 | 2013-02-27 | 奥瑞金包装股份有限公司 | Casting polypropylene film for coating metal substrate and preparation method thereof |
| CN109968762A (en) * | 2018-12-24 | 2019-07-05 | 江西省通瑞新能源科技发展有限公司 | A kind of aluminum-plastic composite membrane cast polypropylene film and preparation method thereof |
-
2020
- 2020-07-10 CN CN202010664006.4A patent/CN111806008A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092782A (en) * | 1988-03-29 | 1994-09-28 | 罗姆和哈斯公司 | Graft copolymer and with polyolefinic blend |
| CN1930234A (en) * | 2004-01-09 | 2007-03-14 | 纳幕尔杜邦公司 | Polypropylene modification for improved adhesion of polypropylene-based multilayer packaging film structure to vacuum deposited aluminum |
| CN102941718A (en) * | 2012-09-29 | 2013-02-27 | 奥瑞金包装股份有限公司 | Casting polypropylene film for coating metal substrate and preparation method thereof |
| CN109968762A (en) * | 2018-12-24 | 2019-07-05 | 江西省通瑞新能源科技发展有限公司 | A kind of aluminum-plastic composite membrane cast polypropylene film and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 姚小利: "熔融接枝反应改进聚烯烃粘结性的研究", 《现代塑料加工应用》 * |
| 黄珍珍等: "丙烯酸接枝聚丙烯的制备及其结构与性能", 《工程塑料应用》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220401 Address after: 201600 area F, building 1, 120 Rongjiang Road, Songjiang District, Shanghai Applicant after: Shanghai ruizefeng Standard Technical Service Co.,Ltd. Address before: Room 505, no.26349 Yushu street, Songjiang District, Shanghai Applicant before: Shanghai Yexin Material Technology Co.,Ltd. |
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Application publication date: 20201023 |