CN106317550A - Foam pad and production method thereof - Google Patents

Foam pad and production method thereof Download PDF

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Publication number
CN106317550A
CN106317550A CN201610663089.9A CN201610663089A CN106317550A CN 106317550 A CN106317550 A CN 106317550A CN 201610663089 A CN201610663089 A CN 201610663089A CN 106317550 A CN106317550 A CN 106317550A
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CN
China
Prior art keywords
base layer
foam pad
single screw
extrusion
raw material
Prior art date
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.)
Granted
Application number
CN201610663089.9A
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Chinese (zh)
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CN106317550B (en
Inventor
王衍萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Lixing Investment Consulting Co ltd
Original Assignee
Jiangsu Jin Thick New Mstar Technology Ltd
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Application filed by Jiangsu Jin Thick New Mstar Technology Ltd filed Critical Jiangsu Jin Thick New Mstar Technology Ltd
Priority to CN201610663089.9A priority Critical patent/CN106317550B/en
Priority to DE112016000112.6T priority patent/DE112016000112T5/en
Priority to PCT/CN2016/111474 priority patent/WO2018028111A1/en
Publication of CN106317550A publication Critical patent/CN106317550A/en
Priority to GB1704539.4A priority patent/GB2552865B/en
Priority to FR1752338A priority patent/FR3054974B1/en
Application granted granted Critical
Publication of CN106317550B publication Critical patent/CN106317550B/en
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Classifications

    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/06—Making multilayered articles
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/24—Making multilayered articles
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • 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
    • 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
    • B32B27/065—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 foam
    • 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
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
    • B29L2031/265—Packings, Gaskets
    • 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
    • B32B2250/242—All polymers belonging to those covered by group B32B27/32
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0207—Materials belonging to B32B25/00
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/025—Polyolefin
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/10—Composition of foam characterised by the foam pores
    • B32B2266/102—Nanopores, i.e. with average diameter smaller than 0.1 µm
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/10—Composition of foam characterised by the foam pores
    • B32B2266/104—Micropores, i.e. with average diameter in the range from 0.1 µm to 0.1 mm
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/10—Composition of foam characterised by the foam pores
    • B32B2266/106—Unimodal pore distribution
    • 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
    • B32B2307/546—Flexural strength; Flexion stiffness
    • 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
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • 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
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • 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
    • B32B2435/00—Closures, end caps, stoppers
    • B32B2435/02—Closures, end caps, stoppers for containers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/14—Applications used for foams
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Sealing Material Composition (AREA)
  • Molding Of Porous Articles (AREA)
  • Closures For Containers (AREA)

Abstract

The invention provides a foam pad and the production method thereof. The foam pad comprises the base layer and the upper surface film and lower surface film covering the base layer. The base layer is the foam body, which is also the averagely distributed capillary pores, wherein the average diameter of the capillary pore is 1-100 micrometers; the film layer is evenly distributed with high density; the preparation method of the foam pad comprises the super-critical foaming process and the filming process. The foam pad has the advantages of excellent elasticity and softness and can be used as the plastic film for food. As the bottle cap gasket, the foam pad has excellent airtight features. The production method is also simple and can be easily industrialized.

Description

A kind of foam pad and preparation method thereof
Technical field
The invention belongs to packaging for foodstuff, drug packaging contour security fields technical field, relate to a kind of foam pad and system thereof Preparation Method, particularly relates to gasket seal on a kind of bottle cap and preparation method thereof.
Background technology
Bottle cap spacer is to use rubber peel, copper sheet or paper, is used for being put between two planes in order to strengthen the material sealed, There is the effect preventing fluid from leaking.Along with economic development, Bottle cap spacer is widely used in drinks, food, cosmetic In the industry such as product, medicine.
According to related news, current China Wines packing and beverage class packaging, the demand of Bottle cap spacer is increased day by day, And the Bottle cap spacer that Wines packing uses accounts for Bottle cap spacer and uses more than the 70% of total amount.Along with China's drinks and beverage industry Fast development, Bottle cap spacer industry gradually emerges.The production of China's Bottle cap spacer in 2014 is compared 2013 year-on-years and is gone up 14%, this huge demand does not simply pull on Bottle cap spacer price and rises on the way, and the quantity also making Bottle cap spacer manufacturer is fast Speed increases.At present, China has become the maximum Bottle cap spacer country of consumption in the whole world and exported country.
The most hundreds of kind of the product in China's Bottle cap spacer market, the Bottle cap spacer of various model specifications and type is flooded with food Product packing container market.At present, the pad being used in packaging for foodstuff has PVC (polrvinyl chloride), PE (polyethylene), returns power glue The materials such as pad, aluminium foil Composition spacer, paper aluminum Composition spacer, wherein based on PVC, PE material.
CN 104250404A discloses a kind of jar cap pad pellet and preparation method thereof, described jar cap pad Its formula of pellet according to the mass fraction, including polypropylene 30-50 part, polyethylene 30-50 part, thermoplastic elastomer (TPE) 10-30 part, adds Work auxiliary agent 0.4-5 part, above-mentioned raw materials mixes through high mixer, extruder is extruded, cool down, pelletizing obtains jar cap pad pellet.Should Jar cap pad pellet uses the raw material of safety non-toxic completely, without plasticizers such as harmful adjacent benzene classes, both full The demand of foot food can package Bottle cap spacer pellet safety non-toxic has again excellent sealing.
CN 1465507A discloses a kind of bottle cap material and the application on heat filling beverage plastic bottle closure thereof, logical Cross maleic acid modified EVA (ethylene-vinyl acetate copolymer), SEBS (hydrogenated styrene diene copolymer), hydrowax oil, The combination of branch-like Low Density Polyethylene, polypropylene, polystyrene and low molecule lubricant is constituted, and contains containing VA (vinyl acetate) Amount is the EVA of 18%, and weight ratio is 5-60%, adds ethylene-alpha-olefin copolymer, and weight ratio is 90-35%.This material is to pass System cap packing material in unexistent.This blended inner pad material prepared and existing beverage packing plastic bottle lid inner pad material Comparing, have excellent performance, gasket material is the most cheap, and than conventional thermal fill drink plastic bottle closure inner pad material Effective.
But, existing Bottle cap spacer, its sealing need to improve further.
Summary of the invention
The deficiency existed for prior art, it is an object of the invention to provide a kind of foam pad and preparation method thereof, institute State foam pad pliability, flexibility and good springiness, for food grade plastic sheet, there is for Bottle cap spacer the sealing of excellence, and And its preparation method is simple, it is simple to industrial applications.
1bar=0.1MPa.
For reaching this purpose, the present invention by the following technical solutions:
An object of the present invention is to provide a kind of foam pad, and described foam pad includes base layer and is covered in base layer The film layer of upper and lower surface, described base layer is foaming body, and is the poroid body of uniform capillary, the average hole of described pore Footpath is 1-100 μm, as 2 μm, 5 μm, 8 μm, 10 μm, 12 μm, 15 μm, 18 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 80 μm, 90 μm or 95 μm etc.；Described even film layer is fine and close；
Described base layer is mainly prepared by following raw material by weight/mass percentage composition:
PE (polyethylene) 0-90%, such as 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% or 85% etc.；
PP (polypropylene) 0-90%, such as 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% or 85% etc.；
POE (ethylene-octene copolymer), SBS (styrene and the block copolymer of butadiene) or SEBS (hydrogenation of benzene second Alkene-butadiene block copolymer) in any one or the combination 0-20% (not comprising 0) of at least two, such as 0.5%, 1%, 2%, 3%, 5%, 6%, 8%, 10%, 12%, 15% or 18% etc.；
Releasing agent 0.2-1.0%, such as 0.3%, 0.5%, 0.6%, 0.7%, 0.8% or 0.9% etc.；
Nucleator 0.1-2.5%, such as 0.3%, 0.5%, 0.8%, 1.0%, 1.2%, 1.5%, 1.8%, 2.0% or 2.3% etc.；
Color masterbatch 0-2.0%, such as 0.1%, 0.5%, 0.8%, 1.0%, 1.2%, 1.3%, 1.5%, 1.7% or 1.9% Deng；
Wherein, in PE and PP, the weight/mass percentage composition of a kind of material is 0；The combination of POE, SBS or SEBS such as, POE With SBS, POE and SEBS, POE, SBS and SEBS.
Described film layer is mainly prepared by following raw material by weight/mass percentage composition:
PE 0-93%, such as 2%, 3%, 5%, 10%, 20%, 30%, 50%, 60%, 70%, 80% or 90% etc.；
PP 0-95%, such as 1%, 3%, 5%, 8%, 10%, 20%, 30%, 50%, 60%, 80% or 90% etc.；
POE 0-93%, such as 2%, 3%, 5%, 10%, 20%, 30%, 50%, 60%, 70%, 80% or 90% etc.；
Viscosifier 0-30%, such as 1%, 3%, 5%, 8%, 10%, 12%, 15%, 18%, 20%, 23%, 25% or 28% etc.；
Releasing agent 0.2-1.1%, such as 0.3%, 0.5%, 0.8% or 1.0% etc.；
Opening agent 0.1-3.0%, such as 0.3%, 0.5%, 0.8%, 1.0%, 1.2%, 1.5%, 1.8%, 2.0%, 2.1%, 2.3%, 2.5% or 2.8% etc.；
Wherein, in PE, PP and POE, the weight/mass percentage composition of a kind of material is 0.
Described base layer is that the poroid body of uniform capillary refers to that described base layer comprises multiple pore.
As preferred technical scheme, described base layer is prepared by following raw material by weight/mass percentage composition:
Preferably, described releasing agent selected from oleamide, erucyl amide or oleamide and erucyl amide make with PE Or any one or the combination of at least two in the masterbatch that PP is carrier.Typical but non-limiting combination such as oleamide with The masterbatch with PE or PP as carrier that erucyl amide, oleamide and oleamide make with erucyl amide, erucyl amide and oil The masterbatch with PE or PP as carrier that acid amide makes with erucyl amide.
Preferably, described nucleator, selected from sodium bicarbonate, citric acid as principle active component, with PE or PP or EVA is The masterbatch of carrier.
As preferred technical scheme, described film layer is mainly prepared by following raw material by weight/mass percentage composition:
Preferably, described viscosifier appointing in EEA (ethylene ethyl acrylate), polyester or maleic anhydride grafted resin Anticipate a kind of or combination of at least two.Typical but non-limiting combination such as EEA and polyester, EEA and maleic anhydride grafted resin, EEA, polyester and maleic anhydride grafted resin.
Preferably, described releasing agent selected from oleamide, erucyl amide or oleamide and erucyl amide make with PE Or any one or the combination of at least two in the masterbatch that PP is carrier.Typical but non-limiting combination such as oleamide with The masterbatch with PE or PP as carrier that erucyl amide, oleamide and oleamide make with erucyl amide, erucyl amide and oil The masterbatch with PE or PP as carrier that acid amide makes with erucyl amide.
Preferably, described opening agent is selected from erucyl amide.
The thickness of described base layer is 0.5-10.0mm, as 0.8mm, 1.0mm, 1.5mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm or 9.0mm etc..Blocked up, then the application performance such as material seal performance does not ensure；Cross thin, then material Pliability, coordinate that to make up performance inadequate.
Preferably, the density of described base layer is 100-800kg/m3, such as 150kg/m3、200kg/m3、300kg/m3、 400kg/m3、500kg/m3、600kg/m3Or 700kg/m3Deng.
Described base layer is owing to through supercritical physical blowing, its crosslinking sealing is excellent.
Preferably, the thickness of described film layer is 0.02-0.15mm, such as 0.05mm, 0.08mm, 0.10mm, 0.12mm or 0.14mm etc..The pliability of the blocked up then material of film layer, coordinates and makes up performance not, and film layer crosses the application such as thin then material seal performance Performance does not ensure.The thickness of described film layer is thickness and the lower surface that 0.02-0.15mm refers to the upper surface film layer of base layer The thickness of film layer independently be 0.02-0.15mm.
While described film layer makes described foam pad possess good flexible fit, also meet sealing function and want Ask.
An object of the present invention also resides in the preparation method providing a kind of foam pad as above, described preparation method Comprise the steps:
(1) the base layer raw material of formula ratio is sent in the hopper of single screw extrusion machine, simultaneously in single screw extrusion machine Portion is filled with supercritical carbon dioxide, extruded foaming, obtains base layer, and described supercritical carbon dioxide is 50-220bar pressure Under supercritical carbon dioxide, as 60bar, 80bar, 90bar, 100bar, 120bar, 150bar, 180bar or 200bar press Supercritical carbon dioxide under power；
(2) the film layer raw material of formula ratio is sent in single screw extrusion machine hopper, in base layer surface film, obtain described Foam pad.
Step (1) described single screw extrusion machine be have heating cooling voltage endurance single screw extrusion machine, typical case but non- The foaming machine that restrictive single screw extrusion machine such as Berstorff company limited manufactures: 150-ISO-PAC.
Main frame temperature≤65 DEG C of pressure single screw extrusion machine unit in step (1) described extrusion, as 63 DEG C, 60 DEG C, 58 DEG C, 55 DEG C, 50 DEG C, 45 DEG C or 30 DEG C etc., main frame temperature is too high, then cause unit to damage.
Preferably, step (1) described extrusion temperature is 90-210 DEG C, as 100 DEG C, 110 DEG C, 130 DEG C, 150 DEG C, 180 DEG C, 190 DEG C or 200 DEG C etc., extrusion temperature is high, then film mouldability is bad, became uneven, foams uneven；Extrusion temperature is low, then film Foaming inequality maybe cannot foam.
Preferably, in step (1) described extrusion, the rotating speed of screw rod is 1-100rpm, as 2rpm, 3rpm, 5rpm, 10rpm, 20rpm, 30rpm, 40rpm, 50rpm, 60rpm, 70rpm, 80rpm or 90rpm etc..
Preferably, the pressure-bearing scope of step (1) described single screw extrusion machine is 0-250bar, as 2bar, 5bar, 10bar, 20bar, 50bar, 100bar, 120bar, 150bar, 180bar, 200bar, 220bar or 240bar etc..
The flow of step (1) described supercritical carbon dioxide is 0.10-2.50kg/h, as 0.3kg/h, 0.5kg/h, 0.8kg/h, 1.0kg/h, 1.2kg/h, 1.5kg/h, 1.8kg/h, 2.0kg/h or 2.3kg/h etc., the flow of carbon dioxide is high, Then film foaming is uneven, foaming is excessive, elastic properties of materials lost efficacy；Flow is low, then foam too low, and pliability is inadequate.
Preferably, the thickness of step (1) described base layer is 0.5-10.0mm, as 0.8mm, 1.0mm, 1.5mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm or 9.0mm etc..
Preferably, the density of step (1) described base layer is 100-800kg/m3, such as 150kg/m3、200kg/m3、 300kg/m3、400kg/m3、500kg/m3、600kg/m3Or 700kg/m3Deng.
The temperature of step (2) described extrusion is 80-250 DEG C, as 85 DEG C, 90 DEG C, 95 DEG C, 100 DEG C, 120 DEG C, 130 DEG C, 150 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C or 240 DEG C etc..
Preferably, in step (2) described extrusion, the rotating speed of screw rod is 1-100rpm, as 2rpm, 3rpm, 5rpm, 10rpm, 20rpm, 30rpm, 40rpm, 50rpm, 60rpm, 70rpm, 80rpm or 90rpm etc..
Step (2) described base layer overlay film thickness is 0.02-0.15mm, such as 0.05mm, 0.08mm, 0.10mm, 0.12mm Or 0.14mm etc..
Film in step (2) can carry out functional membrane making according to downstream application demand.
As preferred technical scheme, described preparation method comprises the steps:
(1) the base layer raw material of formula ratio is sent in the hopper of single screw extrusion machine, simultaneously in single screw extrusion machine Portion is filled with the supercritical carbon dioxide under 50-220bar pressure, and the flow of supercritical carbon dioxide is 0.10-2.50kg/h, warp Extrusion, obtaining density is 100-800kg/m3, thickness is the base layer of 0.5-10.0mm, wherein, and the list in described extrusion Main frame temperature≤65 DEG C of screw extruder；Extrusion temperature is 90-210 DEG C；In extrusion, the rotating speed of screw rod is 1-100rpm； The pressure-bearing scope of described single screw extrusion machine is 0-250bar；
(2) the film layer raw material of formula ratio is sent in single screw extrusion machine hopper, in base layer surface film, obtain overlay film Thickness is the foam pad of 0.02-0.15mm, and wherein, the temperature of extrusion is 80-250 DEG C；In extrusion, the rotating speed of screw rod is 1- 100rpm。
Compared with prior art, the invention have the benefit that
The foam pad that the present invention provides is become with film layer group by base layer, and base layer is foamed to be prepared, and crosslinking sealing is preferable, And pliability, flexibility and elasticity are preferably, and the film layer that its surface covers makes described foam pad possess good flexible fit While property, also meeting sealing function requirement, its Shore A hardness is 35-50, has the sealing of excellence for Bottle cap spacer And good unlatching performance, and there is bonding and the effect improving flatness, it addition, it is food grade plastic sheet；
The preparation method of the foam pad that the present invention provides is simple, it is simple to industrial applications.
Detailed description of the invention
Technical scheme is further illustrated below by detailed description of the invention.
In the preparation method of following example, step (1) described single screw extrusion machine is for having heating, cooling and pressure spy Property the foaming machine that manufactures of single screw extrusion machine Berstorff company limited: 150-ISO-PAC.
The thickness of film layer described in following example is thickness and the following table that a certain numerical value refers to the upper surface film layer of base layer The thickness of face mask layer independently be a certain numerical value.
Embodiment 1
A kind of foam pad, described foam pad includes base layer and is covered in the film layer of base layer upper and lower surface, institute Stating base layer is foaming body, and is the poroid body of uniform capillary, and the average diameter of pore is 1-30 μm；Described film layer is film Layer, even film layer is fine and close；The thickness of described base layer is 0.5mm；The thickness of described film layer is 0.02mm；
Described base layer is mainly prepared by following raw material by weight/mass percentage composition:
Described releasing agent is selected from oleamide；
Described nucleator is selected from the mother with sodium bicarbonate, citric acid as principle active component, with PE or PP or EVA as carrier Material.
Described film layer is mainly prepared by following raw material by weight/mass percentage composition:
Described viscosifier are selected from EEA (ethylene ethyl acrylate).
Described releasing agent is selected from oleamide.
Described opening agent is selected from erucyl amide.
The preparation method of described foam pad comprises the steps:
(1) the base layer raw material of formula ratio is sent in the hopper of single screw extrusion machine, simultaneously in single screw extrusion machine Portion is filled with the supercritical carbon dioxide under 50bar pressure, and the flow of supercritical carbon dioxide is 2.50kg/h, extruded foaming, Obtain base layer, wherein, the main frame temperature of the single screw extrusion machine in described extrusion 65 DEG C；Extrusion temperature is 210 DEG C；Squeeze During going out, the rotating speed of screw rod is 1rpm；The pressure-bearing scope of described single screw extrusion machine is 250bar；
(2) the film layer raw material of formula ratio is sent in single screw extrusion machine hopper, in base layer surface film, obtain overlay film Thickness is the foam pad of 0.02mm, and wherein, the temperature of extrusion is 80 DEG C；In extrusion, the rotating speed of screw rod is 100rpm.
Embodiment 2
A kind of foam pad, described foam pad includes base layer and is covered in the film layer of base layer upper and lower surface, institute Stating base layer is foaming body, and is the poroid body of uniform capillary, and the average diameter of pore is 50-100 μm；Described film layer is film Layer, even film layer is fine and close；The thickness of described base layer is 10.0mm；The thickness of described film layer is 0.15mm；
Described base layer is mainly prepared by following raw material by weight/mass percentage composition:
Described releasing agent is selected from oleamide and erucyl amide.
Preferably, described nucleator, selected from sodium bicarbonate, citric acid as principle active component, with PE or PP or EVA is The masterbatch of carrier.
Described film layer is mainly prepared by following raw material by weight/mass percentage composition:
Described viscosifier are selected from EEA and polyester.
The masterbatch with PE or PP as carrier that described releasing agent makes with erucyl amide selected from oleamide.
Described opening agent is selected from erucyl amide.
The preparation method of described foam pad comprises the steps:
(1) the base layer raw material of formula ratio is sent in the hopper of single screw extrusion machine, simultaneously in single screw extrusion machine Portion is filled with the supercritical carbon dioxide under 220bar pressure, and the flow of supercritical carbon dioxide is 0.10kg/h, extruded foaming, Obtain base layer, wherein, the main frame temperature 50 C of the single screw extrusion machine in described extrusion；Extrusion temperature is 90 DEG C；Squeeze During going out, the rotating speed of screw rod is 100rpm；The pressure-bearing scope of described single screw extrusion machine is 100bar；
(2) the film layer raw material of formula ratio is sent in single screw extrusion machine hopper, in base layer surface film, obtain overlay film Thickness is the foam pad of 0.15mm, and wherein, the temperature of extrusion is 250 DEG C；In extrusion, the rotating speed of screw rod is 1rpm.
Embodiment 3
A kind of foam pad, described foam pad includes base layer and is covered in the film layer of base layer upper and lower surface, institute Stating base layer is foaming body, and is the poroid body of uniform capillary, and the average diameter of pore is 30-80 μm；Described film layer is film Layer, even film layer is fine and close；The thickness of described base layer is 5.0mm；The thickness of described film layer is 0.10mm；
Described base layer is mainly prepared by following raw material by weight/mass percentage composition:
Described releasing agent is selected from erucyl amide.
Preferably, described nucleator, selected from sodium bicarbonate, citric acid as principle active component, with PE or PP or EVA is The masterbatch of carrier.
Described film layer is mainly prepared by following raw material by weight/mass percentage composition:
Described viscosifier are selected from maleic anhydride grafted resin.
The masterbatch with PE or PP as carrier that described releasing agent makes with erucyl amide selected from oleamide.
Described opening agent is selected from erucyl amide.
The preparation method of described foam pad comprises the steps:
(1) the base layer raw material of formula ratio is sent in the hopper of single screw extrusion machine, simultaneously in single screw extrusion machine Portion is filled with the supercritical carbon dioxide under 100bar pressure, and the flow of supercritical carbon dioxide is 1.00kg/h, extruded foaming, Obtain base layer, wherein, the main frame temperature 60 C of the single screw extrusion machine in described extrusion；Extrusion temperature is 120 DEG C；Squeeze During going out, the rotating speed of screw rod is 20rpm；The pressure-bearing scope of described single screw extrusion machine is 120bar；
(2) the film layer raw material of formula ratio is sent in single screw extrusion machine hopper, in base layer surface film, obtain overlay film Thickness is the foam pad of 0.10mm, and wherein, the temperature of extrusion is 100 DEG C；In extrusion, the rotating speed of screw rod is 20rpm.
Embodiment 4
A kind of foam pad, described foam pad includes base layer and is covered in the film layer of base layer upper and lower surface, institute Stating base layer is foaming body, and is the poroid body of uniform capillary, and the average diameter of pore is 1-30 μm；Described film layer is film Layer, even film layer is fine and close；The thickness of described base layer is 3.0mm；The thickness of described film layer is 0.05mm；
Described base layer is mainly prepared by following raw material by weight/mass percentage composition:
The masterbatch with PE or PP as carrier that described releasing agent makes with erucyl amide selected from oleamide.
Described nucleator is selected from the mother with sodium bicarbonate, citric acid as principle active component, with PE or PP or EVA as carrier Material.
Described film layer is mainly prepared by following raw material by weight/mass percentage composition:
Preferably, described viscosifier are the group of 1:1:1 selected from EEA, polyester and maleic anhydride grafted resin according to mass ratio Close.
Described releasing agent is selected from oleamide.
Described opening agent is selected from erucyl amide.
The preparation method of described foam pad comprises the steps:
(1) the base layer raw material of formula ratio is sent in the hopper of single screw extrusion machine, simultaneously in single screw extrusion machine Portion is filled with the supercritical carbon dioxide under 150bar pressure, and the flow of supercritical carbon dioxide is 2.0kg/h, extruded foaming, Obtain base layer, wherein, the main frame temperature of the single screw extrusion machine in described extrusion 55 DEG C；Extrusion temperature is 170 DEG C；Squeeze During going out, the rotating speed of screw rod is 80rpm；The pressure-bearing scope of described single screw extrusion machine is 150bar；
(2) the film layer raw material of formula ratio is sent in single screw extrusion machine hopper, in base layer surface film, obtain overlay film Thickness is the foam pad of 0.05mm, and wherein, the temperature of extrusion is 180 DEG C；In extrusion, the rotating speed of screw rod is 90rpm.
Embodiment 5
A kind of foam pad, described foam pad includes base layer and is covered in the film layer of base layer upper and lower surface, institute Stating base layer is foaming body, and is the poroid body of uniform capillary, and the average diameter of pore is 1-100 μm；Described film layer is film Layer, even film layer is fine and close；The thickness of described base layer is 3.0mm；The thickness of described film layer is 0.05mm；
Described base layer is mainly prepared by following raw material by weight/mass percentage composition:
Described releasing agent is selected from oleamide.
Described nucleator is selected from the mother with sodium bicarbonate, citric acid as principle active component, with PE or PP or EVA as carrier Material.
Described film layer is mainly prepared by following raw material by weight/mass percentage composition:
Described viscosifier are selected from maleic anhydride grafted resin.
The masterbatch with PE or PP as carrier that described releasing agent makes with erucyl amide selected from oleamide.
Described opening agent is selected from erucyl amide.
The preparation method of described foam pad comprises the steps:
(1) the base layer raw material of formula ratio is sent in the hopper of single screw extrusion machine, simultaneously in single screw extrusion machine Portion is filled with the supercritical carbon dioxide under 150bar pressure, and the flow of supercritical carbon dioxide is 2.0kg/h, extruded foaming, Obtain base layer, wherein, the main frame temperature of the single screw extrusion machine in described extrusion 55 DEG C；Extrusion temperature is 170 DEG C；Squeeze During going out, the rotating speed of screw rod is 80rpm；The pressure-bearing scope of described single screw extrusion machine is 150bar；
(2) the film layer raw material of formula ratio is sent in single screw extrusion machine hopper, in base layer surface film, obtain overlay film Thickness is the foam pad of 0.05mm, and wherein, the temperature of extrusion is 180 DEG C；In extrusion, the rotating speed of screw rod is 90rpm.
Comparative example 1
Described comparative example 1 is the base layer that embodiment 3 prepares.
Comparative example 2
Described comparative example 2 is the PE pad (manufacturer: upper hamming deep pool Plastic Products Co., Ltd) being purchased.
Comparative example 3
A kind of foam pad and preparation method thereof, except the flow of supercritical carbon dioxide is in addition to 0.08kg/h, remaining and enforcement Example 5 is identical.
Comparative example 4
A kind of foam pad and preparation method thereof, except the flow of supercritical carbon dioxide is in addition to 2.60kg/h, remaining and enforcement Example 5 is identical.
The product obtaining embodiment 1-5 and comparative example 1-4 carries out performance test, and the method for testing of density is GB1033, Flexible method of testing is perception test, and the method for testing of shore hardness is GB2411, and the method for testing of sealing is self-control (fill the vial of edible oil with the bottle cap sealing of foam pad making, side is put on the platform being covered with blank sheet of paper permeability method, after 10 days Observing on blank sheet of paper whether permeability, permeability is defective, oil-tight for qualified).Test result is as shown in table 1 below:
Table 1
Visible, that the present invention provides foam pad, its excellent performance, splendid for the sealing property of Bottle cap spacer.It addition, this The foam pad that invention provides, it reaches food stage requirement, can be widely used for packaging for foodstuff, the contour security fields of drug packaging.
Applicant states, the present invention illustrates the method detailed of the present invention by above-described embodiment, but the present invention not office It is limited to above-mentioned method detailed, does not i.e. mean that the present invention has to rely on above-mentioned method detailed and could implement.Art Technical staff is it will be clearly understood that any improvement in the present invention, and the equivalence of raw material each to product of the present invention is replaced and auxiliary element Interpolation, concrete way choice etc., within the scope of all falling within protection scope of the present invention and disclosure.

Claims (10)

1. a foam pad, it is characterised in that described foam pad includes base layer and is covered in base layer upper and lower surface Film layer, described base layer is foaming body, and is the poroid body of uniform capillary, and the average pore size of described pore is 1-100 μm；
Described base layer is mainly prepared by following raw material by weight/mass percentage composition:
Wherein, in PE and PP, the weight/mass percentage composition of a kind of material is 0；
Described film layer is mainly prepared by following raw material by weight/mass percentage composition:
Wherein, in PE, PP and POE, the weight/mass percentage composition of a kind of material is 0.
Foam pad the most according to claim 1, it is characterised in that described base layer presses weight/mass percentage composition by following raw material Prepare:
Preferably, described releasing agent selected from oleamide, erucyl amide or oleamide and erucyl amide make with PE or PP For any one in the masterbatch of carrier or the combination of at least two；
Preferably, described nucleator is selected from sodium bicarbonate, citric acid as principle active component, with PE or PP or EVA as carrier Masterbatch.
Foam pad the most according to claim 1 and 2, it is characterised in that described film layer presses weight/mass percentage composition mainly by such as Lower raw material prepares:
Preferably, the described viscosifier any one or the group of at least two in EEA, polyester or maleic anhydride grafted resin Close；
Preferably, described releasing agent selected from oleamide, erucyl amide or oleamide and erucyl amide make with PE or PP For any one in the masterbatch of carrier or the combination of at least two；
Preferably, described opening agent is selected from erucyl amide.
4. according to the foam pad one of claim 1-3 Suo Shu, it is characterised in that the thickness of described base layer is 0.5- 10.0mm；
Preferably, the density of described base layer is 100-800kg/m3；
Preferably, the thickness of described film layer is 0.02-0.15mm.
5. according to the preparation method of the foam pad one of claim 1-4 Suo Shu, it is characterised in that described preparation method include as Lower step:
(1) the base layer raw material of formula ratio is sent in the hopper of single screw extrusion machine, fill in the middle part of single screw extrusion machine simultaneously Entering supercritical carbon dioxide, extruded foaming, obtain base layer, described supercritical carbon dioxide is under 50-220bar pressure Supercritical carbon dioxide；
(2) the film layer raw material of formula ratio is sent in single screw extrusion machine hopper, in base layer surface film, obtain described foaming Pad.
Preparation method the most according to claim 5, it is characterised in that pressure single screw rod in step (1) described extrusion Main frame temperature≤65 DEG C of extruder unit；
Preferably, step (1) described extrusion temperature is 90-210 DEG C；
Preferably, in step (1) described extrusion, the rotating speed of screw rod is 1-100rpm；
Preferably, the pressure-bearing scope of step (1) described single screw extrusion machine is 0-250bar.
7. according to the preparation method described in claim 5 or 6, it is characterised in that the stream of step (1) described supercritical carbon dioxide Amount is 0.10-2.50kg/h；
Preferably, the thickness of step (1) described base layer is 0.5-10.0mm；
Preferably, the density of step (1) described base layer is 100-800kg/m3。
8. according to the preparation method one of claim 5-7 Suo Shu, it is characterised in that the temperature of step (2) described extrusion is 80- 250℃；
Preferably, in step (2) described extrusion, the rotating speed of screw rod is 1-100rpm.
9. according to the preparation method one of claim 5-8 Suo Shu, it is characterised in that step (2) described base layer overlay film thickness For 0.02-0.15mm.
10. according to the preparation method one of claim 5-9 Suo Shu, it is characterised in that described preparation method comprises the steps:
(1) the base layer raw material of formula ratio is sent in the hopper of single screw extrusion machine, fill in the middle part of single screw extrusion machine simultaneously Entering the supercritical carbon dioxide under 50-220bar pressure, the flow of supercritical carbon dioxide is 0.10-2.50kg/h, extruded Foaming, obtaining density is 100-800kg/m3, thickness is the base layer of 0.5-10.0mm, wherein, and the list in described extrusion Main frame temperature≤65 DEG C of screw extruder；Extrusion temperature is 90-210 DEG C；In extrusion, the rotating speed of screw rod is 1-100rpm； The pressure-bearing scope of described single screw extrusion machine is 0-250bar；
(2) the film layer raw material of formula ratio is sent in single screw extrusion machine hopper, in base layer surface film, obtain overlay film thickness For the foam pad of 0.02-0.15mm, wherein, the temperature of extrusion is 80-250 DEG C；In extrusion, the rotating speed of screw rod is 1- 100rpm。
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018028111A1 (en) * 2016-08-12 2018-02-15 江苏锦厚新材料科技有限公司 Foam pad and preparation method therefor
CN109370018A (en) * 2018-11-12 2019-02-22 王诚 A kind of plastic sealing strip suitable for aseptic packaging
CN109627482A (en) * 2018-10-24 2019-04-16 佛山市高明科力机械有限公司 The production line and production technology of supercritical carbon dioxide physical blowing PE environmental-protection sealing gasket product
CN110757811A (en) * 2019-10-29 2020-02-07 上海允泉新材料科技有限公司 Sportswear composition and method for producing the same
CN111655592A (en) * 2018-02-01 2020-09-11 克宁克莱克杜威埃格伯特有限公司 Container lid and liner and method of making same
CN112812355A (en) * 2020-12-31 2021-05-18 厦门天生爱科技有限公司 Functional polymer foaming material with slow-release volatile Chinese herbal medicine effective components, preparation method and application

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102040237B1 (en) * 2018-06-28 2019-11-06 주식회사 휴비스 A molded product having gas barrier layer, A packaging container comprising the same, and Method for preparing the molded product

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997033935A1 (en) * 1996-03-11 1997-09-18 The Dow Chemical Company Foamed gaskets made from homogeneous olefin polymers
CN104250404A (en) * 2014-09-25 2014-12-31 无锡市天聚科技有限公司 Can bottle cap gasket aggregate and preparation method thereof
CN204096282U (en) * 2014-07-29 2015-01-14 江阴江化微电子材料股份有限公司 Packing barrel gasket seal, containing the bung of sealing pad and packing barrel
CN104629176A (en) * 2015-01-22 2015-05-20 浙江新恒泰新材料有限公司 Open-celled polypropylene microcellular foaming sheet and production method thereof

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191101033A (en) 1910-02-03 1911-07-13 John Maurentius Werner Improvements in Muffler for Internal-combustion Engines.
FR470267A (en) 1914-03-30 1914-09-03 Cellophane Sa New photographic support and its production process
GB1141894A (en) * 1967-02-20 1969-02-05 Shell Int Research Method of producing a laminated foamed polystyrene sheet
US4807772A (en) * 1988-03-04 1989-02-28 Owens-Illinois Closure Inc. Polypropylene closure with removable liner
US5000992A (en) * 1989-06-01 1991-03-19 The Dow Chemical Company Coextruded multilayer foamed film for plastic container closures and process for manufacture
US5601200A (en) * 1991-09-06 1997-02-11 Tri-Seal International, Inc. Cap liner for hot filled container and method
CN2143207Y (en) * 1992-11-26 1993-10-06 青岛市平度县鞋用材料厂 Sealing cushion of drink bottle
CN1087866A (en) * 1992-12-08 1994-06-15 青岛市平度鞋用材料厂 Drinks, beverage bottle cap sealing material and preparation method
US7770747B2 (en) * 1997-04-24 2010-08-10 Nomacorc, Llc Synthetic closure
CN1465507A (en) 2002-07-01 2004-01-07 上海紫日包装有限公司 Lining material for bottle cap and use in cap of plastic bottle of heat filling beverage
JP2007284126A (en) * 2006-04-18 2007-11-01 Mitsui Chemical Fabro Inc Cap liner
US9914565B2 (en) * 2009-02-11 2018-03-13 Vinventions Usa, Llc Synthetic closure
JP5613442B2 (en) * 2010-04-21 2014-10-22 キョーラク株式会社 Method for forming panel with skin, panel with skin
JP6488288B2 (en) * 2013-06-20 2019-03-20 サウディ ベーシック インダストリーズ コーポレイション Foam film composed of polyethylene foam
CN104356465A (en) * 2014-10-24 2015-02-18 南京京锦元科技实业有限公司 Bottle cap inner spacer material suitable for carbonated beverage
CN105001485A (en) * 2015-06-18 2015-10-28 吴江海宏塑料制品有限公司 Gasket material used for crown bottle covers and preparation method for gasket material
CN106317550B (en) * 2016-08-12 2019-01-18 江苏锦厚新材料科技有限公司 A kind of foam pad and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997033935A1 (en) * 1996-03-11 1997-09-18 The Dow Chemical Company Foamed gaskets made from homogeneous olefin polymers
CN204096282U (en) * 2014-07-29 2015-01-14 江阴江化微电子材料股份有限公司 Packing barrel gasket seal, containing the bung of sealing pad and packing barrel
CN104250404A (en) * 2014-09-25 2014-12-31 无锡市天聚科技有限公司 Can bottle cap gasket aggregate and preparation method thereof
CN104629176A (en) * 2015-01-22 2015-05-20 浙江新恒泰新材料有限公司 Open-celled polypropylene microcellular foaming sheet and production method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王秘: ""提高PE垫片瓶盖密封性的探讨"", 《中外酒业·啤酒科技》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018028111A1 (en) * 2016-08-12 2018-02-15 江苏锦厚新材料科技有限公司 Foam pad and preparation method therefor
CN111655592A (en) * 2018-02-01 2020-09-11 克宁克莱克杜威埃格伯特有限公司 Container lid and liner and method of making same
CN109627482A (en) * 2018-10-24 2019-04-16 佛山市高明科力机械有限公司 The production line and production technology of supercritical carbon dioxide physical blowing PE environmental-protection sealing gasket product
CN109370018A (en) * 2018-11-12 2019-02-22 王诚 A kind of plastic sealing strip suitable for aseptic packaging
CN110757811A (en) * 2019-10-29 2020-02-07 上海允泉新材料科技有限公司 Sportswear composition and method for producing the same
CN112812355A (en) * 2020-12-31 2021-05-18 厦门天生爱科技有限公司 Functional polymer foaming material with slow-release volatile Chinese herbal medicine effective components, preparation method and application

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GB2552865A (en) 2018-02-14
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