CN114872413A - Core layer foaming composite material and preparation method thereof - Google Patents

Core layer foaming composite material and preparation method thereof Download PDF

Info

Publication number
CN114872413A
CN114872413A CN202210655223.6A CN202210655223A CN114872413A CN 114872413 A CN114872413 A CN 114872413A CN 202210655223 A CN202210655223 A CN 202210655223A CN 114872413 A CN114872413 A CN 114872413A
Authority
CN
China
Prior art keywords
zone
core layer
layer
hard material
foaming
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.)
Pending
Application number
CN202210655223.6A
Other languages
Chinese (zh)
Inventor
王进
张建
于海霞
潘炘
鲁春富
冯永顺
庄晓伟
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.)
Zhejiang Academy of Forestry
Original Assignee
Zhejiang Academy of Forestry
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Academy of Forestry filed Critical Zhejiang Academy of Forestry
Priority to CN202210655223.6A priority Critical patent/CN114872413A/en
Publication of CN114872413A publication Critical patent/CN114872413A/en
Pending legal-status Critical Current

Links

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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B29C44/34—Auxiliary operations
    • B29C44/60—Measuring, controlling or regulating
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0023—Use of organic additives containing oxygen
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • 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
    • B32B2266/0264—Polyester
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/308—Heat stability
    • 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
    • B32B2307/548—Creep
    • 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
    • B32B2419/00—Buildings or parts thereof
    • B32B2419/04—Tiles for floors or walls
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/18—Binary blends of expanding agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention provides a core layer foaming composite material, which comprises a first hard material layer, a foaming core layer and a second hard material layer from top to bottom; the first hard material layer and the second hard material layer are both made of polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester, calcium carbonate, stearic acid and acrylate; the foaming core layer is made of polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester, calcium carbonate, stearic acid, azodicarbonamide, ammonium bicarbonate and acrylate. The preparation method comprises the following steps: and extruding the hard material and the foamed core layer material extruded by the extruder through a distributor to obtain a material of the first hard material layer, a material of the foamed core layer and a material of the second hard material layer, foaming and molding in a mold, cooling by a cooling roller set, preserving heat by a calender roller set, and forming in a fixed thickness manner to obtain the core layer foamed composite material. The core layer foaming composite material has good dimensional stability, can be used as a geothermal floor, and has light weight.

Description

Core layer foaming composite material and preparation method thereof
Technical Field
The invention belongs to the technical field of composite materials, and particularly relates to a core layer foaming composite material and a preparation method thereof.
Background
The WPC (wood-plastic floor) on the current market mainly comprises an LVT (soft polyvinyl chloride) surface layer (wear-resistant, color film and LVT base material), a WCP base material, a back cushion material and the like, and the overall density is 1.3-1.5g/cm 3 The processing procedure is complicated, the WPC base material and the LVT base material are firstly produced in the WCP floor production, the WPC wood-plastic plate is technically arranged, a shaping mold is required to be cooled and shaped after a mold outlet, online wear-resistant thermal compounding and one-step forming with a color film cannot be realized, the LVT surface layer is formed by performing hot-pressing compounding treatment on the LVT base material, the wear-resistant layer and the color film, and then surface UV, punching forming, attaching, cold pressing, cutting and grooving processes are performed, the time, labor and resources consumed by the whole production process are more, and the process is complicated, so that the yield of the production link is reduced. In addition, the WPC wood-plastic floor has a large heating size change rate, so that the floor has serious buckling tile-shaped deformation in the use process. WPC wood-plastic floor uses PVC (polyvinyl chloride floor) and calcium carbonate mixed extruded sheet, but PVC is an undegradable sheetAnd (4) decomposing the material.
Disclosure of Invention
The core layer foamed composite material has good dimensional stability, can be used as a geothermal floor, and has light weight.
In order to solve the technical problems, the invention adopts the technical scheme that: the core layer foaming composite material consists of a first hard material layer, a foaming core layer and a second hard material layer from top to bottom in sequence;
the first hard material layer and the second hard material layer are both prepared from the following raw materials in parts by weight: 50 to 100 portions of polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester, 100 to 300 portions of calcium carbonate, 1 to 4 portions of stearic acid and 5 to 10 portions of acrylate;
the foaming core layer is prepared from the following raw materials in parts by weight: 100 to 120 portions of polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester, 150 to 200 portions of calcium carbonate, 1 to 5 portions of stearic acid, 0.7 to 0.9 portion of azodicarbonamide, 1.0 to 1.2 portions of ammonium bicarbonate and 10 to 20 portions of acrylic ester.
The first hard material layer and the second hard material layer mainly improve the thermal stability of the plate, calcium carbonate is added into polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester, the cost is reduced, the size stability of the product is improved, stearic acid is added, the fluidity of the material is improved in extrusion, the extrusion is facilitated, acrylate is added, and the toughness of the product is improved.
The foaming core layer has the function of reducing the density of the material, the foaming core layer is prepared by adding calcium carbonate into polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester on the aspect of material selection, the cost is reduced, stearic acid is added, the fluidity of the material is improved in extrusion, the extrusion is convenient, acrylate is added, and the toughness of the product is improved. Adding azodicarbonamide and ammonium bicarbonate to provide foaming gas to the product during extrusion, and combining to prepare a foamed base material to reduce the density of the product.
The invention also provides a method for preparing the core layer foaming composite material, which comprises the following steps:
s1, preparation of a first material: mixing polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, calcium carbonate, stearic acid and acrylate, heating to 100 ℃ at a heating rate of 10 ℃/min while stirring at a temperature and rotating speed of 500 r/min-1000 r/min, and then naturally cooling to 50 ℃ while stirring at a rotating speed of 100 r/min-300 r/min to obtain a first material;
s2, material II: mixing polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, calcium carbonate, stearic acid, azodicarbonamide, ammonium bicarbonate and acrylate, heating to 110 ℃ at a heating rate of 10 ℃/min while stirring at a temperature rotating speed of 500 r/min-1000 r/min, and then naturally cooling to 50 ℃ while stirring at a rotating speed of 100 r/min-300 r/min to obtain a material II;
s3, feeding the material I obtained in the step S1 into a first extruder for plasticizing and extruding to obtain a hard material; set gradually in the first extruder and be: a first zone at 180 ℃, a second zone at 175 ℃, a third zone at 170 ℃, a fourth zone at 170 ℃, a fifth zone at 170 ℃ and a confluence core at 165 ℃, wherein the first material is fed and then sequentially passes through the first zone, the second zone, the third zone, the fourth zone, the fifth zone and the confluence core to finally obtain a hard material;
s4, feeding the material II obtained in the step S2 into a second extruder for plasticizing and extruding to obtain a foaming core layer material; the second extruder is sequentially provided with: a first zone at 165 ℃, a second zone at 170 ℃, a third zone at 180 ℃, a fourth zone at 175 ℃, a fifth zone at 175 ℃ and a confluence core at 165 ℃, wherein the second material is fed and then sequentially passes through the first zone, the second zone, the third zone, the fourth zone, the fifth zone and the confluence core to finally obtain a foaming core layer material;
s5, extruding the hard material obtained in S3 and the foamed core layer material obtained in S4 through a distributor to obtain a first hard material layer material, a foamed core layer material and a second hard material layer material simultaneously to obtain a core layer foamed composite material preform, putting the core layer foamed composite material preform into a mold, and carrying out foaming molding at the temperature of 170 ℃ to obtain a co-extruded foamed base material;
the materials of the core layer foaming composite material preform are sequentially the materials of the first hard material layer, the materials of the foaming core layer and the materials of the second hard material layer from top to bottom; the hard material is divided into a material of a first hard material layer and a material of a second hard material layer through a distributor;
and S6, cooling the co-extruded foamed base material obtained in the S5 by a cooling roller set at the temperature of 20 ℃, sequentially performing heat preservation and constant-thickness forming by a first calendering roller set at the roller temperature of 110-120 ℃ and a second calendering roller set at the roller temperature of 150-160 ℃ to obtain the core layer foamed composite material.
Preferably, the number of cooling roller sets in S6 is two, including a first cooling roller set and a second cooling roller set.
Compared with the prior art, the invention has the following advantages:
the first layer and the second layer of the hard layer in the core layer foaming composite material can effectively improve the size stability of the substrate, and the weight is pressed without traces. The foaming core layer can effectively reduce the density of the floor, simultaneously can effectively improve the surface hardness of the substrate, prevent foam holes of the foaming core layer from collapsing, improve the rigidity, creep resistance and thermal stability of the floor, and ensure that the floor is not deformed in the using process.
The present invention will be described in further detail with reference to examples.
Detailed Description
Example 1
In the core layer foamed composite material of the embodiment, the core layer foamed composite material is composed of a first hard material layer, a foamed core layer and a second hard material layer from top to bottom in sequence;
the first hard material layer and the second hard material layer are respectively prepared from the following raw materials in parts by weight: 50 parts of polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester, 300 parts of calcium carbonate, 1 part of stearic acid and 5 parts of acrylate;
the foaming core layer is prepared from the following raw materials in parts by weight: 100 parts of polyethylene terephthalate-1, 4-cyclohexanedimethanol ester, 150 parts of calcium carbonate, 5 parts of stearic acid, 0.7 part of azodicarbonamide, 1.0 part of ammonium bicarbonate and 10 parts of acrylate.
The embodiment also provides a method for preparing the core layer foaming composite material, which comprises the following steps:
s1, preparation of a first material: mixing polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, calcium carbonate, stearic acid and acrylate, heating to 100 ℃ at a heating rate of 10 ℃/min while stirring at a temperature and rotating speed of 700r/min, and then naturally cooling to 50 ℃ while stirring at a rotating speed of 200r/min to obtain a first material;
s2, material II: mixing polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, calcium carbonate, stearic acid, azodicarbonamide, ammonium bicarbonate and acrylate, heating to 110 ℃ at a heating rate of 10 ℃/min while stirring at a temperature rotating speed of 800r/min, and naturally cooling to 50 ℃ while stirring at a rotating speed of 200r/min to obtain a material II;
s3, feeding the material I obtained in the step S1 into a first extruder for plasticizing and extruding to obtain a hard material; set gradually in the first extruder and be: feeding the first material to sequentially pass through the first zone, the second zone, the third zone, the fourth zone, the fifth zone and the confluence core at 180 ℃, 175 ℃, 170 ℃ and 165 ℃ to finally obtain a hard material;
the first extruder was model BYSJ-92, available from Boyu plastics, Inc., Wuxi;
s4, feeding the material II obtained in the step S2 into a second extruder for plasticizing and extruding to obtain a foaming core layer material; the second extruder is sequentially provided with: a first zone at 165 ℃, a second zone at 170 ℃, a third zone at 180 ℃, a fourth zone at 175 ℃, a fifth zone at 175 ℃ and a confluence core at 165 ℃, wherein the second material is fed and then sequentially passes through the first zone, the second zone, the third zone, the fourth zone, the fifth zone and the confluence core to finally obtain a foaming core layer material;
the second extruder was model BYSJ-110, available from Boyu plastics, Inc., Wuxi;
s5, extruding the hard material obtained in the S3 and the foamed core layer material obtained in the S4 through a distributor to obtain a material of the first hard material layer, a material of the foamed core layer and a material of the second hard material layer simultaneously to obtain a core layer foamed composite material preform, putting the core layer foamed composite material preform into a mold, and carrying out foaming molding at the temperature of 170 ℃ to obtain a co-extruded foamed base material;
the materials of the core layer foaming composite material preform are sequentially the materials of the first hard material layer, the materials of the foaming core layer and the materials of the second hard material layer from top to bottom; the hard material is divided into a material of a first hard material layer and a material of a second hard material layer through a distributor;
s6, cooling the co-extruded foamed base material obtained in the S5 by a cooling roller set at the temperature of 20 ℃, and then sequentially performing heat preservation and constant-thickness forming by a first calendering roller set at the roller temperature of 110 ℃ and a second calendering roller set at the roller temperature of 150 ℃ to obtain a core layer foamed composite material; the number of the cooling roller sets is two, and the cooling roller sets comprise a first cooling roller set and a second cooling roller set.
Example 2
In the core layer foamed composite material of the embodiment, the core layer foamed composite material is composed of a first hard material layer, a foamed core layer and a second hard material layer from top to bottom in sequence;
the first hard material layer and the second hard material layer are both prepared from the following raw materials in parts by weight: 100 parts of polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester, 100 parts of calcium carbonate, 4 parts of stearic acid and 10 parts of acrylate;
the foaming core layer is prepared from the following raw materials in parts by weight: 120 parts of polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, 200 parts of calcium carbonate, 1 part of stearic acid, 0.9 part of azodicarbonamide, 1.2 parts of ammonium bicarbonate and 20 parts of acrylic ester.
The embodiment also provides a method for preparing the core layer foaming composite material, which comprises the following steps:
s1, preparation of a first material: mixing polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, calcium carbonate, stearic acid and acrylate, heating to 100 ℃ at a heating rate of 10 ℃/min while stirring at a temperature and rotating speed of 500r/min, and then naturally cooling to 50 ℃ while stirring at a rotating speed of 100r/min to obtain a first material;
s2, material II: mixing polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, calcium carbonate, stearic acid, azodicarbonamide, ammonium bicarbonate and acrylate, heating to 110 ℃ at a heating rate of 10 ℃/min while stirring at a temperature and rotating speed of 500r/min, and naturally cooling to 50 ℃ while stirring at a rotating speed of 100r/min to obtain a material II;
s3, feeding the material I obtained in the step S1 into a first extruder for plasticizing and extruding to obtain a hard material; set gradually in the first extruder and be: a first zone at 180 ℃, a second zone at 175 ℃, a third zone at 170 ℃, a fourth zone at 170 ℃, a fifth zone at 170 ℃ and a confluence core at 165 ℃, wherein the first material is fed and then sequentially passes through the first zone, the second zone, the third zone, the fourth zone, the fifth zone and the confluence core to finally obtain a hard material;
the first extruder was model BYSJ-92, available from Boyu plastics, Inc., Wuxi;
s4, feeding the material II obtained in the step S2 into a second extruder for plasticizing and extruding to obtain a foaming core layer material; the second extruder is sequentially provided with: a first zone at 165 ℃, a second zone at 170 ℃, a third zone at 180 ℃, a fourth zone at 175 ℃, a fifth zone at 175 ℃ and a confluence core at 165 ℃, wherein the second material is fed and then sequentially passes through the first zone, the second zone, the third zone, the fourth zone, the fifth zone and the confluence core to finally obtain a foaming core layer material;
the second extruder was model BYSJ-110, available from Boyu plastics, Inc., Wuxi;
s5, extruding the hard material obtained in the S3 and the foamed core layer material obtained in the S4 through a distributor to obtain a material of a first hard material layer, a material of a foamed core layer and a material of a second hard material layer simultaneously to obtain a core layer foamed composite material preform, putting the core layer foamed composite material preform into a mold, carrying out foaming molding at the temperature of 170 ℃, and controlling the foaming thickness through a die lip gap to obtain a co-extruded foamed base material;
the materials of the core layer foaming composite material preform are sequentially the materials of the first hard material layer, the materials of the foaming core layer and the materials of the second hard material layer from top to bottom; the hard material is divided into a material of a first hard material layer and a material of a second hard material layer through a distributor;
s6, cooling the co-extruded foamed base material obtained in the S5 by a cooling roller set at the temperature of 20 ℃, and sequentially carrying out heat preservation and constant-thickness forming on the co-extruded foamed base material by a first calendering roller set at the roller temperature of 120 ℃ and a second calendering roller set at the roller temperature of 160 ℃ to obtain a core layer foamed composite material; the number of the cooling roller sets is two, and the cooling roller sets comprise a first cooling roller set and a second cooling roller set.
Example 3
In the core layer foamed composite material of the embodiment, the core layer foamed composite material is composed of a first hard material layer, a foamed core layer and a second hard material layer from top to bottom in sequence;
the first hard material layer and the second hard material layer are both prepared from the following raw materials in parts by weight: 80 parts of polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester, 200 parts of calcium carbonate, 2 parts of stearic acid and 8 parts of acrylate;
the foaming core layer is prepared from the following raw materials in parts by weight: 110 parts of polyethylene terephthalate-1, 4-cyclohexanedimethanol ester, 170 parts of calcium carbonate, 3 parts of stearic acid, 0.8 part of azodicarbonamide, 1.1 parts of ammonium bicarbonate and 15 parts of acrylate.
The embodiment also provides a method for preparing the core layer foaming composite material, which comprises the following steps:
s1, preparation of a first material: mixing polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, calcium carbonate, stearic acid and acrylate, heating to 100 ℃ at a heating rate of 10 ℃/min while stirring at a temperature and rotating speed of 1000r/min, and then naturally cooling to 50 ℃ while stirring at a rotating speed of 300r/min to obtain a first material;
s2, material II: mixing polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, calcium carbonate, stearic acid, azodicarbonamide, ammonium bicarbonate and acrylate, heating to 110 ℃ at a heating rate of 10 ℃/min while stirring at a temperature rotating speed of 1000r/min, and naturally cooling to 50 ℃ while stirring at a rotating speed of 300r/min to obtain a material II;
s3, feeding the material I obtained in the step S1 into a first extruder for plasticizing and extruding to obtain a hard material; set gradually in the first extruder and be: feeding the first material to sequentially pass through the first zone, the second zone, the third zone, the fourth zone, the fifth zone and the confluence core at 180 ℃, 175 ℃, 170 ℃ and 165 ℃ to finally obtain a hard material;
the first extruder was model BYSJ-92, available from Boyu plastics, Inc., Wuxi;
s4, feeding the material II obtained in the step S2 into a second extruder for plasticizing and extruding to obtain a foaming core layer material; the second extruder is sequentially provided with: a first zone at 165 ℃, a second zone at 170 ℃, a third zone at 180 ℃, a fourth zone at 175 ℃, a fifth zone at 175 ℃ and a confluence core at 165 ℃, wherein the second material is fed and then sequentially passes through the first zone, the second zone, the third zone, the fourth zone, the fifth zone and the confluence core to finally obtain a foaming core layer material;
the second extruder was model BYSJ-110, available from Boyu plastics, Inc., Wuxi;
s5, extruding the hard material obtained in the S3 and the foamed core layer material obtained in the S4 through a distributor to obtain a material of the first hard material layer, a material of the foamed core layer and a material of the second hard material layer simultaneously to obtain a core layer foamed composite material preform, putting the core layer foamed composite material preform into a mold, and carrying out foaming molding at the temperature of 170 ℃ to obtain a co-extruded foamed base material;
the materials of the core layer foaming composite material preform are sequentially the materials of the first hard material layer, the materials of the foaming core layer and the materials of the second hard material layer from top to bottom; the hard material is divided into a material of a first hard material layer and a material of a second hard material layer through a distributor;
s6, cooling the co-extruded foamed base material obtained in the S5 by a cooling roller set at the temperature of 20 ℃, and sequentially carrying out heat preservation and fixed-thickness forming by a first calendering roller set at the roller temperature of 115 ℃ and a second calendering roller set at the roller temperature of 155 ℃ to obtain a core layer foamed composite material; the number of the cooling roller sets is two, and the cooling roller sets comprise a first cooling roller set and a second cooling roller set.
The core layer foamed composite materials prepared in examples 1 to 3 were subjected to performance tests, and the results are shown in table 1.
Table 1 testing of the properties of core foamed composites prepared in examples 1-3
Density of Warp of Thermal deformation vicat Static bending strength Dimensional change of heating
Example 1 1.250g/cm 3 0.90mm 72℃ 32.3MPa 0.08％
Example 2 1.432g/cm 3 0.70mm 82℃ 43.9MPa 0.05％
Example 3 1.621g/cm 3 0.60mm 85℃ 47.2MPa 0.03％
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes of the above embodiments according to the technical essence of the invention are still within the protection scope of the technical solution of the invention.

Claims (3)

1. The core layer foaming composite material is characterized by comprising a first hard material layer, a foaming core layer and a second hard material layer from top to bottom in sequence;
the first hard material layer and the second hard material layer are both prepared from the following raw materials in parts by weight: 50 to 100 portions of polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester, 100 to 300 portions of calcium carbonate, 1 to 4 portions of stearic acid and 5 to 10 portions of acrylate;
the foaming core layer is prepared from the following raw materials in parts by weight: 100 to 120 portions of polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester, 150 to 200 portions of calcium carbonate, 1 to 5 portions of stearic acid, 0.7 to 0.9 portion of azodicarbonamide, 1.0 to 1.2 portions of ammonium bicarbonate and 10 to 20 portions of acrylic ester.
2. A method of making the core foam composite of claim 1, comprising:
s1, preparation of a first material: mixing polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, calcium carbonate, stearic acid and acrylate, heating to 100 ℃ at a heating rate of 10 ℃/min while stirring at a temperature and rotating speed of 500 r/min-1000 r/min, and then naturally cooling to 50 ℃ while stirring at a rotating speed of 100 r/min-300 r/min to obtain a first material;
s2, material II: mixing polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, calcium carbonate, stearic acid, azodicarbonamide, ammonium bicarbonate and acrylate, heating to 110 ℃ at a heating rate of 10 ℃/min while stirring at a temperature rotating speed of 500 r/min-1000 r/min, and then naturally cooling to 50 ℃ while stirring at a rotating speed of 100 r/min-300 r/min to obtain a material II;
s3, feeding the material I obtained in the step S1 into a first extruder for plasticizing and extruding to obtain a hard material; set gradually in the first extruder and be: feeding the first material to sequentially pass through the first zone, the second zone, the third zone, the fourth zone, the fifth zone and the confluence core at 180 ℃, 175 ℃, 170 ℃ and 165 ℃ to finally obtain a hard material;
s4, feeding the material II obtained in the step S2 into a second extruder for plasticizing and extruding to obtain a foaming core layer material; the second extruder is sequentially provided with: a first zone at 165 ℃, a second zone at 170 ℃, a third zone at 180 ℃, a fourth zone at 175 ℃, a fifth zone at 175 ℃ and a confluence core at 165 ℃, wherein the second material is fed and then sequentially passes through the first zone, the second zone, the third zone, the fourth zone, the fifth zone and the confluence core to finally obtain a foaming core layer material;
s5, extruding the hard material obtained in the S3 and the foamed core layer material obtained in the S4 through a distributor to obtain a material of the first hard material layer, a material of the foamed core layer and a material of the second hard material layer simultaneously to obtain a core layer foamed composite material preform, putting the core layer foamed composite material preform into a mold, and carrying out foaming molding at the temperature of 170 ℃ to obtain a co-extruded foamed base material;
the materials of the core layer foaming composite material preform are sequentially the materials of the first hard material layer, the materials of the foaming core layer and the materials of the second hard material layer from top to bottom; the hard material is divided into a material of a first hard material layer and a material of a second hard material layer through a distributor;
and S6, cooling the co-extruded foamed base material obtained in the S5 by a cooling roller set at the temperature of 20 ℃, sequentially performing heat preservation and constant-thickness forming by a first calendering roller set at the roller temperature of 110-120 ℃ and a second calendering roller set at the roller temperature of 150-160 ℃ to obtain the core layer foamed composite material.
3. The method of claim 2 wherein the number of cooling roller sets in S6 is two, including a first cooling roller set and a second cooling roller set.
CN202210655223.6A 2022-06-10 2022-06-10 Core layer foaming composite material and preparation method thereof Pending CN114872413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210655223.6A CN114872413A (en) 2022-06-10 2022-06-10 Core layer foaming composite material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210655223.6A CN114872413A (en) 2022-06-10 2022-06-10 Core layer foaming composite material and preparation method thereof

Publications (1)

Publication Number Publication Date
CN114872413A true CN114872413A (en) 2022-08-09

Family

ID=82682381

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210655223.6A Pending CN114872413A (en) 2022-06-10 2022-06-10 Core layer foaming composite material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN114872413A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000220079A (en) * 1999-01-28 2000-08-08 Dainippon Printing Co Ltd Floor material
US20160001527A1 (en) * 2014-07-01 2016-01-07 Zhejiang Yongyu Bamboo Joint-Stock Co., Ltd. Composite floor and manufacturing method thereof
CN106836712A (en) * 2017-01-23 2017-06-13 浙江晶通塑胶有限公司 Composite floor board and preparation method thereof
CN110626027A (en) * 2019-08-16 2019-12-31 浙江永裕竹业股份有限公司 Co-extrusion SPC foamed floor and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000220079A (en) * 1999-01-28 2000-08-08 Dainippon Printing Co Ltd Floor material
US20160001527A1 (en) * 2014-07-01 2016-01-07 Zhejiang Yongyu Bamboo Joint-Stock Co., Ltd. Composite floor and manufacturing method thereof
CN106836712A (en) * 2017-01-23 2017-06-13 浙江晶通塑胶有限公司 Composite floor board and preparation method thereof
CN110626027A (en) * 2019-08-16 2019-12-31 浙江永裕竹业股份有限公司 Co-extrusion SPC foamed floor and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
中国轻工会: "《硬质塑木复合低发泡产品生产技术和基础知识》", 南昌：江西科学技术出版社, pages: 194 - 195 *

Similar Documents

Publication Publication Date Title
CN108384156B (en) Polyvinyl chloride co-extrusion foaming furniture board and preparation method thereof
US9527975B2 (en) PVC composite material, foam board, production method and apparatus thereof, and flooring
US20240309653A1 (en) Pvc composite material, foam board, and flooring
CN112895642B (en) Micro-foaming PVC floor without plasticizer and preparation method thereof
CN111003968A (en) High-performance ecological stone floor and preparation process thereof
CN105968679B (en) A kind of refrigerator inner liner plates and preparation method thereof and refrigerator used
CN102532754A (en) Crosslinking type polyvinyl chloride/thermoplastic polyurethane light foaming material and preparation method thereof
CN103270094B (en) High strength extruded thermoplastic polymer foam
CN111138767B (en) Weighted and hardened open-cell EPDM rubber blending molding repeated high-rate foaming backing plate and preparation method thereof
CN112793268A (en) Composite stone crystal floor and manufacturing method thereof
CN114872413A (en) Core layer foaming composite material and preparation method thereof
CN104893157B (en) Thickness is 9 18mm polyvinyl chloride foam Furniture panels
EP1027977A1 (en) Process for producing foamable composite polyolefin resin sheet and composite foam
CN107541031A (en) A kind of modified PGA or PLGA fully biodegradable foamed material and preparation method thereof
CN109181165A (en) Low-cost polyvinyl chloride acoustic celotex board
CN102153826A (en) Composites and methods for producing plastic-steel square timber and straw foamed plastic square timber
CN108485115A (en) polyvinyl chloride sanding wood-like decorative plate and preparation method thereof
CN111138704A (en) Application of high-melt-strength PVC (polyvinyl chloride) foaming regulator in foaming plate
CN102311575A (en) PP foaming composite additive
CN115926236A (en) Low-density high-filling SPC floor and preparation method thereof
CN101596787B (en) Method for continuously preparing polymer composite multilayer plates
CN106363892A (en) Forming method for polyvinyl chloride physical foam board
CN116118090A (en) Polymer foam article and preparation method and application thereof
JP2535180B2 (en) Method for manufacturing laminated body
CN109955452A (en) A kind of isotactic polypropylene extrusion foaming device and technique

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination