CN110894350A - Novel foaming material and production process thereof - Google Patents

Novel foaming material and production process thereof Download PDF

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Publication number
CN110894350A
CN110894350A CN201911335105.1A CN201911335105A CN110894350A CN 110894350 A CN110894350 A CN 110894350A CN 201911335105 A CN201911335105 A CN 201911335105A CN 110894350 A CN110894350 A CN 110894350A
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Prior art keywords
screw
novel
screw extruder
foaming
stirring
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Inventor
李臣
朱晨
秦凯
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Changzhou Huahang Packaging Material Co Ltd
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Changzhou Huahang Packaging Material Co Ltd
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Priority to CN201911335105.1A priority Critical patent/CN110894350A/en
Publication of CN110894350A publication Critical patent/CN110894350A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • 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
    • C08J9/12—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 physical blowing agent
    • C08J9/14—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 physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • 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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J9/04—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
    • C08J9/12—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 physical blowing agent
    • C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
    • 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
    • C08J9/12—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 physical blowing agent
    • C08J9/14—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 physical blowing agent organic
    • C08J9/142—Compounds containing oxygen but no halogen atom
    • 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
    • C08J9/12—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 physical blowing agent
    • C08J9/14—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 physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/147—Halogen containing compounds containing carbon and halogen atoms only
    • C08J9/148—Halogen containing compounds containing carbon and halogen atoms only perfluorinated
    • 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
    • C08J2203/06—CO2, N2 or noble gases
    • 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
    • C08J2203/12—Organic compounds only containing carbon, hydrogen and oxygen atoms, e.g. ketone or alcohol
    • 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
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • 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
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
    • C08J2203/144—Perhalogenated saturated hydrocarbons, e.g. F3C-CF3
    • 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
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/04—Foams characterised by their properties characterised by the foam pores
    • C08J2205/052—Closed cells, i.e. more than 50% of the pores are closed
    • 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
    • C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
    • C08J2371/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
    • C08J2371/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
    • C08J2371/12—Polyphenylene oxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2451/04—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to rubbers

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

The invention discloses a novel foaming material and a production process thereof, wherein the novel foaming material comprises the following components: polystyrene: 10-50%; polyphenylene ether: 20-60%; polyethylene: 5-20%; ethylene-vinyl acetate copolymer: 5-20%; inorganic materials: the balance; the above percentages are mass percentages. The foaming material is mainly used for silencing pads of SPC floors and other floors, and has the characteristics of temperature impact resistance, fine and uniform foam holes, high elasticity, strong flexibility, environmental protection, antibacterial and mildewproof functions, excellent surface adhesion, high light hardness and high cost performance.

Description

Novel foaming material and production process thereof
Technical Field
The invention relates to a novel foam material and a production process thereof, belonging to the technical field of high polymer materials.
Background
The Polyethylene (PE) foam plastic is a material with small density, good low-temperature performance and chemical corrosion resistance, and certain physical property and mechanical strength, so that the Polyethylene (PE) foam plastic can be used for daily products, precision instrument packaging materials, heat-insulating materials, water floating materials, natural wood replacement and the like, has a very wide application range, and is developed rapidly. Polyethylene belongs to polyolefin plastics and is characterized by high crystallization, resin can hardly flow until the crystallization melting temperature is not reached, and after the melting temperature is reached, the melt viscosity of the whole polymer is sharply reduced, so that bubbles generated in the foaming process are difficult to maintain.
Polyethylene (PE) foam plastic is widely applied to the field of silent pads of floors, PE foam has the advantages of light weight, no toxicity, no odor, good water absorption and the like, but common PE foam materials have poor rigidity and strength, coarse closed cell structures and relatively poor waterproof and mildew-proof functions, so that the application of the PE foam in some fields is limited.
Disclosure of Invention
In order to overcome the defects, the invention provides a novel foam material and a production process thereof.
The technical scheme of the invention is as follows:
a novel foaming material comprises the following components:
10 to 50 percent of polystyrene
20-60% of polyphenyl ether
5-20% of polyethylene
5-20% of ethylene-vinyl acetate copolymer
Balance of inorganic materials
The above percentages are mass percentages.
Preferably, the polystyrene is impact-resistant polystyrene.
Preferably, the polyethylene is low density polyethylene.
Preferably, the inorganic material is silica.
A production process of a novel foaming material comprises the following steps:
(1) stirring and mixing the materials
Placing the materials of the composition of claim 1 into a stirring system for stirring; the stirring speed is 60-120 rpm;
(2) first extrusion molding
The material enters a first screw extruder to be melted and pushed; injecting a foaming agent through a metering pump before a screw mixing zone in the material extrusion process so as to fully mix the material, the foaming agent and the nucleating agent, wherein the ratio of the material, the nucleating agent and the foaming agent is 90-96%, 0.2-2% and 3-8%, and the ratio is mass percent;
controlling the temperature of melting and mixing within 170-220 ℃, and gradually increasing;
(4) second extrusion molding
The material mixed in the step (2) is forced to extrude in the screw cylinder to pass through the filtering system and the connecting system to enter a second screw extruder, and the second screw extruder cools the screw cylinder or the screw through a water circulation system or an oil circulation system so as to achieve the purpose of low-temperature plasticization of the material in the screw cylinder; the cooling temperature of the material in the screw cylinder of the second screw extruder is gradually reduced, and the cooling plastification is gradually reduced from 150-95 ℃; the material is cooled and plasticized by a second screw extruder and then enters a circular die orifice through a compression runner for extrusion;
(5) solidifying the foam hole structure of the extruded foaming material by an internal and external air device and a shaping and cooling device;
(6) and the shaping and cooling device separates the sheets and then draws the sheets.
Preferably, the nucleating agent is talc.
Preferably, the foaming agent is one of butane, freon, carbon dioxide and dimethyl ether.
The invention achieves the following beneficial effects:
the foamed material is mainly used for silencing mats of SPC floors and other floors, and mainly has the following characteristics:
1. excellent resistance to temperature impact toughness.
2. Excellent material hardness (50-60) shore hardness.
3. Closed cell structure, fine and uniform foam pores, high elasticity and smooth surface.
4. Excellent environmental flexibility and no brittleness after long-term storage.
5. All the used materials meet the relevant FDA standard, and the environment is protected, and 100 percent of the materials can be recycled.
6. Waterproof, silence resilience, antibiotic mould proof function in addition.
7. Excellent surface adhesion, can be adhered to any floor, and can be directly thermally adhered to films such as PE, PS, PP and the like.
8. The protective lock catch with the largest effect of bonding the SPC floor has light weight and high hardness, and is one of the most perfect materials for the SPC floor to be paved at present.
9. The cost performance is saved by about 30 percent compared with other mute cushions.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1:
a foaming material is produced by the following process:
(1) stirring and mixing the materials
Preparing materials according to the following mixture ratio (mass ratio):
impact resistant polystyrene 10%
Polyphenylene ether 60%
20 percent of low-density polyethylene
Ethylene-vinyl acetate copolymer 15%
Silicon dioxide 5%
Putting the materials of the components into a stirring system for stirring; the stirring speed is 60 r/min;
(2) first extrusion molding
The material enters a first screw extruder to be melted and pushed; injecting a foaming agent through a metering pump before a screw mixing zone in the material extrusion process so as to fully mix the material, the talcum powder and the butane, wherein the proportion of the material, the talcum powder and the butane is 90%, 2% and 8%, and the proportion is the mass percentage;
controlling the temperature of melting and mixing within 170-220 ℃, and gradually increasing;
(4) second extrusion molding
The material mixed in the step (2) is forced to extrude in the screw cylinder to pass through the filtering system and the connecting system to enter a second screw extruder, and the second screw extruder cools the screw cylinder or the screw through a water circulation system or an oil circulation system so as to achieve the purpose of low-temperature plasticization of the material in the screw cylinder; the cooling temperature of the material in the screw cylinder of the second screw extruder is gradually reduced, and the cooling plastification is gradually reduced from 150-95 ℃; the material is cooled and plasticized by a second screw extruder and then enters a circular die orifice through a compression runner for extrusion;
(5) solidifying the foam hole structure of the extruded foaming material by an internal and external air device and a shaping and cooling device;
(6) and the shaping and cooling device separates the sheets and then draws the sheets.
The specification of the formed product is as follows: 1. 0.8-4 mm coiled material (thickness)
2. 100-1500mm (width)
3. 100-400m (length)
Example 2:
a foaming material is produced by the following process:
(1) stirring and mixing the materials
Preparing materials according to the following mixture ratio (mass ratio):
impact resistant polystyrene 30%
Polyphenylene ether 40%
10 percent of low-density polyethylene
Ethylene-vinyl acetate copolymer 10%
Silicon dioxide 10%
Putting the materials of the components into a stirring system for stirring; the stirring speed is 60 r/min;
(2) first extrusion molding
The material enters a first screw extruder to be melted and pushed; injecting a foaming agent through a metering pump before a screw mixing zone in the material extrusion process so as to fully mix the material, the talcum powder and the freon, wherein the proportions of the material, the talcum powder and the freon are 94.5 percent, 0.5 percent and 5 percent, and the proportions are mass percent;
controlling the temperature of melting and mixing within 170-220 ℃, and gradually increasing;
(4) second extrusion molding
The material mixed in the step (2) is forced to extrude in the screw cylinder to pass through the filtering system and the connecting system to enter a second screw extruder, and the second screw extruder cools the screw cylinder or the screw through a water circulation system or an oil circulation system so as to achieve the purpose of low-temperature plasticization of the material in the screw cylinder; the cooling temperature of the material in the screw cylinder of the second screw extruder is gradually reduced, and the cooling plastification is gradually reduced from 150-95 ℃; the material is cooled and plasticized by a second screw extruder and then enters a circular die orifice through a compression runner for extrusion;
(5) solidifying the foam hole structure of the extruded foaming material by an internal and external air device and a shaping and cooling device;
(6) and the shaping and cooling device separates the sheets and then draws the sheets.
The specification of the formed product is as follows: 1. 0.8-4 mm coiled material (thickness)
2. 100-1500mm (width)
3. 100-400m (length)
Example 3:
a foaming material is produced by the following process:
(1) stirring and mixing the materials
Preparing materials according to the following mixture ratio (mass ratio):
impact resistant polystyrene 30%
35 percent of polyphenyl ether
Low density polyethylene 15%
Ethylene-vinyl acetate copolymer 15%
Silicon dioxide 5%
Putting the materials of the components into a stirring system for stirring; the stirring speed is 60 r/min;
(2) first extrusion molding
The material enters a first screw extruder to be melted and pushed; injecting a foaming agent through a metering pump before a screw mixing zone in the material extrusion process so as to fully mix the material, the talcum powder and the dimethyl ether, wherein the proportion of the material, the talcum powder and the dimethyl ether is 96 percent, 1 percent and 3 percent, and the proportion is the mass percentage;
controlling the temperature of melting and mixing within 170-220 ℃, and gradually increasing;
(4) second extrusion molding
The material mixed in the step (2) is forced to extrude in the screw cylinder to pass through the filtering system and the connecting system to enter a second screw extruder, and the second screw extruder cools the screw cylinder or the screw through a water circulation system or an oil circulation system so as to achieve the purpose of low-temperature plasticization of the material in the screw cylinder; the cooling temperature of the material in the screw cylinder of the second screw extruder is gradually reduced, and the cooling plastification is gradually reduced from 150-95 ℃; the material is cooled and plasticized by a second screw extruder and then enters a circular die orifice through a compression runner for extrusion;
(5) solidifying the foam hole structure of the extruded foaming material by an internal and external air device and a shaping and cooling device;
(6) and the shaping and cooling device separates the sheets and then draws the sheets.
The specification of the formed product is as follows: 1. 0.8-4 mm coiled material (thickness)
2. 100-1500mm (width)
3. 100-.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The novel foaming material is characterized by comprising the following components:
10 to 50 percent of polystyrene
20-60% of polyphenyl ether
5-20% of polyethylene
5-20% of ethylene-vinyl acetate copolymer
Balance of inorganic materials
The above percentages are mass percentages.
2. The novel foamed material according to claim 1, wherein the polystyrene is high impact polystyrene.
3. The novel foam material as claimed in claim 1, wherein the polyethylene is low density polyethylene.
4. The novel foam according to claim 1, wherein the inorganic material is silica.
5. The production process of the novel foaming material is characterized by comprising the following steps of:
(1) stirring and mixing the materials
Placing the materials of the composition of claim 1 into a stirring system for stirring; the stirring speed is 60-120 rpm;
(2) first extrusion molding
The material enters a first screw extruder to be melted and pushed; injecting a foaming agent through a metering pump before a screw mixing zone in the material extrusion process so as to fully mix the material, the foaming agent and the nucleating agent, wherein the ratio of the material, the nucleating agent and the foaming agent is 90-96%, 0.2-2% and 3-8%, and the ratio is mass percent;
controlling the temperature of melting and mixing within 170-220 ℃, and gradually increasing;
(4) second extrusion molding
The material mixed in the step (2) is forced to extrude in the screw cylinder to pass through the filtering system and the connecting system to enter a second screw extruder, and the second screw extruder cools the screw cylinder or the screw through a water circulation system or an oil circulation system so as to achieve the purpose of low-temperature plasticization of the material in the screw cylinder; the cooling temperature of the material in the screw cylinder of the second screw extruder is gradually reduced, and the cooling plastification is gradually reduced from 150-95 ℃; the material is cooled and plasticized by a second screw extruder and then enters a circular die orifice through a compression runner for extrusion;
(5) solidifying the foam hole structure of the extruded foaming material by an internal and external air device and a shaping and cooling device;
(6) and the shaping and cooling device separates the sheets and then draws the sheets.
6. The process for producing a novel foam according to claim 5, wherein the nucleating agent is talc.
7. The process for producing a novel foam material according to claim 5, wherein the foaming agent is one of butane, freon, carbon dioxide and dimethyl ether.
CN201911335105.1A 2019-12-23 2019-12-23 Novel foaming material and production process thereof Pending CN110894350A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112500649A (en) * 2020-10-08 2021-03-16 湖南驰方包装有限公司 Novel polymer capable of being used for extrusion foaming

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102070853A (en) * 2011-01-05 2011-05-25 广州市波斯塑胶颜料有限公司 Foamed polystyrene curtain plate sheet and manufacturing method thereof
CN104086883A (en) * 2014-07-03 2014-10-08 合肥杰事杰新材料股份有限公司 Mobile phone noise reduction cover material and preparation method thereof
CN107200929A (en) * 2016-03-16 2017-09-26 青岛科技大学 A kind of propylene copolymer microcellular foam material and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102070853A (en) * 2011-01-05 2011-05-25 广州市波斯塑胶颜料有限公司 Foamed polystyrene curtain plate sheet and manufacturing method thereof
CN104086883A (en) * 2014-07-03 2014-10-08 合肥杰事杰新材料股份有限公司 Mobile phone noise reduction cover material and preparation method thereof
CN107200929A (en) * 2016-03-16 2017-09-26 青岛科技大学 A kind of propylene copolymer microcellular foam material and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112500649A (en) * 2020-10-08 2021-03-16 湖南驰方包装有限公司 Novel polymer capable of being used for extrusion foaming

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