CN116656029A - PE (polyethylene) isolation preservative film for radial tires and preparation method thereof - Google Patents
PE (polyethylene) isolation preservative film for radial tires and preparation method thereof Download PDFInfo
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- CN116656029A CN116656029A CN202310718545.5A CN202310718545A CN116656029A CN 116656029 A CN116656029 A CN 116656029A CN 202310718545 A CN202310718545 A CN 202310718545A CN 116656029 A CN116656029 A CN 116656029A
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- -1 polyethylene Polymers 0.000 title claims abstract description 146
- 239000003755 preservative agent Substances 0.000 title claims abstract description 92
- 230000002335 preservative effect Effects 0.000 title claims abstract description 92
- 238000002955 isolation Methods 0.000 title claims abstract description 78
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 75
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title abstract description 42
- 239000004743 Polypropylene Substances 0.000 claims abstract description 97
- 229920001155 polypropylene Polymers 0.000 claims abstract description 97
- 239000002245 particle Substances 0.000 claims abstract description 85
- 239000000945 filler Substances 0.000 claims abstract description 43
- 239000002657 fibrous material Substances 0.000 claims abstract description 36
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 239000002270 dispersing agent Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 238000005303 weighing Methods 0.000 claims abstract description 12
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 51
- 239000003365 glass fiber Substances 0.000 claims description 50
- 229920000728 polyester Polymers 0.000 claims description 49
- 229920000178 Acrylic resin Polymers 0.000 claims description 20
- 239000004925 Acrylic resin Substances 0.000 claims description 20
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 19
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 19
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 15
- 239000007822 coupling agent Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 23
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000010030 laminating Methods 0.000 abstract description 6
- 229920000098 polyolefin Polymers 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 description 14
- 239000004033 plastic Substances 0.000 description 14
- 239000001856 Ethyl cellulose Substances 0.000 description 13
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 13
- 229920001249 ethyl cellulose Polymers 0.000 description 13
- 235000019325 ethyl cellulose Nutrition 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 12
- 238000001035 drying Methods 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 238000005507 spraying Methods 0.000 description 8
- 238000002844 melting Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 239000008187 granular material Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- HCILJBJJZALOAL-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)-n'-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyl]propanehydrazide Chemical group CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 HCILJBJJZALOAL-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000008202 granule composition Substances 0.000 description 1
- 238000009474 hot melt extrusion Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—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
- C08J2451/06—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 homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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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
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Tyre Moulding (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application relates to the field of polyolefin materials, and particularly discloses a PE (polyethylene) isolation preservative film for a radial tire and a preparation method thereof; the PE isolation preservative film for the radial tire is prepared from the following raw materials in parts by weight: 85-110 parts of polyethylene, 5-15 parts of compatilizer, 5-12 parts of polypropylene wax modified fiber material, 5-15 parts of filler particles, 1-2 parts of dispersing agent and 0.5-1 part of antioxidant; the preparation method comprises the following steps: s1, weighing polypropylene wax modified fiber materials and filler particles, and uniformly mixing and stirring to obtain a primary mixed material; s2, weighing polyethylene and a compatilizer, uniformly mixing and stirring, and then adding the primary mixed material, a dispersing agent and an antioxidant, uniformly mixing and stirring to prepare a mixture; s3, extruding and molding the mixture to obtain a finished product; the isolation preservative film has the advantages of good laminating effect, high tensile strength and reusability.
Description
Technical Field
The application relates to the field of polyolefin materials, in particular to a PE (polyethylene) isolation preservative film for a radial tire and a preparation method thereof.
Background
Polyethylene, PE for short, is a thermoplastic resin prepared by ethylene polymerization, and has the advantages of small water absorption, excellent electrical insulation performance, low temperature resistance and corrosion resistance.
In order to avoid the problems of deformation, aging and the like of the rubber film, an isolating film is often attached to the surface of the rubber film, and the isolating film is utilized to have good oxygen blocking effect to prevent the rubber film sensitive to oxygen from aging, so that the quality of the rubber film is ensured.
At present, a PE film is often selected as an isolating film to be attached to the surface of a film, and the film quality is ensured by utilizing better oxygen resistance; however, the tensile strength of the PE film is not good enough and is easy to stretch, when the isolating film is peeled off from the surface of the film, the isolating film is easy to have problems of stretching deformation, wrinkling and the like, and the repeated use of the isolating film is easy to be affected due to the deformation and wrinkling.
Therefore, how to prepare a new isolation preservative film has the advantages of good laminating effect, high tensile strength and reusability, and is a problem to be solved.
Disclosure of Invention
In order to prepare a novel isolation preservative film, the PE isolation preservative film has the advantages of good laminating effect, high tensile strength and reusability, and the PE isolation preservative film for the radial tire and the preparation method thereof are provided.
In a first aspect, the application provides a PE (polyethylene) isolation preservative film for a radial tire, which adopts the following technical scheme:
the PE isolation preservative film for the radial tire is prepared from the following raw materials in parts by weight: 85-110 parts of polyethylene, 5-15 parts of compatilizer, 5-12 parts of polypropylene wax modified fiber material, 5-15 parts of filler particles, 1-2 parts of dispersing agent and 0.5-1 part of antioxidant.
By adopting the technical scheme, the polyethylene, the compatilizer, the polypropylene wax modified fiber material and the filler particles are matched, and the bonding compatibility of the polyethylene, the polypropylene wax modified fiber material and the filler particles is improved by utilizing the compatible effect of the compatilizer, so that the isolation preservative film is conveniently attached to the film; the advantage of low viscosity of the polypropylene wax is matched, so that the separation preservative film is convenient to tear off from the surface of the film; and the high strength of fiber materials and filler particles in the polypropylene wax modified fiber materials is matched, so that the tensile strength of the isolation preservative film is improved, the torn isolation preservative film is not easy to produce problems of stretching deformation, wrinkling and the like, and the isolation preservative film can be reused after being torn off.
Preferably, the polypropylene wax modified fiber material is prepared from polypropylene wax modified polyester fiber and polypropylene wax modified glass fiber in a mass ratio of 1:0.5-1.2.
Through adopting above-mentioned technical scheme, polypropylene wax is to polyester fiber, glass fiber's cladding, utilizes polypropylene wax's lubricity, low viscosity, makes the isolation plastic wrap tear from the film surface easily to make the isolation plastic wrap be difficult for remaining on the film surface, even keep apart plastic wrap used repeatedly or keep apart plastic wrap and cover the film after the film is piled up in a roll, also can guarantee to keep apart plastic wrap and tear from the film surface easily, be difficult for making the isolation plastic wrap part remain on the film surface, influence the subsequent processingquality of film.
The polypropylene wax modified polyester fiber and the polypropylene wax modified glass fiber are matched, and the good crease resistance of the polyester fiber and the high strength of the glass fiber are utilized, so that the isolation preservative film has good crease resistance effect and high tensile strength, and the problems of stretching deformation and wrinkling are not easy to occur when the isolation preservative film is torn off from a film, so that the isolation preservative film can be repeatedly utilized and has long service life.
Preferably, the polypropylene wax modified polyester fiber is prepared from polyester fiber yarn, acrylic resin melt and polypropylene wax in a mass ratio of 1:0.2-0.38:0.2-0.4.
By adopting the technical scheme, the polyester fiber, the acrylic resin melt and the polypropylene wax are matched, the melting point of the acrylic resin is smaller than that of the polypropylene wax, the viscosity of the acrylic resin melt is utilized to facilitate the adhesion of the polypropylene wax on the surface of the polyester fiber, and in the process of polyethylene hot-melt extrusion, the polypropylene wax is enabled to exert the effects of lubrication and low viscosity, so that the PE isolation preservative film is easy to tear from the surface of the film, and even if the isolation preservative film is stacked after wrapping the film or the viscosity exists on the surface of the film, the preservative film is easy to tear from the surface of the film; and the tensile strength of the isolation preservative film can be improved, and the phenomena of stretching deformation and wrinkling of the isolation preservative film in the tearing process are avoided as much as possible, so that the isolation preservative film can be reused.
The polyester fiber filaments, the acrylic resin melt, the polyethylene and the filler particles are matched, and the bonding effect of the polyester fiber filaments and the polyethylene is improved by utilizing the acrylic resin melt, so that the tensile strength of the isolation preservative film is further improved.
Preferably, the polypropylene wax modified glass fiber is prepared by sequentially bonding TPU melt and polypropylene wax after glass fiber yarns are treated by an aminosilane coupling agent.
By adopting the technical scheme, the glass fiber, the aminosilane coupling agent and the TPU melt are matched, and the aminosilane coupling agent is conveniently bonded on the surface of the glass fiber by utilizing a certain amount of hydroxyl contained on the surface of the glass fiber; amino groups in the amino silane coupling agent on the surface of the glass fiber and TPU on the surface of the glass fiber are matched with acrylic resin and polyethylene on the surface of the polyester fiber, so that the bonding effect of the polyester fiber and the glass fiber is improved, the bonding stability of fiber materials and the polyethylene is improved, the density of the internal structure of the isolation preservative film is improved, and meanwhile, the tensile strength of the isolation preservative film is improved.
Preferably, the aminosilane coupling agent is a silane coupling agent KH-792.
By adopting the technical scheme, the silane coupling agent KH-792 not only has better dispersing effect, but also contains amino, so that the bonding effect of TPU and glass fiber can be improved, and the bonding effect of glass fiber, polyethylene and other raw materials can be improved, thereby improving the tensile strength of the film.
Preferably, the filler particles consist of TPU particles and POE particles in a mass ratio of 1:1-3.
By adopting the technical scheme, the filler particles and the polypropylene wax modified fiber material are matched, and the high rebound resilience of TPU particles and POE particles in the filler particles is matched with the strength of polyester fibers and glass fibers in the polypropylene wax modified fiber material, so that the tensile strength and the wrinkle resistance of the isolation preservative film are further improved.
TPU particles and POE particles in filler particles are matched with acrylic resin on the surface of polyester fiber and an aminosilane coupling agent on the surface of glass fiber, so that the interfacial adhesion of TPU and POE can be improved, and amino groups in the aminosilane coupling agent are crosslinked with carboxyl groups in acrylic resin and carbamate in TPU, so that the adhesion effect among polypropylene wax modified polyester fiber, polypropylene wax modified glass fiber, filler particles and polyethylene is further improved, the tensile strength of the isolation preservative film is improved, and the isolation preservative film is not easy to stretch, deform and wrinkle after being torn off.
Preferably, the TPU particles consist of TPU and silicon nitride in a mass ratio of 1:0.2-0.5; the POE particles consist of POE and silicon nitride in a mass ratio of 1:0.1-0.5.
Through adopting above-mentioned technical scheme, TPU granule and POE granule all load silicon nitride, utilize the bonding effect of TPU granule and POE granule and other raw materials, improve the bonding stability and the compatibility of silicon nitride in keeping apart the plastic wrap, have higher mechanical strength when making keeping apart the plastic wrap have certain toughness to improve tensile strength and the tear resistance of keeping apart the plastic wrap, with the life of extension keeping apart the plastic wrap, and make keeping apart the plastic wrap can used repeatedly.
Preferably, the compatibilizer is maleic anhydride grafted polyethylene.
By adopting the technical scheme, the maleic anhydride grafted polyethylene can further improve the bonding compatibility among the raw materials, thereby improving the tensile strength of the isolation preservative film.
Preferably, the dispersant is polyethylene wax.
Through adopting above-mentioned technical scheme, the fusing point of polyethylene wax is less than polypropylene wax, and polyethylene wax is as the dispersant, when guaranteeing that the raw materials dispersion is even, then polypropylene wax hot melt plays the effect that reduces the surface viscosity, and polyethylene wax cooperation polypropylene wax utilizes its inside and outside lubricated effect, guarantees to keep apart the plastic wrap and can laminate in the film surface better, is convenient for keep apart the plastic wrap and tear from the film surface.
In a second aspect, the application provides a preparation method of PE (polyethylene) isolation preservative film for radial tires, which adopts the following technical scheme:
the preparation method of the PE isolation preservative film for the radial tire comprises the following steps:
s1, weighing polypropylene wax modified fiber materials and filler particles, and uniformly mixing and stirring to obtain a primary mixed material;
s2, weighing polyethylene and a compatilizer, uniformly mixing and stirring, and then adding the primary mixed material, a dispersing agent and an antioxidant, uniformly mixing and stirring to prepare a mixture;
and S3, extruding and molding the mixture to obtain a finished product.
Through adopting above-mentioned technical scheme, earlier with polypropylene wax modified fiber material and filler granule mixture for fiber material and filler evenly mix and contact, then mix with other raw materials such as polyethylene, compatilizer, make the finished product of melt extrusion be convenient for laminate on the film surface, be convenient for tear from the film surface moreover, tear simultaneously after difficult tensile deformation and fold that produces simultaneously, make keep apart the plastic wrap can reuse.
In summary, the application has the following beneficial effects:
1. polyethylene, compatilizer, polypropylene wax modified fiber material and filler particles are matched, and the compatibility of the compatilizer is utilized to improve the bonding compatibility of the polyethylene, the polypropylene wax modified fiber material and the filler particles, so that the isolation preservative film is conveniently attached to the film; the advantage of low viscosity of the polypropylene wax is matched, so that the separation preservative film is convenient to tear off from the surface of the film; and the high strength of fiber materials and filler particles in the polypropylene wax modified fiber materials is matched, so that the tensile strength of the isolation preservative film is improved, the torn isolation preservative film is not easy to produce problems of stretching deformation, wrinkling and the like, and the isolation preservative film can be reused after being torn off.
2. The polypropylene wax modified glass fiber and the polypropylene wax modified polyester fiber are matched, and amino in the amino silane coupling agent on the surface of the glass fiber is matched with the acrylic resin and the polyethylene on the surface of the polyester fiber, so that the bonding effect of the polyester fiber and the glass fiber is improved, the bonding stability of fiber materials and the polyethylene is improved, the compactness of the internal structure of the isolation preservative film is improved, and meanwhile, the tensile strength of the isolation preservative film is improved.
3. The polypropylene wax on the surfaces of the polypropylene wax modified glass fiber and the polypropylene wax modified polyester fiber can flow easily after hot melting, and the amino silane coupling agent on the surfaces of the glass fiber and the acrylic resin on the surfaces of the polyester fiber can exert the bonding effect, so that the bonding effect of the fiber material and the polyethylene is improved, and the finished product isolation preservative film has better tensile strength.
Detailed Description
The present application will be described in further detail with reference to examples.
Preparation example of Polypropylene wax modified polyester fiber
Preparation example 1: the polypropylene wax modified polyester fiber is prepared by the following method:
weighing thermoplastic acrylic resin, heating to 110 ℃, and completely hot-melting to obtain an acrylic resin melt;
uniformly spraying 0.28kg of acrylic resin liquid on the surface of 1kg of polyester fiber yarn, uniformly spraying 0.3kg of polypropylene wax, and drying and dispersing until the polyester fiber yarn is not agglomerated and adhered to each other to prepare a finished polypropylene wax modified polyester fiber; the length of the polyester fiber filament is 0.2mm, and the diameter is 10-20nm; the polypropylene wax was sieved through a 100 mesh sieve.
Preparation example 2: the present preparation example differs from preparation example 1 in that:
uniformly spraying 0.2kg of acrylic resin liquid on the surface of 1kg of polyester fiber yarn, uniformly spraying 0.2kg of polypropylene wax, and drying and dispersing until the polyester fiber yarn is not agglomerated and adhered to each other to obtain the finished polypropylene wax modified polyester fiber.
Preparation example 3: the present preparation example differs from preparation example 1 in that:
uniformly spraying 0.38kg of acrylic resin liquid on the surface of 1kg of polyester fiber yarn, uniformly spraying 0.4kg of polypropylene wax, and drying and dispersing until the polyester fiber yarn is not agglomerated and adhered to each other to obtain the finished polypropylene wax modified polyester fiber.
Preparation example of Polypropylene wax modified glass fiber
The aminosilane coupling agent in the following raw materials is purchased from Shandong Xin Runjin chemical industry Co., ltd; TPU is purchased from Kitag New Material (Shenzhen Co., ltd; other raw materials and equipment are all commonly and commercially available.
Preparation example 4: the polypropylene wax modified glass fiber is prepared by the following method:
weighing 1kg of glass fiber, soaking and stirring in 5kg of aminosilane coupling agent KH-792, stirring for 30min at a stirring speed of 350r/min, taking out the glass fiber, and drying to obtain modified glass fiber; the length of the glass fiber is 0.1mm, and the diameter is 10-20nm;
heating the TPU to 130 ℃ for complete hot melting to obtain TPU melt;
uniformly spraying 0.3kg of TPU melt on the surface of the modified glass fiber, uniformly spraying 0.3kg of polypropylene wax, and drying and dispersing until the modified glass fiber is not agglomerated and adhered to each other to obtain a finished product; the polypropylene wax was sieved through a 150 mesh sieve.
Preparation of filler particles
Preparation example 5: the filler particles are prepared by the following method:
weighing TPU, heating to 130 ℃ and completely hot-melting to obtain TPU melt;
adding 4kg of silicon nitride into 10kg of TPU melt, dispersing and stirring uniformly, and drying and crushing to obtain TPU particles; the particle size of the silicon nitride is 80nm, and TPU particles are sieved by a 200-mesh sieve;
weighing POE, heating to 130 ℃ and completely hot-melting to obtain POE melt;
3kg of silicon nitride is added into 10kg of POE melt, and after being dispersed and stirred uniformly, POE particles are prepared through drying and crushing; the particle size of the silicon nitride is 80nm, and POE particles are sieved by a 200-mesh sieve;
1kg of TPU particles and 2kg of POE particles are weighed and mixed to prepare filler particles.
Preparation example 6: the present preparation example differs from preparation example 5 in that:
adding 2kg of silicon nitride into 10kg of TPU melt, dispersing and stirring uniformly, and drying and crushing to obtain TPU particles; adding 1kg of silicon nitride into 10kg of POE melt, dispersing and stirring uniformly, drying and crushing to obtain POE particles; 1kg of TPU particles and 1kg of POE particles are weighed and mixed to prepare filler particles.
Preparation example 7: the present preparation example differs from preparation example 5 in that:
adding 5kg of silicon nitride into 10kg of TPU melt, dispersing and stirring uniformly, and drying and crushing to obtain TPU particles; adding 5kg of silicon nitride into 10kg of POE melt, dispersing and stirring uniformly, drying and crushing to obtain POE particles; 1kg of TPU particles and 3kg of POE particles are weighed and mixed to prepare filler particles.
Examples
Example 1: PE isolation preservative film for radial tires:
100kg of polyethylene, 10kg of compatilizer, 8kg of polypropylene wax modified fiber material, 10kg of filler particles, 1.5kg of dispersing agent and 0.8kg of antioxidant; the polyethylene is low-density polyethylene, the compatilizer is maleic anhydride grafted polyethylene, and the polypropylene wax modified fiber material consists of 4kg of the polypropylene wax modified polyester fiber prepared in preparation example 1 and 4kg of the polypropylene wax modified glass fiber prepared in preparation example 4; the filler particles prepared in preparation example 5 are selected as filler particles; the dispersing agent is polyethylene wax; the antioxidant is antioxidant 1024;
the preparation method comprises the following steps:
s1, weighing polypropylene wax modified fiber materials and high-resilience filler, and uniformly mixing and stirring to obtain a primary mixed material;
s2, weighing polyethylene and a compatilizer, uniformly mixing and stirring, and then adding the primary mixed material, a dispersing agent and an antioxidant, uniformly mixing and stirring to prepare a mixture;
s3, placing the mixture into a double-screw extruder, and extruding and molding at 180 ℃ to obtain a finished product, wherein the thickness of the finished product is 0.5mm.
Example 2: this embodiment differs from embodiment 1 in that:
85kg of polyethylene, 5kg of compatilizer, 5kg of polypropylene wax modified fiber material, 5kg of filler particles, 1kg of dispersing agent and 0.5kg of antioxidant; the polyethylene is low-density polyethylene, the compatilizer is maleic anhydride grafted polyethylene, and the polypropylene wax modified fiber material consists of 3.125kg of polypropylene wax modified polyester fiber prepared in preparation example 2 and 1.875kg of polypropylene wax modified glass fiber prepared in preparation example 4; the filler particles prepared in preparation example 6 were used as filler particles.
Example 3: this embodiment differs from embodiment 1 in that:
110kg of polyethylene, 15kg of compatilizer, 12kg of polypropylene wax modified fiber material, 15kg of filler particles, 2kg of dispersing agent and 1kg of antioxidant; the polyethylene is low-density polyethylene, the compatilizer is maleic anhydride grafted polyethylene, and the polypropylene wax modified fiber material consists of 5kg of the polypropylene wax modified polyester fiber prepared in preparation example 3 and 7kg of the polypropylene wax modified glass fiber prepared in preparation example 4; the filler particles prepared in preparation example 7 were used as filler particles.
Example 4: this embodiment differs from embodiment 1 in that:
the polypropylene wax modified fiber material replaces polypropylene wax modified glass fiber with polypropylene wax modified polyester fiber with the same quality.
Example 5: this embodiment differs from embodiment 1 in that:
in the preparation process of the polypropylene wax modified polyester fiber, the acrylic resin melt is replaced by an ethyl cellulose solution with the same mass, wherein the ethyl cellulose solution is an ethyl cellulose ethanol solution with the mass fraction of 1%, and the ethanol is absolute ethanol with the mass fraction of 99%.
Example 6: this embodiment differs from embodiment 1 in that:
the polypropylene wax modified glass fiber is not treated by an aminosilane coupling agent in the preparation process.
Example 7: this embodiment differs from embodiment 1 in that:
in the preparation process of the polypropylene wax modified glass fiber, the TPU melt is replaced by an ethyl cellulose solution with the same mass, wherein the ethyl cellulose solution is an ethyl cellulose ethanol solution with the mass fraction of 1%, and the ethanol is absolute ethanol with the mass fraction of 99%.
Example 8: this embodiment differs from embodiment 1 in that:
the POE particles are replaced by TPU particles with the same quality in the filler particles.
Example 9: this embodiment differs from embodiment 1 in that:
the TPU particles in the filler particles are commercially available TPU particles, namely, silicon nitride is not added in the TPU particles; the POE particles are commercially available POE particles, i.e. no silicon nitride is added inside the POE particles.
Comparative example
Comparative example 1: this comparative example differs from example 1 in that:
the polypropylene wax modified fiber material and filler particles are not added in the raw materials.
Comparative example 2: this comparative example differs from example 1 in that:
the raw materials adopt commercial fibers to replace polypropylene wax modified fiber materials, wherein the commercial polyester fibers with the same quality are used for replacing polypropylene wax modified polyester fibers, the glass fibers with the same quality are used for replacing polypropylene wax modified glass fibers, the length of the polyester fibers is 0.2mm, and the length of the glass fibers is 0.1mm.
Performance test
1. Tensile strength detection
The preparation methods of examples 1-9 and comparative examples 1-2 are adopted to prepare finished isolation preservative films respectively, the tensile strength is detected by referring to a GB/T13022-1991 plastic film tensile test, data is recorded, and the tensile strength is the tensile strength; laminating the isolation preservative film on the surface of a film, standing for 2 hours, tearing off, laminating the isolation preservative film on the surface of the film, standing for 2 hours, tearing off, repeating the operation for 20 times, and recording the tensile strength data again to obtain the tensile strength.
2. Fold detection
The preparation methods of the examples 1-3 and the comparative example 2 are adopted to prepare finished isolating preservative films respectively, after the isolating preservative films are attached to the surfaces of films, the films are rolled, 6 rolled film stacks are accumulated into structures from bottom to top of 3, 2 and 1, 6 films are in a group, 4 groups correspond to the isolating preservative films prepared in the examples 1-3 and the comparative example 2 respectively, after the 6 rolled film stacks are placed for 1d, the isolating preservative films on the surfaces of the films are torn off, the fold areas of the isolating preservative films on the surfaces of the films positioned in the middle of a row of 3 films at the bottom are observed, and the fold areas on the unit area are recorded.
3. Lamination effect detection
The preparation methods of the embodiments 1-3 are respectively adopted to prepare finished isolation preservative films, after the isolation preservative films are attached to the film surfaces, whether the film surfaces have empty drum problems is observed to evaluate the attaching effect, and the number of empty drums on the film with the size of 1 square meter is recorded; no hollowing, representing good adhesion.
Table 1 performance test table
As can be seen by combining the embodiments 1-3 and combining the table 1, the isolated preservative film prepared by the application has higher tensile strength, even after multiple uses, the isolated preservative film still has higher tensile strength, and basically has no wrinkles and hollows, so that the isolated preservative film has the advantages of good laminating effect, high tensile strength and repeated use.
As can be seen from the combination of examples 1 and examples 4 to 9 and the combination of table 1, in example 4, the polypropylene wax modified fiber material has the polypropylene wax modified glass fiber replaced by the polypropylene wax modified polyester fiber with the same quality, compared with example 1, the tensile strength of the insulation preservative film prepared in example 4 is smaller than that of example 1, and the difference between the insulation preservative film and the initial tensile strength after repeated use is larger than that of example 1; the polypropylene wax modified polyester fiber and the polypropylene wax modified glass fiber are matched, so that the tensile strength of the finished product isolation preservative film can be improved.
Example 5 in polypropylene wax modified polyester fiber, the acrylic resin melt is replaced by ethyl cellulose solution with the same quality, compared with example 1, the tensile strength of the isolation preservative film prepared in example 5 is smaller than that of example 1, and the difference between the isolation preservative film and the initial tensile strength after repeated use is larger than that of example 1; it is explained that the ethyl cellulose solution can bond the polypropylene wax on the surface of the polyester fiber, but the ethyl cellulose has a higher melting point, so that the ethyl cellulose cannot be melted in the extrusion molding process, and the bonding compatibility of the polyester fiber, the glass fiber and the polyethylene cannot be improved, thereby influencing the tensile strength of the finished product isolation preservative film.
Compared with example 1, the tensile strength of the isolation preservative film prepared in example 6 is smaller than that of example 1, and the difference between the isolation preservative film and the initial tensile strength after repeated use is larger than that of example 1; the glass fiber is treated by the aminosilane coupling agent, so that the bonding compatibility of the glass fiber, the polyester fiber and the polyethylene can be improved, and the tensile strength of the isolation preservative film is improved.
In the example 7, the polypropylene wax modified glass fiber is replaced by the ethyl cellulose solution with the same quality to replace TPU melt, compared with the example 1, the tensile strength of the isolation preservative film prepared in the example 7 is smaller than that of the example 1, and the difference between the isolation preservative film and the initial tensile strength after the isolation preservative film is repeatedly used is larger than that corresponding to the example 1; the ethyl cellulose solution has a bonding effect and can bond the polypropylene wax on the surface of the glass fiber, but the ethyl cellulose has no toughness of TPU, and the bonding compatibility of raw materials such as the glass fiber and polyethylene cannot be improved, so that the tensile strength of the finished product isolation preservative film is influenced.
In the embodiment 8, the POE particles are replaced by TPU particles with the same mass, compared with the embodiment 1, the tensile strength of the insulation preservative film prepared in the embodiment 8 is smaller than that of the embodiment 1, and the difference between the insulation preservative film and the initial tensile strength after repeated use is larger than that of the embodiment 1; the TPU particles, the acrylic resin and the POE particles are matched, so that the density of the crosslinked structure of the isolation preservative film can be further improved, and the tensile strength of the isolation preservative film is improved.
In example 9, the TPU particles in the filler particles are commercially available TPU particles, no silicon nitride is added in the TPU particles, the POE particles are commercially available POE particles, and no silicon nitride is added in the POE particles, compared with example 1, the insulation preservative film prepared in example 9 has a tensile strength smaller than that of example 1, and the insulation preservative film has a difference value with the initial tensile strength larger than that of example 1 after repeated use; the method shows that no silicon nitride is added, so that the strength of the filler is low, and the tensile strength of the finished product isolation preservative film is affected.
As can be seen from the combination of example 1 and comparative examples 1-2 and the combination of table 1, the comparative example 1 has no polypropylene wax modified fiber material and filler particles added to the raw material, and compared with example 1, the barrier fresh-keeping film prepared in comparative example 1 has a tensile strength smaller than that of example 1, and the barrier fresh-keeping film has a difference from the initial tensile strength greater than that of example 1 after repeated use; the polypropylene wax modified fiber material and the filler particles are matched, so that the tensile strength of the finished product isolation preservative film can be improved.
Compared with the example 1, the isolation preservative film prepared in the comparative example 2 has the tensile strength smaller than that of the example 1, and the difference between the isolation preservative film and the initial tensile strength after repeated use is larger than that of the example 1, the fold area is larger than that of the example 1, and the hollowness number is larger than that of the example 1; the polypropylene wax is used for treating fibers, so that the attaching effect of the isolation preservative film can be improved, and wrinkles and hollows are reduced.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (10)
1. The PE isolation preservative film for the radial tire is characterized by comprising the following raw materials in parts by weight: 85-110 parts of polyethylene, 5-15 parts of compatilizer, 5-12 parts of polypropylene wax modified fiber material, 5-15 parts of filler particles, 1-2 parts of dispersing agent and 0.5-1 part of antioxidant.
2. The PE (polyethylene) isolation preservative film for radial tires according to claim 1, wherein the PE isolation preservative film is characterized in that: the polypropylene wax modified fiber material is prepared from polypropylene wax modified polyester fiber and polypropylene wax modified glass fiber in a mass ratio of 1:0.6-1.4.
3. The PE isolation preservative film for radial tires according to claim 2, wherein the polypropylene wax modified polyester fiber is prepared from polyester fiber filaments, acrylic resin melt and polypropylene wax in a mass ratio of 1:0.2-0.38:0.2-0.4.
4. The PE isolation preservative film for radial tires according to claim 2, wherein the polypropylene wax modified glass fiber is prepared by sequentially bonding TPU melt and polypropylene wax after glass fiber yarns are treated by an aminosilane coupling agent.
5. The PE isolation preservative film for radial tires according to claim 4, wherein the aminosilane coupling agent is silane coupling agent KH-792.
6. The PE (polyethylene) isolation preservative film for radial tires according to claim 1, wherein the filler particles consist of TPU particles and POE particles in a mass ratio of 1:1-3.
7. The PE isolation preservative film for radial tires according to claim 6, wherein the TPU particles consist of TPU and silicon nitride in a mass ratio of 1:0.2-0.5; the POE particles consist of POE and silicon nitride in a mass ratio of 1:0.1-0.5.
8. The PE (polyethylene) isolation preservative film for radial tires according to claim 1, wherein the compatilizer is maleic anhydride grafted polyethylene.
9. The PE (polyethylene) isolation preservative film for radial tires according to claim 1, wherein the dispersing agent is polyethylene wax.
10. The method for preparing the PE isolation preservative film for the radial tire according to any one of claims 1 to 9, which is characterized by comprising the following steps:
s1, weighing polypropylene wax modified fiber materials and filler particles, and uniformly mixing and stirring to obtain a primary mixed material;
s2, weighing polyethylene and a compatilizer, uniformly mixing and stirring, and then adding the primary mixed material, a dispersing agent and an antioxidant, uniformly mixing and stirring to prepare a mixture;
and S3, extruding and molding the mixture to obtain a finished product.
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