CN113603973A - Injection molding material, impeller and application thereof - Google Patents
Injection molding material, impeller and application thereof Download PDFInfo
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- CN113603973A CN113603973A CN202111064128.0A CN202111064128A CN113603973A CN 113603973 A CN113603973 A CN 113603973A CN 202111064128 A CN202111064128 A CN 202111064128A CN 113603973 A CN113603973 A CN 113603973A
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- impeller
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- molding material
- frame group
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 107
- 239000012778 molding material Substances 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 81
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 46
- 239000011737 fluorine Substances 0.000 claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 238000002156 mixing Methods 0.000 claims abstract description 27
- 238000000465 moulding Methods 0.000 claims abstract description 19
- 229920003023 plastic Polymers 0.000 claims abstract description 19
- 239000004033 plastic Substances 0.000 claims abstract description 19
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 7
- -1 polyethylene terephthalate Polymers 0.000 claims description 39
- KHXKESCWFMPTFT-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2-trifluoroethenoxy)propane Chemical compound FC(F)=C(F)OC(F)(F)C(F)(F)C(F)(F)F KHXKESCWFMPTFT-UHFFFAOYSA-N 0.000 claims description 27
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 27
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 27
- 238000002360 preparation method Methods 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 23
- 239000007924 injection Substances 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 13
- 239000004743 Polypropylene Substances 0.000 claims description 11
- 229920001155 polypropylene Polymers 0.000 claims description 11
- 239000004952 Polyamide Substances 0.000 claims description 10
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 10
- 229920002647 polyamide Polymers 0.000 claims description 10
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 10
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 9
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 8
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 8
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 8
- 239000004417 polycarbonate Substances 0.000 claims description 6
- 229920000515 polycarbonate Polymers 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000003670 easy-to-clean Effects 0.000 claims description 4
- 125000001153 fluoro group Chemical group F* 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000011895 specific detection Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000006119 easy-to-clean coating Substances 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an injection molding material, an impeller and application thereof, and relates to the technical field of range hood equipment. The injection molding material is mainly prepared by mixing thermoplastic resin and a soluble fluorine material, injecting, and then carrying out heat treatment. This application is through adding the soluble fluorine material that has oleophobic hydrophobicity in the material of moulding plastics, carries out heat treatment after the completion of moulding plastics simultaneously, promotes the fluorine composition of low surface energy and educes to injection moulding body surface in the material of moulding plastics, and then has effectively reduced the surface energy of the material of moulding plastics, and the impeller that is made by the above-mentioned material of moulding plastics has lower surface energy, has realized that the greasy dirt is difficult to the effect of attaching to the impeller surface. Meanwhile, a small amount of oil stains attached to the impeller can be thrown away along with the centrifugal force generated by the rotation of the impeller during use.
Description
Technical Field
The invention relates to the technical field of range hood equipment, in particular to an injection molding material, an impeller and application of the injection molding material.
Background
The impeller of traditional cigarette machine generally adopts metalworking to make, and the greasy dirt is adhered to easily to the impeller, leads to the rotational speed of impeller to descend, and cigarette machine energy consumption increases, and the noise increases, and smoking efficiency reduces. At present, the impeller is adopted to spray an easily cleaned coating for removing oil stains, and the steam is used for removing the oil stains and the high-temperature oil stains are removed. However, the cleaning mode of the existing impeller of the cigarette making machine is time-consuming and labor-consuming, and the time and cost of housework are greatly increased.
In view of the above, a high-temperature resistant and easily-cleaned impeller with hydrophobic and oleophobic properties is researched and developed, and the impeller does not need a subsequent process for adding an easily-cleaned coating or an external device for assisting in cleaning oil stains, so that the household labor time and cost for cleaning the existing range hood are effectively reduced, and the impeller becomes necessary and urgent.
Disclosure of Invention
The invention aims to provide an injection molding material and an impeller comprising the same, wherein the injection molding material can isolate fluorine components with low surface energy to the surface of an injection molding body, so that the surface energy of the injection molding material is effectively reduced, and the technical effect of reducing oil stain adhesion is achieved.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
the injection molding material provided by the invention is mainly prepared by mixing thermoplastic resin and a soluble fluorine material, performing injection molding, and then performing heat treatment.
Further, the thermoplastic resin is a plastic material with linear and branched molecular structures.
Further, the thermoplastic resin includes one of polycarbonate, acrylonitrile-butadiene-styrene copolymer, polymethyl methacrylate, polyethylene terephthalate, polyamide, or polypropylene.
Further, the soluble fluorine material is a copolymer of perfluoropropyl perfluorovinyl ether and a fluorine-containing alkane polymer;
or the soluble fluorine material is a copolymer of perfluoropropyl perfluorovinyl ether and a fluorine-containing olefin polymer; preferably a copolymer of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene.
And/or;
the number average molecular weight of the soluble fluorine material is less than 10K.
Further, the injection molding material comprises the following raw materials in percentage by mass:
80-93% of thermoplastic resin, 2-6% of perfluoropropyl perfluorovinyl ether and 5-14% of fluorine-containing alkane polymer or fluorine-containing olefin polymer.
The invention provides an impeller, which comprises a shaft sleeve and an impeller frame group;
the impeller frame group is mainly prepared by mixing and injection molding the injection molding materials and then carrying out heat treatment and integral molding.
Further, the preparation method of the impeller frame group comprises the following steps:
mixing injection molding materials and drying to obtain a material A; performing injection molding by taking the material A as a raw material to obtain an intermediate impeller frame group; and carrying out heat treatment on the intermediate impeller frame group to obtain the impeller frame group.
Further, the stirring speed of the injection molding material mixing material is 15-20 r/m, and the time is 5-10 min;
and/or;
drying the injection molding material after mixing at the temperature of 60-130 ℃ for 2-6 h;
and/or;
the injection molding material temperature setting range is 180-320 ℃, the mold temperature is 30-100 ℃, and the injection pressure is 60-140 MPa.
Further, the temperature of the heat treatment is 70-105 ℃, and the time is 30-60 min.
The invention provides application of the impeller in preparation of an easily cleaned range hood.
Compared with the prior art, the invention has the beneficial effects that:
the injection molding material provided by the invention is mainly prepared by mixing thermoplastic resin and a soluble fluorine material, performing injection molding and then performing heat treatment; wherein the number average molecular weight of the soluble fluorine material is less than 10K. This application is through adding the soluble fluorine material that has oleophobic hydrophobicity in the material of moulding plastics, carries out heat treatment after the completion of moulding plastics simultaneously, promotes the fluorine composition of low surface energy and educes to injection moulding body surface in the material of moulding plastics, and then reduces the surface energy of the material of moulding plastics, reaches the adnexed technological effect of reduction greasy dirt.
The impeller provided by the invention comprises a shaft sleeve and an impeller frame group; the impeller frame group is mainly prepared by mixing and injection molding the injection molding materials and then carrying out heat treatment and integral molding. The impeller has lower surface energy determined by the characteristics of injection molding materials, and the effect that oil stains are difficult to attach to the surface of the impeller is achieved. Meanwhile, a small amount of oil stains attached to the impeller can be thrown away along with the centrifugal force generated by rotation of the impeller during use.
The impeller provided by the invention can be widely applied to the preparation process of the easily cleaned range hood.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of an impeller provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a blade of an impeller provided in embodiment 1 of the present invention;
fig. 3 is an exploded view of an impeller provided in embodiment 1 of the present invention;
fig. 4 is a schematic cross-sectional view of an impeller provided in embodiment 1 of the present invention;
FIG. 5 is a graph showing the segregation of fluorine components after the heat treatment of the casting material according to example 1 of the present invention.
Icon: 1-shaft sleeve; 2-impeller frame group; 21-leaf blade; 22-anterior disc annulus; 23-rear disc; 24-middle disk ring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to one aspect of the present invention, an injection molding material is mainly prepared by mixing a thermoplastic resin and a soluble fluorine material, injection molding, and then heat treating.
The injection molding material provided by the invention is mainly prepared by mixing thermoplastic resin and a soluble fluorine material, performing injection molding and then performing heat treatment. This application is through adding the soluble fluorine material that has oleophobic hydrophobicity in the material of moulding plastics, carries out heat treatment after the completion of moulding plastics simultaneously, promotes the fluorine composition of low surface energy and educes to injection moulding body surface in the material of moulding plastics, and then reduces the surface energy of the material of moulding plastics, reaches the adnexed technological effect of reduction greasy dirt.
In a preferred embodiment of the present invention, the thermoplastic resin is a plastic material having a linear and branched molecular structure.
In a preferred embodiment of the present invention, the thermoplastic resin comprises one of Polycarbonate (PC), Acrylonitrile Butadiene Styrene (ABS), Polymethylmethacrylate (PMMA), polyethylene terephthalate (PET), Polyamide (PA) or polypropylene (PP), Preferably Polypropylene (PP).
In a preferred embodiment, the thermoplastic material has a long-chain linear or branched structure, and the long chains are bonded together by intermolecular force, and when heated, the long chains vibrate rapidly, the intermolecular force is weakened, and polytetrafluoroethylene slides easily in the molecular chains. The polytetrafluoroethylene has low surface energy and poor compatibility with the resin, when the temperature is reduced, the dissolution amount of the polytetrafluoroethylene is reduced, the polytetrafluoroethylene becomes a component incompatible with a plastic main body, and the polytetrafluoroethylene can migrate to the surface of a plastic material along with the reduction of the temperature, so that the content of the polytetrafluoroethylene on the surface is increased.
The thermosetting material has a cross-linked structure, the intermolecular force is strong, when the thermosetting material is heated, the intermolecular vibration is limited, polytetrafluoroethylene is not easy to slide in a molecular chain, the precipitation effect is poor, and the fluorine component is not easy to be isolated to the surface of a formed body.
In a preferred embodiment of the present invention, the soluble fluorine material is a copolymer of perfluoropropyl perfluorovinyl ether and a fluorine-containing alkane polymer;
or the soluble fluorine material is a copolymer of perfluoropropyl perfluorovinyl ether and a fluorine-containing olefin polymer; preferably a copolymer of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene.
And/or; the number average molecular weight of the soluble fluorine material is less than 10K.
In a preferred embodiment of the present invention, the injection molding material comprises the following raw materials by mass:
80-93% of thermoplastic resin, 2-6% of perfluoropropyl perfluorovinyl ether and 5-14% of fluorine-containing alkane polymer or fluorine-containing olefin polymer.
In a preferred embodiment, the mass ratio of the thermoplastic resin to the soluble polytetrafluoroethylene is such that the content of the soluble polytetrafluoroethylene increases, the surface energy of the material decreases, and the easy-to-clean property is enhanced.
According to one aspect of the invention, an impeller comprises a shaft sleeve 1 and an impeller frame group 2;
the impeller frame group 2 is mainly prepared by mixing and injection molding the injection molding materials and then carrying out heat treatment and integral molding.
Preferably, the impeller frame set 2 comprises blades 21, a front disk ring 22 and a rear disk 23; the number of the blades 21 is multiple, and the blades 21 are connected between the front disk ring 22 and the rear disk 23 and are distributed along the circumferential direction of the front disk ring 22 and the circumferential direction of the rear disk 23;
wherein, the blades 21, the front disk ring 22 and the rear disk 23 are mainly prepared by the injection molding materials through mixing, injection molding and heat treatment and integrated molding
The impeller provided by the invention comprises a shaft sleeve 1 and an impeller frame group 2; the impeller frame group 2 comprises blades 21, a front disk ring 22 and a rear disk 23; the number of the blades 21 is multiple, and the blades 21 are connected between the front disk ring 22 and the rear disk 23 and are distributed along the circumferential direction of the front disk ring 22 and the circumferential direction of the rear disk 23; the blades 21, the front disk ring 22 and the rear disk 23 on the impeller are mainly prepared by mixing and injection molding the injection molding materials and then performing heat treatment on the mixture to form the integral molding. The impeller has lower surface energy determined by the characteristics of injection molding materials, and the effect that oil stains are difficult to attach to the surface of the impeller is achieved. Meanwhile, a small amount of oil stains attached to the impeller can be thrown away along with the centrifugal force generated by rotation of the impeller during use.
In a preferred embodiment of the present invention, the impeller frame set 2 further includes a middle disk ring 24, and the middle disk ring 24 is disposed between the front disk ring 22 and the rear disk 23 and forms a cylindrical cavity with the blades 21 to be fixedly connected. The shaft sleeve 1 is sleeved on the central disk ring 24.
In a preferred embodiment of the present invention, the method for preparing the impeller frame set 2 comprises the following steps:
mixing injection molding materials and drying to obtain a material A; performing injection molding by taking the material A as a raw material to obtain an intermediate impeller frame group 2; and carrying out heat treatment on the intermediate impeller frame group 2 to obtain the impeller frame group 2.
As a preferred embodiment, in the preparation method of the impeller frame group 2, firstly, the injection molding material is mixed and dried to obtain a material a; then, performing injection molding by taking the material A as a raw material to obtain an intermediate impeller frame group 2; and then carrying out heat treatment on the impeller after injection molding to promote the fluorine component with low surface energy in the injection molding material to be separated to the surface of the molded body of the impeller frame group 2, so as to obtain the impeller frame group 2. The preparation method has the advantages of simple preparation process and easy operation.
In a preferred embodiment of the invention, the stirring speed of the injection molding material mixing material is 15-20 r/m, and the time is 5-10 min;
drying the injection molding material after mixing at the temperature of 60-130 ℃ for 2-6 h;
as a preferred embodiment, the temperature and time of the drying process are determined according to the drying standards of different materials. Wherein, the Polycarbonate (PC) is dried for 2-4 h at 110-120 ℃; drying acrylonitrile-butadiene-styrene copolymer (ABS) for 2-3 h at 80-90 ℃; drying polymethyl methacrylate (PMMA) for 4-6 h at 80-90 ℃; drying polyethylene terephthalate (PET) at 120-130 ℃ for 4-6 h; drying Polyamide (PA) at 80-85 ℃ for 3-4 h; and drying the polypropylene (PP) for 2-3 h at the temperature of 60-70 ℃.
In a preferred embodiment of the invention, the injection molding material temperature setting range is 180-320 ℃, the mold temperature is 30-100 ℃, and the injection pressure is 60-140 MPa.
As a preferred embodiment, the injection molding conditions are set as follows according to different plastic materials: the temperature setting interval of a Polycarbonate (PC) nozzle is 250-320 ℃, the temperature of a die is 80-100 ℃, and the injection pressure is 80-140 MPa; the setting range of the temperature of an acrylonitrile-butadiene-styrene copolymer (ABS) nozzle is 190-250 ℃, the temperature of a die is 50-80 ℃, and the injection pressure is 80-140 MPa; the temperature setting interval of a polymethyl methacrylate (PMMA) nozzle is 180-230 ℃, the temperature of a die is 50-90 ℃, and the injection pressure is 80-140 MPa; the temperature setting range of the polyethylene glycol terephthalate injection nozzle is 280-295 ℃, the temperature of the die is 30-85 ℃, and the injection pressure is 60-140 MPa; setting the temperature of a Polyamide (PA) nozzle at 210-230 ℃, the temperature of a die at 50-80 ℃ and the injection pressure at 80-140 MPa; the temperature setting range of a polypropylene (PP) injection nozzle is 210-300 ℃, the temperature of a die is 50-80 ℃, and the injection pressure is 80-140 Mpa.
In a preferred embodiment of the present invention, the temperature of the heat treatment is 70 to 105 ℃ and the time is 30 to 60 min.
According to one aspect of the invention, the impeller is applied to the preparation of an easily cleaned range hood.
The impeller provided by the invention can be widely applied to the preparation process of the easily cleaned range hood.
The technical solution of the present invention will be further described with reference to the following examples.
Example 1
As shown in fig. 1 to 4, an impeller comprises a shaft sleeve 1 and an impeller frame group 2; the impeller frame group 2 comprises blades 21, a front disk ring 22 and a rear disk 23; the number of the blades 21 is multiple, and the blades 21 are connected between the front disk ring 22 and the rear disk 23 and are distributed along the circumferential direction of the front disk ring 22 and the circumferential direction of the rear disk 23; the blades 21, the front disk ring 22 and the rear disk 23 are made of injection molding materials, are subjected to injection molding, and are subjected to heat treatment and integral forming.
FIG. 5 is a graph showing the segregation of fluorine components after the heat treatment of the casting material of this example.
As can be seen from fig. 5, the impeller has a low surface energy due to the characteristics of the injection molding material of the present application, and oil stains are not easily attached to the surface of the impeller. Meanwhile, a small amount of oil stains attached to the impeller can be thrown away along with the centrifugal force generated by rotation of the impeller during use.
Referring to fig. 1, the impeller frame set 2 further includes a middle disk ring 24, and the middle disk ring 24 is disposed between the front disk ring 22 and the rear disk 23, and forms a cylindrical cavity with the blades 21 to be fixedly connected.
The preparation method of the impeller frame group 2 comprises the following steps:
(a) mixing and stirring the injection molding material at a stirring speed of 20r/m for 10min, and then baking for 3h at 65 ℃ to dry water to obtain a material A;
the injection molding material comprises the following raw materials in percentage by mass: 93% of polypropylene, 2% of perfluoropropyl perfluorovinyl ether and 5% of polytetrafluoroethylene;
the number average molecular weight of the soluble fluorine material obtained by copolymerizing the perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene is 8-10K.
(b) Performing injection molding by taking the material A as a raw material to obtain an intermediate impeller frame group 2 containing blades 21, a front disk ring 22, a middle disk ring 24 and a rear disk 23;
the material temperature setting interval of the injection molding is 250 ℃, the mold temperature is 70 ℃, and the injection pressure is 120 MPa;
(c) and (c) carrying out heat treatment on the impeller subjected to injection molding in the step (b) for 30 inches at the temperature of 100-105 ℃, and naturally cooling the impeller to room temperature in the air to obtain an impeller frame group 2.
Examples 2 to 5
An impeller is different from the impeller frame group 2 in injection molding material composition in the embodiment 1, and is the same as the impeller in the embodiment 1;
the preparation method of the impeller frame group 2 in the embodiment comprises the following steps:
(a) mixing and stirring the injection molding material at a stirring speed of 20r/m for 5-10 min, and then baking for 3h at 65 ℃ to dry water to obtain a material A;
the injection molding material comprises the following raw materials in percentage by mass:
the number average molecular weight of the soluble fluorine material obtained by copolymerizing the perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene is 8-10K.
(b) Performing injection molding by taking the material A as a raw material to obtain an intermediate impeller frame group 2 containing blades 21, a front disk ring 22, a middle disk ring 24 and a rear disk 23;
the material temperature setting interval of the injection molding is 210 ℃, the mold temperature is 60 ℃, and the injection pressure is 140 MPa;
(c) and (c) carrying out heat treatment on the impeller subjected to injection molding in the step (b) at the temperature of 100-105 ℃ for 30min, and naturally cooling the impeller to room temperature in the air to obtain an impeller frame group 2.
Examples 6 to 9
An impeller is different from the impeller frame group 2 in injection molding material composition in the embodiment 1, and is the same as the impeller in the embodiment 1;
the injection molding material comprises the following raw materials in percentage by mass:
the number average molecular weight of the soluble fluorine material obtained by copolymerizing the perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene is 8-10K.
Example 10
This example is the same as example 1 except that the heat treatment time in step (c) in the method of manufacturing the impeller frame assembly 2 is 60 min.
Example 11
This example is the same as example 2 except that the heat treatment time in step (c) in the method for manufacturing the impeller frame assembly 2 is 60 min.
Example 12
This example is the same as example 3 except that the heat treatment time in step (c) of the method for manufacturing the impeller frame assembly 2 is 60 min.
Example 13
An impeller, which is different from the embodiment 1 in the preparation method of an impeller frame group 2, and is otherwise the same as the embodiment 1;
the preparation method of the impeller frame group 2 in the embodiment comprises the following steps:
(a) mixing and stirring the injection molding material at a stirring speed of 20r/m for 10min, and then baking at 120 ℃ for 3h to dry water to obtain a material A;
the injection molding material comprises the following raw materials in percentage by mass: 93% of Polycarbonate (PC), 2% of perfluoropropyl perfluorovinyl ether and 5% of polytetrafluoroethylene;
the number average molecular weight of the soluble fluorine material obtained by copolymerizing the perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene is 8-10K.
(b) Performing injection molding by taking the material A as a raw material to obtain an intermediate impeller frame group 2 containing blades 21, a front disk ring 22, a middle disk ring 24 and a rear disk 23;
the material temperature setting interval of the injection molding is 250 ℃, the mold temperature is 90 ℃, and the injection pressure is 120 MPa;
(c) and (c) carrying out heat treatment on the impeller subjected to injection molding in the step (b) for 30 inches at the temperature of 100-105 ℃, and naturally cooling the impeller to room temperature in the air to obtain an impeller frame group 2.
Example 14
An impeller, which is different from the embodiment 1 in the preparation method of an impeller frame group 2, and is otherwise the same as the embodiment 1;
the preparation method of the impeller frame group 2 in the embodiment comprises the following steps:
(a) mixing and stirring the injection molding material at a stirring speed of 20r/m for 10min, and then baking for 3h at 80 ℃ to dry water to obtain a material A;
the injection molding material comprises the following raw materials in percentage by mass: 93% of acrylonitrile-butadiene-styrene copolymer (ABS), 2% of perfluoropropyl perfluorovinyl ether and 5% of polytetrafluoroethylene;
the number average molecular weight of the soluble fluorine material obtained by copolymerizing the perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene is 8-10K.
(b) Performing injection molding by taking the material A as a raw material to obtain an intermediate impeller frame group 2 containing blades 21, a front disk ring 22, a middle disk ring 24 and a rear disk 23;
the material temperature setting interval of the injection molding is 220 ℃, the mold temperature is 70 ℃, and the injection pressure is 130 MPa;
(c) and (c) carrying out heat treatment on the impeller subjected to injection molding in the step (b) for 30 inches at the temperature of 100-105 ℃, and naturally cooling the impeller to room temperature in the air to obtain an impeller frame group 2.
Example 15
An impeller, which is different from the embodiment 1 in the preparation method of an impeller frame group 2, and is otherwise the same as the embodiment 1;
the preparation method of the impeller frame group 2 in the embodiment comprises the following steps:
(a) mixing and stirring the injection molding material at a stirring speed of 20r/m for 10min, and then baking at 80 ℃ for 5h to dry water to obtain a material A;
the injection molding material comprises the following raw materials in percentage by mass: 93% of polymethyl methacrylate (PMMA), 2% of perfluoropropyl perfluorovinyl ether and 5% of polytetrafluoroethylene;
the number average molecular weight of the soluble fluorine material obtained by copolymerizing the perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene is 8-10K.
(b) Performing injection molding by taking the material A as a raw material to obtain an intermediate impeller frame group 2 containing blades 21, a front disk ring 22, a middle disk ring 24 and a rear disk 23;
the material temperature setting interval of the injection molding is 220 ℃, the mold temperature is 70 ℃, and the injection pressure is 100 MPa;
(c) and (c) carrying out heat treatment on the impeller subjected to injection molding in the step (b) for 30 inches at the temperature of 100-105 ℃, and naturally cooling the impeller to room temperature in the air to obtain an impeller frame group 2.
Example 16
An impeller, which is different from the embodiment 1 in the preparation method of an impeller frame group 2, and is otherwise the same as the embodiment 1;
the preparation method of the impeller frame group 2 in the embodiment comprises the following steps:
(a) mixing and stirring the injection molding material at a stirring speed of 20r/m for 10min, and then baking at 70 ℃ for 5h to dry water to obtain a material A;
the injection molding material comprises the following raw materials in percentage by mass: 93% of polyethylene terephthalate (PET), 2% of perfluoropropyl perfluorovinyl ether and 5% of polytetrafluoroethylene;
the number average molecular weight of the soluble fluorine material obtained by copolymerizing the perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene is 8-10K.
(b) Performing injection molding by taking the material A as a raw material to obtain an intermediate impeller frame group 2 containing blades 21, a front disk ring 22, a middle disk ring 24 and a rear disk 23;
the material temperature setting interval of the injection molding is 220 ℃, the mold temperature is 70 ℃, and the injection pressure is 100 MPa;
(c) and (c) carrying out heat treatment on the impeller subjected to injection molding in the step (b) for 30 inches at the temperature of 100-105 ℃, and naturally cooling the impeller to room temperature in the air to obtain an impeller frame group 2.
Example 17
An impeller, which is different from the embodiment 1 in the preparation method of an impeller frame group 2, and is otherwise the same as the embodiment 1;
the preparation method of the impeller frame group 2 in the embodiment comprises the following steps:
(a) mixing and stirring the injection molding material at a stirring speed of 20r/m for 10min, and then baking at 70 ℃ for 5h to dry water to obtain a material A;
the injection molding material comprises the following raw materials in percentage by mass: 93% of Polyamide (PA), 2% of perfluoropropyl perfluorovinyl ether and 5% of polytetrafluoroethylene;
the number average molecular weight of the soluble fluorine material obtained by copolymerizing the perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene is 8-10K.
(b) Performing injection molding by taking the material A as a raw material to obtain an intermediate impeller frame group 2 containing blades 21, a front disk ring 22, a middle disk ring 24 and a rear disk 23;
the material temperature setting interval of the injection molding is 220 ℃, the mold temperature is 70 ℃, and the injection pressure is 100 MPa;
(c) and (c) carrying out heat treatment on the impeller subjected to injection molding in the step (b) for 30 inches at the temperature of 100-105 ℃, and naturally cooling the impeller to room temperature in the air to obtain an impeller frame group 2.
Example 18
This example is the same as example 1 except that the number average molecular weight of the soluble fluorine material obtained by copolymerizing perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene in step (a) is 15K.
Comparative examples 1 to 3
This example is the same as example 1 except that the injection molding material of step (a) in the manufacturing method of the impeller frame assembly 2 is different from example 1;
the injection molding material comprises the following raw materials in percentage by mass:
comparative example 4
An impeller, which is different from the embodiment 1 in the preparation method of the impeller frame group 2, and 15 is the same as the embodiment 1;
the preparation method of the impeller frame group 2 in the embodiment comprises the following steps:
after the assembly by cold plate punching, the surface of the impeller is subjected to electrophoresis treatment.
Experimental example 1
In order to show that the impeller prepared by the method has the technical effect of easy cleaning (the water contact angle is large and is characterized by 20), the impeller prepared by the embodiments 1 to 18 and the impellers prepared by the comparative examples 1 to 4 are subjected to water contact angle characterization detection, and the specific detection method comprises the following steps:
the surface of a flat sample piece is wiped clean, 2 microliter of purified water is dripped into the surface of the sample piece by using a contact angle testing instrument, and an included angle theta between a liquid side and a solid-liquid boundary line is measured by using an ellipse/oblique ellipse fitting method.
(wherein, the contact angle refers to the tangent of the gas-liquid interface at the intersection point of gas, liquid and solid, the tangent is the included angle theta between the liquid side and the solid-liquid boundary line, the contact angle measurement is the main method for measuring the surface performance at present, and is an important parameter for measuring the wettability of the liquid to the material surface).
If θ e <90 °, the solid surface is hydrophilic, i.e. the liquid wets the solid more easily, and a smaller angle indicates better wettability;
if θ e >90 °, the solid surface is hydrophobic, i.e. the liquid does not easily wet the solid and moves easily over the surface. )
The specific detection results are as follows:
according to the impeller prepared by the method, the impeller is easy to clean, the later-stage easy-to-clean coating or external equipment auxiliary oil stain cleaning is not needed, and the easy-to-clean performance is lasting.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The injection molding material is characterized by being mainly prepared by mixing thermoplastic resin and a soluble fluorine material, performing injection molding, and performing heat treatment.
2. An injection molding material as claimed in claim 1, wherein the thermoplastic resin is a plastic material having linear and branched molecular structures.
3. An injection molding material as claimed in claim 1, wherein the thermoplastic resin comprises one of polycarbonate, acrylonitrile-butadiene-styrene copolymer, polymethyl methacrylate, polyethylene terephthalate, polyamide, or polypropylene.
4. An injection molding material as claimed in claim 1, wherein the soluble fluoro material is a copolymer of perfluoropropyl perfluorovinyl ether and a fluoroalkane polymer;
or the soluble fluorine material is a copolymer of perfluoropropyl perfluorovinyl ether and a fluorine-containing olefin polymer; preferably a copolymer of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene;
and/or;
the number average molecular weight of the soluble fluorine material is less than 10K.
5. A injection molding material according to claim 4, wherein the injection molding material comprises the following raw materials in percentage by mass:
80-93% of thermoplastic resin, 2-6% of perfluoropropyl perfluorovinyl ether and 5-14% of fluorine-containing alkane polymer or fluorine-containing olefin polymer.
6. The impeller is characterized by comprising a shaft sleeve and an impeller frame group;
the impeller frame set is mainly prepared by the steps of mixing the injection molding materials according to any one of claims 1-5, injection molding, and then carrying out heat treatment and integral molding.
7. The impeller of claim 6, wherein the method of manufacturing the impeller frame set comprises the steps of:
mixing injection molding materials and drying to obtain a material A; performing injection molding by taking the material A as a raw material to obtain an intermediate impeller frame group; and carrying out heat treatment on the intermediate impeller frame group to obtain the impeller frame group.
8. The impeller according to claim 7, wherein the stirring speed of the injection molding material mixture is 15-20 r/m, and the stirring time is 5-10 min;
and/or;
drying the injection molding material after mixing at the temperature of 60-130 ℃ for 2-6 h;
and/or;
the injection molding material temperature setting range is 180-320 ℃, the mold temperature is 30-100 ℃, and the injection pressure is 60-140 MPa.
9. The impeller according to claim 7, wherein the temperature of the heat treatment is 70 to 105 ℃ and the time is 30 to 60 min.
10. Use of the impeller according to claim 6 for the preparation of an easy-to-clean range hood.
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| CN202111064128.0A CN113603973A (en) | 2021-09-10 | 2021-09-10 | Injection molding material, impeller and application thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001129933A (en) * | 1998-12-25 | 2001-05-15 | Toto Ltd | Resin molded object and production method thereof |
| CN103244455A (en) * | 2012-02-09 | 2013-08-14 | 三星电机株式会社 | Impeller for electric blower and apparatus for manufacturing the same |
| CN108641270A (en) * | 2018-04-16 | 2018-10-12 | 奥普家居股份有限公司 | A kind of oil-stain-preventing ABS material and preparation method thereof |
-
2021
- 2021-09-10 CN CN202111064128.0A patent/CN113603973A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001129933A (en) * | 1998-12-25 | 2001-05-15 | Toto Ltd | Resin molded object and production method thereof |
| CN103244455A (en) * | 2012-02-09 | 2013-08-14 | 三星电机株式会社 | Impeller for electric blower and apparatus for manufacturing the same |
| CN108641270A (en) * | 2018-04-16 | 2018-10-12 | 奥普家居股份有限公司 | A kind of oil-stain-preventing ABS material and preparation method thereof |
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Application publication date: 20211105 |