CN107936524A - A kind of ECO ionic conductions type polyurethane charging roller and preparation method thereof - Google Patents
A kind of ECO ionic conductions type polyurethane charging roller and preparation method thereof Download PDFInfo
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- CN107936524A CN107936524A CN201711001672.4A CN201711001672A CN107936524A CN 107936524 A CN107936524 A CN 107936524A CN 201711001672 A CN201711001672 A CN 201711001672A CN 107936524 A CN107936524 A CN 107936524A
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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
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
- C08L71/03—Polyepihalohydrins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
- G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
- G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
- G03G15/0233—Structure, details of the charging member, e.g. chemical composition, surface properties
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08K3/28—Nitrogen-containing compounds
- C08K2003/285—Ammonium nitrates
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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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
- C08K2003/3054—Ammonium sulfates
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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
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention relates to charging roller technical field, more particularly to a kind of ECO ionic conductions type polyurethane charging roller and preparation method thereof, including roll shaft, the conductive polyurethane layer being sheathed on the outside of roll shaft and the ECO ionic conduction rubber layers being sheathed on the outside of conductive polyurethane layer；The ECO ionic conductions rubber layer is made of the raw material of following parts by weight：60 80 parts of chlorohydrin rubber, 25 parts of ionic conductive agent, 6 10 parts of accelerating agent, 48 parts of activating agent, 13 parts of bridging agent, 12 parts of acid-acceptor, 12 parts of dispersant, 35 parts of processing aid.The charging roller good conductivity of the present invention, also with good mechanical performance, durability is good, service life length.
Description
Technical field
The present invention relates to charging roller technical field, and in particular to a kind of ECO ionic conductions type polyurethane charging roller and its system
Preparation Method.
Background technology
The charging roller used on printing device is responsible for contacting rotation with photosensitive drums, makes photosensitive drums uniform charging, produces exposure
Electrostatic latent image after light.Existing charging roller electric conductivity is poor, and mechanical performance and durability are poor, and service life is short.
The content of the invention
In order to overcome shortcoming and defect existing in the prior art, it is an object of the invention to provide a kind of ECO ions to lead
Electric type polyurethane charging roller, the charging roller good conductivity, also with good mechanical performance, durability is good, service life length.
Another object of the present invention is to provide a kind of preparation method of ECO ionic conductions type polyurethane charging roller, the system
Preparation Method step is simple, convenient operation and control, stable quality, and production efficiency is high, and production cost is low, can large-scale industry metaplasia
Production.
The purpose of the present invention is achieved through the following technical solutions：A kind of ECO ionic conductions type polyurethane charging roller, including roller
Axis, the conductive polyurethane layer being sheathed on the outside of roll shaft and the ECO ionic conduction rubber being sheathed on the outside of conductive polyurethane layer
Layer；
The ECO ionic conductions rubber layer is made of the raw material of following parts by weight：
It is more highly preferred to, the ECO ionic conductions rubber layer is made of the raw material of following parts by weight：
Preferably, the ionic conductive agent is ammonium sulfate, ammonium nitrate, ammonium iodide, LiBF4、LiPF6、LiAsF6、LiSbF6、
LiCF3SO3、LiN(SO2CF3)2、LiSO3C4F9、LiC(SO2CF3)3With LiB (C6H5)4At least one of.
The ECO ionic conductions rubber layer of the present invention can improve leading for conductive material by using above-mentioned ionic conductive agent
The advantages such as electrical characteristics, physical property, make ECO ionic conductions rubber layer have electric conductivity that is excellent and stablizing and mechanical performance.
Preferably, the accelerating agent is with weight ratio by zinc dibutyl dithiocarbamate and 2- benzothiazolyl mercaptans
The mixture of 2-4: 1 composition.
The ECO ionic conductions rubber layer of the present invention is by using zinc dibutyl dithiocarbamate and 2- mercapto benzos
Thiazole is as accelerating agent compounding use, and it is 2-4: 1 to control its weight ratio, can promote sulfurization, can shorten vulcanization time, is dropped
Low curing temperature, reduces vulcanizing agent dosage and improves the physical mechanical property of rubber.
The activating agent is made of zinc oxide, zinc stearate and polyethylene glycol with weight ratio 1.5-2.5: 0.8-1.2: 1
Mixture.
The ECO ionic conductions rubber layer of the present invention is by using zinc oxide, zinc stearate and polyethylene glycol as activating agent
Compounding use, and it is 1.5-2.5: 0.8-1.2: 1 to control its weight proportion, can promote sulfuration process, in extrusion molding just
In extrusion, and increase the smoothness of ECO ionic conduction rubber layers.
Preferably, the bridging agent exists for vinylchloride units content in 40%-60%, vinyl acetate units content
20%-30%, butyl acrylate units content 20%-30% vinyl chloride-vinyl acetate-butyl acrylate ternary polymerization
Thing.
The ECO ionic conductions rubber layer of the present invention is by using vinyl chloride-vinyl acetate-butyl acrylate ternary polymerization
Thing strictly controls the content of each monomeric unit as bridging agent, can improve water-fast, resistance toization of ECO ionic conduction rubber layers
The performances such as product, wear-resisting, adhesive force, mechanics machinery.
The mixture that the acid-acceptor is made of magnesia and calcium oxide with weight ratio 1: 0.5-1.5.
The present invention ECO ionic conductions rubber layer by using magnesia and calcium oxide as acid-acceptor compounding use, and
It is 1: 0.5-1.5 to control its weight ratio, can absorb the hydrogen chloride gas produced in chlorohydrin rubber process, and improve ECO
The tensile strength and elongation at break of ionic conduction rubber layer.
Preferably, the dispersant is with 1-2: 1 group of weight ratio by hexenyl bis-stearamides and glyceryl monostearate
Into mixture.
The ECO ionic conductions rubber layer of the present invention is by using hexenyl bis-stearamides and glyceryl monostearate conduct
Dispersant compounding use, and it is 1-2: 1 to control its weight ratio, can improve the dispersion performance of filler, improves ECO ionic conduction rubbers
The intensity of glue-line.
The processing aid is with weight by oxidized polyethylene wax, pentaerythritol stearate and ethylene bis stearic acid amide
Than the mixture of 1.5-2.5: 0.8-1.2: 1 composition.
The ECO ionic conductions rubber layer of the present invention is by using oxidized polyethylene wax, pentaerythritol stearate and ethylene
Double stearic amides are as lubricant compounding use, and it is 1.5-2.5: 0.8-1.2: 1 to control its weight ratio, material can be made to exist
Improve the mobility of material and the release property of product in process.
Preferably, the conductive polyurethane layer is made of the raw material of following parts by weight：
It is more highly preferred to, the conductive polyurethane layer is made of the raw material of following parts by weight：
Preferably, the polyether polyol for molecular weight in the propane diols polyethers of 800-2000, molecular weight in 400-4000
Trimethylolpropane polyethers and terminal hydroxy group at least one of PolyTHF.
The conductive polyurethane layer of the present invention is by using above-mentioned polyether polyol, obtained conductive polyurethane low-temperature flexibility
Can be good, anti-hydrolytic performance is excellent, and processing performance is excellent.
The degree of functionality of the polyether polyol is 2-4, hydroxyl value 40-60mgKOH/g, acid number 0.6-1.0mgKOH/g,
Amine value is 6-10mgKOH/g, dynamic viscosity 4500-5500mPa.s, water content≤0.1%.
The conductive polyurethane layer of the present invention is by strictly controlling the degree of functionality of polyether polyol, hydroxyl value, acid number, amine value power
The parameter such as viscosity and water content, obtained conductive polyurethane low-temperature flexibility can be good, and anti-hydrolytic performance is excellent, and processing performance is excellent
It is good.
Preferably, the isocyanates is Toluene-2,4-diisocyanate, 4- diisocyanate.
The conductive polyurethane layer of the present invention is by using Toluene-2,4-diisocyanate, 4- diisocyanate, obtained conductive polyurethane low temperature
Submissive performance is good, and anti-hydrolytic performance is excellent, and processing performance is excellent.
The filler is particle diameter at 100-500 μm and through the processed powdered whiting of higher fatty acid salt.
The conductive polyurethane layer of the present invention is at 100-500 μm and processed through higher fatty acid salt by using particle diameter
Powdered whiting has preferable mechanical performance as filler, obtained conductive polyurethane.
Preferably, the catalyst is made of stannous octoate and A33 catalyst with weight ratio 8: 2-4.
The present invention conductive polyurethane layer by using stannous octoate and A33 catalyst as catalyst compounding use, and
It is 8: 2-4 to control its weight ratio, and compared with single catalyst, its catalytic effect is more preferable, and catalytic rate is faster.
The silicone oil is methyl-silicone oil, ethyl silicon oil, phenyl silicone oil, Methyl Hydrogen Polysiloxane Fluid, methyl phenyl silicone oil, methyl chloride
In phenyl silicone oil, MethylethoxylsiliconFluid Fluid, methyl trifluoro propyl silicone oil, methyl vinyl silicon oil and methylhydroxy silicone oil at least
It is a kind of.
The conductive polyurethane layer of the present invention is by using above-mentioned silicone oil so that conductive polyurethane has good chemical stabilization
Property, excellent electrical insulating property and resistant of high or low temperature.
A kind of preparation method of ECO ionic conductions type polyurethane charging roller, includes the following steps：
(1) preparation of ECO ionic conductions rubber layer：The raw material needed for ECO ionic conduction rubber layers is weighed by weight ratio,
Through batch mixing, granulation and extrusion molding, ECO ionic conduction rubber layers are made；
(2) compound extruded：By roll shaft and conductive polyurethane layer compound extrusion moulding；
(3) casing：ECO ionic conduction rubber layers are sleeved on to the outside of conductive polyurethane layer, ECO ionic conduction types are made and gather
Urethane charging roller.
The beneficial effects of the present invention are：The charging roller good conductivity of the present invention, it is durable also with good mechanical performance
Property it is good, service life length.
The charging roller wear-resisting property of the present invention is good, service life length.The charging roller of the present invention also has the following advantages that：1. fit
When volume resistivity and distribution of resistance it is uniform；2. appropriate hardness and surface roughness, make charging roller and photosensitive drums fully and
Uniformly contact；3. the material for forming charging roller is stablized with the change property of environmental change such as temperature and humidity, so that required charging
Voltage reaches minimum；4. even structure, so that uniform to photosensitive drum charging；5. good mechanical performance, durability is good；6. will not
Photosensitive drums are caused to damage or accelerate its aging, so as to obtain good image effect and long service life.
The preparation method step of the present invention is simple, convenient operation and control, stable quality, and production efficiency is high, and production cost is low,
Can large-scale industrial production.
Embodiment
For the ease of the understanding of those skilled in the art, with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of ECO ionic conductions type polyurethane charging roller, including roll shaft, be sheathed on the outside of roll shaft conductive polyurethane layer,
And it is sheathed on the ECO ionic conduction rubber layers on the outside of conductive polyurethane layer；
The ECO ionic conductions rubber layer is made of the raw material of following parts by weight：
The ionic conductive agent is ammonium sulfate, ammonium nitrate or ammonium iodide.
The accelerating agent is made of zinc dibutyl dithiocarbamate and 2- benzothiazolyl mercaptans with weight ratio 2: 1
Mixture；The mixing that the activating agent is made of zinc oxide, zinc stearate and polyethylene glycol with weight ratio 1.5: 0.8: 1
Thing.
The bridging agent is for vinylchloride units content in 40%, vinyl acetate units content in 30%, butyl acrylate
Vinyl chloride-vinyl acetate-butyl acrylate terpolymer of the unit content 30%；The acid-acceptor be by magnesia and
The mixture that calcium oxide is formed with weight ratio 1: 0.5.
The mixing that the dispersant is made of hexenyl bis-stearamides and glyceryl monostearate with weight ratio 1: 1
Thing；The processing aid is with weight ratio 1.5 by oxidized polyethylene wax, pentaerythritol stearate and ethylene bis stearic acid amide
: the mixture of 0.8: 1 composition.
The conductive polyurethane layer is made of the raw material of following parts by weight：
The polyether polyol is propane diols polyethers of the molecular weight 1200.
The degree of functionality of the polyether polyol is 2, hydroxyl value 40mgKOH/g, acid number 0.6mgKOH/g, and amine value is
6mgKOH/g, dynamic viscosity 4500mPa.s, water content≤0.1%.
The isocyanates is Toluene-2,4-diisocyanate, 4- diisocyanate.
The filler is particle diameter at 100 μm and through the processed powdered whiting of higher fatty acid salt.
The catalyst is made of stannous octoate and A33 catalyst with weight ratio 8: 2.
The silicone oil is methyl-silicone oil, ethyl silicon oil or phenyl silicone oil.
A kind of preparation method of ECO ionic conductions type polyurethane charging roller, includes the following steps：
(1) preparation of ECO ionic conductions rubber layer：The raw material needed for ECO ionic conduction rubber layers is weighed by weight ratio,
Through batch mixing, granulation and extrusion molding, ECO ionic conduction rubber layers are made；
(2) compound extruded：By roll shaft and conductive polyurethane layer compound extrusion moulding；
(3) casing：ECO ionic conduction rubber layers are sleeved on to the outside of conductive polyurethane layer, ECO ionic conduction types are made and gather
Urethane charging roller.
Embodiment 2
The difference of the present embodiment and above-described embodiment 1 is：
The ECO ionic conductions rubber layer is made of the raw material of following parts by weight：
The ionic conductive agent is LiBF4、LiPF6Or LiAsF6。
The accelerating agent is with 2.5: 1 groups of weight ratio by zinc dibutyl dithiocarbamate and 2- benzothiazolyl mercaptans
Into mixture；The mixing that the activating agent is made of zinc oxide, zinc stearate and polyethylene glycol with weight ratio 1.8: 0.9: 1
Thing.
The bridging agent is for vinylchloride units content in 45%, vinyl acetate units content in 27.5%, acrylic acid fourth
Vinyl chloride-vinyl acetate-butyl acrylate terpolymer of the ester units content 27.5%；The acid-acceptor is by aoxidizing
The mixture that magnesium and calcium oxide are formed with weight ratio 1: 0.8.
The mixing that the dispersant is made of hexenyl bis-stearamides and glyceryl monostearate with weight ratio 1.2: 1
Thing；The processing aid is with weight ratio 1.8 by oxidized polyethylene wax, pentaerythritol stearate and ethylene bis stearic acid amide
: the mixture of 0.9: 1 composition.
The conductive polyurethane layer is made of the raw material of following parts by weight：
The polyether polyol is trimethylolpropane polyethers of the molecular weight 1000.
The degree of functionality of the polyether polyol is 3, hydroxyl value 45mgKOH/g, acid number 0.7mgKOH/g, and amine value is
7mgKOH/g, dynamic viscosity 4800mPa.s, water content≤0.1%.
The isocyanates is Toluene-2,4-diisocyanate, 4- diisocyanate.
The filler is particle diameter at 200 μm and through the processed powdered whiting of higher fatty acid salt.
The catalyst is made of stannous octoate and A33 catalyst with weight ratio 8: 2.5.
The silicone oil is Methyl Hydrogen Polysiloxane Fluid or methyl phenyl silicone oil.
Embodiment 3
The difference of the present embodiment and above-described embodiment 1 is：
The ECO ionic conductions rubber layer is made of the raw material of following parts by weight：
The ionic conductive agent is LiSbF6Or LiCF3SO3。
The accelerating agent is made of zinc dibutyl dithiocarbamate and 2- benzothiazolyl mercaptans with weight ratio 3: 1
Mixture；The mixture that the activating agent is made of zinc oxide, zinc stearate and polyethylene glycol with weight ratio 2: 1: 1.
The bridging agent is for vinylchloride units content in 50%, vinyl acetate units content in 25%, butyl acrylate
Vinyl chloride-vinyl acetate-butyl acrylate terpolymer of the unit content 25%；The acid-acceptor be by magnesia and
The mixture that calcium oxide is formed with weight ratio 1: 1.
The mixing that the dispersant is made of hexenyl bis-stearamides and glyceryl monostearate with weight ratio 1.5: 1
Thing；The processing aid is with weight ratio 2: 1 by oxidized polyethylene wax, pentaerythritol stearate and ethylene bis stearic acid amide
: the mixture of 1 composition.
The conductive polyurethane layer is made of the raw material of following parts by weight：
The polyether polyol is the PolyTHF of terminal hydroxy group.
The degree of functionality of the polyether polyol is 3, hydroxyl value 50mgKOH/g, acid number 0.8mgKOH/g, and amine value is
8mgKOH/g, dynamic viscosity 5000mPa.s, water content≤0.1%.
The isocyanates is Toluene-2,4-diisocyanate, 4- diisocyanate.
The filler is particle diameter at 300 μm and through the processed powdered whiting of higher fatty acid salt.
The catalyst is made of stannous octoate and A33 catalyst with weight ratio 8: 3.
The silicone oil is methylchlorophenyl silicone oil or MethylethoxylsiliconFluid Fluid.
Embodiment 4
The difference of the present embodiment and above-described embodiment 1 is：
The ECO ionic conductions rubber layer is made of the raw material of following parts by weight：
The ionic conductive agent is LiN (SO2CF3)2Or LiSO3C4F9。
The accelerating agent is with 3.5: 1 groups of weight ratio by zinc dibutyl dithiocarbamate and 2- benzothiazolyl mercaptans
Into mixture；The mixing that the activating agent is made of zinc oxide, zinc stearate and polyethylene glycol with weight ratio 2.2: 1.1: 1
Thing.
The bridging agent is for vinylchloride units content in 55%, vinyl acetate units content in 22.5%, acrylic acid fourth
Vinyl chloride-vinyl acetate-butyl acrylate terpolymer of the ester units content 22.5%；The acid-acceptor is by aoxidizing
The mixture that magnesium and calcium oxide are formed with weight ratio 1: 1.2.
The mixing that the dispersant is made of hexenyl bis-stearamides and glyceryl monostearate with weight ratio 1.8: 1
Thing；The processing aid is with weight ratio 2.2 by oxidized polyethylene wax, pentaerythritol stearate and ethylene bis stearic acid amide
: the mixture of 1.1: 1 compositions.
The conductive polyurethane layer is made of the raw material of following parts by weight：
The polyether polyol is propane diols polyethers of the molecular weight 2000.
The degree of functionality of the polyether polyol is 3, hydroxyl value 55mgKOH/g, acid number 0.9mgKOH/g, and amine value is
9mgKOH/g, dynamic viscosity 5200mPa.s, water content≤0.1%.
The isocyanates is Toluene-2,4-diisocyanate, 4- diisocyanate.
The filler is particle diameter at 400 μm and through the processed powdered whiting of higher fatty acid salt.
The catalyst is made of stannous octoate and A33 catalyst with weight ratio 8: 3.5.
The silicone oil is methyl trifluoro propyl silicone oil or methyl vinyl silicon oil.
Embodiment 5
The difference of the present embodiment and above-described embodiment 1 is：
The ECO ionic conductions rubber layer is made of the raw material of following parts by weight：
The ionic conductive agent is LiC (SO2CF3)3Or LiB (C6H5)4。
The accelerating agent is made of zinc dibutyl dithiocarbamate and 2- benzothiazolyl mercaptans with weight ratio 4: 1
Mixture；The mixing that the activating agent is made of zinc oxide, zinc stearate and polyethylene glycol with weight ratio 2.5: 1.2: 1
Thing.
The bridging agent is for vinylchloride units content in 60%, vinyl acetate units content in 20%, butyl acrylate
Vinyl chloride-vinyl acetate-butyl acrylate terpolymer of the unit content 20%；The acid-acceptor be by magnesia and
The mixture that calcium oxide is formed with weight ratio 1: 1.5.
The mixing that the dispersant is made of hexenyl bis-stearamides and glyceryl monostearate with weight ratio 2: 1
Thing；The processing aid is with weight ratio 2.5 by oxidized polyethylene wax, pentaerythritol stearate and ethylene bis stearic acid amide
: the mixture of 1.2: 1 compositions.
The conductive polyurethane layer is made of the raw material of following parts by weight：
The polyether polyol is trimethylolpropane polyethers of the molecular weight 4000.
The degree of functionality of the polyether polyol is 4, hydroxyl value 60mgKOH/g, acid number 1.0mgKOH/g, and amine value is
10mgKOH/g, dynamic viscosity 5500mPa.s, water content≤0.1%.
The isocyanates is Toluene-2,4-diisocyanate, 4- diisocyanate.
The filler is particle diameter at 500 μm and through the processed powdered whiting of higher fatty acid salt.
The catalyst is made of stannous octoate and A33 catalyst with weight ratio 8: 4.
The silicone oil is methylhydroxy silicone oil.
The charging roller hardness of the present invention can reach 80-90 ℉, and resistance can reach 0.4-0.8M Ω, and good conductivity is resistance to
It is good to grind performance, abrasion resistance test can reach up to ten thousand times, and good weatherability, ultraviolet light and aging experimental test can reach 2024h
More than, high temperature resistant and resistance to low temperature are good, and high temperature resistant test can reach more than 130 DEG C, and low temperature resistant test can reach -50 DEG C
Below；Also there is good mechanical performance, durability is good, service life length.
Above-described embodiment is the preferable implementation of the present invention, and in addition, the present invention can be realized with other manner,
Do not depart from and any on the premise of present inventive concept obviously replace within protection scope of the present invention.
Claims (10)
- A kind of 1. ECO ionic conductions type polyurethane charging roller, it is characterised in that：Including roll shaft, the conduction being sheathed on the outside of roll shaft Layer of polyurethane and the ECO ionic conduction rubber layers being sheathed on the outside of conductive polyurethane layer；The ECO ionic conductions rubber layer is made of the raw material of following parts by weight：
- A kind of 2. ECO ionic conductions type polyurethane charging roller according to claim 1, it is characterised in that：It is described conductive poly- Urethane layer is made of the raw material of following parts by weight：
- A kind of 3. ECO ionic conductions type polyurethane charging roller according to claim 1, it is characterised in that：The ion is led Electric agent is ammonium sulfate, ammonium nitrate, ammonium iodide, LiBF4、LiPF6、LiAsF6、LiSbF6、LiCF3SO3、LiN(SO2CF3)2、 LiSO3C4F9、LiC(SO2CF3)3With LiB (C6H5)4At least one of.
- A kind of 4. ECO ionic conductions type polyurethane charging roller according to claim 1, it is characterised in that：The accelerating agent It is with weight ratio 2-4 by zinc dibutyl dithiocarbamate and 2- benzothiazolyl mercaptans:The mixture of 1 composition；The work Property agent is with weight ratio 1.5-2.5 by zinc oxide, zinc stearate and polyethylene glycol：0.8-1.2：The mixture of 1 composition.
- A kind of 5. ECO ionic conductions type polyurethane charging roller according to claim 1, it is characterised in that：The bridging agent For vinylchloride units content in 40%-60%, vinyl acetate units content in 20%-30%, butyl acrylate units content In vinyl chloride-vinyl acetate-butyl acrylate terpolymer of 20%-30%；The acid-acceptor is by magnesia and oxygen Change calcium with weight ratio 1:The mixture of 0.5-1.5 compositions.
- A kind of 6. ECO ionic conductions type polyurethane charging roller according to claim 1, it is characterised in that：The dispersant It is with weight ratio 1-2 by hexenyl bis-stearamides and glyceryl monostearate:The mixture of 1 composition；The processing aid is By oxidized polyethylene wax, pentaerythritol stearate and ethylene bis stearic acid amide with weight ratio 1.5-2.5：0.8-1.2：1 group Into mixture.
- A kind of 7. ECO ionic conductions type polyurethane charging roller according to claim 2, it is characterised in that：The polyethers is more First alcohol for molecular weight the propane diols polyethers of 800-2000, molecular weight 400-4000 trimethylolpropane polyethers and terminal hydroxy group At least one of PolyTHF；The degree of functionality of the polyether polyol is 2-4, hydroxyl value 40-60mgKOH/g, acid number For 0.6-1.0mgKOH/g, amine value 6-10mgKOH/g, dynamic viscosity 4500-5500mPa.s, water content≤0.1%.
- A kind of 8. ECO ionic conductions type polyurethane charging roller according to claim 2, it is characterised in that：The isocyanic acid Ester is Toluene-2,4-diisocyanate, 4- diisocyanate；The filler is at 100-500 μm and processed heavy through higher fatty acid salt for particle diameter Matter calcium carbonate.
- A kind of 9. ECO ionic conductions type polyurethane charging roller according to claim 2, it is characterised in that：The catalyst By stannous octoate and A33 catalyst with weight ratio 8:2-4 is formed；The silicone oil for methyl-silicone oil, ethyl silicon oil, phenyl silicone oil, Methyl Hydrogen Polysiloxane Fluid, methyl phenyl silicone oil, methylchlorophenyl silicone oil, MethylethoxylsiliconFluid Fluid, methyl trifluoro propyl silicone oil, methyl At least one of vinyl silicone oil and methylhydroxy silicone oil.
- 10. such as a kind of preparation method of ECO ionic conductions type polyurethane charging roller of claim 1-9 any one of them, it is special Sign is：Include the following steps：(1) preparation of ECO ionic conductions rubber layer：The raw material needed for ECO ionic conduction rubber layers is weighed by weight ratio, through mixed Material, granulation and extrusion molding, are made ECO ionic conduction rubber layers；(2) compound extruded：By roll shaft and conductive polyurethane layer compound extrusion moulding；(3) casing：ECO ionic conduction rubber layers are sleeved on to the outside of conductive polyurethane layer, ECO ionic conduction type polyurethanes are made Charging roller.
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| CN109709781A (en) * | 2018-12-12 | 2019-05-03 | 东莞市沃顿橡塑新材料有限公司 | A kind of ECO ionic conduction type charging roller and preparation method thereof |
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