CN112238585A - Production process of anti-aging window wiper - Google Patents

Production process of anti-aging window wiper Download PDF

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Publication number
CN112238585A
CN112238585A CN202010913467.0A CN202010913467A CN112238585A CN 112238585 A CN112238585 A CN 112238585A CN 202010913467 A CN202010913467 A CN 202010913467A CN 112238585 A CN112238585 A CN 112238585A
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parts
rubber
semi
window wiper
mixing
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盛建良
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Jiaxing Jiexiang Sanitary Ware Co ltd
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Jiaxing Jiexiang Sanitary Ware Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/002—Methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L11/00—Compositions of homopolymers or copolymers of chloroprene
    • 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
    • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes
    • 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
    • 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
    • C08K3/38—Boron-containing compounds
    • C08K2003/382—Boron-containing compounds and nitrogen
    • C08K2003/385—Binary compounds of nitrogen with boron
    • 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
    • C08K2201/011—Nanostructured additives
    • 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
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • 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
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • 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
    • 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

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Abstract

The invention discloses a production process of an aging-resistant window wiper, which comprises the following steps: s1: preparing raw materials: 60-70 parts of methyl vinyl silicone rubber, 25-30 parts of fluorosilicone rubber, 6-8 parts of hydroxyl-terminated polydimethylsiloxane, 0.7-0.9 part of silane coupling agent, 0.12-0.15 part of toluene diisocyanate, 3-5 parts of white carbon black, 2-3 parts of fumed silica, 1.5-1.8 parts of zinc oxide, 2.5-4.5 parts of anti-aging agent, 2-4 parts of heat stabilizer and 2-4 parts of crosslinking agent; s2: mixing; s3: extruding the rubber material mixed in the step S2 into strips through a screw extruder; s4: feeding the extruded semi-finished product into an oven at 80-85 ℃ for preheating; then placing the preheated semi-finished product extruded into strips into a vulcanization mold, and vulcanizing for 4-8min at the pressure of 160-; s5: cooling after vulcanization to obtain a semi-finished product of the window wiper; s6: the surface of the semi-finished window wiper is coated with a coating layer to obtain the finished window wiper, so that the finished window wiper is not easy to age and harden and crack, and the friction force between the finished window wiper and the surface of glass is obviously reduced.

Description

Production process of anti-aging window wiper
Technical Field
The invention belongs to the technical field of rubber part processing, and particularly relates to a production process of an anti-aging window wiper.
Background
Window scrapers are used primarily for cleaning glass surfaces (or other hard surfaces) by suctioning and/or spraying a liquid (e.g., a cleaning liquid) off the glass surface (or other hard surface) and/or the like. The traditional window wiper is made of traditional rubber, so that the traditional window wiper has poor aging resistance, the service life of the traditional window wiper is shortened, and the traditional window wiper is easy to age, harden and crack after being used for a period of time, so that the traditional window wiper cannot be used; in addition, the friction between the traditional window scraper and the glass surface is large, so that the window scraper is difficult to use and is not smooth to move, the problem that the window scraper is not cleaned cleanly and has residue is easily caused at a position which is not smooth, and the problem that the window scraper needs to be as soft as possible when in use is considered, so that the window scraper is better in contact with the glass surface fully, but the window scraper is not wear-resistant, the service life is greatly reduced, and the problem that the fitting performance of the window scraper and the glass surface is reduced if harder and wear-resistant rubber is directly used.
Disclosure of Invention
The invention aims to provide a production process of an anti-aging window wiper, which aims to solve the technical problems in the background art.
In order to solve the technical problem, the invention aims to realize that:
a production process of an aging-resistant window wiper comprises the following steps:
s1: preparing raw materials: 60-70 parts of methyl vinyl silicone rubber, 25-30 parts of fluorosilicone rubber, 6-8 parts of hydroxyl-terminated polydimethylsiloxane, 0.7-0.9 part of silane coupling agent, 0.12-0.15 part of toluene diisocyanate, 3-5 parts of white carbon black, 2-3 parts of fumed silica, 1.5-1.8 parts of zinc oxide, 2.5-4.5 parts of anti-aging agent, 2-4 parts of heat stabilizer and 2-4 parts of crosslinking agent;
s2: mixing: carrying out high-speed mixing on methyl vinyl silicone rubber and fluorosilicone rubber at the temperature of 115-125 ℃ for 3-5min, then transferring the mixture into an environment of 10-20 ℃ for cooling treatment for 3-5h to obtain mixed silicone rubber, feeding the mixed silicone rubber into an internal mixer, adding hydroxyl-terminated polydimethylsiloxane, a silane coupling agent, white carbon black, fumed silica, zinc oxide, an anti-aging agent and a heat stabilizer, and mixing for 10-15 min at the temperature of 100-105 ℃; then continuously mixing for 8-12 min at the temperature of 115-120 ℃; then cooling to the temperature of 105-108 ℃, adding toluene diisocyanate and a cross-linking agent, continuously mixing for 7-10 min, and then mixing at a high speed of 140-155 ℃ for 6-8 min; then discharging rubber, turning over by an open mill, then discharging and cooling;
s3: extruding the rubber material mixed in the step S2 into strips through a screw extruder;
s4: feeding the extruded semi-finished product into an oven at 80-85 ℃ for preheating; then placing the preheated semi-finished product extruded into strips into a vulcanization mold, and vulcanizing for 4-8min at the pressure of 160-;
s5: cooling after vulcanization to obtain a semi-finished product of the window wiper;
s6: and coating a coating layer on the surface of the semi-finished window wiper to obtain a finished window wiper.
On the basis of the above scheme and as a preferable scheme of the scheme: the production steps of the coating layer are as follows:
a: preparing raw materials, namely preparing 30-40 parts of chloroprene rubber, 30-40 parts of ethylene propylene diene monomer, 8-14 parts of silicon micropowder, 3-5 parts of boron nitride, 15-20 parts of nitrile rubber, 6-10 parts of nano graphene, 2-3 parts of talcum powder, 1-2 parts of cyclohexanone oxime, 5-8 parts of linoleic acid, 10-15 parts of a composite stabilizer, 5-10 parts of a cross-linking agent, 6-8 parts of hydroxyl-terminated polydimethylsiloxane and 0.7-0.9 part of a silane coupling agent;
b: mixing, namely mixing chloroprene rubber, ethylene propylene diene monomer rubber, silica powder, boron nitride, nitrile rubber, nano graphene, talcum powder, cyclohexanone oxime, linoleic acid and a composite stabilizer, feeding the mixed rubber into an internal mixer, adding a cross-linking agent, hydroxyl-terminated polydimethylsiloxane and a silane coupling agent, continuously mixing for 7-10 min, and then mixing at a high speed of 140-155 ℃ for 6-8 min; then discharging rubber, turning over by an open mill, then discharging and cooling;
c: obtaining a semi-finished product of the coating layer.
On the basis of the above scheme and as a preferable scheme of the scheme: coating the obtained semi-finished product of the coating layer on the surface of the semi-finished product of the window wiper, and sending the semi-finished product of the coating layer into an oven at 80-85 ℃ for preheating; preheating, placing into a vulcanization mold, and vulcanizing at the pressure of 160-180kgf/cm2 and the temperature of 170-180 ℃ for 5-10 min; and cooling to obtain the finished window wiper product.
On the basis of the above scheme and as a preferable scheme of the scheme: the raw materials in step S1 are 60 parts of methyl vinyl silicone rubber, 25 parts of fluorosilicone rubber, 6 parts of hydroxyl-terminated polydimethylsiloxane, 0.7 part of silane coupling agent, 0.12 part of toluene diisocyanate, 3 parts of white carbon black, 2 parts of fumed silica, 1.5 parts of zinc oxide, 2.5 parts of age resister, 2 parts of heat stabilizer, and 2 parts of crosslinking agent.
On the basis of the above scheme and as a preferable scheme of the scheme: the fluorosilicone rubber is FVMQ fluorosilicone rubber.
On the basis of the above scheme and as a preferable scheme of the scheme: the silane coupling agent is KH 570.
On the basis of the above scheme and as a preferable scheme of the scheme: the cross-linking agent is a mixture of sulfur and zinc methacrylate.
On the basis of the above scheme and as a preferable scheme of the scheme: the cross-linking agent is a mixture of sulfur and zinc methacrylate, and the mass ratio of the sulfur to the zinc methacrylate is 1: 0.3 to 0.37.
On the basis of the above scheme and as a preferable scheme of the scheme: the anti-aging agent is an anti-aging agent 4010.
On the basis of the above scheme and as a preferable scheme of the scheme: the heat stabilizer is stearic acid, and the zinc oxide is nano zinc oxide.
Compared with the prior art, the invention has the outstanding and beneficial technical effects that: compared with the traditional window wiper, the window wiper is excellent in aging resistance, difficult to age and harden and crack, and greatly prolonged in service life; in addition, compared with the traditional window scraper, the friction force between the window scraper and the glass surface is obviously reduced, the window scraper is more labor-saving to use, is smooth to move, can clean the glass surface more thoroughly, and is not easy to cause the problem of residue at unsmooth positions; scrape for traditional window, this application adopts a composite construction, satisfies the soft requirement that the window scraped simultaneously and surperficial wear-resisting to the coating can reduce the window and scrape the sliding friction with the glass surface, thereby on guaranteeing that glass is clean more abundant basis, improves the life that the window scraped by a wide margin.
Detailed Description
To make the objects, technical solutions and advantages of the present application clearer, the technical solutions will be clearly and completely described below with reference to the embodiments,
example one
A production process of an aging-resistant window wiper comprises the following steps:
s1: preparing raw materials: 60 parts of methyl vinyl silicone rubber, 25 parts of fluorosilicone rubber, 6 parts of hydroxyl-terminated polydimethylsiloxane, 0.7 part of silane coupling agent, 0.12 part of toluene diisocyanate, 3 parts of white carbon black, 2 parts of fumed silica, 1.5 parts of zinc oxide, 2.5 parts of anti-aging agent, 2 parts of heat stabilizer and 2 parts of crosslinking agent;
s2: mixing: carrying out high-speed mixing on methyl vinyl silicone rubber and fluorosilicone rubber at the temperature of 115 ℃ for 3min, then transferring the mixture into a 10 ℃ environment for cooling treatment for 3h to obtain mixed silicone rubber, feeding the mixed silicone rubber into an internal mixer, adding hydroxyl-terminated polydimethylsiloxane, a silane coupling agent, white carbon black, fumed silica, zinc oxide, an anti-aging agent and a heat stabilizer, and mixing for 10min at the temperature of 100 ℃; then continuously mixing for 8min at the temperature of 115 ℃; then cooling to 105 ℃, adding toluene diisocyanate and a cross-linking agent, continuing to mix for 7min, and then mixing at a high speed for 6min at 140 ℃; then discharging rubber, turning over by an open mill, then discharging and cooling;
s3: extruding the rubber material mixed in the step S2 into strips through a screw extruder;
s4: sending the extruded semi-finished product into an oven at 80 ℃ for preheating; placing the preheated semi-finished product extruded into strips into a vulcanization mold, and vulcanizing for 4min at the temperature of 170 ℃ and the pressure of 160kgf/cm 2;
s5: cooling after vulcanization to obtain a semi-finished product of the window wiper;
s6: and coating a coating layer on the surface of the semi-finished window wiper to obtain a finished window wiper.
The production steps of the coating layer are as follows:
a: preparing raw materials, namely preparing 30 parts of chloroprene rubber, 30 parts of ethylene propylene diene monomer, 8 parts of silicon micropowder, 3 parts of boron nitride, 15 parts of nitrile rubber, 6 parts of nano graphene, 2 parts of talcum powder, 1 part of cyclohexanone oxime, 5 parts of linoleic acid, 10 parts of a composite stabilizer, 5 parts of a cross-linking agent, 6 parts of hydroxyl-terminated polydimethylsiloxane and 0.7 part of a silane coupling agent;
b: mixing, namely mixing chloroprene rubber, ethylene propylene diene monomer rubber, silicon micropowder, boron nitride, nitrile rubber, nano graphene, talcum powder, cyclohexanone oxime, linoleic acid and a composite stabilizer, feeding the mixed rubber into an internal mixer, adding a cross-linking agent, hydroxyl-terminated polydimethylsiloxane and a silane coupling agent, continuously mixing for 7min, and then mixing at a high speed for 6min at the temperature of 140 ℃; then discharging rubber, turning over by an open mill, then discharging and cooling;
c: obtaining a semi-finished product of the coating layer.
Coating the obtained semi-finished product of the coating layer on the surface of the semi-finished product of the window wiper, and sending the semi-finished product of the coating layer into an oven at 80 ℃ for preheating; preheating, placing into a vulcanization mold, and vulcanizing at 170 deg.C and 160kgf/cm2 for 5 min; and cooling to obtain the finished window wiper product.
In the present embodiment, the fluorosilicone rubber is further preferably FVMQ fluorosilicone rubber.
In the present embodiment, the silane coupling agent is further preferably KH 570.
In a further preferred embodiment, the crosslinking agent is a mixture of sulfur and zinc methacrylate.
In this embodiment, it is further preferable that the cross-linking agent is a mixture of sulfur and zinc methacrylate, and the mass ratio of sulfur to zinc methacrylate is 1: 0.3 to 0.37.
In this embodiment, the antioxidant is preferably an antioxidant 4010.
In a further preferred embodiment of the present invention, the heat stabilizer is stearic acid, and the zinc oxide is nano zinc oxide.
Example two
A production process of an aging-resistant window wiper comprises the following steps:
s1: preparing raw materials: 65 parts of methyl vinyl silicone rubber, 27.5 parts of fluorosilicone rubber, 7 parts of hydroxyl-terminated polydimethylsiloxane, 0.8 part of silane coupling agent, 0.13 part of toluene diisocyanate, 4 parts of white carbon black, 2.5 parts of fumed silica, 1.65 parts of zinc oxide, 3.5 parts of anti-aging agent, 3 parts of heat stabilizer and 3 parts of crosslinking agent;
s2: mixing: mixing methyl vinyl silicone rubber and fluorosilicone rubber at 120 ℃ for 4min at a high speed, then cooling the mixture for 4h in an environment at 15 ℃ to obtain mixed silicone rubber, feeding the mixed silicone rubber into an internal mixer, adding hydroxyl-terminated polydimethylsiloxane, a silane coupling agent, white carbon black, fumed silica, zinc oxide, an anti-aging agent and a heat stabilizer, and mixing for 12.5min at 102.5 ℃; then continuously mixing for 10min at the temperature of 117 ℃; then cooling to the temperature of 1.65 ℃, adding toluene diisocyanate and a cross-linking agent, continuing to mix for 8min, and then mixing at a high speed for 7min at the temperature of 150 ℃; then discharging rubber, turning over by an open mill, then discharging and cooling;
s3: extruding the rubber material mixed in the step S2 into strips through a screw extruder;
s4: sending the extruded semi-finished product into an oven at 82 ℃ for preheating; placing the preheated semi-finished product extruded into strips into a vulcanization mold, and vulcanizing at the pressure of 170kgf/cm2 and the temperature of 175 ℃ for 6 min;
s5: cooling after vulcanization to obtain a semi-finished product of the window wiper;
s6: and coating a coating layer on the surface of the semi-finished window wiper to obtain a finished window wiper.
The production steps of the coating layer are as follows:
a: preparing raw materials, namely preparing 35 parts of chloroprene rubber, 35 parts of ethylene propylene diene monomer, 11 parts of silicon micropowder, 4 parts of boron nitride, 17 parts of nitrile rubber, 8 parts of nano graphene, 2.5 parts of talcum powder, 1.5 parts of cyclohexanone oxime, 6.5 parts of linoleic acid, 12.5 parts of a composite stabilizer, 7 parts of a cross-linking agent, 7 parts of hydroxyl-terminated polydimethylsiloxane and 0.8 part of a silane coupling agent;
b: mixing, namely mixing chloroprene rubber, ethylene propylene diene monomer rubber, silicon micropowder, boron nitride, nitrile rubber, nano graphene, talcum powder, cyclohexanone oxime, linoleic acid and a composite stabilizer, feeding the mixed rubber into an internal mixer, adding a cross-linking agent, hydroxyl-terminated polydimethylsiloxane and a silane coupling agent, continuously mixing for 8min, and then mixing at a high speed for 7min at the temperature of 147 ℃; then discharging rubber, turning over by an open mill, then discharging and cooling;
c: obtaining a semi-finished product of the coating layer.
Coating the obtained semi-finished product of the coating layer on the surface of the semi-finished product of the window wiper, and sending the semi-finished product of the coating layer into an oven at 82 ℃ for preheating; preheating, placing into a vulcanization mold, and vulcanizing at a pressure of 170kgf/cm2 and a temperature of 175 deg.C for 7 min; and cooling to obtain the finished window wiper product.
In the present embodiment, the fluorosilicone rubber is further preferably FVMQ fluorosilicone rubber.
In the present embodiment, the silane coupling agent is further preferably KH 570.
In a further preferred embodiment, the crosslinking agent is a mixture of sulfur and zinc methacrylate.
In this embodiment, it is further preferable that the cross-linking agent is a mixture of sulfur and zinc methacrylate, and the mass ratio of sulfur to zinc methacrylate is 1: 0.3 to 0.37.
In this embodiment, the antioxidant is preferably an antioxidant 4010.
In a further preferred embodiment of the present invention, the heat stabilizer is stearic acid, and the zinc oxide is nano zinc oxide.
EXAMPLE III
A production process of an aging-resistant window wiper comprises the following steps:
s1: preparing raw materials: 70 parts of methyl vinyl silicone rubber, 30 parts of fluorosilicone rubber, 8 parts of hydroxyl-terminated polydimethylsiloxane, 0.9 part of silane coupling agent, 0.15 part of toluene diisocyanate, 5 parts of white carbon black, 3 parts of fumed silica, 1.8 parts of zinc oxide, 4.5 parts of anti-aging agent, 4 parts of heat stabilizer and 4 parts of crosslinking agent;
s2: mixing: carrying out high-speed mixing on methyl vinyl silicone rubber and fluorosilicone rubber at 125 ℃ for 5min, then transferring the mixture into an environment of 20 ℃ for cooling treatment for 5h to obtain mixed silicone rubber, feeding the mixed silicone rubber into an internal mixer, adding hydroxyl-terminated polydimethylsiloxane, a silane coupling agent, white carbon black, fumed silica, zinc oxide, an anti-aging agent and a heat stabilizer, and mixing for 15min at 105 ℃; then continuously mixing for 12min at the temperature of 120 ℃; then cooling to 108 ℃, adding toluene diisocyanate and a cross-linking agent, continuing to mix for 10min, and then mixing at a high speed for 8min at a temperature of 155 ℃; then discharging rubber, turning over by an open mill, then discharging and cooling;
s3: extruding the rubber material mixed in the step S2 into strips through a screw extruder;
s4: sending the extruded semi-finished product into an oven at 85 ℃ for preheating; placing the preheated semi-finished product extruded into strips into a vulcanization mold, and vulcanizing at 180 ℃ for 8min under the pressure of 180kgf/cm 2;
s5: cooling after vulcanization to obtain a semi-finished product of the window wiper;
s6: and coating a coating layer on the surface of the semi-finished window wiper to obtain a finished window wiper.
The production steps of the coating layer are as follows:
a: preparing raw materials, namely preparing 40 parts of chloroprene rubber, 40 parts of ethylene propylene diene monomer, 14 parts of silicon micropowder, 5 parts of boron nitride, 20 parts of nitrile rubber, 10 parts of nano graphene, 3 parts of talcum powder, 2 parts of cyclohexanone oxime, 8 parts of linoleic acid, 15 parts of a composite stabilizer, 10 parts of a cross-linking agent, 8 parts of hydroxyl-terminated polydimethylsiloxane and 0.9 part of a silane coupling agent;
b: mixing, namely mixing chloroprene rubber, ethylene propylene diene monomer rubber, silicon micropowder, boron nitride, nitrile rubber, nano graphene, talcum powder, cyclohexanone oxime, linoleic acid and a composite stabilizer, feeding the mixed rubber into an internal mixer, adding a cross-linking agent, hydroxyl-terminated polydimethylsiloxane and a silane coupling agent, continuously mixing for 10min, and then mixing at a high speed for 8min at a temperature of 155 ℃; then discharging rubber, turning over by an open mill, then discharging and cooling;
c: obtaining a semi-finished product of the coating layer.
Coating the obtained semi-finished product of the coating layer on the surface of the semi-finished product of the window wiper, and sending the semi-finished product of the coating layer into an oven at 85 ℃ for preheating; preheating, placing into a vulcanization mold, and vulcanizing at 180 deg.C under 180kgf/cm2 for 10 min; and cooling to obtain the finished window wiper product.
In the present embodiment, the fluorosilicone rubber is further preferably FVMQ fluorosilicone rubber.
In the present embodiment, the silane coupling agent is further preferably KH 570.
In a further preferred embodiment, the crosslinking agent is a mixture of sulfur and zinc methacrylate.
In this embodiment, it is further preferable that the cross-linking agent is a mixture of sulfur and zinc methacrylate, and the mass ratio of sulfur to zinc methacrylate is 1: 0.3 to 0.37.
In this embodiment, the antioxidant is preferably an antioxidant 4010.
In a further preferred embodiment of the present invention, the heat stabilizer is stearic acid, and the zinc oxide is nano zinc oxide.
The following performance tests (with reference to standard HG/T2579-94) were performed on the window wiper obtained in the first to third examples of the present invention and the general rubber window wiper, and the test results are shown in table 1:
TABLE 1
Figure BDA0002664173240000101
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (10)

1. The production process of the aging-resistant window wiper is characterized by comprising the following steps:
s1: preparing raw materials: 60-70 parts of methyl vinyl silicone rubber, 25-30 parts of fluorosilicone rubber, 6-8 parts of hydroxyl-terminated polydimethylsiloxane, 0.7-0.9 part of silane coupling agent, 0.12-0.15 part of toluene diisocyanate, 3-5 parts of white carbon black, 2-3 parts of fumed silica, 1.5-1.8 parts of zinc oxide, 2.5-4.5 parts of anti-aging agent, 2-4 parts of heat stabilizer and 2-4 parts of crosslinking agent;
s2: mixing: carrying out high-speed mixing on methyl vinyl silicone rubber and fluorosilicone rubber at the temperature of 115-125 ℃ for 3-5min, then transferring the mixture into an environment of 10-20 ℃ for cooling treatment for 3-5h to obtain mixed silicone rubber, feeding the mixed silicone rubber into an internal mixer, adding hydroxyl-terminated polydimethylsiloxane, a silane coupling agent, white carbon black, fumed silica, zinc oxide, an anti-aging agent and a heat stabilizer, and mixing for 10-15 min at the temperature of 100-105 ℃; then continuously mixing for 8-12 min at the temperature of 115-120 ℃; then cooling to the temperature of 105-108 ℃, adding toluene diisocyanate and a cross-linking agent, continuously mixing for 7-10 min, and then mixing at a high speed of 140-155 ℃ for 6-8 min; then discharging rubber, turning over by an open mill, then discharging and cooling;
s3: extruding the rubber material mixed in the step S2 into strips through a screw extruder;
s4: feeding the extruded semi-finished product into an oven at 80-85 ℃ for preheating; then placing the preheated semi-finished product extruded into strips into a vulcanization mold, and vulcanizing for 4-8min at the pressure of 160-;
s5: cooling after vulcanization to obtain a semi-finished product of the window wiper;
s6: and coating a coating layer on the surface of the semi-finished window wiper product to obtain a finished window wiper product.
2. The process of claim 1, wherein the process comprises the following steps: the production steps of the coating layer are as follows:
a: preparing raw materials, namely preparing 30-40 parts of chloroprene rubber, 30-40 parts of ethylene propylene diene monomer, 8-14 parts of silicon micropowder, 3-5 parts of boron nitride, 15-20 parts of nitrile rubber, 6-10 parts of nano graphene, 2-3 parts of talcum powder, 1-2 parts of cyclohexanone oxime, 5-8 parts of linoleic acid, 10-15 parts of a composite stabilizer, 5-10 parts of a cross-linking agent, 6-8 parts of hydroxyl-terminated polydimethylsiloxane and 0.7-0.9 part of a silane coupling agent;
b: mixing, namely mixing chloroprene rubber, ethylene propylene diene monomer rubber, silica powder, boron nitride, nitrile rubber, nano graphene, talcum powder, cyclohexanone oxime, linoleic acid and a composite stabilizer, feeding the mixed rubber into an internal mixer, adding a cross-linking agent, hydroxyl-terminated polydimethylsiloxane and a silane coupling agent, continuously mixing for 7-10 min, and then mixing at a high speed of 140-155 ℃ for 6-8 min; then discharging rubber, turning over by an open mill, then discharging and cooling;
c: obtaining a semi-finished product of the coating layer.
3. The process of claim 2, wherein the process comprises the following steps: coating the obtained semi-finished product of the coating layer on the surface of the semi-finished product of the window wiper, and sending the semi-finished product of the coating layer into an oven at 80-85 ℃ for preheating; preheating, placing into a vulcanization mold, and vulcanizing at the pressure of 160-180kgf/cm2 and the temperature of 170-180 ℃ for 5-10 min; and cooling to obtain the finished window wiper product.
4. The process of claim 1, wherein the process comprises the following steps: the raw materials in step S1 are 60 parts of methyl vinyl silicone rubber, 25 parts of fluorosilicone rubber, 6 parts of hydroxyl-terminated polydimethylsiloxane, 0.7 part of silane coupling agent, 0.12 part of toluene diisocyanate, 3 parts of white carbon black, 2 parts of fumed silica, 1.5 parts of zinc oxide, 2.5 parts of age resister, 2 parts of heat stabilizer, and 2 parts of crosslinking agent.
5. The process of claim 1, wherein the process comprises the following steps: the fluorosilicone rubber is FVMQ fluorosilicone rubber.
6. The process of claim 1, wherein the process comprises the following steps: the silane coupling agent is KH 570.
7. The process of claim 1, wherein the process comprises the following steps: the cross-linking agent is a mixture of sulfur and zinc methacrylate.
8. The process of claim 1, wherein the process comprises the following steps: the cross-linking agent is a mixture of sulfur and zinc methacrylate, and the mass ratio of the sulfur to the zinc methacrylate is 1: 0.3 to 0.37.
9. The process of claim 1, wherein the process comprises the following steps: the anti-aging agent is an anti-aging agent 4010.
10. The process of claim 1, wherein the process comprises the following steps: the heat stabilizer is stearic acid, and the zinc oxide is nano zinc oxide.
CN202010913467.0A 2020-09-03 2020-09-03 Production process of anti-aging window wiper Pending CN112238585A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001151087A (en) * 1999-11-29 2001-06-05 Yokohama Rubber Co Ltd:The Wiper blade
US20030138655A1 (en) * 1999-11-29 2003-07-24 Jiro Watanabe Wiper blade
CN107337823A (en) * 2017-08-07 2017-11-10 安徽凤凰松包装有限公司 A kind of age inhibiting abrasive rubber
CN108129842A (en) * 2017-12-28 2018-06-08 长沙无道工业设计有限公司 A kind of silica gel and preparation method thereof
CN108944810A (en) * 2018-07-16 2018-12-07 嘉兴奕霞汽配科技有限公司 Wiper doctor-bar and wiper
CN111534105A (en) * 2020-04-02 2020-08-14 浙江翔宇密封件有限公司 Anti-aging silicone rubber sealing material for high-speed rail sealing element and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001151087A (en) * 1999-11-29 2001-06-05 Yokohama Rubber Co Ltd:The Wiper blade
US20030138655A1 (en) * 1999-11-29 2003-07-24 Jiro Watanabe Wiper blade
CN107337823A (en) * 2017-08-07 2017-11-10 安徽凤凰松包装有限公司 A kind of age inhibiting abrasive rubber
CN108129842A (en) * 2017-12-28 2018-06-08 长沙无道工业设计有限公司 A kind of silica gel and preparation method thereof
CN108944810A (en) * 2018-07-16 2018-12-07 嘉兴奕霞汽配科技有限公司 Wiper doctor-bar and wiper
CN111534105A (en) * 2020-04-02 2020-08-14 浙江翔宇密封件有限公司 Anti-aging silicone rubber sealing material for high-speed rail sealing element and preparation method thereof

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