CN107245157A - A kind of preparation method of snap joint sealing ring - Google Patents

A kind of preparation method of snap joint sealing ring Download PDF

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Publication number
CN107245157A
CN107245157A CN201710538953.7A CN201710538953A CN107245157A CN 107245157 A CN107245157 A CN 107245157A CN 201710538953 A CN201710538953 A CN 201710538953A CN 107245157 A CN107245157 A CN 107245157A
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parts
sealing ring
water
added
minutes
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聂志强
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Wuhe Fuqiangxin Metal Products Co Ltd
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Wuhe Fuqiangxin Metal Products Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/26—Cellulose ethers
    • C08L1/28—Alkyl ethers
    • C08L1/284—Alkyl ethers with hydroxylated hydrocarbon radicals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber
    • C08L7/02—Latex
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2307/00—Characterised by the use of natural rubber
    • C08J2307/02—Latex
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
    • C08J2491/06—Waxes
    • 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
    • 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
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four 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
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

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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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Sealing Material Composition (AREA)

Abstract

A kind of method that utilization natural plant gum prepares sealing ring, first prepares plant gum powder, is 1 by gained plant gum powder and Heveatex ratio:3, it is well mixed that rubber cement is made；Cotton sail cloth impregnation 20~40 minutes in rubber cement will be dried, (roller speed is than being 1 through two roll calender:1, roll spacing is 3mm) extruding even uniform after be dried to obtain adhesive plaster；Adhesive plaster is paved into after 2~3 layers by specification with 45° angle severing, compacting is rolled to be put into sealing ring mould, die inside wall scribbles wear-resisting glue, vulcanizes 30~45 minutes under conditions of 145~155 DEG C, 8~10 MPa, by the sealing ring of shaping, it is put into 35 portions of hardening agents and soaks 2 hours, bubble in low pressure removing system, after drying, coating of wax is smeared using cotton sail cloth, it can be fully cured after being heat-treated 4h at 100 DEG C, you can.This law sealing ring performance is stable, is difficult to be swelled in media as well, thermal pinch is small, while enhancing tensile strength, elongation and tearing toughness.

Description

A kind of preparation method of snap joint sealing ring
Technical field：
The present invention relates to a kind of sealing ring, and in particular to a kind of preparation method method of snap joint sealing ring.
Background technology：
The circular cowling that sealing ring is made up of one or several parts, be fixed on a lasso of bearing or packing ring and with it is another One lasso or washer contacts form narrow labyrinth clearance, prevent lubricating oil from spilling and foreign object intrusion.Sealing ring is a kind of section For circular rubber ring, because its section is O-shaped, therefore O-ring seal is called.
Existing sealing ring has a rubber seal and metal o-ring, and metal o-ring has very strong characteristic, without appointing What rubber constituent, and rubber seal is generally rubber chemistry composition composition, preparation process influences very big to staff, while dirty Contaminate environment.
The content of the invention：
The technical problems to be solved by the invention are to overcome the defect of prior art, and there is provided a kind of snap joint sealing ring Preparation method.
The technical problems to be solved by the invention are realized using following technical scheme.
A kind of preparation method of snap joint sealing ring, it is characterised in that：
100-120 parts of soybean protein is taken, protein isolate 8%-20%, urea 15%-17%, polyphosphoric acids from soybean Sodium 1%-10%, urea is dispersed in water, and is mixed and made into urea liquid, adds albumen and mixture, 1-2 is stirred at normal temperatures Hour, 5-7 parts of coupling agent is added, continues to stir 2-3 hours, it is high finally by the 15-20 parts of additions of 50% sodium hydrate aqueous solution Temperature stirring 20 minutes, temperature control is at 90-95 DEG C；
30-40 parts of toughener and 2-5 parts of epoxy organosilicon, 0~80 DEG C of temperature are slowly added under stirring and/or ultrasonication The lower reaction of degree 0.1~12 hour, after reaction terminates, is dehydrated by vaporizing extract process, by eluting, granulating repeatedly, dried；
Grain will be dried to mix for 15-20 part with ethyl cyanoacetate, beaten, 15-20 parts of 50% sodium hydrate aqueous solution of addition with 100-130 parts of water mixing, heating adds 30-50 parts of cornstarch after being added 2 hours after 20 minutes, refines 2 hours, obtain glue Liquid；
30-140 parts of water intaking, 10-40 parts of hydrophilic chemicals, 2-30 parts of urea, inorganic or 2-30 parts of organic acid, are utilized More than 50 DEG C of hot water or steam is mixed with glue, inorganic base and is incubated 30 minutes to 1 hour more than 50 DEG C, makes glue Abundant water swelling, so that its close molecular structure be pulled open and become bulk, then adds required hydrophilic chemistries thing Matter and inorganic or organic acid, are 0.5-4 hours in reaction at 50-100 DEG C, produce the aqueous chemical modification plant for 20-60% Film, after extrusion, drying, crushing, produce it is aqueous be less than 10% quick-dissolving chemically modified vegetable gum powder；
It is 1 by gained plant gum powder and Heveatex ratio:3, it is well mixed that rubber cement is made；Will dry cotton sail cloth in Impregnation 20~40 minutes in rubber cement, through two roll calender, (roller speed is than being 1:1, roll spacing is 3mm) it is dry after extruding even uniform To adhesive plaster；Adhesive plaster is paved into after 2~3 layers by specification with 45° angle severing, compacting is rolled and is put into sealing ring mould, die inside Wall scribbles wear-resisting glue, vulcanizes 30~45- minutes under conditions of 145~155 DEG C, 8~10-MPa, by the sealing of shaping Circle, is put into 35 portions of hardening agents and soaks 2 hours, the bubble in low pressure removing system, after drying, and one is smeared using cotton sail cloth Layer wax, can be fully cured after being heat-treated 4h at 100 DEG C, you can.
Described wear-resisting glue is prepared from including following components：N330-23-25 parts of carbon black, dioctyl adipate DOA- 15-17 parts, 6-8 parts of zinc oxide, 7-9 parts of stearic acid, 10-13 parts of age resistor, DCP-4-6 parts of vulcanizing agent, vulcanization aid TAIC-5- 8 parts, 12-18 parts of hydroxypropyl cellulose, 7-15 parts of pulullan polysaccharide, 13-16 parts of nano silicon.
Described wear-resisting glue, which comprises the following steps, to be prepared from：
Dioctyl adipate DOA is dissolved by heating in 70 DEG C of hot bath, the stirring of stearic acid mixing and emulsifying is then added Uniformly, carbon black is taken into container, is added zinc oxide, is mixed evenly；Mixture is used into emulsification in 60~80 DEG C of water-baths Device stirs, regulation emulsification stirring speed to 6000r/min, turns down rotating speed to 3000r/min after 5min, continues to stir 30min, when temperature is down to 8 DEG C, adds 2 age resistor, then adds vulcanizing agent DCP, vulcanization aid, is dehydrated 15min, centrifugation point From, hydroxypropyl cellulose is added, drying at room temperature obtains solid powder, by pulullan polysaccharide, nano silicon, ultrasound After vibration dispersion is uniform, centrifuges and remove big particulate, drying at room temperature obtains particle, in the water that particle is added to 2 times, mix Close, 200 DEG C of heating 30min obtain wear-resisting glue.
Described hardening agent is prepared from including following components：Including 30 parts of intensity modifying agents：30%-40% acrylic acid fourths Ester, 30-40% ethyl acetate, remaining is water；
5 parts of form retention agents：Ethyl acetate 15-25%, pentaerythrite 30-35%, 15%-20% parts of paraffin, remaining is Water.
Described hardening agent, which comprises the following steps, to be prepared from：Butyl acrylate, ethyl acetate and water are sequentially added, machinery It is uniformly mixed, 1 obtains form retention agent；
Paraffin and ethyl acetate is taken to heat mixing, vaccum dewatering 5 minutes；Pentaerythrite is added, low pressure after being well mixed Bubble in removing system, can be fully cured after being heat-treated 4h at 100 DEG C；Solidfied material is mixed with 60 DEG C of temperature water, Stirring 1 hour, as form retention agent；
Form retention agent is mixed with intensity modifying agent, 60 DEG C are heated 1 hour, and 30 DEG C cool down 1 hour, and 90 DEG C add 5 points Clock, you can.
Described wax is that 90% paraffin and 10% age resistor are mixed.
Beneficial effects of the present invention：Using vegetable rubber made from the formula, lightweight, quality is good, cheap, anti- Ageing properties are good, durable in use, and performance is stable, is difficult to be swelled in media as well, thermal pinch (Joule effect) is small, strengthen simultaneously Tensile strength, elongation and tearing toughness.This kind of elastomeric material intensity is high simultaneously, good toughness, it is not easy to be damaged easily, , can be good with product hermeticity made from this kind of elastomeric material and its anti-wear performance is splendid, market uses wide, natural plant gum dirt Dye is small, and great role is played to environmental protection, deep to be favored by vast chemical enterprise.
Embodiment：
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1：A kind of preparation method of snap joint sealing ring,
100 parts of soybean protein is taken, protein isolate 8%-20%, urea 15%-17%, sodium polyphosphate from soybean 1%-10%, urea is dispersed in water, and is mixed and made into urea liquid, adds albumen and mixture, 1-2 is stirred at normal temperatures small When, 5 parts of coupling agent is added, continues to stir 2-3 hours, finally by 50% sodium hydrate aqueous solution, 15 parts of additions, high-temperature stirring 20 minutes, temperature control was at 90-95 DEG C；
It is slowly added under stirring and/or ultrasonication at a temperature of 2 parts, 0~80 DEG C of 30 parts of toughener and epoxy organosilicon Reaction 0.1~12 hour, after reaction terminates, is dehydrated by vaporizing extract process, by eluting, granulating repeatedly, is dried；
Grain will be dried to mix for 15 parts with ethyl cyanoacetate, beat, add 50% sodium hydrate aqueous solution, 15 parts and 100 parts water Mixing, heating adds 30 parts of cornstarch after being added 2 hours after 20 minutes, refines 2 hours, obtain glue；
30 parts of water intaking, 10 parts of hydrophilic chemicals, 2 parts of urea, inorganic or 2 parts of organic acid, utilize more than 50 DEG C heat Water or steam are mixed with glue, inorganic base and are incubated 30 minutes to 1 hour more than 50 DEG C, glue is fully absorbed water swollen It is swollen, so that its close molecular structure be pulled open and become bulk, hydrophilic chemicals needed for then adding and it is inorganic or Organic acid, is 0.5-4 hours in reaction at 50-100 DEG C, the aqueous chemically modified vegetable gum piece for 20-60% is produced, through extruding It is expanded, dry, crush after, produce it is aqueous be less than 10% quick-dissolving chemically modified vegetable gum powder；
It is 1 by gained plant gum powder and Heveatex ratio:3, it is well mixed that rubber cement is made；Will dry cotton sail cloth in Impregnation 20~40 minutes in rubber cement, through two roll calender, (roller speed is than being 1:1, roll spacing is 3mm) it is dry after extruding even uniform To adhesive plaster；Adhesive plaster is paved into after 2~3 layers by specification with 45° angle severing, compacting is rolled and is put into sealing ring mould, die inside Wall scribbles wear-resisting glue, vulcanizes 30~45- minutes under conditions of 145~155 DEG C, 8~10-MPa, by the sealing of shaping Circle, is put into 35 portions of hardening agents and soaks 2 hours, the bubble in low pressure removing system, after drying, and one is smeared using cotton sail cloth Layer wax, can be fully cured after being heat-treated 4h at 100 DEG C, you can.
Wear-resisting glue is prepared from including following components：N330-23 parts of carbon black, DOA-15 parts of dioctyl adipate, oxidation It is 6 parts of zinc, 7 parts of stearic acid, 10 parts of age resistor, DCP-4 parts of vulcanizing agent, TAIC-5 parts of vulcanization aid, 12 parts of hydroxypropyl cellulose, general Shandong orchid 7 parts of polysaccharide, 13 parts of nano silicon,.
Wear-resisting glue, which comprises the following steps, to be prepared from：
Dioctyl adipate DOA is dissolved by heating in 70 DEG C of hot bath, the stirring of stearic acid mixing and emulsifying is then added Uniformly, carbon black is taken into container, is added zinc oxide, is mixed evenly；Mixture is used into emulsification in 60~80 DEG C of water-baths Device stirs, regulation emulsification stirring speed to 6000r/min, turns down rotating speed to 3000r/min after 5min, continues to stir 30min, when temperature is down to 8 DEG C, adds 2 age resistor, then adds vulcanizing agent DCP, vulcanization aid, is dehydrated 15min, centrifugation point From, hydroxypropyl cellulose is added, drying at room temperature obtains solid powder, by pulullan polysaccharide, nano silicon, ultrasound After vibration dispersion is uniform, centrifuges and remove big particulate, drying at room temperature obtains particle, in the water that particle is added to 2 times, mix Close, 200 DEG C of heating 30min obtain wear-resisting glue.
Hardening agent is prepared from including following components：Including 30 parts of intensity modifying agents：30% butyl acrylate, 30% acetic acid Ethyl ester, remaining is water；
5 parts of form retention agents：Ethyl acetate 15%, pentaerythrite 30%, 15% part of paraffin, remaining is water.
Hardening agent, which comprises the following steps, to be prepared from：Butyl acrylate, ethyl acetate and water are sequentially added, mechanical agitation is mixed Close uniform, 1 obtains form retention agent；
Paraffin and ethyl acetate is taken to heat mixing, vaccum dewatering 5 minutes；Pentaerythrite is added, low pressure after being well mixed Bubble in removing system, can be fully cured after being heat-treated 4h at 100 DEG C；Solidfied material is mixed with 60 DEG C of temperature water, Stirring 1 hour, as form retention agent；
Form retention agent is mixed with intensity modifying agent, 60 DEG C are heated 1 hour, and 30 DEG C cool down 1 hour, and 90 DEG C add 5 points Clock, you can.
Wax is that 90% paraffin and 10% age resistor are mixed.
Through experiment, sealing ring prepared by this law is contrasted with existing sealing ring：
Existing sealing ring：Product hardness:HS85 ± 2 ° A operating temperatures:TPU:- 40~+80 DEG C of CPU:- 40~+120 DEG C of works Make pressure:≤32Mpa；
This law sealing ring：Product hardness:HS110 ± 2 ° A operating temperatures:TPU:- 49~+86 DEG C of CPU:- 40~+120 DEG C Operating pressure:≤36Mpa.
This law sealing ring performance is stable, is difficult to be swelled in media as well, thermal pinch (Joule effect) is small, enhances simultaneously Tensile strength, elongation and tearing toughness.
Embodiment 2：A kind of preparation method of snap joint sealing ring,
120 parts of soybean protein is taken, protein isolate 8%-20%, urea 15%-17%, sodium polyphosphate from soybean 1%-10%, urea is dispersed in water, and is mixed and made into urea liquid, adds albumen and mixture, 1-2 is stirred at normal temperatures small When, 7 parts of coupling agent is added, continues to stir 2-3 hours, finally by 50% sodium hydrate aqueous solution, 20 parts of additions, high-temperature stirring 20 minutes, temperature control was at 90-95 DEG C；
It is slowly added under stirring and/or ultrasonication at a temperature of 5 parts, 0~80 DEG C of 40 parts of toughener and epoxy organosilicon Reaction 0.1~12 hour, after reaction terminates, is dehydrated by vaporizing extract process, by eluting, granulating repeatedly, is dried；
Grain will be dried to mix for 20 parts with ethyl cyanoacetate, beat, add 50% sodium hydrate aqueous solution, 20 parts and 130 parts water Mixing, heating adds 50 parts of cornstarch after being added 2 hours after 20 minutes, refines 2 hours, obtain glue；
140 parts of water intaking, 40 parts of hydrophilic chemicals, 30 parts of urea, inorganic or 30 parts of organic acid, utilize more than 50 DEG C Hot water or steam are mixed with glue, inorganic base and are incubated 30 minutes to 1 hour more than 50 DEG C, glue is fully absorbed water swollen It is swollen, so that its close molecular structure be pulled open and become bulk, hydrophilic chemicals needed for then adding and it is inorganic or Organic acid, is 0.5-4 hours in reaction at 50-100 DEG C, the aqueous chemically modified vegetable gum piece for 20-60% is produced, through extruding It is expanded, dry, crush after, produce it is aqueous be less than 10% quick-dissolving chemically modified vegetable gum powder；
It is 1 by gained plant gum powder and Heveatex ratio:3, it is well mixed that rubber cement is made；Will dry cotton sail cloth in Impregnation 20~40 minutes in rubber cement, through two roll calender, (roller speed is than being 1:1, roll spacing is 3mm) it is dry after extruding even uniform To adhesive plaster；Adhesive plaster is paved into after 2~3 layers by specification with 45° angle severing, compacting is rolled and is put into sealing ring mould, die inside Wall scribbles wear-resisting glue, vulcanizes 30~45- minutes under conditions of 145~155 DEG C, 8~10-MPa, by the sealing of shaping Circle, is put into 35 portions of hardening agents and soaks 2 hours, the bubble in low pressure removing system, after drying, and one is smeared using cotton sail cloth Layer wax, can be fully cured after being heat-treated 4h at 100 DEG C, you can.
Wear-resisting glue is prepared from including following components：N330-25 parts of carbon black, DOA-17 parts of dioctyl adipate, oxidation It is 8 parts of zinc, 9 parts of stearic acid, 13 parts of age resistor, DCP-6 parts of vulcanizing agent, TAIC-8 parts of vulcanization aid, 18 parts of hydroxypropyl cellulose, general Shandong orchid 15 parts of polysaccharide, 16 parts of nano silicon,.
Wear-resisting glue, which comprises the following steps, to be prepared from：
Dioctyl adipate DOA is dissolved by heating in 70 DEG C of hot bath, the stirring of stearic acid mixing and emulsifying is then added Uniformly, carbon black is taken into container, is added zinc oxide, is mixed evenly；Mixture is used into emulsification in 60~80 DEG C of water-baths Device stirs, regulation emulsification stirring speed to 6000r/min, turns down rotating speed to 3000r/min after 5min, continues to stir 30min, when temperature is down to 8 DEG C, adds 2 age resistor, then adds vulcanizing agent DCP, vulcanization aid, is dehydrated 15min, centrifugation point From, hydroxypropyl cellulose is added, drying at room temperature obtains solid powder, by pulullan polysaccharide, nano silicon, ultrasound After vibration dispersion is uniform, centrifuges and remove big particulate, drying at room temperature obtains particle, in the water that particle is added to 2 times, mix Close, 200 DEG C of heating 30min obtain wear-resisting glue.
Hardening agent is prepared from including following components：Including 30 parts of intensity modifying agents：40% butyl acrylate, 40% acetic acid Ethyl ester, remaining is water；
5 parts of form retention agents：Ethyl acetate 25%, pentaerythrite 35%, 20% part of paraffin, remaining is water.
Hardening agent, which comprises the following steps, to be prepared from：Butyl acrylate, ethyl acetate and water are sequentially added, mechanical agitation is mixed Close uniform, 1 obtains form retention agent；
Paraffin and ethyl acetate is taken to heat mixing, vaccum dewatering 5 minutes；Pentaerythrite is added, low pressure after being well mixed Bubble in removing system, can be fully cured after being heat-treated 4h at 100 DEG C；Solidfied material is mixed with 60 DEG C of temperature water, Stirring 1 hour, as form retention agent；
Form retention agent is mixed with intensity modifying agent, 60 DEG C are heated 1 hour, and 30 DEG C cool down 1 hour, and 90 DEG C add 5 points Clock, you can.
Wax is that 90% paraffin and 10% age resistor are mixed.
Existing sealing ring：Product hardness:HS85 ± 2 ° A operating temperatures:TPU:- 40~+80 DEG C of CPU:- 40~+120 DEG C of works Make pressure:≤32Mpa；
This law sealing ring：Product hardness:HS96 ± 2 ° A operating temperatures:TPU:- 50~+90 DEG C of CPU:- 43~+120 DEG C of works Make pressure:≤51Mpa.
This law sealing ring performance is stable, is difficult to be swelled in media as well, thermal pinch (Joule effect) is small, enhances simultaneously Tensile strength, elongation and tearing toughness.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (6)

1. a kind of method that utilization natural plant gum prepares sealing ring, it is characterised in that：
100-120 parts of soybean protein is taken, protein isolate 8%-20%, urea 15%-17%, sodium polyphosphate from soybean 1%-10%, urea is dispersed in water, and is mixed and made into urea liquid, adds albumen and mixture, 1-2 is stirred at normal temperatures small When, 5-7 parts of coupling agent is added, continues to stir 2-3 hours, finally by the 15-20 parts of additions of 50% sodium hydrate aqueous solution, high temperature Stirring 20 minutes, temperature control is at 90-95 DEG C；
It is slowly added under stirring and/or ultrasonication at a temperature of 2-5 parts, 0~80 DEG C of 30-40 parts of toughener and epoxy organosilicon Reaction 0.1~12 hour, after reaction terminates, is dehydrated by vaporizing extract process, by eluting, granulating repeatedly, is dried；
Grain will be dried to mix for 15-20 parts with ethyl cyanoacetate, beat, add 15-20 parts of 50% sodium hydrate aqueous solution and 100- 130 parts of water mixing, heating adds 30-50 parts of cornstarch after being added 2 hours after 20 minutes, refines 2 hours, obtain glue；
30-140 parts of water intaking, 10-40 parts of hydrophilic chemicals, 2-30 parts of urea, inorganic or 2-30 parts of organic acid, utilize 50 DEG C Hot water or steam above is mixed with glue, inorganic base and is incubated 30 minutes to 1 hour more than 50 DEG C, makes glue abundant Water swelling, so that its close molecular structure be pulled open and become bulk, hydrophilic chemicals needed for then adding and Inorganic or organic acid, is 0.5-4 hours in reaction at 50-100 DEG C, produces the aqueous chemically modified vegetable gum piece for 20-60%, After extrusion, drying, crushing, produce it is aqueous be less than 10% quick-dissolving chemically modified vegetable gum powder；
It is 1 by gained plant gum powder and Heveatex ratio:3, it is well mixed that rubber cement is made；Cotton sail cloth will be dried in rubber cement Middle impregnation 20~40 minutes, through two roll calender, (roller speed is than being 1:1, roll spacing is 3mm) extruding even uniform after be dried to obtain glue Cloth；Adhesive plaster is paved into after 2~3 layers by specification with 45° angle severing, compacting is rolled and is put into sealing ring mould, die inside wall is applied There is wear-resisting glue, vulcanize 30~45- minutes under conditions of 145~155 DEG C, 8~10-MPa, by the sealing ring of shaping, put Enter in 35 portions of hardening agents and soak 2 hours, after drying, coating of wax is smeared using cotton sail cloth for the bubble in low pressure removing system, It can be fully cured after being heat-treated 4h at 100 DEG C, you can.
2. the method that a kind of utilization natural plant gum according to claim 1 prepares sealing ring, it is characterised in that：Described is resistance to Mill glue is prepared from including following components：N330-23-25 parts of carbon black, DOA-15-17 parts of dioctyl adipate, zinc oxide 6-8 Part, 7-9 parts of stearic acid, 10-13 parts of age resistor, DCP-4-6 parts of vulcanizing agent, TAIC-5-8 parts of vulcanization aid, hydroxypropyl cellulose 12-18 parts, 7-15 parts of pulullan polysaccharide, 13-16 parts of nano silicon.
3. the method that a kind of utilization natural plant gum according to claim 1 prepares sealing ring, it is characterised in that：Described is resistance to Mill glue, which comprises the following steps, to be prepared from：
Dioctyl adipate DOA is dissolved by heating in 70 DEG C of hot bath, stearic acid mixing and emulsifying is then added and stirs, Carbon black is taken into container, zinc oxide is added, is mixed evenly；Mixture is stirred in 60~80 DEG C of water-baths with emulsifier Uniformly, regulation emulsification stirring speed is turned down rotating speed to 3000r/min after 5min to 6000r/min, continues to stir 30min, treats When temperature is down to 8 DEG C, 2 age resistor are added, vulcanizing agent DCP, vulcanization aid is then added, 15min is dehydrated, centrifuged, then are added Enter hydroxypropyl cellulose, drying at room temperature obtains solid powder, by pulullan polysaccharide, nano silicon, ultrasonic vibration disperses After uniform, centrifuge and remove big particulate, drying at room temperature obtains particle, in the water that particle is added to 2 times, mixing, 200 DEG C 30min is heated, wear-resisting glue is obtained.
4. the method that a kind of utilization natural plant gum according to claim 1 prepares sealing ring, it is characterised in that：Described is strong Agent is prepared from including following components：Including 30 parts of intensity modifying agents：30%-40% butyl acrylates, 30-40% acetic acid second Ester, remaining is water；
5 parts of form retention agents：Ethyl acetate 15-25%, pentaerythrite 30-35%, 15%-20% parts of paraffin, remaining is water.
5. the method that a kind of utilization natural plant gum according to claim 1 prepares sealing ring, it is characterised in that：Described is strong Agent, which comprises the following steps, to be prepared from：Butyl acrylate, ethyl acetate and water are sequentially added, mechanical agitation is well mixed, 1 To form retention agent；
Paraffin and ethyl acetate is taken to heat mixing, vaccum dewatering 5 minutes；Pentaerythrite is added, low pressure is removed after being well mixed Bubble in system, can be fully cured after being heat-treated 4h at 100 DEG C；Solidfied material is mixed with 60 DEG C of temperature water, stirring 1 Hour, as form retention agent；
Form retention agent is mixed with intensity modifying agent, 60 DEG C heat 1 hour, 30 DEG C cool down 1 hour, 90 DEG C add 5 minutes, i.e., Can.
6. the method that a kind of utilization natural plant gum according to claim 1 prepares sealing ring, it is characterised in that：Described wax Paraffin and 10% age resistor for 90% are mixed.
CN201710538953.7A 2017-07-04 2017-07-04 A kind of preparation method of snap joint sealing ring Withdrawn CN107245157A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0945498A1 (en) * 1998-03-23 1999-09-29 Firma Carl Freudenberg A seal assembly with new resin stabilized adhesive composition to bond an insert member to the elastomeric seal material
CN1935848A (en) * 2006-08-25 2007-03-28 甘肃省庆阳长庆井下化工厂 Method for preparing quick-dissolving chemically modified vegetable gum
CN104194699A (en) * 2014-08-26 2014-12-10 安徽神舟飞船胶业有限公司 Formula and preparation process of epoxy resin-soybean protein glue environment-friendly copolymer adhesive
CN106626468A (en) * 2016-12-21 2017-05-10 齐齐哈尔大学 Preparation method of fabric-mixed seal ring employing cement-dipping method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0945498A1 (en) * 1998-03-23 1999-09-29 Firma Carl Freudenberg A seal assembly with new resin stabilized adhesive composition to bond an insert member to the elastomeric seal material
CN1935848A (en) * 2006-08-25 2007-03-28 甘肃省庆阳长庆井下化工厂 Method for preparing quick-dissolving chemically modified vegetable gum
CN104194699A (en) * 2014-08-26 2014-12-10 安徽神舟飞船胶业有限公司 Formula and preparation process of epoxy resin-soybean protein glue environment-friendly copolymer adhesive
CN106626468A (en) * 2016-12-21 2017-05-10 齐齐哈尔大学 Preparation method of fabric-mixed seal ring employing cement-dipping method

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