CN114395173A - Formula and preparation method of high-temperature-resistant rubber sealing ring - Google Patents
Formula and preparation method of high-temperature-resistant rubber sealing ring Download PDFInfo
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- CN114395173A CN114395173A CN202111514452.8A CN202111514452A CN114395173A CN 114395173 A CN114395173 A CN 114395173A CN 202111514452 A CN202111514452 A CN 202111514452A CN 114395173 A CN114395173 A CN 114395173A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 116
- 238000007789 sealing Methods 0.000 title claims abstract description 71
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000009472 formulation Methods 0.000 title description 2
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 50
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 28
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 28
- 229920001194 natural rubber Polymers 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 26
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000011347 resin Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 20
- 239000003063 flame retardant Substances 0.000 claims abstract description 19
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004902 Softening Agent Substances 0.000 claims abstract description 17
- 230000003213 activating effect Effects 0.000 claims abstract description 17
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 17
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000002035 prolonged effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 31
- 238000002156 mixing Methods 0.000 claims description 29
- 238000004140 cleaning Methods 0.000 claims description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 6
- 238000007710 freezing Methods 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000012459 cleaning agent Substances 0.000 claims description 3
- 239000011538 cleaning material Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0053—Producing sealings
-
- 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
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a formula of a high-temperature-resistant rubber sealing ring, which comprises the following components in parts by weight: 200 parts of natural rubber, 10-20 parts of fluororubber, 200 parts of epichlorohydrin resin, 200 parts of activating agent, 60-100 parts of reinforcing agent, 60-100 parts of softening agent, 6-20 parts of anti-aging agent, 8-30 parts of accelerator, 6-20 parts of vulcanizing agent, 6-20 parts of flame retardant and 10-30 parts of filler. According to the formula and the preparation method of the high-temperature-resistant rubber sealing ring, raw materials are placed in a grading manner in the preparation process of the rubber sealing ring, the phenomenon that a stirring device in an open mill is stuck due to the fact that the raw materials are placed at one time is avoided, the service life of the open mill is prolonged, the open mill can be knocked in the stirring process, the inner wall is vibrated by the knocking manner, the raw materials of the inner wall do not need to be scraped, the raw materials in the inner wall can be uniformly mixed by placing the raw materials for multiple times, the flexibility of the rubber sealing ring is improved, the phenomenon that the rubber sealing ring deforms is avoided, and the phenomenon that the rubber sealing ring drops is avoided.
Description
Technical Field
The invention relates to the technical field of rubber sealing rings, in particular to a formula of a high-temperature-resistant rubber sealing ring and a preparation method thereof.
Background
Rubber seal uses extensively in the life, and rubber seal usually is at appointed business turn over material mouth, and the cover is at appointed position with rubber seal, rotates the sealing washer to the below through the protective cover and extrudees, and then the rubber circle fills the clearance, realizes sealed function, and rubber seal can make different diameters, and rubber seal also is a fine insulating material simultaneously, but this rubber seal still has certain problem at the in-process that uses:
1. the rubber sealing ring is easy to melt under the condition of high temperature, so that the use range of the rubber sealing ring has certain limitation, the use range is small, the rubber sealing ring can only be suitable for the interior of equipment with lower temperature and cannot be installed in the equipment with high temperature, the phenomenon of easy melting in the high-temperature equipment cannot be realized, the sealing effect cannot be realized, the rubber sealing ring is adhered to the interior of the equipment, the rubber sealing ring needs to be treated, meanwhile, the phenomenon of easy breakage of the rubber sealing ring occurs, and the strength is not enough;
2. the phenomenon that the rubber seal warp appears in the long-time use of rubber seal easily, and then leads to rubber seal and equipment laminating insecure, and the phenomenon that rubber seal dropped appears easily, and life is shorter, needs regularly to change rubber seal, increases the consumption of fund, leads to the inside unsealed of equipment simultaneously, has certain influence to the operation of equipment.
Therefore, a formula of the high-temperature resistant rubber sealing ring and a preparation method thereof are provided so as to solve the problems provided in the above.
Disclosure of Invention
The invention aims to provide a formula of a high-temperature-resistant rubber sealing ring and a preparation method thereof, and aims to solve the problems that the rubber sealing ring in the prior market cannot resist high temperature and is easy to deform in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the formula of the high-temperature-resistant rubber sealing ring comprises the following materials in parts by weight: 200 parts of natural rubber, 10-20 parts of fluororubber, 200 parts of epichlorohydrin resin, 200 parts of activating agent, 60-100 parts of reinforcing agent, 60-100 parts of softening agent, 6-20 parts of anti-aging agent, 8-30 parts of accelerator, 6-20 parts of vulcanizing agent, 6-20 parts of flame retardant and 10-30 parts of filler.
Preferably, the material consists of the following materials in parts by weight: 150 parts of natural rubber, 10 parts of fluororubber, 100 parts of epichlorohydrin resin, 100 parts of activating agent, 60 parts of reinforcing agent, 60 parts of softening agent, 6 parts of anti-aging agent, 8 parts of accelerator, 6 parts of vulcanizing agent, 6 parts of flame retardant and 10 parts of filler.
Preferably, the material consists of the following materials in parts by weight: 200 parts of natural rubber, 20 parts of fluororubber, 200 parts of epichlorohydrin resin, 200 parts of activating agent, 100 parts of reinforcing agent, 100 parts of softening agent, 20 parts of anti-aging agent, 30 parts of accelerator, 20 parts of vulcanizing agent, 20 parts of flame retardant and 30 parts of filler.
Preferably, the material consists of the following materials in parts by weight: 150 parts of natural rubber, 15 parts of fluororubber, 150 parts of epichlorohydrin resin, 150 parts of activating agent, 80 parts of reinforcing agent, 80 parts of softening agent, 13 parts of anti-aging agent, 19 parts of accelerator, 13 parts of vulcanizing agent, 13 parts of flame retardant and 20 parts of filler.
A preparation method of a formula of a high-temperature resistant rubber sealing ring; comprises the following steps:
s1: cleaning materials;
s11: respectively pouring natural rubber, fluororubber and epichlorohydrin resin into a cleaning box, introducing a cleaning agent and water into the cleaning box, shaking an object in the cleaning box driven by a stirring rod in the cleaning box, treating stains on the surfaces of the natural rubber, the fluororubber and the epichlorohydrin resin, and repeatedly washing the inside;
s12: placing the cleaned rubber on a draining board, treating water covered above the draining board, placing natural rubber, fluororubber and epichlorohydrin resin in an oven after draining for a period of time, setting the temperature in the oven at 40-50 ℃, and placing for 24 hours;
s2: weighing the materials;
s21: weighing the raw material components of the glue dried by the baking machine according to the distributed mass parts;
s3: pretreating materials;
s31: placing the fluororubber on an open mill for plastication, setting the temperature inside the open mill at about 250 ℃, uniformly placing the natural rubber and the epichlorohydrin resin, and stirring the three well-distributed raw materials by a stirring device inside the open mill to obtain a sizing material;
s32: half of an activating agent, a reinforcing agent, a softening agent, an anti-aging agent, an accelerator, a vulcanizing agent, a flame retardant and a filler are put into the rubber material, the mixing of the mixing device is continued, the mixing device is shaken during the mixing process, the mixing device rotates for about 5-10 minutes, the rest raw materials are put into the mixing device, and the mixing is continued for 20 minutes, so that the rubber material is uniform;
s4: an extrusion process;
placing the prepared rubber material in an extruder, extruding a sheet-shaped rubber sheet, placing the rubber sheet in a cooling separant pool, and placing the rubber sheet at a specified position after the temperature is reduced;
s5: weighing the film;
inspecting and detecting the manufactured film, and testing the performance of the film;
s6: vulcanization molding;
selecting a proper mold cavity according to the sealing ring with the required specification, putting the rubber strip into the fully preheated mold cavity for vulcanization, and taking out to obtain a finished product;
s7: deburring;
the burrs on the surface of the manufactured sealing ring are treated, and the attractiveness of the rubber ring is improved.
Preferably, the burr of sealing washer adopts freezing trimmer equipment to handle, adopts the liquid nitrogen to make the deckle edge of rubber circle become fragile at low temperature, uses specific freezing particle to go to beat and beats deckle edge to get rid of the deckle edge rapidly, need not go its burr through the manual work and handle, avoid the burr to handle the phenomenon that the incomplete limit appears in the messenger rubber circle that the processing is unclean, avoid rubber seal to appear the phenomenon of unsmooth.
Preferably, the filler is a mixture of white carbon black, calcium carbonate and diatomite, the white carbon black has good reinforcing, tackifying and dispersing functions, so that the internal raw materials are better mixed, the mixing time of the raw materials is reduced, the calcium carbonate is filled in the rubber, the volume of the product can be increased, the expensive natural rubber is saved, the purpose of reducing the cost is achieved, the wear resistance and the tear strength are improved, the remarkable reinforcing function is achieved, the consistency can be adjusted, the diatomite has the advantages of good mixing uniformity, good suspension performance, high oil absorption rate, large porosity, stable chemical property, wear resistance, heat resistance and the like, and the performance of the rubber ring is improved.
Preferably, the flame retardant can improve the high temperature resistance of the rubber ring, simultaneously, the sealing ring plays a role in isolation, the service life of the rubber ring is prolonged, and peculiar smell is prevented from appearing after the rubber sealing ring is burnt.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the formula and the preparation method of the high-temperature-resistant rubber sealing ring, raw materials are placed in a plurality of times in the preparation process of the rubber sealing ring, the phenomenon that a stirring device in an open mill is stuck due to the fact that the raw materials are placed in one time is avoided, the open mill is protected, the service life of the open mill is prolonged, the open mill can be beaten in the stirring process, the inner wall of the open mill is vibrated down in a beating mode, the raw materials on the inner wall do not need to be manually scraped, the raw materials in the inner wall can be uniformly mixed through the multiple placing, and the mixing efficiency is improved;
(2) according to the formula and the preparation method of the high-temperature-resistant rubber sealing ring, waste materials produced after the rubber sealing ring is extruded are placed in an open mill again, so that the rubber waste materials are gelatinized, the waste materials are treated, the waste of the rubber sealing ring is reduced, the softness of the rubber sealing ring is improved through the placement of a softening agent, an anti-aging agent and an activating agent, the phenomenon that the rubber sealing ring is deformed is avoided, the service life of the rubber sealing ring is prolonged, and the phenomenon that the rubber sealing ring falls off is avoided;
(3) according to the formula and the preparation method of the high-temperature resistant rubber sealing ring, the melting temperature of the rubber sealing ring can be increased by adding the fluororubber, so that the rubber sealing ring is suitable for different equipment, the application range of the rubber sealing ring is enlarged, the rubber sealing ring is prevented from being melted and adhered to the surface of a machine in the high-temperature equipment, the high-temperature resistance of the rubber sealing ring is improved, the application range of the rubber sealing ring is enlarged, different equipment is used, and meanwhile, the rubber sealing ring in the equipment is not required to be processed;
(4) according to the formula and the preparation method of the high-temperature-resistant rubber sealing ring, the mixing of raw materials is improved through the components of the filler, the performance of the rubber sealing ring is improved, water on the surface needs to be completely treated in the process of cleaning stains on the surface of the raw material of the rubber sealing ring, the raw material can enter the next step, the influence of water residue on the proportion of the raw material in the rubber sealing ring is avoided, the burr is removed after the rubber sealing ring is manufactured, the tightness degree of the attachment between the rubber sealing ring and equipment can be improved, and the rubber sealing ring is made to be smooth.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: the formula of the high-temperature-resistant rubber sealing ring comprises the following materials in parts by weight: 200 parts of natural rubber, 10-20 parts of fluororubber, 200 parts of epichlorohydrin resin, 200 parts of activating agent, 60-100 parts of reinforcing agent, 60-100 parts of softening agent, 6-20 parts of anti-aging agent, 8-30 parts of accelerator, 6-20 parts of vulcanizing agent, 6-20 parts of flame retardant and 10-30 parts of filler.
The composite material comprises the following components in parts by weight: 150 parts of natural rubber, 10 parts of fluororubber, 100 parts of epichlorohydrin resin, 100 parts of activating agent, 60 parts of reinforcing agent, 60 parts of softening agent, 6 parts of anti-aging agent, 8 parts of accelerator, 6 parts of vulcanizing agent, 6 parts of flame retardant and 10 parts of filler.
The composite material comprises the following components in parts by weight: 200 parts of natural rubber, 20 parts of fluororubber, 200 parts of epichlorohydrin resin, 200 parts of activating agent, 100 parts of reinforcing agent, 100 parts of softening agent, 20 parts of anti-aging agent, 30 parts of accelerator, 20 parts of vulcanizing agent, 20 parts of flame retardant and 30 parts of filler.
The composite material comprises the following components in parts by weight: 150 parts of natural rubber, 15 parts of fluororubber, 150 parts of epichlorohydrin resin, 150 parts of activating agent, 80 parts of reinforcing agent, 80 parts of softening agent, 13 parts of anti-aging agent, 19 parts of accelerator, 13 parts of vulcanizing agent, 13 parts of flame retardant and 20 parts of filler.
The preparation method of the formula of the high-temperature-resistant rubber sealing ring comprises the following steps:
s1: cleaning materials;
s11: respectively pouring natural rubber, fluororubber and epichlorohydrin resin into a cleaning box, introducing a cleaning agent and water into the cleaning box, shaking an object in the cleaning box driven by a stirring rod in the cleaning box, treating stains on the surfaces of the natural rubber, the fluororubber and the epichlorohydrin resin, and repeatedly washing the inside;
s12: placing the cleaned rubber on a draining board, treating water covered above the draining board, placing natural rubber, fluororubber and epichlorohydrin resin in an oven after draining for a period of time, setting the temperature in the oven at 40-50 ℃, and placing for 24 hours;
s2: weighing the materials;
s21: weighing the raw material components of the glue dried by the baking machine according to the distributed mass parts;
s3: pretreating materials;
s31: placing the fluororubber on an open mill for plastication, setting the temperature inside the open mill at about 250 ℃, uniformly placing the natural rubber and the epichlorohydrin resin, and stirring the three well-distributed raw materials by a stirring device inside the open mill to obtain a sizing material;
s32: half of an activating agent, a reinforcing agent, a softening agent, an anti-aging agent, an accelerator, a vulcanizing agent, a flame retardant and a filler are put into the rubber material, the mixing of the mixing device is continued, the mixing device is shaken during the mixing process, the mixing device rotates for about 5-10 minutes, the rest raw materials are put into the mixing device, and the mixing is continued for 20 minutes, so that the rubber material is uniform;
s4: an extrusion process;
placing the prepared rubber material in an extruder, extruding a sheet-shaped rubber sheet, placing the rubber sheet in a cooling separant pool, and placing the rubber sheet at a specified position after the temperature is reduced;
s5: weighing the film;
inspecting and detecting the manufactured film, and testing the performance of the film;
s6: vulcanization molding;
selecting a proper mold cavity according to the sealing ring with the required specification, putting the rubber strip into the fully preheated mold cavity for vulcanization, and taking out to obtain a finished product;
s7: deburring;
the burrs on the surface of the manufactured sealing ring are treated, and the attractiveness of the rubber ring is improved.
The burr of sealing washer adopts freezing trimmer equipment to handle, adopts the liquid nitrogen to make the deckle edge of rubber circle become fragile at low temperature, uses specific freezing particle to go to beat and beats deckle edge to get rid of the deckle edge rapidly, need not remove its burr through the manual work and handle, avoid the burr to handle unclean and make the phenomenon that the limit appears lacking in the rubber circle.
The filler is a mixture of white carbon black, calcium carbonate and diatomite, the white carbon black has good reinforcing, tackifying and dispersing functions, so that the internal raw materials are better mixed, the mixing time of the raw materials is reduced, the calcium carbonate is filled in the rubber, the volume of the product can be increased, the expensive natural rubber is saved, the purpose of reducing the cost is achieved, the wear resistance and the tearing strength are improved, the obvious reinforcing function is realized, the consistency can be adjusted, and meanwhile, the diatomite has the advantages of good mixing uniformity, good suspension performance, high oil absorption rate, large porosity, stable chemical property, wear resistance, heat resistance and the like, and the performance of the rubber ring is improved.
The fire retardant can improve the high temperature resistance of rubber circle, makes the sealing washer carry out the effect of keeping apart simultaneously, increases the life of rubber circle to accomplish a series of work.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. The formula of the high-temperature-resistant rubber sealing ring is characterized by comprising the following materials in parts by weight: 200 parts of natural rubber, 10-20 parts of fluororubber, 200 parts of epichlorohydrin resin, 200 parts of activating agent, 60-100 parts of reinforcing agent, 60-100 parts of softening agent, 6-20 parts of anti-aging agent, 8-30 parts of accelerator, 6-20 parts of vulcanizing agent, 6-20 parts of flame retardant and 10-30 parts of filler.
2. The formula of the high-temperature-resistant rubber sealing ring according to claim 1 is characterized by comprising the following materials in parts by weight: 150 parts of natural rubber, 10 parts of fluororubber, 100 parts of epichlorohydrin resin, 100 parts of activating agent, 60 parts of reinforcing agent, 60 parts of softening agent, 6 parts of anti-aging agent, 8 parts of accelerator, 6 parts of vulcanizing agent, 6 parts of flame retardant and 10 parts of filler.
3. The formula of the high-temperature-resistant rubber sealing ring according to claim 1 is characterized by comprising the following materials in parts by weight: 200 parts of natural rubber, 20 parts of fluororubber, 200 parts of epichlorohydrin resin, 200 parts of activating agent, 100 parts of reinforcing agent, 100 parts of softening agent, 20 parts of anti-aging agent, 30 parts of accelerator, 20 parts of vulcanizing agent, 20 parts of flame retardant and 30 parts of filler.
4. The formula of the high-temperature-resistant rubber sealing ring according to claim 1 is characterized by comprising the following materials in parts by weight: 150 parts of natural rubber, 15 parts of fluororubber, 150 parts of epichlorohydrin resin, 150 parts of activating agent, 80 parts of reinforcing agent, 80 parts of softening agent, 13 parts of anti-aging agent, 19 parts of accelerator, 13 parts of vulcanizing agent, 13 parts of flame retardant and 20 parts of filler.
5. The preparation method of the formula of the high-temperature-resistant rubber sealing ring according to claim 1, characterized in that: the preparation method of the formula of the high-temperature-resistant rubber sealing ring comprises the following steps:
s1: cleaning materials;
s11: respectively pouring natural rubber, fluororubber and epichlorohydrin resin into a cleaning box, introducing a cleaning agent and water into the cleaning box, shaking an object in the cleaning box driven by a stirring rod in the cleaning box, treating stains on the surfaces of the natural rubber, the fluororubber and the epichlorohydrin resin, and repeatedly washing the inside;
s12: placing the cleaned rubber on a draining board, treating water covered above the draining board, placing natural rubber, fluororubber and epichlorohydrin resin in an oven after draining for a period of time, setting the temperature in the oven at 40-50 ℃, and placing for 24 hours;
s2: weighing the materials;
s21: weighing the raw material components of the glue dried by the baking machine according to the distributed mass parts;
s3: pretreating materials;
s31: placing the fluororubber on an open mill for plastication, setting the temperature inside the open mill at about 250 ℃, uniformly placing the natural rubber and the epichlorohydrin resin, and stirring the three well-distributed raw materials by a stirring device inside the open mill to obtain a sizing material;
s32: half of an activating agent, a reinforcing agent, a softening agent, an anti-aging agent, an accelerator, a vulcanizing agent, a flame retardant and a filler are put into the rubber material, the mixing of the mixing device is continued, the mixing device is shaken during the mixing process, the mixing device rotates for about 5-10 minutes, the rest raw materials are put into the mixing device, and the mixing is continued for 20 minutes, so that the rubber material is uniform;
s4: an extrusion process;
placing the prepared rubber material in an extruder, extruding a sheet-shaped rubber sheet, placing the rubber sheet in a cooling separant pool, and placing the rubber sheet at a specified position after the temperature is reduced;
s5: weighing the film;
inspecting and detecting the manufactured film, and testing the performance of the film;
s6: vulcanization molding;
selecting a proper mold cavity according to the sealing ring with the required specification, putting the rubber strip into the fully preheated mold cavity for vulcanization, and taking out to obtain a finished product;
s7: deburring;
the burrs on the surface of the manufactured sealing ring are treated, and the attractiveness of the rubber ring is improved.
6. The preparation method of the formula of the high-temperature-resistant rubber sealing ring according to claim 1, characterized in that: the burr of sealing washer adopts freezing trimmer equipment to handle, adopts the liquid nitrogen to make the deckle edge of rubber circle become fragile at low temperature, uses specific freezing particle to go to beat and beats deckle edge to get rid of the deckle edge rapidly, need not remove its burr through the manual work and handle, avoid the burr to handle unclean and make the phenomenon that the limit appears lacking in the rubber circle.
7. The formula of the high-temperature-resistant rubber sealing ring according to claim 1, wherein the formula comprises the following components in percentage by weight: the filler is a mixture of white carbon black, calcium carbonate and diatomite, the white carbon black has good reinforcing, tackifying and dispersing functions, so that the internal raw materials are better mixed, the mixing time of the raw materials is reduced, the calcium carbonate is filled in the rubber, the volume of the product can be increased, the expensive natural rubber is saved, the purpose of reducing the cost is achieved, the wear resistance and the tearing strength are improved, the obvious reinforcing function is achieved, the consistency can be adjusted, and meanwhile, the diatomite has the advantages of good mixing uniformity, good suspension performance, high oil absorption rate, large porosity, stable chemical property, wear resistance, heat resistance and the like, and the performance of the rubber ring is improved.
8. The formula of the high-temperature-resistant rubber sealing ring according to claim 1, wherein the formula comprises the following components in percentage by weight: the fire retardant can improve the high temperature resistance of the rubber ring, and meanwhile, the sealing ring is isolated, and the service life of the rubber ring is prolonged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111514452.8A CN114395173A (en) | 2021-12-13 | 2021-12-13 | Formula and preparation method of high-temperature-resistant rubber sealing ring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115594986A (en) * | 2022-10-13 | 2023-01-13 | 江苏中煜橡塑科技有限公司（Cn） | High-conductivity fluororubber sealing ring for lithium battery and preparation method thereof |
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| CN109867886A (en) * | 2019-02-26 | 2019-06-11 | 安徽沃尔顶密封工业有限公司 | A kind of wear-resisting O-ring seal of Novel compressive |
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| US20110124792A1 (en) * | 2009-11-26 | 2011-05-26 | Evonik Degussa Gmbh | Rubber mixture |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115594986A (en) * | 2022-10-13 | 2023-01-13 | 江苏中煜橡塑科技有限公司（Cn） | High-conductivity fluororubber sealing ring for lithium battery and preparation method thereof |
| CN115594986B (en) * | 2022-10-13 | 2023-11-03 | 江苏中煜橡塑科技有限公司 | High-conductivity fluororubber sealing ring for lithium battery and preparation method thereof |
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