CN107418002A - A kind of high-quality rubber seal - Google Patents
A kind of high-quality rubber seal Download PDFInfo
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- CN107418002A CN107418002A CN201710684799.4A CN201710684799A CN107418002A CN 107418002 A CN107418002 A CN 107418002A CN 201710684799 A CN201710684799 A CN 201710684799A CN 107418002 A CN107418002 A CN 107418002A
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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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
-
- 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
- C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2309/02—Copolymers with acrylonitrile
-
- 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
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino carboxylic acids or of polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Manufacturing & Machinery (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The invention discloses a kind of high-quality rubber seal, it is made up of following material：Nitrile rubber, fiberfill, stearic acid, vulcanizing agent, age resistor, accelerator, reinforcing agent, nano-carbon powder, nano diatomite, dibutyl phthalate.The oil resistant of finished product rubber parts, wear-resisting, stretching strength, elongation rate of tensile failure, buckling performance etc. made from the inventive method have good enhancing, and synthesis uses quality better, the great market competitiveness and promotional value.
Description
Technical field
The invention belongs to rubber processing manufacturing technology field, and in particular to a kind of high-quality rubber seal.
Background technology
Nitrile rubber is also known as the acrylic-nitrile rubber of butadiene one, abbreviation NBR, mean molecule quantity 700,000 or so, is existing normal
One of rubber types.Nitrile rubber has good oil resistivity, wearability and air-tightness.Nitrile rubber is mainly used in making
Oil-resistant article, such as oil-resistant pipe, adhesive tape, diaphragm of rubber and large-scale oil sac, it is usually used in making all kinds of oil resistant pressings, such as O
Shape circle, oil sealing, leather cup, diaphragm, valve, bellows, sebific duct, seal, foaming etc., it is also used for making offset plate and wear part.
With the continuous development of research and production, higher performance requirement is proposed to nitrile rubber, it is necessary to its oil resistant, resistance to
Processing is further improved in the characteristics such as mill, intensity.
The content of the invention
The purpose of the present invention is to be directed to the problem of existing, there is provided a kind of high-quality rubber seal.
The present invention is achieved by the following technical solutions：
A kind of high-quality rubber seal, is made up of the material of following parts by weight：
110 ~ 130 parts of nitrile rubbers, 5 ~ 8 parts of fiberfill, 2 ~ 4 parts of stearic acid, 1 ~ 2 part of vulcanizing agent, 0.5 ~ 1.5 part of age resistor, 1
~ 2 parts of accelerator, 1 ~ 2 portion of reinforcing agent, 10 ~ 15 parts of nano-carbon powders, 8 ~ 12 parts of nano diatomites, 3 ~ 6 parts of fourths of phthalic acid two
Ester.
Preferably, it is made up of the material of following parts by weight：
120 parts of nitrile rubbers, 7 parts of fiberfill, 3 parts of stearic acid, 1.5 parts of vulcanizing agents, 1 part of age resistor, 1.5 parts of accelerator, 1.5
Part reinforcing agent, 13 parts of nano-carbon powders, 10 parts of nano diatomites, 5 parts of dibutyl phthalates.
Further, described fiberfill is modifying aramid fiber pulp, and its preparation method comprises the following steps：
（1）Fanglun slurry cake is immersed in clear water, microwave treatment then is applied to it, control the power output of microwave for 600 ~
Taken out after 700W, 20 ~ 25min drain it is standby after surface moisture；
（2）By step（1）Fanglun slurry cake after processing is immersed in modification liquid, and it is 48 ~ 52 DEG C that heating, which keeps the temperature of modification liquid,
Taken out after 1 ~ 1.5h of immersion treatment standby；Each composition and its corresponding parts by weight are in described modification liquid：14 ~ 18 parts of titanate esters idols
Join agent, 3 ~ 5 parts of maleic anhydrides, 2 ~ 4 parts of phthalic anhydrides, 4 ~ 7 parts of dimethyl sulfoxide (DMSO)s, 6 ~ 10 parts of ethylene glycol, 200 ~ 230 parts
Water；
（3）By step（2）Fanglun slurry cake after processing is put into drying box and dried to constant weight, during which the dry temperature of control
Spend for 70 ~ 75 DEG C.
A kind of preparation method of high-quality rubber seal, comprises the following steps：
（1）First by nitrile rubber, fiberfill, stearic acid, age resistor, accelerator, reinforcing agent, nano-carbon powder, nano diatomite,
Mixing is put into mixer dibutyl phthalate jointly, after 500 ~ 600 revs/min of 10 ~ 15min of rotating speed stir process
Take out, be then placed in muller and be kneaded, it is finally re-compacted to be molded to obtain semi-finished product for standby；
（2）By step（1）Obtained semi-finished product are put into vulcanizing equipment, are then added vulcanizing agent and are carried out vulcanizing treatment, during which
The temperature for controlling vulcanization is 190 ~ 200 DEG C, is taken out after 3 ~ 5min of vulcanizing treatment, finally carries out deburring again, examines.
In order to improve the use characteristic of nitrile rubber, the compositions such as inorganic filler, fiber can be added wherein in existing method,
And good progress effect is achieved, wherein Fanglun slurry cake is one kind in conventional fiber, and it has very unique surpass
Thin chopped fiber structure, trunk fiber surface have the largely ultra-fine microfibril between nanoscale and micro-meter scale,
With very big specific surface area, up to 7 ~ 10m2/ g, more than long stapled ten times are exceeded, being filled in rubber effectively to improve
The characteristics such as overall oil resistant, intensity.Can Fanglun slurry cake and rubber matrix compatibility it is bad, also have led to its filling use it is special
Property can not play completely, to this people to Fanglun slurry cake carry out surface modification treatment, have chemical modification method, physical modification method
Deng, and existing method it is modified it is more this can be produced to the characteristic of Fanglun slurry cake grow that effect to disappear, such as Fanglun slurry cake and rubber-based
The compatible bond strength enhancing of body, it will usually reduce the overall elongation rate of tensile failure of rubber product and buckling performance etc..The present invention is
The use characteristic of Fanglun slurry cake is given full play to, improves its use value, and has carried out substantial amounts of experiment, final optimization pass has gone out this
The technique for inventing processing, has mainly carried out modification to Fanglun slurry cake, specifically first has been immersed in clear water by Fanglun slurry cake
Row microwave treatment, microwave treatment can effectively lift the surface-active of Fanglun slurry cake, have facilitation to follow-up processing, together
When it can also soften the trunk fiber of Fanglun slurry cake, so as to strengthen the anti-deformation intensity of rubber, and in order to reduce microwave
The infringement to ultra-fine microfibril is handled, and Fanglun slurry cake is immersed in water medium, and the modification with formulated
Liquid is modified processing to Fanglun slurry cake, and the active ingredient in modification liquid can carry out surface-crosslinked, grafting, activation with Fanglun slurry cake
Deng reaction, its surface-active is improved, improves its surface amide groups, sulfonic group, the content and activity of amino isoreactivity group,
The intensification of Fanglun slurry cake trunk fiber and ultra-fine microfibril and rubber matrix crosslink density is promoted, enhances overall intensity
Characteristic, under microwave treatment effect, the using effect of modification liquid is further strengthened, and the final modified Fanglun slurry cake completed can be fully
Be scattered in rubber matrix, enhance the use quality of nitrile rubber together with remaining composition.
The present invention has advantages below compared with prior art：
Under the common mating reaction of each material composition, the oil resistant of finished product rubber parts made from the inventive method, it is wear-resisting, stretch surely it is strong
Degree, elongation rate of tensile failure, buckling performance etc. have good enhancing, and synthesis uses quality better, the great market competitiveness and promotion price
Value.
Embodiment
Embodiment 1
A kind of high-quality rubber seal, is made up of the material of following parts by weight：
110 parts of nitrile rubbers, 5 parts of fiberfill, 2 parts of stearic acid, 1 part of vulcanizing agent, 0.5 part of age resistor, 1 part of accelerator, 1 part of benefit
Strong agent, 10 parts of nano-carbon powders, 8 parts of nano diatomites, 3 parts of dibutyl phthalates.
Further, described fiberfill is modifying aramid fiber pulp, and its preparation method comprises the following steps：
（1）Fanglun slurry cake is immersed in clear water, microwave treatment then is applied to it, the power output for controlling microwave is 600W,
Taken out after 20min drain it is standby after surface moisture；
（2）By step（1）Fanglun slurry cake after processing is immersed in modification liquid, and it is 48 DEG C that heating, which keeps the temperature of modification liquid, leaching
Taken out after bubble processing 1h standby；Each composition and its corresponding parts by weight are in described modification liquid：14 parts of titanate coupling agents, 3 parts
Maleic anhydride, 2 parts of phthalic anhydrides, 4 parts of dimethyl sulfoxide (DMSO)s, 6 parts of ethylene glycol, 200 parts of water；
（3）By step（2）Fanglun slurry cake after processing is put into drying box and dried to constant weight, during which the dry temperature of control
Spend for 70 DEG C.
A kind of preparation method of high-quality rubber seal, comprises the following steps：
（1）First by nitrile rubber, fiberfill, stearic acid, age resistor, accelerator, reinforcing agent, nano-carbon powder, nano diatomite,
Mixing is put into mixer dibutyl phthalate jointly, to be taken out after 500 revs/min of rotating speed stir process 10min, so
After be put into muller and be kneaded, it is last re-compacted to be molded to obtain semi-finished product for standby；
（2）By step（1）Obtained semi-finished product are put into vulcanizing equipment, are then added vulcanizing agent and are carried out vulcanizing treatment, during which
The temperature for controlling vulcanization is 190 DEG C, is taken out after vulcanizing treatment 3min, finally carries out deburring again, examines.
Embodiment 2
A kind of high-quality rubber seal, is made up of the material of following parts by weight：
120 parts of nitrile rubbers, 7 parts of fiberfill, 3 parts of stearic acid, 1.5 parts of vulcanizing agents, 1 part of age resistor, 1.5 parts of accelerator, 1.5
Part reinforcing agent, 13 parts of nano-carbon powders, 10 parts of nano diatomites, 5 parts of dibutyl phthalates.
Further, described fiberfill is modifying aramid fiber pulp, and its preparation method comprises the following steps：
（1）Fanglun slurry cake is immersed in clear water, microwave treatment then is applied to it, the power output for controlling microwave is 650W,
Taken out after 23min drain it is standby after surface moisture；
（2）By step（1）Fanglun slurry cake after processing is immersed in modification liquid, and it is 50 DEG C that heating, which keeps the temperature of modification liquid, leaching
Taken out after bubble processing 1.2h standby；Each composition and its corresponding parts by weight are in described modification liquid：16 parts of titanate coupling agents, 4
Part maleic anhydride, 3 parts of phthalic anhydrides, 6 parts of dimethyl sulfoxide (DMSO)s, 8 parts of ethylene glycol, 220 parts of water；
（3）By step（2）Fanglun slurry cake after processing is put into drying box and dried to constant weight, during which the dry temperature of control
Spend for 73 DEG C.
A kind of preparation method of high-quality rubber seal, comprises the following steps：
（1）First by nitrile rubber, fiberfill, stearic acid, age resistor, accelerator, reinforcing agent, nano-carbon powder, nano diatomite,
Mixing is put into mixer dibutyl phthalate jointly, to be taken out after 550 revs/min of rotating speed stir process 13min, so
After be put into muller and be kneaded, it is last re-compacted to be molded to obtain semi-finished product for standby；
（2）By step（1）Obtained semi-finished product are put into vulcanizing equipment, are then added vulcanizing agent and are carried out vulcanizing treatment, during which
The temperature for controlling vulcanization is 195 DEG C, is taken out after vulcanizing treatment 4min, finally carries out deburring again, examines.
Embodiment 3
A kind of high-quality rubber seal, is made up of the material of following parts by weight：
130 parts of nitrile rubbers, 8 parts of fiberfill, 4 parts of stearic acid, 2 parts of vulcanizing agents, 1.5 parts of age resistor, 2 parts of accelerator, 2 parts of benefits
Strong agent, 15 parts of nano-carbon powders, 12 parts of nano diatomites, 6 parts of dibutyl phthalates.
Further, described fiberfill is modifying aramid fiber pulp, and its preparation method comprises the following steps：
（1）Fanglun slurry cake is immersed in clear water, microwave treatment then is applied to it, the power output for controlling microwave is 700W,
Taken out after 25min drain it is standby after surface moisture；
（2）By step（1）Fanglun slurry cake after processing is immersed in modification liquid, and it is 52 DEG C that heating, which keeps the temperature of modification liquid, leaching
Taken out after bubble processing 1.5h standby；Each composition and its corresponding parts by weight are in described modification liquid：18 parts of titanate coupling agents, 5
Part maleic anhydride, 4 parts of phthalic anhydrides, 7 parts of dimethyl sulfoxide (DMSO)s, 10 parts of ethylene glycol, 230 parts of water；
（3）By step（2）Fanglun slurry cake after processing is put into drying box and dried to constant weight, during which the dry temperature of control
Spend for 75 DEG C.
A kind of preparation method of high-quality rubber seal, comprises the following steps：
（1）First by nitrile rubber, fiberfill, stearic acid, age resistor, accelerator, reinforcing agent, nano-carbon powder, nano diatomite,
Mixing is put into mixer dibutyl phthalate jointly, to be taken out after 600 revs/min of rotating speed stir process 15min, so
After be put into muller and be kneaded, it is last re-compacted to be molded to obtain semi-finished product for standby；
（2）By step（1）Obtained semi-finished product are put into vulcanizing equipment, are then added vulcanizing agent and are carried out vulcanizing treatment, during which
The temperature for controlling vulcanization is 200 DEG C, is taken out after vulcanizing treatment 5min, finally carries out deburring again, examines.
Comparative example 1
This comparative example 1 compared with Example 2, by the step in modifying aramid fiber pulp preparation method（1）And step（2）It is suitable
Sequence is exchanged, method and step all same in addition.
Comparative example 2
This comparative example 2 compared with Example 2, saves the step in modifying aramid fiber pulp preparation method（1）Processing, in addition
Method and step all same.
Comparative example 3
This comparative example 3 compared with Example 2, saves the step in modifying aramid fiber pulp preparation method（2）Processing, in addition
Method and step all same.
Comparative example 4
This comparative example 4 compared with Example 2, with etc. mass parts commercially available Fanglun slurry cake substitute fiberfill composition, except this
Outer method and step all same.
In order to contrast effect of the present invention, to above-described embodiment 2, comparative example 1, comparative example 2, comparative example 3,
Nitrile rubber product made from the methods described of comparative example 4 is corresponding carries out performance test, wherein nitrile rubber composition used
The nitrile rubber that the trade mark for the production of German Lanxess Corporation is 3345F, acrylonitrile content 33%；Correction data corresponding to each group
It is as shown in table 1 below：
Table 1
Note：The standard oil of resistance to 3# described in upper table 1 is tested with reference to GB/T 1690-2006, during which controls the temperature of 3# standard oils
Spend for 100 DEG C, a length of 140h during immersion；Described tensile property is tested with reference to GB/T 528-2009；Described compressibility
It can be tested with reference to GB/T 7759-1996.
The rubber parts oil resistance stability made from the inventive method correspondence it can be seen from upper table 1 is improved very well, and
In the case that stretching strength, elongation rate of tensile failure are lifted, buckling performance is also remarkably reinforced, and improves traditional Fanglun slurry cake addition
This grows that use drawback to disappear to performance, and overall quality is substantially improved, great popularizing value and the market competitiveness.
Claims (4)
1. a kind of high-quality rubber seal, it is characterised in that be made up of the material of following parts by weight：
110 ~ 130 parts of nitrile rubbers, 5 ~ 8 parts of fiberfill, 2 ~ 4 parts of stearic acid, 1 ~ 2 part of vulcanizing agent, 0.5 ~ 1.5 part of age resistor, 1
~ 2 parts of accelerator, 1 ~ 2 portion of reinforcing agent, 10 ~ 15 parts of nano-carbon powders, 8 ~ 12 parts of nano diatomites, 3 ~ 6 parts of fourths of phthalic acid two
Ester.
2. a kind of high-quality rubber seal according to claim 1, it is characterised in that by the material system of following parts by weight
Into：
120 parts of nitrile rubbers, 7 parts of fiberfill, 3 parts of stearic acid, 1.5 parts of vulcanizing agents, 1 part of age resistor, 1.5 parts of accelerator, 1.5
Part reinforcing agent, 13 parts of nano-carbon powders, 10 parts of nano diatomites, 5 parts of dibutyl phthalates.
3. a kind of high-quality rubber seal according to claim 1 or 2, it is characterised in that described fiberfill is
Modifying aramid fiber pulp, its preparation method comprise the following steps：
（1）Fanglun slurry cake is immersed in clear water, microwave treatment then is applied to it, control the power output of microwave for 600 ~
Taken out after 700W, 20 ~ 25min drain it is standby after surface moisture；
（2）By step（1）Fanglun slurry cake after processing is immersed in modification liquid, and it is 48 ~ 52 DEG C that heating, which keeps the temperature of modification liquid,
Taken out after 1 ~ 1.5h of immersion treatment standby；Each composition and its corresponding parts by weight are in described modification liquid：14 ~ 18 parts of titanate esters idols
Join agent, 3 ~ 5 parts of maleic anhydrides, 2 ~ 4 parts of phthalic anhydrides, 4 ~ 7 parts of dimethyl sulfoxide (DMSO)s, 6 ~ 10 parts of ethylene glycol, 200 ~ 230 parts
Water；
（3）By step（2）Fanglun slurry cake after processing is put into drying box and dried to constant weight, during which the dry temperature of control
Spend for 70 ~ 75 DEG C.
4. a kind of preparation method of high-quality rubber seal as claimed in claim 1 or 2, it is characterised in that including as follows
Step：
（1）First by nitrile rubber, fiberfill, stearic acid, age resistor, accelerator, reinforcing agent, nano-carbon powder, nano diatomite,
Mixing is put into mixer dibutyl phthalate jointly, after 500 ~ 600 revs/min of 10 ~ 15min of rotating speed stir process
Take out, be then placed in muller and be kneaded, it is finally re-compacted to be molded to obtain semi-finished product for standby；
（2）By step（1）Obtained semi-finished product are put into vulcanizing equipment, are then added vulcanizing agent and are carried out vulcanizing treatment, during which
The temperature for controlling vulcanization is 190 ~ 200 DEG C, is taken out after 3 ~ 5min of vulcanizing treatment, finally carries out deburring again, examines.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710684799.4A CN107418002A (en) | 2017-08-11 | 2017-08-11 | A kind of high-quality rubber seal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710684799.4A CN107418002A (en) | 2017-08-11 | 2017-08-11 | A kind of high-quality rubber seal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109438792A (en) * | 2018-09-29 | 2019-03-08 | 芜湖集拓橡胶技术有限公司 | A kind of resistance to oilcloth department rubber parts of air-conditioning |
| CN109627602A (en) * | 2018-11-12 | 2019-04-16 | 安徽江南泵阀有限公司 | A kind of high performance and long service life EPDM pump valve body material |
| CN114753152A (en) * | 2019-12-29 | 2022-07-15 | 河北新尔特橡塑密封有限公司 | Titanate modified polypropylene fiber, preparation method and application thereof, heat-shrinkage-resistant sealing ring and preparation method thereof |
| CN115466438A (en) * | 2021-06-11 | 2022-12-13 | 嘉兴市益隆橡塑有限公司 | Low-temperature-resistant rubber sealing ring and preparation method thereof |
| CN116285038A (en) * | 2023-03-21 | 2023-06-23 | 马鞍山宏力橡胶制品有限公司 | Slewing bearing nitrile-butadiene sealing ring sizing material and application thereof |
| CN117624749A (en) * | 2024-01-25 | 2024-03-01 | 江苏冠联新材料科技股份有限公司 | Oil-resistant and aging-resistant rubber sealing ring and preparation method thereof |
-
2017
- 2017-08-11 CN CN201710684799.4A patent/CN107418002A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109438792A (en) * | 2018-09-29 | 2019-03-08 | 芜湖集拓橡胶技术有限公司 | A kind of resistance to oilcloth department rubber parts of air-conditioning |
| CN109627602A (en) * | 2018-11-12 | 2019-04-16 | 安徽江南泵阀有限公司 | A kind of high performance and long service life EPDM pump valve body material |
| CN114753152A (en) * | 2019-12-29 | 2022-07-15 | 河北新尔特橡塑密封有限公司 | Titanate modified polypropylene fiber, preparation method and application thereof, heat-shrinkage-resistant sealing ring and preparation method thereof |
| CN115466438A (en) * | 2021-06-11 | 2022-12-13 | 嘉兴市益隆橡塑有限公司 | Low-temperature-resistant rubber sealing ring and preparation method thereof |
| CN116285038A (en) * | 2023-03-21 | 2023-06-23 | 马鞍山宏力橡胶制品有限公司 | Slewing bearing nitrile-butadiene sealing ring sizing material and application thereof |
| CN117624749A (en) * | 2024-01-25 | 2024-03-01 | 江苏冠联新材料科技股份有限公司 | Oil-resistant and aging-resistant rubber sealing ring and preparation method thereof |
| CN117624749B (en) * | 2024-01-25 | 2024-04-05 | 江苏冠联新材料科技股份有限公司 | Oil-resistant and aging-resistant rubber sealing ring and preparation method thereof |
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