CN106700545A - Composite wear-resistant rubber material - Google Patents
Composite wear-resistant rubber material Download PDFInfo
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- CN106700545A CN106700545A CN201611225951.4A CN201611225951A CN106700545A CN 106700545 A CN106700545 A CN 106700545A CN 201611225951 A CN201611225951 A CN 201611225951A CN 106700545 A CN106700545 A CN 106700545A
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/10—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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
Abstract
The invention discloses a composite wear-resistant rubber material. The composite wear-resistant rubber material is prepared by mixing a rubber base material with reinforced rubber accounting for 20 to 25 percent of the weight of the rubber base material under the condition of 170 to 180DEG C for 1 hour. The composite wear-resistant rubber material disclosed by the invention is formed by mixing the rubber base material having special components with the reinforced rubber at high temperature, so the composite wear-resistant rubber material has the characteristics of two kinds of rubber; in addition, the composite wear-resistant rubber material contains a reinforcing agent of a modified alumina micro powder, modified hollow glass microspheres and modified nanosilicon dioxide, and surface properties of the substances are changed, so that the substances can be better combined with other organic and inorganic components when being added into the rubber base material, and the strength and the wear resistance of composite rubber are greatly enhanced.
Description
Technical field
It is specifically a kind of compound wear-resisting the invention belongs to the rubber liner material that pipeline fluid transportation art is used
Elastomeric material.
Background technology
Pipeline be with pipe, pipe connector and valve etc. be connected into for convey gas, liquid or band solid particle
Fluid device.Generally, after fluid is pressurized through air blower, compressor, pump and boiler etc., low pressure is flowed to from the high pressure of pipeline
Place, can also be used pressure or the gravity conveying of fluid itself.In course of conveying, the fluid in pipeline can be made to the inwall of pipeline
Into washing away and wearing and tearing, so that the problems such as abrasion of pipeline can be caused after a protracted use.In order to the abrasion for solving pipeline is asked
Topic, often sets rubber or ceramic lining, and existing rubber liner layer due to the restriction of material in inner-walls of duct, and its is wear-resisting
Performance is not excellent, so as to cause its service life very low.
The content of the invention
Make for the anti-wear performance of the rubber liner used in solution in the prior art abrasion-proof pipe is unexcellent caused
It is compound resistance to by setting in pipeline this invention provides a kind of compound abrasive rubber material with the problem that the life-span is low
Rubber milling material, so as to greatly strengthen the anti-wear performance of the pipeline.
The present invention for the technical scheme that is used of solution above-mentioned technical problem for：A kind of compound abrasive rubber material, by
The enhancing rubber of rubber base-material and rubber base-material weight 20-25% kneads 1h under the conditions of 170-180 DEG C and is made, wherein, according to weight
Amount ratio, the rubber base-material is by 40~50 parts of aramid fiber rubber, 10~20 parts of nylon fibre, 1~3 part of vulcanizing agent, 3~4
Part accelerator, 7~9 parts of carbon black, 2~3 parts of calcium carbonate and 1~2 part of talcum powder knead under the conditions of 120~140 DEG C
Form；It is described enhancing rubber by 10~12 parts nylon fibre, 30~34 parts of fluorubber, 4~5 parts of carbon fiber, 2~3 parts
Vulcanizing agent, 5~7 parts of carbon black, 1~2 part of alumina powder and 3~5 parts of reinforcing agent mixed under the conditions of 120~140 DEG C
Refining is formed, according to weight ratio, the reinforcing agent by 24-26 parts Ludox, 3-5 parts of modified aluminas micro mist, 5-7 parts change
Property hollow glass micropearl and 6-8 parts of modified manometer silicon dioxide are mixed, and the modified hollow glass micropearl refers to will be commercially available
Hollow glass micropearl mix with the surface modifier I of its weight 3-5% after stand 1-2h after filtering dry and obtain, surface used
Modifying agent I compares 3-4 by KH550, ethanol, acetone and barium hydroxide according to weight:80:2-3:The ratio of 1-2 is mixed；It is described
Modified manometer silicon dioxide and modified aluminas micro mist are respectively that commercially available nano silicon and alumina powder is heavy with it
The surface modifier II for measuring 3-5% is mixed to get, and the surface modifier II is by barium hydroxide, sodium carbonate and KH550 according to weight ratio
3-4:1-2:30 ratio is mixed.
Using preceding first passing through modification, modification refers to the talcum powder：By commercially available talcum powder and its weight
Filter to dry after standing 1-2h after the mixing of surface modifier I of 3-5% and obtain, surface modifier used I is by KH550, ethanol, third
Ketone and barium hydroxide compare 3-4 according to weight:80:2-3:The ratio of 1-2 is mixed.
Filler containing aramid fiber rubber weight 10% in the rubber base-material, according to weight ratio, described filler is by 4~5 parts of seas
Afrodite suede, 1~2 part of nano zinc powder, 10~15 parts of tetraethyl orthosilicates are made, and the preparation method of described filler is：According to weight
Than taking 10~15 parts of tetraethyl orthosilicates with deionized water according to 1:The ratio mixing of 8-10, then positive silicic acid is sequentially added thereto
The glacial acetic acid of ethyl ester weight 10%, the carbon dust of tetraethyl orthosilicate weight 5%, 4~5 parts of sepiolite cashmeres and 1~2 part of nano zinc powder are mixed
Conjunction is uniformly reacted, in course of reaction, every 20min to the ultrasonic wave for applying frequency 350-370kHz in reaction system
1min, question response carries out ultrafiltration and obtains solid powder after terminating to reaction system, and finally solid powder is filled under aerobic conditions
It is to obtain filler to divide calcination to remove carbon dust.
Contain modified hollow glass micropearl, modified aluminas micro mist and modified nano-silica in reinforcing agent of the invention
Silicon, on the one hand can it is dispersed in the base, be on the other hand these material surfaces is grafted substantial amounts of silicon
Hydroxyl, these groups are coupled together it with matrix by chemical reaction, it is ensured that had between these three materials and matrix good
Interface binding power, so as to enhance the anti-wear performance and intensity of matrix material；And when by external force, hollow glass micropearl
Particle is stressed and deforms upon, destroys in the material, so that apparatus with shock absorbing, improves impact property, while can be with
Trigger crazing, terminate crack extension, the shear yielding of matrix is triggered under certain morphosis, so as to consume substantial amounts of impact energy
Amount, can preferably transmit born external force again, improve compressive strength, bending strength, the impact strength of matrix；
By the use of barium hydroxide and sodium carbonate mixing nano level SiO is allowed as catalyst2The surface energy of particle and alumina powder
The hard to bear effect to hydroxyl, so as to contain a number of oxygen-containing functional group, increased nanoscale SiO2Particle and aluminum oxide are micro-
The relevant surface compatability of powder, in nanoscale SiO2Particle and alumina powder are sufficiently mixed as inserts with remaining raw material
When, because both particle all very littles, and specific surface area is big, the structure of granular causes that rest materials increase with its contact area
Greatly, allow both dispersed in material, consequently facilitating both occur chemical bonding or physical bond with remaining material.
Additionally, dispersed nanoscale SiO2Equivalent to " anchor point ", its reinforcing matrix that can make to be generated under hot environment is tied with it
Close, in the case where being acted on by external impacts, the effect of " stress concentration " can be produced so that some matrixes " surrender " around it
And more work of deformation is absorbed, " pinning-climb up and over " effect, the resistance suffered in extension of increase crackle can be also produced in addition
Power, consumes work of deformation, so that its toughness increases；
Likewise, talcum powder is after modified treatment, so that a number of oxygen-containing functional group is contained on its surface, increased
Surface compatability is closed, allows it dispersed in material, consequently facilitating there is chemical bonding or physics with remaining material
With reference to.
In the present invention, the sepiolite cashmere in described filler can first pass through modification, the modification before
Refer to：Filter to dry after standing 1-2h after commercially available sepiolite cashmere powder is mixed with the surface modifier I of its weight 3-5% and obtain,
Surface modifier used I compares 3-4 by KH550, ethanol, acetone and barium hydroxide according to weight:80:2-3:The ratio mixing of 1-2
Form.Sepiolite cashmere powder first passes through modification, is the micro mist with microcellular structure because it has very big internal surface area,
These microcellular structures can effectively cut down the vibration that impact is produced, and on the other hand be to make the inside and outside of sepiolite cashmere powder in modifying process
The substantial amounts of silicone hydroxyl of surface grafting, these groups are coupled together sepiolite cashmere powder and matrix by chemical reaction, it is ensured that had
Good interface binding power.
Beneficial effect：The present invention compared with prior art, possesses advantages below：
1）The present invention to be formed by the way that the rubber base-material of special composition is kneaded at high temperature with enhancing rubber, it is not only had two concurrently
The characteristics of planting rubber, and, wherein containing modified aluminas micro mist, modified hollow glass micropearl and modified manometer silicon dioxide
Reinforcing agent, because the surface nature of these materials has been changed, so that when being added in rubber matrix, can be organic with remaining
Preferably combined with inorganic component, the intensity and anti-wear performance of Compound rubber has been greatly enhanced；
2）The filler being made up of sepiolite cashmere, nano zinc powder and tetraethyl orthosilicate is additionally added in rubber base-material of the invention, so that
So that rubber base-material has excellent wear-resisting, resistance to erosion and decay resistance, when filler is prepared, glacial acetic acid is molten by nano zinc powder
Solution generation zinc acetate, and because sepiolite cashmere has very big internal surface area, a part can be destroyed under ul-trasonic irradiation
The structure of sepiolite cashmere, so that the silica and zinc acetate of teos hydrolysis generation enter directly into sepiolite cashmere
Inside, so as to improve the surface characteristic of silica and the physical property of sepiolite cashmere, so as filler and rubber
During mixing, fully can be combined with rubber, so as to increase substantially the wear-resisting of rubber, resistance to erosion and decay resistance.
Specific embodiment
With reference to specific embodiment, the present invention is further elaborated, and raw material used is in following embodiment
The conventional raw material in this area or from can be commercially available on the market.
Embodiment 1
A kind of compound abrasive rubber material, by the enhancing rubber of rubber base-material and rubber base-material weight 20% under the conditions of 170 DEG C
Mixing 1h is made, wherein, according to weight ratio, the rubber base-material by 40 parts aramid fiber rubber, 10 parts of nylon fibre, 1 part
Vulcanizing agent, 3 parts of accelerator, 7 parts of carbon black, 2 parts of calcium carbonate and 1 part of talcum powder are kneaded under the conditions of 120 DEG C and formed；Institute
State enhancing rubber by 10 parts nylon fibre, 30 parts of fluorubber, 4 parts of carbon fiber, 2 parts of vulcanizing agent, 5 parts of carbon black, 1 part
Alumina powder and 3 parts of reinforcing agent kneaded under the conditions of 120 DEG C and formed, according to weight ratio, the reinforcing agent is by 24 parts
Ludox, 3 parts of modified aluminas micro mist, the modified manometer silicon dioxide mixing of 5 parts of modified hollow glass micropearl and 6 parts and
Refer into, the modified hollow glass micropearl quiet after commercially available hollow glass micropearl is mixed with the surface modifier I of its weight 3%
Put filtering after 1h and dry and obtain, surface modifier used I compares 3 by KH550, ethanol, acetone and barium hydroxide according to weight:80:
2:1 ratio is mixed；The modified manometer silicon dioxide and modified aluminas micro mist are respectively by commercially available nano-silica
SiClx and alumina powder are mixed to get with the surface modifier II of its weight 3%, and the surface modifier II is by barium hydroxide, carbon
Sour sodium and KH550 compare 3 according to weight:1:30 ratio is mixed.
Above for the present embodiment basic embodiment, can more than on the basis of further improved, optimized and limited：
Such as, using preceding first passing through modification, modification refers to the talcum powder：By commercially available talcum powder and its weight 3%
Surface modifier II be mixed to get, the surface modifier II compares 3 by barium hydroxide, sodium carbonate and KH550 according to weight:1:30
Ratio mix；
And for example, the filler containing aramid fiber rubber weight 10% in the rubber base-material, according to weight ratio, described filler is by 4 parts of Hai Pao
Aminanthine, 1 part of nano zinc powder, 10 parts of tetraethyl orthosilicates are made, and the preparation method of described filler is：According to weight ratio, 10 parts are taken
Tetraethyl orthosilicate is with deionized water according to 1:8 ratio mixing, then the ice vinegar for sequentially adding tetraethyl orthosilicate weight 10% thereto
Acid, the carbon dust of tetraethyl orthosilicate weight 5%, 4 parts of sepiolite cashmeres and 1 part of nano zinc powder are well mixed to be reacted, course of reaction
In, every 20min to the ultrasonic wave 1min for applying frequency 350kHz in reaction system, question response is carried out after terminating to reaction system
Ultrafiltration obtains solid powder, and finally by solid powder, abundant calcination removing carbon dust is to obtain filler under aerobic conditions.
Embodiment 2
A kind of compound abrasive rubber material, by the enhancing rubber of rubber base-material and rubber base-material weight 25% under the conditions of 180 DEG C
Mixing 1h is made, wherein, according to weight ratio, the rubber base-material by 50 parts aramid fiber rubber, 20 parts of nylon fibre, 3 parts
Vulcanizing agent, 4 parts of accelerator, 9 parts of carbon black, 3 parts of calcium carbonate and 2 parts of talcum powder are kneaded under the conditions of 140 DEG C and formed；Institute
State enhancing rubber by 12 parts nylon fibre, 34 parts of fluorubber, 5 parts of carbon fiber, 3 parts of vulcanizing agent, 7 parts of carbon black, 2 parts
Alumina powder and 5 parts of reinforcing agent kneaded under the conditions of 140 DEG C and formed, according to weight ratio, the reinforcing agent is by 26 parts
Ludox, 5 parts of modified aluminas micro mist, the modified manometer silicon dioxide mixing of 7 parts of modified hollow glass micropearl and 8 parts and
Refer into, the modified hollow glass micropearl quiet after commercially available hollow glass micropearl is mixed with the surface modifier I of its weight 5%
Put filtering after 2h and dry and obtain, surface modifier used I compares 4 by KH550, ethanol, acetone and barium hydroxide according to weight:80:
3:2 ratio is mixed；The modified manometer silicon dioxide and modified aluminas micro mist are respectively by commercially available nano-silica
SiClx and alumina powder are mixed to get with the surface modifier II of its weight 5%, and the surface modifier II is by barium hydroxide, carbon
Sour sodium and KH550 compare 4 according to weight:2:30 ratio is mixed.
Above for the present embodiment basic embodiment, can more than on the basis of further improved, optimized and limited：
Such as, using preceding first passing through modification, modification refers to the talcum powder：By commercially available talcum powder and its weight 5%
Surface modifier II be mixed to get, the surface modifier II compares 4 by barium hydroxide, sodium carbonate and KH550 according to weight:2:30
Ratio mix；
And for example, the filler containing aramid fiber rubber weight 10% in the rubber base-material, according to weight ratio, described filler is by 5 parts of Hai Pao
Aminanthine, 2 parts of nano zinc powder, 15 parts of tetraethyl orthosilicates are made, and the preparation method of described filler is：According to weight ratio, 15 parts are taken
Tetraethyl orthosilicate is with deionized water according to 1:10 ratio mixing, then the ice for sequentially adding tetraethyl orthosilicate weight 10% thereto
Acetic acid, the carbon dust of tetraethyl orthosilicate weight 5%, 5 parts of sepiolite cashmeres and 2 parts of nano zinc powder are well mixed to be reacted, and is reacted
Cheng Zhong, every 20min to the ultrasonic wave 1min for applying frequency 370kHz in reaction system, question response enters after terminating to reaction system
Row ultrafiltration obtains solid powder, and finally by solid powder, abundant calcination removing carbon dust is to obtain filler under aerobic conditions.
Embodiment 3
A kind of compound abrasive rubber material, by the enhancing rubber of rubber base-material and rubber base-material weight 22.5% in 175 DEG C of conditions
Lower mixing 1h is made, wherein, according to weight ratio, the rubber base-material by 45 parts aramid fiber rubber, 15 parts of nylon fibre, 2 parts
Vulcanizing agent, 3.5 parts of accelerator, 8 parts of carbon black, 2.5 parts of calcium carbonate and 1.5 parts of talcum powder mixed under the conditions of 130 DEG C
Refining is formed；It is described enhancing rubber by 11 parts nylon fibre, 32 parts of fluorubber, 4.5 parts of carbon fiber, 2.5 parts of vulcanizing agent,
6 parts of carbon black, 1.5 parts of alumina powder and 4 parts of reinforcing agent are kneaded under the conditions of 130 DEG C and formed, described according to weight ratio
Reinforcing agent is by 25 parts of Ludox, 4 parts of modified aluminas micro mist, 6 parts of modified hollow glass micropearl and 7 parts of modified Nano
Silica is mixed, and the modified hollow glass micropearl refers to the surface by commercially available hollow glass micropearl and its weight 3.5%
Filter to dry after standing 1.5h after the mixing of modifying agent I and obtain, surface modifier used I is by KH550, ethanol, acetone and hydroxide
Barium compares 3.5 according to weight:80:2.5:1.5 ratio is mixed；The modified manometer silicon dioxide and modified aluminas micro mist
It is respectively that commercially available nano silicon and alumina powder are mixed to get with the surface modifier II of its weight 4%, the surface
Modifying agent II compares 3.5 by barium hydroxide, sodium carbonate and KH550 according to weight:1.5:30 ratio is mixed.
Above for the present embodiment basic embodiment, can more than on the basis of further improved, optimized and limited：
Such as, using preceding first passing through modification, modification refers to the talcum powder：By commercially available talcum powder and its weight 4%
Surface modifier II be mixed to get, the surface modifier II compares 3.5 by barium hydroxide, sodium carbonate and KH550 according to weight:
1.5:30 ratio is mixed；
And for example, the filler containing aramid fiber rubber weight 10% in the rubber base-material, according to weight ratio, described filler is by 4.5 parts of seas
Afrodite suede, 1.5 parts of nano zinc powder, 12.5 parts of tetraethyl orthosilicates are made, and the preparation method of described filler is：According to weight ratio,
12.5 parts of tetraethyl orthosilicates are taken with deionized water according to 1:9 ratio mixing, then tetraethyl orthosilicate weight is sequentially added thereto
10% glacial acetic acid, the carbon dust of tetraethyl orthosilicate weight 5%, 4.5 parts of sepiolite cashmeres and 1.5 parts of nano zinc powder are well mixed to be carried out
Reaction, in course of reaction, every 20min to the ultrasonic wave 1min for applying frequency 360kHz in reaction system, after question response terminates
Ultrafiltration is carried out to reaction system and obtains solid powder, finally abundant calcination removing carbon dust is obtained final product under aerobic conditions by solid powder
To filler.
Claims (3)
1. a kind of compound abrasive rubber material, it is characterised in that：By the enhancing of rubber base-material and rubber base-material weight 20-25%
Rubber kneads 1h under the conditions of 170-180 DEG C and is made, wherein, according to weight ratio, the rubber base-material is by 40~50 parts of aramid fiber
Rubber, 10~20 parts of nylon fibre, 1~3 part of vulcanizing agent, 3~4 parts of accelerator, 7~9 parts of carbon black, 2~3 parts of carbon
Sour calcium and 1~2 part of talcum powder are kneaded under the conditions of 120~140 DEG C and formed；The enhancing rubber is fine by 10~12 parts of polyamide fibre
Dimension, 30~34 parts of fluorubber, 4~5 parts of carbon fiber, 2~3 parts of vulcanizing agent, 5~7 parts of carbon black, 1~2 part of aluminum oxide
Micro mist and 3~5 parts of reinforcing agent are kneaded under the conditions of 120~140 DEG C and formed, and according to weight ratio, the reinforcing agent is by 24-26 parts
Ludox, 3-5 parts of modified aluminas micro mist, 5-7 parts of modified hollow glass micropearl and 6-8 parts of modified nano-silica
Silicon is mixed, and the modified hollow glass micropearl refers to the surface modifier by commercially available hollow glass micropearl and its weight 3-5%
Filtering is dried and is obtained after 1-2h is stood after I mixing, surface modifier used I by KH550, ethanol, acetone and barium hydroxide according to
Weight compares 3-4:80:2-3:The ratio of 1-2 is mixed；The modified manometer silicon dioxide and modified aluminas micro mist are respectively
Commercially available nano silicon and alumina powder are mixed to get with the surface modifier II of its weight 3-5%, the surface is modified
Agent II compares 3-4 by barium hydroxide, sodium carbonate and KH550 according to weight:1-2:30 ratio is mixed.
2. a kind of compound abrasive rubber material according to claim 1, it is characterised in that：The talcum powder is using preceding
Modification is first passed through, modification refers to：Commercially available talcum powder is mixed to get with the surface modifier II of its weight 3-5%,
The surface modifier II compares 3-4 by barium hydroxide, sodium carbonate and KH550 according to weight:1-2:30 ratio is mixed.
3. a kind of compound abrasive rubber material according to claim 1, it is characterised in that：Contain in the rubber base-material
The filler of aramid fiber rubber weight 10%, according to weight ratio, described filler is by 4~5 parts of sepiolite cashmeres, 1~2 part of nano zinc powder, 10
~15 parts of tetraethyl orthosilicates are made, and the preparation method of described filler is：According to weight ratio, take 10~15 parts of tetraethyl orthosilicates and go
Ionized water is according to 1:The ratio mixing of 8-10, then the glacial acetic acid of tetraethyl orthosilicate weight 10%, positive silicic acid second are sequentially added thereto
The carbon dust of ester weight 5%, 4~5 parts of sepiolite cashmeres and 1~2 part of nano zinc powder are well mixed to be reacted, in course of reaction, often
Every 20min to the ultrasonic wave 1min for applying frequency 350-370kHz in reaction system, question response is carried out after terminating to reaction system
Ultrafiltration obtains solid powder, and finally by solid powder, abundant calcination removing carbon dust is to obtain filler under aerobic conditions.
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| CN107268383A (en) * | 2017-07-04 | 2017-10-20 | 河南科技大学 | A kind of wear-resisting high-elastic permeable place lawn for outdoor football |
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| CN107362521A (en) * | 2017-08-30 | 2017-11-21 | 河南科技大学 | A kind of physical culture standing long jump measurement apparatus |
| CN108017865A (en) * | 2017-12-04 | 2018-05-11 | 新沂博瑞工业设计有限公司 | A kind of preparation method of abrasive rubber |
| CN112760030A (en) * | 2021-02-01 | 2021-05-07 | 宁波革创新材料科技有限公司 | Wear-resistant high-strength coating and preparation method thereof |
| CN114752126A (en) * | 2022-05-13 | 2022-07-15 | 北京晶南实业有限公司 | High-wear-resistance composite rubber plate for belt conveyor roller and preparation method thereof |
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Inventor after: Zhang Xiaoli Inventor after: Li Yachao Inventor after: Wu Haotian Inventor after: Wang Shujuan Inventor after: Wei Fengjun Inventor after: Zhang Yanbin Inventor after: Jia Qiuli Inventor after: Mu Linying Inventor after: Liu Can Inventor after: Li Donghai Inventor before: Zhang Xiaohong Inventor before: Li Yachao Inventor before: Wu Haotian Inventor before: Wang Shujuan Inventor before: Wei Fengjun Inventor before: Zhang Yanbin Inventor before: Jia Qiuli Inventor before: Mu Linying Inventor before: Liu Can Inventor before: Li Donghai |
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Effective date of registration: 20190115 Address after: 467000 East Section of Construction Road in Pingdingshan City, Henan Province Applicant after: Pingdingshan Huabang Engineering Plastic Co., Ltd. Address before: 467200 Deng Lixiang group seven, Yexian County, Pingdingshan, Henan. Applicant before: Zhang Yanbin |
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