CN106049066A - Production method of hydrogenated nitrile and aramid impregnated cord - Google Patents
Production method of hydrogenated nitrile and aramid impregnated cord Download PDFInfo
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- CN106049066A CN106049066A CN201610389416.6A CN201610389416A CN106049066A CN 106049066 A CN106049066 A CN 106049066A CN 201610389416 A CN201610389416 A CN 201610389416A CN 106049066 A CN106049066 A CN 106049066A
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- impregnation
- deionized water
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- leaching
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
- C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
- C08G8/20—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with polyhydric phenols
- C08G8/22—Resorcinol
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/41—Phenol-aldehyde or phenol-ketone resins
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/02—Machine details; Auxiliary devices
- D07B7/14—Machine details; Auxiliary devices for coating or wrapping ropes, cables, or component strands thereof
- D07B7/145—Coating or filling-up interstices
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
- D06M2101/36—Aromatic polyamides
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses an impregnation formula of a hydrogenated nitrile and aramid impregnated cord. The impregnation formula is characterized by comprising a primary impregnation formula, a secondary impregnation formula and a tertiary impregnation formula, wherein the primary impregnation formula comprises, in parts by weight, 800-1,000 parts of an organic solvent and 10-35 parts of isocyanate, the secondary formula comprises, in parts by weight, RF (resorcinol formaldehyde) liquid resin and an RFL (resorcinol formaldehyde latex)-impregnation solution, and the tertiary formula comprises, in parts by weight, 600-800 parts of methylbenzene and 300-400 parts of CHEMLOK205.
Description
Technical field
The present invention relates to a kind of hydrogenated butyronitrile aramid fiber impregnation cord dipping formula, impregnation production method and gum dipping process.Belong to
Technical field in industry fabric.
Background technology
Hydrogenated nitrile-butadiene rubber (HNBR) has good oil resistant, heat-resisting, resistance to chemical corrosion, also has the resistance to ozone of excellence
Performance, higher incompressible permanent deformation performance, hydrogenated nitrile-butadiene rubber also has high intensity, high tear energy, wearability simultaneously
Can excellent characteristics, be condensation one of supereminent rubber of performance, current large-scale agricultural machinery conveyer belt require to have high-strength, wear-resisting,
Ageing-resistant and high and low temperature resistance, hydrogenated nitrile-butadiene rubber has the most vast application market.As its framework material, aramid fiber
It is the tec fiber of a kind of organic synthesis, has that density is little, elastic modelling quantity is big, intensity is high, it is little, high temperature resistant, wear-resisting, resistance to extend
The features such as impact, are the Novel framework materials of the rubbers such as adhesive tape sebific duct.Use aramid fiber industrial filament through plying, impregnation
The impregnation aramid cord produced etc. working procedure processing, can be widely used for the transmission bands such as Timing Belt, polywedge bet, automotive V-belt and produces
Product, have and gradually replace currently used glass cotton rope, the gesture of polyester cord.
Country accelerates the modernization of agricultural machinery to the support of agriculture-countryside-farmer's industry, has expedited the emergence of the prosperity of agricultural machinery product, and agriculture
Machine product high performance power transmission band is developed rapidly, and current hydrogenated butyronitrile aramid fiber impregnation cotton rope is substantially better than commonly owing to having
The high-low temperature resistant of CR aramid fiber impregnation cotton rope, wear-resisting and ageing-resistant performance index, just leading large-scale agricultural machinery conveyer belt to use new side
To.
Common aramid fiber impregnation cotton rope and NR CR rubber can accomplish preferable bonding force by usual RFL impregnation system, but
The HI SA highly saturated elastomer obtained through special hydrotreating by nitrile rubber due to HNBR rubber, general RFL impregnation
System is difficult to be suitable for the bonding requirement of HNBR rubber, it is necessary to carry out crosslinking Treatment by special dipping solution.Aramid fiber is due to vertically
Height-oriented crystallization, and the steric effect of phenyl ring, amide group is difficult to react with other atom or group, again because of
Aramid fiber surface lacks the functional group of activity, and the chance forming hydrogen bond is less, is difficult to form firm bonding, for this very with rubber
It is necessary improvement and develops a kind of novel gum dipping process method.
Summary of the invention
The present invention solves above-mentioned technical problem, be to provide a kind of hydrogenated butyronitrile aramid cord impregnation formula, impregnation raw
Product method and gum dipping process, it is characterised in that use the bonding force of the hydrogenated butyronitrile aramid cord of the method production and bonding to keep
Rate is high.
The technical scheme is that
The formula of the present invention includes first bath formula, the second bath formula and the 3rd bath formula, and described formula is according to weight portion such as
Under:
The formula of hydrogenated butyronitrile aramid fiber impregnation cotton rope one dipping solution, can carry out formula and production according to following weight portion:
One dipping solution formula is as follows: toluene: 800-1000, isocyanates: 10-35；
One dipping solution allotment is as follows:
1, retort is first put into toluene, open stirring；
2, isocyanates is slowly added in retort, and stirs 30 ± 5 minutes；Detection isocyanate content；
In two dipping solutions, RF resin liquid formula is as follows: deionized water: 160-200, sheet alkali: 6-8, resorcinol: 40-60, formaldehyde:
40-60；
In two dipping solutions, the allotment of RF resin liquid is as follows:
1, the weight portion specified by formula, puts into deionized water in a kettle.；
2, sodium hydroxide is dissolved in deionized water；It is configured to the aqueous solution of concentration 4-6%, renders to reactor；
3, solid resorcinol is slowly added in reactor；
4, it is slowly added dropwise formaldehyde, controls temperature with jacket water (J.W.), between keeping the temperature in reactor to be 22-25 DEG C；
5, during reaction, mixing speed is 500 ± 50rpm, reacts 1.5 ± 0.5 hours.
In two dipping solutions, RFl glue formula is as follows: RF liquid: 250-300, VP latex: 300-330, deionized water: 300-
330, carbon black water solution: 55-65, deionized water: 65-75；
In two dipping solutions, the allotment of RFl-dipping solution is as follows:
1, the weight portion specified by formula, puts into deionized water in blend tank and VP latex is stirred；
2, the RF resin liquid reacting end in retort is transplanted in blend tank, and continuously stirred；
3, transfer RF resin solution completed in 30 ± 5 minutes；
4, finally join in blend tank after sooty water solution and deionized water mix homogeneously；
5, stirring send cement dipping machine to use after being transferred to air conditioning room ripening 72 ± 6 hours after 1 ± 0.5 hour.
Three dipping solution formula are as follows: toluene: 600-800, CHEMLOK205:200-400；
Three dipping solution allotments are as follows:
1, the weight portion specified by formula, puts into toluene in blend tank；
2, CHEMLOK205 is slowly added to, stirs 1 ± 0.5 hour；
Gum dipping process is as follows:
Cement dipping machine uses the cement dipping machine with 4 dry heat treatment ovens；
Led out by wiring frame through magnetic eye after machine on aramid fiber retwist cylinder, then through tension bracket, glue groove, baking oven, finally enter
Up-coiler coiling and molding.
Cotton rope is impregnation in glue groove, uses the form of glue scraping plate frictioning to scrape off remaining slurry after impregnation；Aramid fiber precursor is Du
The K29AP of company of nation；Impregnation speed is 35 ± 10 ms/min；One district's oven temperature is 190 ± 10 DEG C；Two district's oven temperatures are 220
±10℃；Three district's oven temperatures are 230 ± 10 DEG C；Four district's oven temperatures are 110 ± 10 DEG C；0 it is stretched as between one district's baking oven ±
0.2%；It is stretched as 1 ± 0.2% between two district's baking ovens；It is stretched as 1.5 ± 0.2% between three district's baking ovens；0.5 it is stretched as between four district's baking ovens ±
0.2%。
Beneficial effects of the present invention: the crosslinking that aramid cord is formed by CHEMLOK205 adhesive specially and one or two leachings is anti-
Answer film, it is possible in sulfidation, form good bonding with HNBR rubber, make bonding force the highest more stable.Use the present invention
Between the hydrogenated butyronitrile aramid fiber impregnation cotton rope of described method production and rubber, there is the highest bonding force, can be used for operating mode and dislike very much
The application of the big machinery transmission band under bad environment, can effectively keep the high-low temperature resistant that conveyer belt is good, wear-resisting and resistance to ag(e)ing
Energy.
Detailed description of the invention
Embodiment 1:
The formula of the present invention includes first bath formula, the second bath formula and the 3rd bath formula, and described formula is according to weight portion such as
Under:
The formula of hydrogenated butyronitrile aramid fiber impregnation cotton rope one dipping solution, can carry out formula and production according to following weight portion:
One dipping solution formula is as follows: toluene: 975, isocyanates: 25；
One dipping solution allotment is as follows:
1, retort is first put into toluene, open stirring；
2, isocyanates is slowly added in retort, and stirs about 30 minutes；
In two dipping solutions, RF resin liquid formula is as follows: deionized water: 179.25, sheet alkali: 7.14, resorcinol: 47.78, formaldehyde:
46.05；
In two dipping solutions, the allotment of RF resin liquid is as follows:
1, the weight portion specified by formula, puts into deionized water in a kettle.；
2, sodium hydroxide is dissolved in deionized water；It is configured to the aqueous solution of concentration 4-6%, renders to reactor；
3, solid resorcinol is slowly added in reactor；
4, it is slowly added dropwise formaldehyde, controls temperature with jacket water (J.W.), between keeping the temperature in reactor to be 22-25 DEG C；
5, during reaction, mixing speed is 500 ± 50rpm, reacts 1.5 hours.
In two dipping solutions, RFl glue formula is as follows: RF liquid: 256.22, VP latex: 313.06, deionized water: 302.27,
Carbon black water solution: 60.4, deionized water: 71.19；
In two dipping solutions, the allotment of RFl-dipping solution is as follows:
1, the weight portion specified by formula, puts into deionized water in blend tank and VP latex is stirred；
2, the RF resin liquid reacting end in retort is transplanted in blend tank, and continuously stirred；
3, transfer RF resin solution completed in 30 minutes；
4, finally join in blend tank after sooty water solution and deionized water mix homogeneously；
5, stirring send cement dipping machine to use after being transferred to air conditioning room ripening 72 hours after 0.5 hour.
Three dipping solution formula are as follows: toluene: 700, CHEMLOK205:350；
Three dipping solution allotments are as follows:
1, the weight portion specified by formula, puts into toluene in blend tank；
2, CHEMLOK205 is slowly added to, stirs about 30 minutes；
Gum dipping process is as follows:
Cement dipping machine uses the cement dipping machine with 4 dry heat treatment ovens；
Led out by wiring frame through magnetic eye after machine on aramid fiber retwist cylinder, then through tension bracket, glue groove, baking oven, finally enter
Up-coiler coiling and molding.
Cotton rope is impregnation in glue groove, uses the form of glue scraping plate frictioning to scrape off remaining slurry after impregnation；Aramid fiber precursor is Du
The K29AP of company of nation；Impregnation speed is 35 ± 10 ms/min；One district's oven temperature is 190 ± 10 DEG C；Two district's oven temperatures are 220
±10℃；Three district's oven temperatures are 230 ± 10 DEG C；Four district's oven temperatures are 110 ± 10 DEG C；0 it is stretched as between one district's baking oven ±
0.2%；It is stretched as 1 ± 0.2% between two district's baking ovens；It is stretched as 1.5 ± 0.2% between three district's baking ovens；0.5 it is stretched as between four district's baking ovens ±
0.2%。
Embodiment 2:
The formula of the present invention includes first bath formula, the second bath formula and the 3rd bath formula, and described formula is according to weight portion such as
Under:
The formula of hydrogenated butyronitrile aramid fiber impregnation cotton rope one dipping solution, can carry out formula and production according to following weight portion:
One dipping solution formula is as follows: deionized water: 975, isocyanates: 25；
One dipping solution allotment is as follows:
1, retort is first put into toluene, open stirring；
2, isocyanates is slowly added in retort, and stirs about 30 minutes；
In two dipping solutions, RF resin liquid formula is as follows: deionized water: 179.25, sheet alkali: 7.14, resorcinol: 47.78, formaldehyde:
46.05；
In two dipping solutions, the allotment of RF resin liquid is as follows:
1, the weight portion specified by formula, puts into deionized water in a kettle.；
2, sodium hydroxide is dissolved in deionized water；It is configured to the aqueous solution of concentration 4-6%, renders to reactor；
3, solid resorcinol is slowly added in reactor；
4, it is slowly added dropwise formaldehyde, controls temperature with jacket water (J.W.), between keeping the temperature in reactor to be 22-25 DEG C；
5, during reaction, mixing speed is 500 ± 50rpm, reacts 1.5 hours.
In two dipping solutions, RFl glue formula is as follows: RF liquid: 256.22, VP latex: 313.06, deionized water: 302.27,
Carbon black water solution: 60.4, deionized water: 71.19；
In two dipping solutions, the allotment of RFl-dipping solution is as follows:
1, the weight portion specified by formula, puts into deionized water in blend tank and VP latex is stirred；
2, the RF resin liquid reacting end in retort is transplanted in blend tank, and continuously stirred；
3, transfer RF resin solution completed in 30 minutes；
4, finally join in blend tank after sooty water solution and deionized water mix homogeneously；
5, stirring send cement dipping machine to use after being transferred to air conditioning room ripening 72 hours after 0.5 hour.
Three dipping solution formula are as follows: toluene: 750, CHEMLOK205:350；
Three dipping solution allotments are as follows:
1, the weight portion specified by formula, puts into toluene in blend tank；
2, CHEMLOK205 is slowly added to, stirs 30 minutes；
Gum dipping process is as follows:
Cement dipping machine uses the cement dipping machine with 4 dry heat treatment ovens；
Led out by wiring frame through magnetic eye after machine on aramid fiber retwist cylinder, then through tension bracket, glue groove, baking oven, finally enter
Up-coiler coiling and molding.
Cotton rope is impregnation in glue groove, uses the form of glue scraping plate frictioning to scrape off remaining slurry after impregnation；Aramid fiber precursor is Du
The K29AP of company of nation；Impregnation speed is 35 ± 10 ms/min；One district's oven temperature is 190 ± 10 DEG C；Two district's oven temperatures are 220
±10℃；Three district's oven temperatures are 230 ± 10 DEG C；Four district's oven temperatures are 110 ± 10 DEG C；0 it is stretched as between one district's baking oven ±
0.2%；It is stretched as 1 ± 0.2% between two district's baking ovens；It is stretched as 1.5 ± 0.2% between three district's baking ovens；0.5 it is stretched as between four district's baking ovens ±
0.2%。
Claims (5)
1. the impregnation formula of a hydrogenated butyronitrile aramid fiber impregnation cotton rope, it is characterised in that: include a leaching formula, two leaching formula and three
Leaching formula, described formula is as follows according to weight portion: a leaching formula: organic solvent: 800-1000, isocyanates: 10-35；Two
Leaching formula: 1. RF resin liquid and 2. RFL-dipping solution；Three leaching formula: toluene: 600-800, CHEMLOK205:300-400.
The impregnation formula of a kind of hydrogenated butyronitrile aramid fiber impregnation cotton rope the most according to claim 1, it is characterised in that: 1. RF tree
The formula of fat liquid is as follows according to weight portion: deionized water: 160-200, sheet alkali: 6-8, resorcinol: 40-60, formaldehyde: 40-60.
The impregnation formula of a kind of hydrogenated butyronitrile aramid fiber impregnation cotton rope the most according to claim 1, it is characterised in that: 2.
The formula of RFL-dipping solution is as follows according to weight portion: RF liquid: 250-300, VP latex: 300-330, deionized water: 300-330,
Carbon black water solution: 55-65, deionized water: 65-75.
4. a production method for the impregnation of a kind of hydrogenated butyronitrile aramid fiber impregnation cotton rope as described in claim 1,2 or 3, its
It is characterised by: the glue production technology in a leaching formula is as follows: first, first puts into organic solvent toluene in retort；Second, will
Isocyanates is rendered to, in retort, stir；The production technology of the RF resin liquid in two leaching formula is as follows: first, by joining
The weight portion that square gauge is fixed, puts into deionized water in a kettle.；Second, sodium hydroxide is dissolved in deionized water, is configured to
The aqueous solution of concentration 4-6%, renders to reactor；3rd, solid resorcinol is slowly added in reactor；4th, slowly
Dropping formaldehyde, controls temperature with jacket water (J.W.), between keeping the temperature in reactor to be 22-25 DEG C；During reaction, mixing speed is
500 ± 50rpm, reacts 1.5 ± 0.5 hours；The production technology of the RFl-dipping solution in two leaching formula is as follows: specify by formula
Weight portion, blend tank is put into deionized water and VP latex is stirred, then retort will be reacted the RF resin of end
Liquid is transplanted in blend tank, and continuously stirred, and transfer RF resin solution completed at 30 ± 5 minutes, finally by sooty water solution and
Join after deionized water mix homogeneously in blend tank, after stirring 1 ± 0.5 hour, be transferred to air conditioning room ripening 72 ± 6 hours；Three
The glue production technology of leaching formula is as follows: by formulation weight part, put in blend tank by toluene, then CHEMLOK205 is slow
Add, stir 1 ± 0.5 hour.
The production method of the impregnation of a kind of hydrogenated butyronitrile aramid fiber impregnation cotton rope the most according to claim 4, it is characterised in that:
Described retort is jacket water (J.W.) insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610389416.6A CN106049066A (en) | 2016-06-06 | 2016-06-06 | Production method of hydrogenated nitrile and aramid impregnated cord |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610389416.6A CN106049066A (en) | 2016-06-06 | 2016-06-06 | Production method of hydrogenated nitrile and aramid impregnated cord |
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|---|---|
| CN106049066A true CN106049066A (en) | 2016-10-26 |
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ID=57169726
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| CN201610389416.6A Pending CN106049066A (en) | 2016-06-06 | 2016-06-06 | Production method of hydrogenated nitrile and aramid impregnated cord |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700206A (en) * | 2017-09-06 | 2018-02-16 | 安徽朗润新材料科技股份公司 | A kind of dipping solution for being used to improve EPDM rigid line rope bonding forces |
| CN109878974A (en) * | 2019-03-20 | 2019-06-14 | 青岛中维新材料有限公司 | A kind of aramid fiber conveyer belt |
| CN110066425A (en) * | 2019-03-20 | 2019-07-30 | 青岛中维新材料有限公司 | A kind of preparation method of impregnation aramid fiber short fibre vulcanizate |
| CN112458759A (en) * | 2020-10-12 | 2021-03-09 | 苏州考特茨工业纺织品有限公司 | Water-based hydrogenated nitrile rubber dipping solution for oil-resistant heat-resistant synchronous belt, preparation method of water-based hydrogenated nitrile rubber dipping solution and preparation process of dipped fabric |
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| CN104862972A (en) * | 2015-06-09 | 2015-08-26 | 浙江尤夫高新纤维股份有限公司 | Gum dipping formula for improving adhesive force of aramid fiber gum dipping cotton rope and production method thereof |
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| CN104862972A (en) * | 2015-06-09 | 2015-08-26 | 浙江尤夫高新纤维股份有限公司 | Gum dipping formula for improving adhesive force of aramid fiber gum dipping cotton rope and production method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700206A (en) * | 2017-09-06 | 2018-02-16 | 安徽朗润新材料科技股份公司 | A kind of dipping solution for being used to improve EPDM rigid line rope bonding forces |
| CN109878974A (en) * | 2019-03-20 | 2019-06-14 | 青岛中维新材料有限公司 | A kind of aramid fiber conveyer belt |
| CN110066425A (en) * | 2019-03-20 | 2019-07-30 | 青岛中维新材料有限公司 | A kind of preparation method of impregnation aramid fiber short fibre vulcanizate |
| CN112458759A (en) * | 2020-10-12 | 2021-03-09 | 苏州考特茨工业纺织品有限公司 | Water-based hydrogenated nitrile rubber dipping solution for oil-resistant heat-resistant synchronous belt, preparation method of water-based hydrogenated nitrile rubber dipping solution and preparation process of dipped fabric |
| CN112458759B (en) * | 2020-10-12 | 2023-03-31 | 苏州考特茨工业纺织品有限公司 | Water-based hydrogenated nitrile butadiene rubber impregnation liquid for oil-resistant and heat-resistant synchronous belt, preparation method of impregnation liquid and preparation process of impregnated cloth |
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Application publication date: 20161026 |