CN106188669A - A kind of bag coating compound of wear-resistant printing rubber roll and preparation method thereof - Google Patents
A kind of bag coating compound of wear-resistant printing rubber roll and preparation method thereof Download PDFInfo
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- CN106188669A CN106188669A CN201610585563.0A CN201610585563A CN106188669A CN 106188669 A CN106188669 A CN 106188669A CN 201610585563 A CN201610585563 A CN 201610585563A CN 106188669 A CN106188669 A CN 106188669A
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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
- C08L7/00—Compositions of natural rubber
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
nullThe invention discloses the bag coating compound of a kind of wear-resistant printing rubber roll，It is made up of the raw material of following weight parts: 1，2 methylimidazoles 0.3 0.4、Graphene oxide 10 14、N N-Hydroxysuccinimide 67、1 ethyl (3 dimethylaminopropyl) carbodiimide hydrochloride 10 12、P-aminobenzene sulfonic acid 79、Styrene 30 40、Potassium peroxydisulfate 0.1 0.2、Lanthanum chloride 0.3 0.4、Ethylenediaminetetraacetic acid 23、Carbon fiber 1.7 2、The ammonia 60 70 of 20 25%、Natural rubber 100 130、Aluminium stearate 23、Polymethyl acrylate 23、Lauryl mercaptan 23、Attapulgite 10 13、Saturated octadecanoyl amine 0.8 3、Hexamethyl cyclotrisiloxane 0.1 0.2、Sulfur 0.8 1、Vulcanization accelerator TMTD 0.8 1、Antioxidant 4010 12.The sizing material of the present invention has good wear resistence, and surface strength is high, and service life is long.
Description
Technical field
The present invention relates to printing rubber roll technical field, particularly relate to bag coating compound and the system thereof of a kind of wear-resistant printing rubber roll
Preparation Method.
Background technology
Printing rubber roll be gum elastic with metal roller core through the complex of certain processes, be widely used in
In various printing industries, and at present there is a lot of problems in the quality of printing rubber roll, and wearability is bad, often occur abrasion,
The phenomenon of broken hole, has had a strong impact on press quality, the most how to improve wear resistence and the mechanical property thereof of printing rubber roll, just seems
The most necessary；
The dilute raw material of graphite oxide is easy to get, cheap, is the ideal filler of polymer nanocomposites, in recent years, aoxidizes stone
The research of the dilute/polymer nanocomposites of ink is one of currently dilute about graphite study hotspot, is especially preparing
The dilute paper of unsupported graphite oxide and graphite dilute/polymer conductive nanometer compound material after, started to graphene oxide apply
The upsurge of research.
At present, along with preparing the maturation of the dilute technology of graphite oxide, people oneself synthesized various graphene oxide/polymer nano
Nano composite material, conventional polymeric matrix has polystyrene, polymethyl acrylate, polyaniline, polyacrylamide, poly-second
Dilute alcohol etc..But, it has been found that prepare graphite oxide dilute/polymer complex process present in subject matter be oxidation stone
Dilute being easy to of ink is reunited, and dispersibility inequality hooks in the polymer, the dilute combination interface situation with polymer of graphite oxide
The best, ultimately result in graphite oxide dilute/combination property of polymer composites is the highest, thus it is the most industrial to limit it
Application.The processing characteristics dilute for improving graphite oxide, people generally use the method that it is carried out functional modification, and achieve
Noticeable achievement in research, this provides a good thinking for preparing Graphene/polymer composites.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that the bag coating compound of a kind of wear-resistant printing rubber roll
And preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of bag coating compound of wear-resistant printing rubber roll, it is made up of the raw material of following weight parts:
1,2-methylimidazole 0.3-0.4, graphene oxide 10-14, N-hydroxy-succinamide 6-7,1-ethyl-(3-diformazan
Base aminopropyl) carbodiimide hydrochloride 10-12, p-aminobenzene sulfonic acid 7-9, styrene 30-40, potassium peroxydisulfate 0.1-0.2, chlorine
Change lanthanum 0.3-0.4, ethylenediaminetetraacetic acid 2-3, the ammonia 60-70 of carbon fiber 1.7-2,20-25%, natural rubber 100-130, hard
Fat acid aluminum 2-3, polymethyl acrylate 2-3, lauryl mercaptan 2-3, attapulgite 10-13, saturated octadecanoyl amine 0.8-3,
Hexamethyl cyclotrisiloxane 0.1-0.2, sulfur 0.8-1, Vulcanization accelerator TMTD 0.8-1, antioxidant 4010 1-2.
The preparation method of the bag coating compound of a kind of described wear-resistant printing rubber roll, comprises the following steps:
(1) above-mentioned aluminium stearate is joined in the deionized water of its weight 30-40 times, stir, add above-mentioned 20-25%
The 3-4% of weights of ammonia, insulation reaction 40-50 minute at 60-65 DEG C, it is dilute to add above-mentioned graphite oxide, stirs, takes out
Filter, removes filtrate, is dried completely at normal temperatures by filtering residue, obtains pretreating graphite alkene；
(2) by dilute for above-mentioned pretreating graphite DMF joining its weight 50-60 times, supersound process 20-
30 minutes, add 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, N-hydroxy-succinamide, stirring mixing
1.7-2 hour, adding p-aminobenzene sulfonic acid, under room temperature, stirring reaction 23-24 hour, washes with water 3-4 time, the most ultrasonic 10-
15 minutes, obtain sulfonated graphite dilute；
(3) by above-mentioned 1,2-methylimidazole joins in lauryl mercaptan, insulated and stirred 7-10 minute at 70-78 DEG C,
Add the deionized water of compound weight 50-60 times, stir, add above-mentioned sulfonated graphite octadecanoyl amine dilute, saturated,
100-200 rev/min is stirred 20-30 minute, obtains premix emulsion；
(4) by above-mentioned premix emulsion, styrene mixing, adding the deionized water of compound weight 27-30%, ultrasonic 10-15 divides
Clock, obtains sulfonation emulsion；
(5) above-mentioned ethylenediaminetetraacetic acid is joined in the ammonia of 20-25%, add lanthanum chloride, insulated and stirred 20-at 60-70 DEG C
30 minutes, add carbon fiber, heat-insulation soaking 1-2 hour, obtain rare earth modified carbon fiber solution；
(6) above-mentioned polymethyl acrylate is mixed with hexamethyl cyclotrisiloxane, insulated and stirred 10-20 minute at 60-65 DEG C,
Siloxanes must be esterified；
(7) in above-mentioned sulfonation emulsion, add potassium peroxydisulfate, stir, under nitrogen protection, 70-80 DEG C of insulated and stirred 5-6
Hour, it is cooled to room temperature, adds above-mentioned rare earth modified carbon fiber solution, supersound process 10-15 minute, sucking filtration, remove filtrate,
Filtering residue；
(8) by above-mentioned esterification siloxanes, attapulgite, filtering residue mixing, 600-700 rev/min is stirred 2-3 minute, obtains polymer and change
Property compounded mix；
(9) above-mentioned polymer modification compounded mix is mixed with natural rubber, send in banbury, banburying 40-at 65-90 DEG C
50s, the addition each raw material in addition to sulfur, mixing 10-12 minute, binder removal, it is cooled to less than 50 DEG C, puts in mill,
Add and remain each raw material, thin logical 3-5 time, to obtain final product.
The invention have the advantage that the sizing material of the present invention has a good wear resistence:
The edge of stannic oxide/graphene nano sheet contains substantial amounts of carboxylic group, at condensation reagent 1-ethyl-(3-dimethylamino third
Base) carbodiimide hydrochloride effect under, 1-ethyl-(3-dimethylaminopropyl) carbodiimide is first counter with carboxyl to be formed
The 0-acyl isourea intermediate product that can react with amine, N-hydroxy-succinamide plays the effect improving its stability, in the middle of this
Product generates amide with the p-aminobenzene sulfonic acid generation coupling reaction containing primary amine group further, obtains sulfonated graphene, sulphur
The state that functionalized graphene is peeled off in height is evenly distributed in polystyrene microsphere, and the graphite oxide after sulfonation modifying is dilute
Having stronger hydrophilic, improve the dispersibility in its water, the negative charge that sulfonate ion band is stronger simultaneously, in polymerization process
In, the reunion of himself can be effectively prevented, then initiator (potassium peroxydisulfate) first passes through electrostatic interaction and is adsorbed onto sulfonation
The surface of Graphene, then there is polyreaction in trigger monomer on its surface, when, after the many oligomers of deposition, hydrophobicity improves,
And reunite in aqueous phase, hydrophobic polymer then interacts after formation primary nuclei, the styrene list being dissolved in aqueous phase
Body is diffused into continuously in primary nuclei and participates in further polyreaction, and along with the carrying out of polyreaction, growth core is straight
Footpath constantly increases, and the coverage rate that graphite is dilute declines, and Stabilization declines, and now free in aqueous phase sulfonated graphite is dilute stronger
Under π-π the most often acts on, it is adsorbed on polystyrene surface, ultimately forms finely dispersed complex；
The sizing material of the present invention has a good mechanical property:
The present invention is also added into rare earth fiber, and the most surface treated carbon fiber is low due to its surface activity, it is difficult to formed effectively
Interfacial adhesion, therefore composite materials property is very poor, rubber matrix because of frictional heat effect be easy to produce adhesive wear, with
Carbon fiber produce and loosen, crack on interface produces stress and concentrates, and fatigue crack generates, and easily induction composite is further
Abrasion, the present invention uses rare earth modified carbon fiber to be combined in polymeric matrix so that combine tight between carbon fiber and polymeric matrix
Close, in friction process, major part load born by carbon fiber, and load is delivered to carbon fiber, carbon by interface effectively
Fiber effectively acts as the effect of support loads, and composite material surface entirety bears frrction load, and excellent interface cohesion makes it
Coefficient of friction and wear extent are affected little by the frequency that reciprocatingly slides.Rare earth element can occur with C, O, N of carbon fiber surface
Coordination chemistry, and be bonded, when carbon fiber and polystyrene with the organic active group generation chemical coordination in earth solution
Compound tense, can form strong high tenacity interface, thus improve finished product elastomeric material between carbon fiber surface and polystyrene
Mechanical property.
The sizing material of the present invention has good wear resistence, and surface strength is high, and service life is long.
Detailed description of the invention
A kind of bag coating compound of wear-resistant printing rubber roll, it is made up of the raw material of following weight parts:
1,2 methylimidazole 0.3, graphene oxide 10, N N-Hydroxysuccinimide 6,1 ethyl (3 dimethylaminopropyl) carbon two
Inferior amine salt hydrochlorate 10, p-aminobenzene sulfonic acid 7, styrene 30, potassium peroxydisulfate 0.1, lanthanum chloride 0.3, ethylenediaminetetraacetic acid 2, carbon are fine
The ammonia 60 of dimension 1.7,20%, natural rubber 100, aluminium stearate 2, polymethyl acrylate 2, lauryl mercaptan 2, attapulgite
10, saturated octadecanoyl amine 0.8, hexamethyl cyclotrisiloxane 0.1, sulfur 0.8, Vulcanization accelerator TMTD 0.8, antioxidant 4010 1.
The preparation method of the bag coating compound of a kind of described wear-resistant printing rubber roll, comprises the following steps:
(1) above-mentioned aluminium stearate is joined in the deionized water of its weight 30 times, stir, add the ammonia of above-mentioned 20%
The 3% of weight, insulation reaction 40 minutes at 60 DEG C, it is dilute to add above-mentioned graphite oxide, stirs, sucking filtration, removes filtrate, will
Filtering residue is dried completely at normal temperatures, obtains pretreating graphite alkene；
(2) by dilute for above-mentioned pretreating graphite DMF joining its weight 50 times, supersound process 20 minutes,
Add 1 ethyl (3 dimethylaminopropyl) carbodiimide hydrochloride, N N-Hydroxysuccinimide, stirring mixing 1.7 hours, add
P-aminobenzene sulfonic acid, under room temperature, stirring reaction 23 hours, wash with water 3 times, the most ultrasonic 10 minutes, obtain sulfonated graphite dilute；
(3) above-mentioned 1,2 methylimidazoles are joined in lauryl mercaptan, insulated and stirred 7 minutes at 70 DEG C, add mixing
The deionized water of material weight 50 times, stirs, adds above-mentioned sulfonated graphite octadecanoyl amine dilute, saturated, 100 revs/min of stirrings
20 minutes, obtain premix emulsion；
(4) by above-mentioned premix emulsion, styrene mixing, add the deionized water of compound weight 27%, ultrasonic 10 minutes, obtain sulphur
Change emulsion；
(5) being joined by above-mentioned ethylenediaminetetraacetic acid in the ammonia of 20%, add lanthanum chloride, at 60 DEG C, insulated and stirred 20 minutes, add
Enter carbon fiber, heat-insulation soaking 1 hour, obtain rare earth modified carbon fiber solution；
(6) above-mentioned polymethyl acrylate being mixed with hexamethyl cyclotrisiloxane, at 60 DEG C, insulated and stirred 10 minutes, obtain esterification
Siloxanes；
(7) in above-mentioned sulfonation emulsion, add potassium peroxydisulfate, stir, under nitrogen protection, 70 DEG C of insulated and stirred 5 hours,
It is cooled to room temperature, adds above-mentioned rare earth modified carbon fiber solution, supersound process 10 minutes, sucking filtration, remove filtrate, obtain filtering residue；
(8) by above-mentioned esterification siloxanes, attapulgite, filtering residue mixing, 600 revs/min are stirred 2 minutes, obtain polymer modification and are combined
Filler；
(9) being mixed with natural rubber by above-mentioned polymer modification compounded mix, send in banbury, at 65 DEG C, banburying 40s, adds
Enter each raw material in addition to sulfur, mixing 10 minutes, binder removal, it is cooled to less than 50 DEG C, puts in mill, add residue each
Raw material, thin logical 3 times, to obtain final product.
Performance test:
Hot strength: 13.9Mpa；
Elongation at break: 432.7%；
70 DEG C × 22h × 20% compression set: 16.1%；
70 DEG C × 70h air oven aging test:
Breaking strength reduction rate: 5.6%, elongation at break reduction rate: 8.5%.
Claims (2)
1. the bag coating compound of a wear-resistant printing rubber roll, it is characterised in that it is made up of the raw material of following weight parts:
1,2-methylimidazole 0.3-0.4, graphene oxide 10-14, N-hydroxy-succinamide 6-7,1-ethyl-(3-diformazan
Base aminopropyl) carbodiimide hydrochloride 10-12, p-aminobenzene sulfonic acid 7-9, styrene 30-40, potassium peroxydisulfate 0.1-0.2, chlorine
Change lanthanum 0.3-0.4, ethylenediaminetetraacetic acid 2-3, the ammonia 60-70 of carbon fiber 1.7-2,20-25%, natural rubber 100-130, hard
Fat acid aluminum 2-3, polymethyl acrylate 2-3, lauryl mercaptan 2-3, attapulgite 10-13, saturated octadecanoyl amine 0.8-3,
Hexamethyl cyclotrisiloxane 0.1-0.2, sulfur 0.8-1, Vulcanization accelerator TMTD 0.8-1, antioxidant 4010 1-2.
2. the preparation method of the bag coating compound of a wear-resistant printing rubber roll as claimed in claim 1, it is characterised in that include
Following steps:
(1) above-mentioned aluminium stearate is joined in the deionized water of its weight 30-40 times, stir, add above-mentioned 20-25%
The 3-4% of weights of ammonia, insulation reaction 40-50 minute at 60-65 DEG C, it is dilute to add above-mentioned graphite oxide, stirs, takes out
Filter, removes filtrate, is dried completely at normal temperatures by filtering residue, obtains pretreating graphite alkene；
(2) by dilute for above-mentioned pretreating graphite DMF joining its weight 50-60 times, supersound process 20-
30 minutes, add 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, N-hydroxy-succinamide, stirring mixing
1.7-2 hour, adding p-aminobenzene sulfonic acid, under room temperature, stirring reaction 23-24 hour, washes with water 3-4 time, the most ultrasonic 10-
15 minutes, obtain sulfonated graphite dilute；
(3) by above-mentioned 1,2-methylimidazole joins in lauryl mercaptan, insulated and stirred 7-10 minute at 70-78 DEG C,
Add the deionized water of compound weight 50-60 times, stir, add above-mentioned sulfonated graphite octadecanoyl amine dilute, saturated,
100-200 rev/min is stirred 20-30 minute, obtains premix emulsion；
(4) by above-mentioned premix emulsion, styrene mixing, adding the deionized water of compound weight 27-30%, ultrasonic 10-15 divides
Clock, obtains sulfonation emulsion；
(5) above-mentioned ethylenediaminetetraacetic acid is joined in the ammonia of 20-25%, add lanthanum chloride, insulated and stirred 20-at 60-70 DEG C
30 minutes, add carbon fiber, heat-insulation soaking 1-2 hour, obtain rare earth modified carbon fiber solution；
(6) above-mentioned polymethyl acrylate is mixed with hexamethyl cyclotrisiloxane, insulated and stirred 10-20 minute at 60-65 DEG C,
Siloxanes must be esterified；
(7) in above-mentioned sulfonation emulsion, add potassium peroxydisulfate, stir, under nitrogen protection, 70-80 DEG C of insulated and stirred 5-6
Hour, it is cooled to room temperature, adds above-mentioned rare earth modified carbon fiber solution, supersound process 10-15 minute, sucking filtration, remove filtrate,
Filtering residue；
(8) by above-mentioned esterification siloxanes, attapulgite, filtering residue mixing, 600-700 rev/min is stirred 2-3 minute, obtains polymer and change
Property compounded mix；
(9) above-mentioned polymer modification compounded mix is mixed with natural rubber, send in banbury, banburying 40-at 65-90 DEG C
50s, the addition each raw material in addition to sulfur, mixing 10-12 minute, binder removal, it is cooled to less than 50 DEG C, puts in mill,
Add and remain each raw material, thin logical 3-5 time, to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585563.0A CN106188669A (en) | 2016-07-25 | 2016-07-25 | A kind of bag coating compound of wear-resistant printing rubber roll and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610585563.0A CN106188669A (en) | 2016-07-25 | 2016-07-25 | A kind of bag coating compound of wear-resistant printing rubber roll and preparation method thereof |
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| CN106188669A true CN106188669A (en) | 2016-12-07 |
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| CN201610585563.0A Withdrawn CN106188669A (en) | 2016-07-25 | 2016-07-25 | A kind of bag coating compound of wear-resistant printing rubber roll and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807496A (en) * | 2006-01-12 | 2006-07-26 | 上海交通大学 | Preparation method of rare earth modified carbon fiber/ polypropylene composite material |
| CN1886451A (en) * | 2003-10-20 | 2006-12-27 | 尤尼罗亚尔化学公司 | Rubber compositions and methods for decreasing the tangent delta value and abrasion index |
-
2016
- 2016-07-25 CN CN201610585563.0A patent/CN106188669A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886451A (en) * | 2003-10-20 | 2006-12-27 | 尤尼罗亚尔化学公司 | Rubber compositions and methods for decreasing the tangent delta value and abrasion index |
| CN1807496A (en) * | 2006-01-12 | 2006-07-26 | 上海交通大学 | Preparation method of rare earth modified carbon fiber/ polypropylene composite material |
Non-Patent Citations (1)
| Title |
|---|
| 张丽园: ""磺化石墨烯和磺化碳纳米管为稳定剂的乳液聚合和分散聚合研究"", 《中国博士学位论文全文数据库 工程科技I辑》 * |
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