CN105602126B - A kind of low-rolling-resistance nano-rubber composite conveyer belt coating rubber and preparation method thereof - Google Patents
A kind of low-rolling-resistance nano-rubber composite conveyer belt coating rubber and preparation method thereof Download PDFInfo
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- CN105602126B CN105602126B CN201610107074.4A CN201610107074A CN105602126B CN 105602126 B CN105602126 B CN 105602126B CN 201610107074 A CN201610107074 A CN 201610107074A CN 105602126 B CN105602126 B CN 105602126B
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/32—Belts or like endless load-carriers made of rubber or plastics
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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
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention provides a kind of low-rolling-resistance nano-rubber composite conveyer belt coating rubber and preparation method thereof, its component and parts by weight are：The parts by weight of blend rubber 100, the parts by weight of AN composite assistants 10 50, the parts by weight of crosslinking agent 1 10, the parts by weight of reinforcing agent 10 80, the parts by weight of age resistor 15, the parts by weight of softening agent 5 40；The blend rubber includes butadiene rubber and ethylene propylene diene rubber, and mass ratio is 30 70:70‑30.Composite strength is mixed by mechanical blending method, prepares polymer rubber nano composite material rubber cover, then the composite is compound with framework material, prepare low-rolling-resistance rubber conveyer belt.New A N composite assistants are added in the present invention, both the impression deformation of rubber cover had been greatly reduced, the comprehensive physical mechanical performance of rubber cover and the service life of conveyer belt are improved again so that the conveyer belt on conveyer reduces rolling resistance and saved, and product cost is high.
Description
Technical field
The invention belongs to technical field of polymer materials, and in particular to a kind of low-rolling-resistance nano-rubber composite is defeated
Send band rubber cover and preparation method thereof.
Background technology
Rubber conveyer belt be the important component of conveyer, especially heat resistance conveyor belt be widely used in steel, electric power,
The fields such as cement, chemical industry.How to reduce heat resistant rubber conveyer belt impression deformation on a conveyor and reduce conveyer belt with it is defeated
The rolling resistance between machine is sent, is one of the important research direction of conveyer belt industry scientific and technical personnel.
Show that rubber conveyer belt and conveyed material produce pressure on converyor roller by computer dynamic stimulating simulation
Notch distortion is the principal element (account for conveyer running resistance 60%) for producing rolling resistance.Therefore, how to reduce rubber defeated
Sending between the conveyer belt and conveyer with the impression deformation in running, made again has suitable advance frictional force, is rubber
Conveyer belt reduces the important breakthrough of rolling resistance.
The content of the invention
The invention aims to solve the technical problem of the impression deformation in rubber conveyer belt running, it is proposed that
A kind of low-rolling-resistance nano-rubber composite conveyer belt coating rubber and preparation method thereof；One kind is additionally provided by the covering
Low-rolling-resistance rubber conveyer belt prepared by glue.
A kind of low-rolling-resistance nano-rubber composite conveyer belt coating rubber, its component and parts by weight are：Blend rubber
100 parts by weight, AN composite assistant 10-50 parts by weight, crosslinking agent 1-10 parts by weight, reinforcing agent 10-80 parts by weight, age resistor 1-5
Parts by weight, softening agent 5-40 parts by weight；The blend rubber includes butadiene rubber and ethylene propylene diene rubber, ethylene propylene diene rubber and
The mass ratio of butadiene rubber is 30-70:70-30.
Further, described AN composite assistants include organic nano layered silicate, nano silicon, coupling
Agent, organic active agent, the mass ratio of four kinds of components is 3-10：10-30：5-10：5-10.
Further, the preparation method of AN composite assistants is：1) coupling agent and organic active agent are added to by proportioning and received
In rice silica auxiliary agent, heat and carry out high-speed stirred, the nano silicon pre-processed after cooling；2) received organic
Rice phyllosilicate is added in the nano silicon by pretreatment, is carried out high-speed physical and is stirred, is obtained after cooling
AN composite assistants.
Further, heating-up temperature is 130-140 DEG C, mixing speed 800-1000r/min in the step 1), and the time is
10-20min；Mixing speed 800-1000r/min in the step 2).
Further, the organic active agent refers to titanate ester activating agent, and the coupling agent is silane coupler.
Further, the crosslinking agent is peroxide crosslinking agent and its carries sulphur body；The age resistor is nonox
Class, to the basic Diamines of dioxane, secondary diarylamine class rubber antioxidant；The softening agent be petroleum operation oil, naphthenic oil or
Dibutyl phthalate.
A kind of preparation method of low-rolling-resistance nano-rubber composite conveyer belt coating rubber, step are：1) in banburying
The conjunction refining glue of ethylene propylene diene rubber and butadiene rubber is added in machine, sequentially adds composite assistant, reinforcing agent, age resistor, softening agent,
It is kneaded, discharge bottom sheet；2) after sizing material placement is cooled to normal temperature, crosslinking agent, heat refining 3-10min are added on opening rubber mixing machine
Afterwards, thin logical 6-10 times under 1-2mm roll spacings, bottom sheet is stand-by, obtains the conveyer belt coating rubber of the present invention.
Further, mixing process is that 5-15min is kneaded under 20-40r/min rotating speeds in the step 1), is then adjusted to
Rotating speed is 45-60r/min, is kneaded 8-15min.
A kind of low-rolling-resistance rubber conveyer belt, it is to cover the low-rolling-resistance nano-rubber composite conveyer belt
Glue is compound with framework material, prepares low-rolling-resistance rubber conveyer belt.
Further, the framework material is science fabric or wire rope skeleton.
Compared with prior art, advantage of the invention is：1) present invention be using the excellent butadiene rubber of anti-wear performance with
The good ethylene propylene diene rubber of heat resistance and glue based on being used as, two kinds of rubber performances are learnt from other's strong points to offset one's weaknesses, has both been played along fourth rubber
The wear-resisting excellent characteristic of glue, has played the characteristics of ethylene propylene diene rubber is heat-resisting good again, and base has been accomplished fluently for heat resistant rubber conveyer belt
This basis；2) present invention proposes a kind of new AN composite assistants, the impression deformation of rubber cover has both been greatly reduced, again
Improve the comprehensive physical mechanical performance of rubber cover and the service life of conveyer belt so that the conveyer belt on conveyer reduces rolling
Dynamic resistance and save, product cost is high；(3) conveyer belt coating rubber is prepared by the method for mechanical blending, can not changed now
The production of rubber cover and conveyer belt is carried out on the premise of having conveyer belt refining glue and production technology, technique is simple, and production cost is low, easily
Realize industrialization.
Embodiment
Technical scheme is described in further detail with reference to embodiment.
A kind of low-rolling-resistance nano-rubber composite conveyer belt coating rubber, its component and parts by weight are：Blend rubber
100 parts by weight, AN composite assistant 10-50 parts by weight, crosslinking agent 1-10 parts by weight, reinforcing agent 10-80 parts by weight, age resistor 1-5
Parts by weight, softening agent 5-40 parts by weight, the component that can also include other improvement performances are some.The blend rubber includes having
The excellent butadiene rubber of anti-wear performance and the good ethylene propylene diene rubber of heat resistance；The matter of ethylene propylene diene rubber and butadiene rubber
It is 30-70 to measure ratio:70-30.
The blend rubber and AN composite assistants, crosslinking agent, reinforcing agent, age resistor and softening agent are passed through into mechanical mixture side
Nano-rubber composite is prepared in method.Again by the nano-rubber composite with framework material is compound prepares conveyer belt；
The framework material is science fabric or wire rope skeleton.
The preparation of the nano-rubber composite：Using variable ratio frequency changer speed governing internal rubber mixer, ternary second is firstly added
The conjunction refining glue of third rubber and butadiene rubber, sequentially adds AN composite assistants, reinforcing agent, age resistor, softening agent, in 20-40r/min
5-15min is kneaded under rotating speed, it is 45-60r/min to be then adjusted to rotating speed, is kneaded 8-15min, and discharge bottom sheet.Sizing material, which is placed, (to be recovered
Dynamic fatigue) be cooled to normal temperature after, then crosslinking agent is added on opening rubber mixing machine, after heat refining 5-15min, in 1-2mm roll spacings
Under it is thin logical 6-10 times, bottom sheet is stand-by.
Wherein described AN composite assistants refer to organic modified sheet silicate, nano silicon, coupling agent, organic work
The compound of property agent；The mass ratio of four kinds of components is 3-10：10-30：5-10：5-10.
The preparation method of the AN composite assistants is：
1) coupling agent and organic active agent are added in nanometer titanium dioxide silicon additive by proportioning, are heated to 130-140 DEG C,
And high-speed stirred 10-20min is carried out, and rotating speed 800-1000r/min, the nano silicon pre-processed after cooling；Through
The silica surface activity of pretreatment is big, fabulous with rubber mass wellability；And hysteresis loss is small, the pressure to reducing complex
Notch distortion and reduction rolling resistance effect are obvious；
2) organic modified sheet silicate is added in the nano silicon of above-mentioned pretreatment, carries out high-speed physical and stir
Mix uniformly, rotating speed 800-1000r/min, AN composite assistants are obtained after cooling.
Wherein described organic active agent refers to titanate ester activating agent, and the coupling agent is silane coupler.
Wherein described reinforcing agent refers to the rubber reinforcing filler for being applied to rubber clone used, such as carbon black.Described friendship
Connection agent refers to peroxide and its carries sulphur body.Described age resistor refers to be applied to used rubber clone phenylnaphthalene amine, right
The basic Diamines of dioxane, secondary diarylamine class rubber antioxidant etc., as 4010NA (N- isopropyls-N '-diphenyl-para-phenylene diamine),
DED (N, N '-diphenylethylene-diamine).Described softening agent refers to be applied to butadiene rubber/ethylene propylene diene rubber blend compounds
RX, such as petroleum operation oil, naphthenic oil mineral oil；The chemical synthesis softening agent such as dibutyl phthalate.
Embodiment 1-9
The present embodiment illustrates this hair so that ethylene propylene diene rubber/suitable fourth blend compounds is the conveyer belt coating rubbers of main material as an example
The preparation method and performance of bright rubber composite fabric core conveyor belt rubber cover.
1st, raw material component：(A) ethylene propylene diene rubber/along fourth (mass ratio 70/30) blend rubber, (B) AN composite assistants,
(C) crosslinking agent, (D) reinforcing agent, (E) age resistor, (F) softening agent, basic recipe such as table 1.
2nd, described AN composite assistants refer to organic modified sheet silicate, nano silicon, coupling agent, organic active
The compound of agent, the mass ratio of four kinds of components is 5：20：8：8.
The preparation method of the AN composite assistants is：1) coupling agent and organic active agent are added to nano-silica by proportioning
In SiClx auxiliary agent, 130 DEG C are heated to, and carries out high-speed stirred 15min, rotating speed 900r/min, is pre-processed after cooling
Nano silicon；2) organic modified sheet silicate is added in the nano silicon of above-mentioned pretreatment, carried out at a high speed
Physical agitation is uniform, rotating speed 900r/min, AN composite assistants is obtained after cooling.
Wherein described organic modified sheet silicate refer to intercalator, decentralized medium and surfactant etc. by from
The organic montmorillonite nano material of the processing such as son exchange.Wherein described organic active agent refers to titanate ester activating agent, such as
Commercial prod TMC201/TMC311/TMC105, the coupling agent are silane coupler, such as commercial prod Si69/
NQ188/MOS/NQ885/KH550。
3rd, the preparation of rubber composite：On the internal rubber mixer of variable ratio frequency changer speed governing, be firstly added butadiene rubber and
Ethylene propylene diene rubber, composite assistant, reinforcing agent, age resistor, softening agent are sequentially added, be kneaded under 30r/min rotating speeds
10min, it is 50r/min to be then adjusted to rotating speed, is kneaded 10min, and discharge bottom sheet.After sizing material placement is cooled to normal temperature, then in opening
Crosslinking agent (peroxide etc.) is added on formula rubber mixing machine, after heat refining 5min, thin logical 6-10 times under 1-2mm roll spacings, bottom sheet is stand-by.
The embodiment of table 1 and comparative example composition of raw materials (parts by weight)
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Example 8 | Example 9 | Contrast 1 | |
| Ethylene propylene diene rubber | 70 | 70 | 70 | 70 | 70 | 60 | 50 | 40 | 30 | 70 |
| Butadiene rubber | 30 | 30 | 30 | 30 | 30 | 40 | 50 | 60 | 70 | 30 |
| Crosslink agent DCP | 7 | 7 | 7 | 7 | 7 | 1 | 3 | 5 | 10 | 7 |
| Vulcanization accelerator TMTD | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.4 | 0.6 | 1.0 | 1.2 | 0.8 |
| Altax | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.8 | 1.6 | 1.4 | 1.3 | 1.5 |
| Zinc oxide | 5 | 5 | 5 | 5 | 5 | 3 | 4 | 6 | 7 | 5 |
| Stearic acid | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.2 | 1.4 | 1.6 | 1.8 | 1.5 |
| N234 carbon blacks | 35 | 35 | 35 | 35 | 35 | 10 | 20 | 60 | 80 | 35 |
| Age resistor | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 4 | 5 | 3 |
| Naphthenic oil | 13 | 13 | 13 | 13 | 13 | 5 | 20 | 30 | 40 | 13 |
| Composite assistant | 10 | 20 | 30 | 40 | 50 | 30 | 30 | 30 | 30 | 0 |
Indicate：Crosslink agent DCP in said components：Cumyl peroxide；Vulcanization accelerator TMTD：The double sulphur of the sulphur of N, N- tetramethyl two
Carbonyl amine；Altax：The thio Dibenzo thiazoles of 2,2'- bis-.
Embodiment 10
The nano-rubber composite conveyer belt coating rubber that embodiment 1-9 is prepared carries out physical and mechanical properties inspection
Test.
Test piece is crosslinked：Vulcanize 30min at 158 DEG C on 60 tons of vulcanizing presses.
Physical and mechanical properties is tested：Carried out according to national standard.
Gained assay is as shown in table 2.
The result of the test of table 2
AN composite assistants in the present invention include organic nano layered silicate, nano silicon, coupling agent, organic
Activating agent, wherein organic nano phyllosilicate, nano silicon are answered after specific process is handled, then with elastomeric material
Close, phyllosilicate can be evenly dispersed in rubber in the form of nanoscale twins and nano silicon is by mechanical shear stress
In matrix, effective infiltration with rubber is realized, forms rubber/nano composite material, then is crosslinked by chemical heat, forms low rolling
The macromolecular elastomer of dynamic resistance and comprehensive physical good mechanical performance.From table 2, added in elastomeric material (>10wt%
Parts by weight) NEW TYPE OF COMPOSITE auxiliary agent, may be such that rubber mass reduces impression deformation under active force, and its comprehensive physical machinery
Performance (tensile strength, anti-wear performance, tear resistance) etc. is significantly improved, and manufacturing process performance is constant.Wherein
After adding 30wt% composite assistant in embodiment 3, its fissipation factor have dropped 21.4% (remarks：Conventional fissipation factor tan δ
Value characterizes the size of rolling resistance indirectly, and tan δ values are smaller, the rolling resistance of material is smaller.Fissipation factor tan δ values are
0.1013, suitable with the value of low rolling resistance tyre), it is effectively reduced pressure of the rubber elastomer conveyer belt under stress
Notch distortion, while reduce the rolling resistance of conveyer belt and save.Meanwhile its tensile strength improves 23%, tearing strength improves
27.7%, abrasion reduce by 31%, and hardness improves 11.1%, and the raising of comprehensive physical mechanical performance causes the service life of conveyer belt
Extended.
Above example is only several in the several preferred embodiment of the present invention, it is noted that the invention is not restricted to
Above-described embodiment；For the person of ordinary skill of the art, still can be to the technical scheme described in previous embodiment
Modify, or equivalent substitution is carried out to which part technical characteristic；And these modifications or substitutions, do not make relevant art side
The essence of case departs from the spirit and scope of claimed technical solution of the invention.
Claims (5)
1. a kind of low-rolling-resistance nano-rubber composite conveyer belt coating rubber, it is characterised in that its component and parts by weight are：
The parts by weight of blend rubber 100, AN composite assistant 10-50 parts by weight, crosslinking agent 1-10 parts by weight, reinforcing agent 10-80 parts by weight, prevent
Old agent 1-5 parts by weight, softening agent 5-40 parts by weight；The blend rubber includes butadiene rubber and ethylene propylene diene rubber, ternary second
The mass ratio of third rubber and butadiene rubber is 30-70:70-30；
Described AN composite assistants include organic nano layered silicate, nano silicon, coupling agent, organic active agent,
The mass ratio of four kinds of components is 3-10：10-30：5-10：The preparation method of 5-10, AN composite assistant is：1）By coupling agent and have
Machine activating agent is added in nanometer titanium dioxide silicon additive by proportioning, is heated and is carried out high-speed stirred, heating-up temperature 130-140
DEG C, mixing speed 800-1000r/min, time 10-20min, the nano silicon pre-processed after cooling；2）To have
Machine nano layered silicate is added in the nano silicon by pretreatment, is carried out high-speed physical and is stirred, stirring speed
800-1000r/min is spent, AN composite assistants are obtained after cooling；
The organic active agent refers to titanate ester activating agent, and the coupling agent is silane coupler, and the crosslinking agent is peroxide
Compound class crosslinking agent and its load sulphur body, the age resistor is phenylnaphthalene amine, p dialkyl benzene Diamines, secondary diarylamine class
Rubber antioxidant, the softening agent are petroleum operation oil, naphthenic oil or dibutyl phthalate.
A kind of 2. preparation side of low-rolling-resistance nano-rubber composite conveyer belt coating rubber according to claim 1
Method, it is characterised in that step is：1）The conjunction refining glue of ethylene propylene diene rubber and butadiene rubber is added in banbury, is sequentially added
Composite assistant, reinforcing agent, age resistor, softening agent, it is kneaded, discharge bottom sheet；2）After sizing material placement is cooled to normal temperature, in open refining
Add crosslinking agent on glue machine, after heat refining 3-10min, thin logical 6-10 times under 1-2mm roll spacings, bottom sheet is stand-by, obtains conveyer belt and covers
Lid glue.
A kind of 3. preparation side of low-rolling-resistance nano-rubber composite conveyer belt coating rubber according to claim 2
Method, it is characterised in that the step 1）Middle mixing process is that 5-15min is kneaded under 20-40r/min rotating speeds, is then adjusted to turn
Speed is 45-60r/min, is kneaded 8-15min.
4. a kind of low-rolling-resistance rubber conveyer belt, it is characterised in that by low-rolling-resistance nanometer according to claim 1
Rubber composite conveyer belt coating rubber is compound with framework material, prepares low-rolling-resistance rubber conveyer belt.
5. a kind of low-rolling-resistance rubber conveyer belt according to claim 4, it is characterised in that the framework material is change
Learn fabric or wire rope skeleton.
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| CN201610107074.4A CN105602126B (en) | 2016-02-26 | 2016-02-26 | A kind of low-rolling-resistance nano-rubber composite conveyer belt coating rubber and preparation method thereof |
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