CN107573552A - A kind of heat resistant type rubber conveyer belt rubber cover - Google Patents
A kind of heat resistant type rubber conveyer belt rubber cover Download PDFInfo
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Abstract
The invention discloses a kind of heat resistant type rubber conveyer belt rubber cover, belong to conveyer belt technical field.Natural rubber is added in plasticator to mix with nitrile rubber and plasticated, must be plasticated epoxy glue, the epoxy glue that will plasticate, which first adds, adds banburying in banbury, then again by softening agent, reinforcing agent, antiager, which is added in banbury, continues banburying, slice, cooling, stand, obtain a stage elastomeric compound, one stage elastomeric compound is moved into banbury, and vulcanizing agent is added into banbury, accelerator, modified graphite, modified carbon fiber, ethylene glycol and toluenesulfonic acid, banburying, slice, cooling, obtain two-stage elastomeric compound, two-stage elastomeric compound is added into vulcanizer, vulcanization, discharging, produce heat resistant type rubber conveyer belt rubber cover.Rubber conveyer belt rubber cover prepared by the present invention has excellent heat resistance and crack resistance.
Description
Technical field
The invention discloses a kind of heat resistant type rubber conveyer belt rubber cover, belong to conveyer belt technical field.
Background technology
High temperature-resistance conveyor belt is a kind of conveyer belt.Provided according to HG/T2297 standards, 3 types of heat resistance conveyor belt point
Number.1 type：It is resistant to be not higher than 100 DEG C of test temperatures, code name T1；2 types：It is resistant to be not higher than 120 DEG C of test temperatures, code name T2；3 types：
It is resistant to be not higher than 150 DEG C of test temperatures, code name T3.Difference after main performance requirements hardness ageing and before aging is less than ± 20；Draw
Change rate of strength is stretched less than 30%；Elongation rate of tensile failure rate of change is less than 50%.It is higher that heat resistance conveyor belt is mainly used in transport temperature
Material, it is widely used in the industries such as metallurgy, building materials, chemical industry, such as pelletizing ore, clinker, sintering deposit.Heat resistance conveyor belt by
3 parts form：1）Rubber cover；2）Buffering adhesive（Also known as transition zone）；3）Canvas wipes rubberizing.Rubber cover in adhesive tape upper and lower surface, with
The high-temperature material of transport is in contact, and does not require nothing more than heat-resist（150 DEG C of long-term uses are stood, or higher than 150 DEG C in short-term
Between use）, but also must wear-resisting, ageing-resistant cracking.
In use, rubber cover directly contacts heat resistance conveyor belt with high-temperature material, to rubber cover anti-wear performance, it is resistance to bend
It is very high to scratch the requirements such as performance, bond properties and service life.By conventional formulation design concept, heat resistance conveyor belt rubber cover first should
Consider the ageing-resistant performance under high temperature, i.e., rubber cover physical property declines less under the condition of high temperature, better heat stability, delays to carbonize
Occur etc. aging phenomenon.But actually use situation from production practices for many years and user and find that under high temperature dynamic operation condition, reduction is covered
Lid glue crack performance is also one of key factor for extending heat resistance conveyor belt service life.In addition, conveyer belt coating rubber with
High-temperature material contacts for a long time, and the inflammability of its rubber is also a big potential safety hazard, and traditional high-strength anti-flaming rubber generally uses
Halogen containing flame-retardant prepares flame retardant rubber, is with high flame retardant the advantages of halogen fire-retardant product, but big because being produced when it burns
Smog, toxicant, strong corrosive material are measured, endangers environment and the health of the mankind.Therefore, low halogen, low cigarette, highly effective flame-retardant are prepared
Adhesive tape is research direction for a long time.
Therefore, conventional conveyor belt rubber cover fire resistance, heat-resistant aging and crack resistance energy are improved, turn into its development with
Using urgent problem to be solved.
The content of the invention
The present invention solves the technical problem of：Inflammable for conventional conveyor belt rubber cover, easy heat ageing and cracking are existing
As the problem of serious, there is provided a kind of heat resistant type rubber conveyer belt rubber cover.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of heat resistant type rubber conveyer belt rubber cover, is made up of the raw material of following parts by weight：80~90 parts of natural rubbers, 50
~60 parts of nitrile rubbers, 20~30 parts of softening agents, 10~15 parts of vulcanizing agents, 30~45 portions of reinforcing agents, 3~8 parts of age resistor, 8~
12 parts of accelerator, 18~25 parts of modified graphites, 12~16 parts of modified carbon fibers, 8~12 parts of ethylene glycol, 3~5 parts to toluene sulphur
Acid；
The preparation method of the modified graphite is：
By graphite and oxidation mixed liquor hybrid reaction, oxidized graphite mixed liquor is obtained, by oxidized graphite mixed liquor concentrated by rotary evaporation, obtains oxygen
Graphite, by graphite oxide and the mixed grinding of chlorinated paraffin 70, obtain modified graphite；
The preparation method of the modified carbon fiber is：
By carbon fiber and salpeter solution hybrid reaction, filtering, carbon oxide fiber is obtained, carbon oxide fiber is mixed with coupling agent, stirred
After mixing reaction, filter, dry, obtain modified carbon fiber；
The preparation method of the heat resistant type rubber conveyer belt rubber cover is：
Natural rubber is added in plasticator to mix with nitrile rubber and plasticated, must plasticate epoxy glue, and the epoxy glue that will plasticate first adds
Banburying in banbury, then by softening agent, reinforcing agent, antiager, which is added in banbury, continues banburying, slice, cools down, stands, obtain one
Stage elastomeric compound, a stage elastomeric compound is moved into banbury, and vulcanizing agent is added into banbury, accelerator, modified graphite, changed
Property carbon fiber, ethylene glycol and toluenesulfonic acid, banburying, slice, cooling, obtain two-stage elastomeric compound, by two-stage elastomeric compound add sulphur
Change machine, vulcanize, discharging, produce heat resistant type rubber conveyer belt rubber cover.
The softening agent is machine oil, pine tar, any one in coumarone indene resin or Petropols.
The vulcanizing agent is sulphur, any one in vulcanizing agent PDM or sulfur monochloride.
The reinforcing agent is any one in carbon black N220, carbon black N330 or carbon black N550.
The age resistor is antioxidant 4020, any one in antioxidant 4010 or antioxidant 264.
The accelerator is captax, any one in accelerant CZ or diphenylguanidine.
It is described oxidation mixed liquor preparation method be：By the salpeter solution of mass fraction 50~65%, mass fraction 70~
80% sulfuric acid solution and potassium permanganate in mass ratio 2：1：1 mixes.
The coupling agent is silane resin acceptor kh-550, any in silane coupler KH-560 or Silane coupling reagent KH-570
It is a kind of.
The beneficial effects of the invention are as follows：
（1）The present invention use modified graphite when preparing heat resistant type rubber conveyer belt rubber cover, modified graphite be graphite oxide with
The mixing gained of chlorinated paraffin 70, first, modified graphite is added in internal mixing pass in rubber conveyer belt rubber cover system, due to
Graphite is changed into single chip architecture after oxidation, and density is smaller, and rubber conveyer belt rubber cover surface can be floated up in sulfidation, and
And in the presence of ethylene glycol and p-methyl benzenesulfonic acid, one layer of graphite protective layer can be formed on rubber conveyer belt rubber cover surface, kept away
Exempt from hot material to contact with the direct of rubber conveyer belt rubber cover, simultaneously because the heat-resisting and thermal conductivity that graphite is excellent, so that protecting
Sheath possesses preferable stability, and then is improved the heat resistance of product, secondly as containing in the modified graphite added
Chlorinated paraffin 70, because the molecular weight of chlorinated paraffin 70 is smaller, rubber conveyer belt rubber cover surface can be floated up in sulfidation,
Graphite oxide is further promoted to float up to rubber conveyer belt rubber cover surface, and because chlorinated paraffin 70 has anti-flammability and increasing
Plasticity so that the fire retardancy and plasticity of rubber conveyer belt rubber cover are improved；
（2）The present invention uses modified carbon fiber when preparing heat resistant type rubber conveyer belt rubber cover, on the one hand, carbon fiber is through changing
Surface is connected to a number of coupling agent after property, after being added in rubber conveyer belt rubber cover system, can make carbon fiber
Can preferably it be combined with rubber macromolecule chain, and the carbon black in system can realize the further filling to carbon fiber hole, make
The filling consistency of filler effectively improves in rubbery system, so that the intensity of product and freedom from cracking ability are carried
Height, on the other hand, carbon fiber is before modification through peroxidating, and active group is contained on surface, and thermal conductivity is preferable, with being modified stone
, can be defeated in rubber in the presence of ethylene glycol and p-methyl benzenesulfonic acid after ink is added in rubber conveyer belt rubber cover system together
Send in band rubber cover system and form thermal conducting path so that product can quick heat radiating, and then improve the heat resistance of product.
Embodiment
By graphite and oxidation mixed liquor in mass ratio 1：5~1：10 are mixed in beaker, and beaker is moved into the aobvious constant temperature that tests the speed
Magnetic stirring apparatus, in temperature be 50~55 DEG C, rotating speed be 280~320r/min under conditions of, constant temperature stirring reaction 45~
70min, oxidized graphite mixed liquor is obtained, oxidized graphite mixed liquor is moved into Rotary Evaporators, be 70~80 DEG C in temperature, pressure is
Constant temperature concentrates 150~180min under conditions of 600~800Pa, obtains graphite oxide, and graphite oxide and chlorinated paraffin 70 are pressed into quality
Than 1：2~1：3 mixing add ball mill, are 10 by ball material mass ratio：1~20：1 addition zirconium oxide ball milling pearl, ball milling mixing 1~
2h, obtain modified graphite；It is 55~65% salpeter solutions in mass ratio 1 by carbon fiber and mass fraction：6~1：10 are mixed in flask
In, flask immigration digital display is tested the speed constant temperature blender with magnetic force, is 45~55 DEG C in temperature, rotating speed is 300~340r/min bar
Under part, constant temperature 45~70min of stirring reaction, filtering, filter cake is obtained, produces carbon oxide fiber, carbon oxide fiber and coupling agent are pressed
Mass ratio 1：8~1：12 mixing, after soaking 3~4h, filtering, pretreatment carbon oxide fiber is obtained, pretreatment carbon oxide fiber is moved
Enter drying box, under conditions of temperature is 80~90 DEG C, 15~30min of freeze-day with constant temperature, obtain modified carbon fiber；In parts by weight
Meter, takes 80~90 parts of natural rubbers successively, 50~60 parts of nitrile rubbers, 20~30 parts of softening agents, 10~15 parts of vulcanizing agents, 30~
45 portions of reinforcing agents, 3~8 parts of age resistor, 8~12 parts of accelerator, 18~25 parts of modified graphites, 12~16 parts of modified carbon fibers, 8~
12 parts of ethylene glycol, 3~5 parts of p-methyl benzenesulfonic acid, natural rubber and nitrile rubber are sequentially added in plasticator, in temperature be 50~
Plasticated 18~25min under conditions of 60 DEG C, and must plasticate epoxy glue, and the epoxy glue that will first plasticate is moved into banbury, 2~4min of banburying
Afterwards, then by softening agent, reinforcing agent, antiager add in banbury, 5~15min of banburying, it is 125~140 to control dump temperature
DEG C, it is 8~11mm slices through turning refining, by thickness, obtains stage pretreatment elastomeric compound, stage pretreatment elastomeric compound is moved into drum
Wind drying box, after drying 60~70min under room temperature condition, 8~10h is stood, obtains a stage elastomeric compound；One stage was kneaded
Glue, vulcanizing agent, accelerator, modified graphite, modified carbon fiber, ethylene glycol and toluenesulfonic acid add banbury, are kneaded 5~8min,
It is 120~128 DEG C to control dump temperature, is 8~11mm slices through turning refining, by thickness, two-stage pretreatment elastomeric compound is obtained, by two
Stage pretreatment elastomeric compound moves into air dry oven, after drying 65~80min under room temperature condition, obtains two-stage elastomeric compound；Will
Two-stage elastomeric compound add vulcanizer, in temperature be 150~170 DEG C, pressure be 15~16MPa under conditions of, vulcanization 15~
30min, discharging, produces heat resistant type rubber conveyer belt rubber cover.The softening agent is machine oil, pine tar, coumarone indene resin or stone
Any one in oleoresin.The vulcanizing agent is sulphur, any one in vulcanizing agent PDM or sulfur monochloride.The reinforcing agent is
Any one in carbon black N220, carbon black N330 or carbon black N550.The age resistor is antioxidant 4020, antioxidant 4010 or anti-old
Any one in agent 264.The accelerator is captax, any one in accelerant CZ or diphenylguanidine.The oxidation mixing
The preparation method of liquid is：By the salpeter solution of mass fraction 50~65%, the sulfuric acid solution and permanganic acid of mass fraction 70~80%
Potassium in mass ratio 2：1：1 mixes.The coupling agent is silane resin acceptor kh-550, and silane coupler KH-560 or silane are even
Join any one in agent KH-570.
Example 1
By graphite and oxidation mixed liquor in mass ratio 1：10 are mixed in beaker, and beaker immigration digital display is tested the speed temperature constant magnetic stirring
Device, it is 55 DEG C in temperature, under conditions of rotating speed is 320r/min, constant temperature stirring reaction 70min, obtains oxidized graphite mixed liquor, will
Oxidized graphite mixed liquor moves into Rotary Evaporators, is 80 DEG C in temperature, and constant temperature concentrates 180min under conditions of pressure is 800Pa,
Graphite oxide is obtained, by graphite oxide and chlorinated paraffin 70 in mass ratio 1：3 mixing add ball mill, are 20 by ball material mass ratio：1
Zirconium oxide ball milling pearl is added, ball milling mixing 2h, obtains modified graphite；It is that 65% salpeter solution presses quality by carbon fiber and mass fraction
Than 1：10 are mixed in flask, and flask immigration digital display is tested the speed constant temperature blender with magnetic force, in temperature be 55 DEG C, rotating speed 340r/
Under conditions of min, constant temperature stirring reaction 70min, filtering, filter cake is obtained, produces carbon oxide fiber, by carbon oxide fiber and coupling agent
In mass ratio 1：12 mixing, after soaking 4h, filtering, pretreatment carbon oxide fiber is obtained, pretreatment carbon oxide fiber is moved into drying
Case, under conditions of temperature is 90 DEG C, freeze-day with constant temperature 30min, obtain modified carbon fiber；Count in parts by weight, take 90 parts of days successively
T PNR, 60 parts of nitrile rubbers, 30 parts of softening agents, 15 parts of vulcanizing agents, 45 portions of reinforcing agents, 8 parts of age resistor, 12 parts of accelerator, 25
Part modified graphite, 16 parts of modified carbon fibers, 12 parts of ethylene glycol, 5 parts of p-methyl benzenesulfonic acid, natural rubber is added successively with nitrile rubber
Enter in plasticator, plasticate 25min under conditions of being 60 DEG C in temperature, and must plasticate epoxy glue, and the epoxy glue that will first plasticate moves into banburying
In machine, after banburying 4min, then by softening agent, reinforcing agent, antiager is added in banbury, banburying 15min, controls the dump temperature to be
140 DEG C, be 11mm slices through turning refining, by thickness, obtains stage pretreatment elastomeric compound, and stage pretreatment elastomeric compound is moved into drum
Wind drying box, after drying 70min under room temperature condition, 10h is stood, obtains a stage elastomeric compound；By a stage elastomeric compound, vulcanization
Agent, accelerator, modified graphite, modified carbon fiber, ethylene glycol and toluenesulfonic acid add banbury, are kneaded 8min, control dumping temperature
Spend for 128 DEG C, be 11mm slices through turning refining, by thickness, obtain two-stage pretreatment elastomeric compound, elastomeric compound shifting will be pre-processed the two-stage
Enter air dry oven, after drying 80min under room temperature condition, obtain two-stage elastomeric compound；Two-stage elastomeric compound is added into vulcanizer,
It is 170 DEG C in temperature, under conditions of pressure is 16MPa, vulcanizes 30min, discharging, produce heat resistant type rubber conveyer belt rubber cover.
The softening agent is machine oil.The vulcanizing agent is sulphur.The reinforcing agent is carbon black N220.The age resistor is age resistor
4020.The accelerator is captax.It is described oxidation mixed liquor preparation method be：By the salpeter solution of mass fraction 65%,
The sulfuric acid solution and potassium permanganate in mass ratio 2 of mass fraction 80%：1：1 mixes.The coupling agent is silane coupler
KH-550。
Example 2
By graphite and oxidation mixed liquor in mass ratio 1：10 are mixed in beaker, and beaker immigration digital display is tested the speed temperature constant magnetic stirring
Device, it is 55 DEG C in temperature, under conditions of rotating speed is 320r/min, constant temperature stirring reaction 70min, obtains oxidized graphite mixed liquor, will
Oxidized graphite mixed liquor moves into Rotary Evaporators, is 80 DEG C in temperature, and constant temperature concentrates 180min under conditions of pressure is 800Pa,
Graphite oxide is obtained, by graphite oxide and chlorinated paraffin 70 in mass ratio 1：3 mixing add ball mill, are 20 by ball material mass ratio：1
Zirconium oxide ball milling pearl is added, ball milling mixing 2h, obtains modified graphite；Count in parts by weight, take 90 parts of natural rubbers, 60 parts of fourths successively
Nitrile rubber, 30 parts of softening agents, 15 parts of vulcanizing agents, 45 portions of reinforcing agents, 8 parts of age resistor, 12 parts of accelerator, 25 parts of modified graphites, 12
Part ethylene glycol, 5 parts of p-methyl benzenesulfonic acid, natural rubber and nitrile rubber is sequentially added in plasticator, in the bar that temperature is 60 DEG C
Plasticated 25min under part, and must plasticate epoxy glue, and the epoxy glue that will first plasticate is moved into banbury, after banburying 4min, then by softening agent,
Reinforcing agent, antiager are added in banbury, and banburying 15min, it is 140 DEG C to control dump temperature, is gone out through turning refining, by thickness for 11mm
Piece, stage pretreatment elastomeric compound is obtained, stage pretreatment elastomeric compound is moved into air dry oven, dried under room temperature condition
After 70min, 10h is stood, obtains a stage elastomeric compound；By a stage elastomeric compound, vulcanizing agent, accelerator, modified graphite, ethylene glycol and
Toluenesulfonic acid adds banbury, is kneaded 8min, and it is 128 DEG C to control dump temperature, is 11mm slices through turning refining, by thickness, obtains two
Stage pre-processes elastomeric compound, will pre-process elastomeric compound the two-stage and move into air dry oven, after drying 80min under room temperature condition,
Obtain two-stage elastomeric compound；By two-stage elastomeric compound add vulcanizer, in temperature be 170 DEG C, pressure be 16MPa under conditions of, sulphur
Change 30min, discharging, produce heat resistant type rubber conveyer belt rubber cover.The softening agent is machine oil.The vulcanizing agent is sulphur.Institute
It is carbon black N220 to state reinforcing agent.The age resistor is antioxidant 4020.The accelerator is captax.The oxidation mixed liquor
Preparation method be：By the salpeter solution of mass fraction 65%, the sulfuric acid solution and potassium permanganate of mass fraction 80% are in mass ratio
2：1：1 mixes.The coupling agent is silane resin acceptor kh-550.
Example 3
It is 65% salpeter solution in mass ratio 1 by carbon fiber and mass fraction：10 are mixed in flask, and flask is moved into digital display surveys
Fast constant temperature blender with magnetic force, it is 55 DEG C in temperature, under conditions of rotating speed is 340r/min, constant temperature stirring reaction 70min, filters,
Filter cake is obtained, carbon oxide fiber is produced, by carbon oxide fiber and coupling agent in mass ratio 1：12 mixing, after soaking 4h, filtering, obtain pre-
Carbon oxide fiber is handled, pretreatment carbon oxide fiber is moved into drying box, under conditions of temperature is 90 DEG C, freeze-day with constant temperature
30min, obtain modified carbon fiber；Count in parts by weight, take 90 parts of natural rubbers successively, 60 parts of nitrile rubbers, 30 parts of softening agents, 15
Part vulcanizing agent, 45 portions of reinforcing agents, 8 parts of age resistor, 12 parts of accelerator, 16 parts of modified carbon fibers, 12 parts of ethylene glycol, 5 parts to toluene
Sulfonic acid, natural rubber and nitrile rubber are sequentially added in plasticator, plasticate 25min under conditions of being 60 DEG C in temperature, must mould
Epoxy glue is refined, the epoxy glue that will first plasticate is moved into banbury, after banburying 4min, then adds close by softening agent, reinforcing agent, antiager
In mill, banburying 15min, it is 140 DEG C to control dump temperature, is 11mm slices through turning refining, by thickness, and it is mixed to obtain stage pretreatment
Refining glue, stage pretreatment elastomeric compound is moved into air dry oven, after drying 70min under room temperature condition, 10h is stood, obtains one
Stage elastomeric compound；One stage elastomeric compound, vulcanizing agent, accelerator, modified carbon fiber, ethylene glycol and toluenesulfonic acid are added into banburying
Machine, 8min is kneaded, it is 128 DEG C to control dump temperature, is 11mm slices through turning refining, by thickness, obtains two-stage pretreatment elastomeric compound,
Elastomeric compound will be pre-processed the two-stage and move into air dry oven, after drying 80min under room temperature condition, obtain two-stage elastomeric compound；Will
Two-stage elastomeric compound adds vulcanizer, is 170 DEG C in temperature, under conditions of pressure is 16MPa, vulcanizes 30min, discharging, produce
Heat resistant type rubber conveyer belt rubber cover.The softening agent is machine oil.The vulcanizing agent is sulphur.The reinforcing agent is carbon black
N220.The age resistor is antioxidant 4020.The accelerator is captax.It is described oxidation mixed liquor preparation method be：Will
The salpeter solution of mass fraction 65%, the sulfuric acid solution and potassium permanganate in mass ratio 2 of mass fraction 80%：1：1 mixes.Institute
It is silane resin acceptor kh-550 to state coupling agent.
Example 4
By graphite and oxidation mixed liquor in mass ratio 1：10 are mixed in beaker, and beaker immigration digital display is tested the speed temperature constant magnetic stirring
Device, it is 55 DEG C in temperature, under conditions of rotating speed is 320r/min, constant temperature stirring reaction 70min, obtains oxidized graphite mixed liquor, will
Oxidized graphite mixed liquor moves into Rotary Evaporators, is 80 DEG C in temperature, and constant temperature concentrates 180min under conditions of pressure is 800Pa,
Obtain graphite oxide；It is 65% salpeter solution in mass ratio 1 by carbon fiber and mass fraction：10 are mixed in flask, and flask is moved into
Digital display tests the speed constant temperature blender with magnetic force, in temperature be 55 DEG C, under conditions of rotating speed is 340r/min, constant temperature stirring reaction 70min,
Filtering, obtains filter cake, produces carbon oxide fiber, by carbon oxide fiber and coupling agent in mass ratio 1：12 mixing, after soaking 4h, mistake
Filter, obtains pretreatment carbon oxide fiber, and pretreatment carbon oxide fiber is moved into drying box, under conditions of temperature is 90 DEG C, constant temperature
30min is dried, obtains modified carbon fiber；Count in parts by weight, take 90 parts of natural rubbers, 60 parts of nitrile rubbers, 30 parts of softenings successively
Agent, 15 parts of vulcanizing agents, 45 portions of reinforcing agents, 8 parts of age resistor, 12 parts of accelerator, 25 parts of graphite oxides, 16 parts of modified carbon fibers, 12
Part ethylene glycol, 5 parts of p-methyl benzenesulfonic acid, natural rubber and nitrile rubber is sequentially added in plasticator, in the bar that temperature is 60 DEG C
Plasticated 25min under part, and must plasticate epoxy glue, and the epoxy glue that will first plasticate is moved into banbury, after banburying 4min, then by softening agent,
Reinforcing agent, antiager are added in banbury, and banburying 15min, it is 140 DEG C to control dump temperature, is gone out through turning refining, by thickness for 11mm
Piece, stage pretreatment elastomeric compound is obtained, stage pretreatment elastomeric compound is moved into air dry oven, dried under room temperature condition
After 70min, 10h is stood, obtains a stage elastomeric compound；One stage elastomeric compound, vulcanizing agent, accelerator, graphite oxide, carbon modified is fine
Dimension, ethylene glycol and toluenesulfonic acid add banbury, are kneaded 8min, and it is 128 DEG C to control dump temperature, is through turning refining, by thickness
11mm slices, two-stage pretreatment elastomeric compound is obtained, elastomeric compound will be pre-processed the two-stage and move into air dry oven, under room temperature condition
After drying 80min, two-stage elastomeric compound is obtained；By two-stage elastomeric compound add vulcanizer, in temperature be 170 DEG C, pressure 16MPa
Under conditions of, vulcanize 30min, discharging, produce heat resistant type rubber conveyer belt rubber cover.The softening agent is machine oil.The vulcanization
Agent is sulphur.The reinforcing agent is carbon black N220.The age resistor is antioxidant 4020.The accelerator is captax.It is described
Oxidation mixed liquor preparation method be：By the salpeter solution of mass fraction 65%, the sulfuric acid solution and permanganic acid of mass fraction 80%
Potassium in mass ratio 2：1：1 mixes.The coupling agent is silane resin acceptor kh-550.
Comparative example：The conveyer belt rubber cover of Luoyang rubber technology Co., Ltd production.
The heat resistant type rubber conveyer belt rubber cover of the gained of example 1 to 4 and comparative example product are subjected to performance detection, specific inspection
Survey method is as follows：
Thermal aging property：Tested by GB/T3512, condition is 150 DEG C × 168h；
Tear resistance is tested：Carried out according to GB/T529, draw speed 500mm/min；
Fire resistance：Oxygen index (OI) is tested according to MT450.
Specific testing result is as shown in table 1：
Table 1
From the testing result of table 1, heat resistant type rubber conveyer belt rubber cover prepared by technical solution of the present invention has both excellent resistance
Performance, heat aging property and freedom from cracking ability are fired, is had broad prospects in the development of industry.
Claims (8)
- A kind of 1. heat resistant type rubber conveyer belt rubber cover, it is characterised in that：It is made up of the raw material of following parts by weight：80~90 Part natural rubber, 50~60 parts of nitrile rubbers, 20~30 parts of softening agents, 10~15 parts of vulcanizing agents, 30~45 portions of reinforcing agents, 3~8 Part age resistor, 8~12 parts of accelerator, 18~25 parts of modified graphites, 12~16 parts of modified carbon fibers, 8~12 parts of ethylene glycol, 3~5 Part p-methyl benzenesulfonic acid；The preparation method of the modified graphite is：By graphite and oxidation mixed liquor hybrid reaction, oxidized graphite mixed liquor is obtained, by oxidized graphite mixed liquor concentrated by rotary evaporation, obtains oxygen Graphite, by graphite oxide and the mixed grinding of chlorinated paraffin 70, obtain modified graphite；The preparation method of the modified carbon fiber is：By carbon fiber and salpeter solution hybrid reaction, filtering, carbon oxide fiber is obtained, carbon oxide fiber is mixed with coupling agent, stirred After mixing reaction, filter, dry, obtain modified carbon fiber；The preparation method of the heat resistant type rubber conveyer belt rubber cover is：Natural rubber is added in plasticator to mix with nitrile rubber and plasticated, must plasticate epoxy glue, and the epoxy glue that will plasticate first adds Banburying in banbury, then by softening agent, reinforcing agent, antiager, which is added in banbury, continues banburying, slice, cools down, stands, obtain one Stage elastomeric compound, a stage elastomeric compound is moved into banbury, and vulcanizing agent is added into banbury, accelerator, modified graphite, changed Property carbon fiber, ethylene glycol and toluenesulfonic acid, banburying, slice, cooling, obtain two-stage elastomeric compound, by two-stage elastomeric compound add sulphur Change machine, vulcanize, discharging, produce heat resistant type rubber conveyer belt rubber cover.
- A kind of 2. heat resistant type rubber conveyer belt rubber cover according to claim 1, it is characterised in that：The softening agent is machine Any one in oil, pine tar, coumarone indene resin or Petropols.
- A kind of 3. heat resistant type rubber conveyer belt rubber cover according to claim 1, it is characterised in that：The vulcanizing agent is sulphur Any one in sulphur, vulcanizing agent PDM or sulfur monochloride.
- A kind of 4. heat resistant type rubber conveyer belt rubber cover according to claim 1, it is characterised in that：The reinforcing agent is charcoal Any one in black N220, carbon black N330 or carbon black N550.
- A kind of 5. heat resistant type rubber conveyer belt rubber cover according to claim 1, it is characterised in that：The age resistor is anti- Old agent 4020, any one in antioxidant 4010 or antioxidant 264.
- A kind of 6. heat resistant type rubber conveyer belt rubber cover according to claim 1, it is characterised in that：The accelerator is rush Enter agent M, any one in accelerant CZ or diphenylguanidine.
- A kind of 7. heat resistant type rubber conveyer belt rubber cover according to claim 1, it is characterised in that：The oxidation mixed liquor Preparation method be：By the salpeter solution of mass fraction 50~65%, the sulfuric acid solution and potassium permanganate of mass fraction 70~80% In mass ratio 2：1：1 mixes.
- A kind of 8. heat resistant type rubber conveyer belt rubber cover according to claim 1, it is characterised in that：The coupling agent is silicon Any one in alkane coupling agent KH-550, silane coupler KH-560 or Silane coupling reagent KH-570.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112662029A (en) * | 2020-12-24 | 2021-04-16 | 无锡宝通科技股份有限公司 | General-purpose fabric core flame-retardant oil-resistant adhesive for conveyer belt and preparation method thereof |
| CN114716741A (en) * | 2022-03-16 | 2022-07-08 | 太原理工大学 | Modified styrene-butadiene rubber, preparation method and application thereof, covering rubber, and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585934A (en) * | 2008-05-23 | 2009-11-25 | 北京化工大学 | Low-smoke and halogen-free fire-retardant rubber material for covering layer of conveyor belt and preparation method thereof |
| CN102304240A (en) * | 2011-10-11 | 2012-01-04 | 无锡宝通带业股份有限公司 | Heat-resistant and wear-resistant conveyor belt covering rubber and preparation method thereof |
| CN105504804A (en) * | 2015-12-30 | 2016-04-20 | 上海普利特复合材料股份有限公司 | Halogen-free flame-retardant carbon fiber-reinforced polyamide composite material and preparation method thereof |
| CN106118597A (en) * | 2016-06-29 | 2016-11-16 | 晋江凯燕新材料科技有限公司 | The friction material of transmission braking and goods |
| CN106336581A (en) * | 2016-08-27 | 2017-01-18 | 无锡宝通科技股份有限公司 | Ablation-resistant anti-aging cover for conveying belt and preparation method thereof |
-
2017
- 2017-10-10 CN CN201710933698.6A patent/CN107573552A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585934A (en) * | 2008-05-23 | 2009-11-25 | 北京化工大学 | Low-smoke and halogen-free fire-retardant rubber material for covering layer of conveyor belt and preparation method thereof |
| CN102304240A (en) * | 2011-10-11 | 2012-01-04 | 无锡宝通带业股份有限公司 | Heat-resistant and wear-resistant conveyor belt covering rubber and preparation method thereof |
| CN105504804A (en) * | 2015-12-30 | 2016-04-20 | 上海普利特复合材料股份有限公司 | Halogen-free flame-retardant carbon fiber-reinforced polyamide composite material and preparation method thereof |
| CN106118597A (en) * | 2016-06-29 | 2016-11-16 | 晋江凯燕新材料科技有限公司 | The friction material of transmission braking and goods |
| CN106336581A (en) * | 2016-08-27 | 2017-01-18 | 无锡宝通科技股份有限公司 | Ablation-resistant anti-aging cover for conveying belt and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112662029A (en) * | 2020-12-24 | 2021-04-16 | 无锡宝通科技股份有限公司 | General-purpose fabric core flame-retardant oil-resistant adhesive for conveyer belt and preparation method thereof |
| CN114716741A (en) * | 2022-03-16 | 2022-07-08 | 太原理工大学 | Modified styrene-butadiene rubber, preparation method and application thereof, covering rubber, and preparation method and application thereof |
| CN114716741B (en) * | 2022-03-16 | 2023-06-16 | 太原理工大学 | Modified styrene-butadiene rubber, preparation method and application thereof, and covering rubber, and preparation method and application thereof |
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Application publication date: 20180112 |