CN108976509A - A kind of oil resistant unitary-core flame-resistant conveying belt rubber cover and preparation method thereof - Google Patents
A kind of oil resistant unitary-core flame-resistant conveying belt rubber cover and preparation method thereof Download PDFInfo
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- CN108976509A CN108976509A CN201810665879.XA CN201810665879A CN108976509A CN 108976509 A CN108976509 A CN 108976509A CN 201810665879 A CN201810665879 A CN 201810665879A CN 108976509 A CN108976509 A CN 108976509A
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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
- C08L9/02—Copolymers with acrylonitrile
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- 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
The present invention provides a kind of oil resistant unitary-core flame-resistant conveying belt rubber covers, component including following parts by weight: 6,250 70 ~ 80 parts of nitrile rubber, 20 ~ 30 parts of neoprene M40, 10 ~ 20 parts of nitrile silicone rubber, 3 ~ 8 parts of nano zine oxide, 1 ~ 3 part of stearic acid, 0.8 ~ 2 part of accelerator NS, 0.8 ~ 2 part of Vulcanization accelerator TMTD, 1 ~ 2 part of the horizontal powder of sulphur, 0.5 ~ 1 part of anti-aging agent RD, 0.5 ~ 2 part of antioxidant MC445, 15 ~ 30 parts of o-phthalic acid dibutyl ester, 45 ~ 55 parts of carbon black N330, 5 ~ 8 parts of fire-retardant complexing agent, 25 ~ 35 parts of barium sulfate, 5 ~ 10 parts of calcium oxide, 5 ~ 12 parts of activated magnesia.Oil resistant unitary-core flame-resistant conveying belt rubber cover of the invention is added some oil-proof compositions and is made based on nitrile rubber, neoprene, has very high oil resistivity at normal temperature, can be used for the conveyor belt covering that belt carcass is fabric.
Description
Technical field
The invention belongs to conveyer belt preparation technical fields, and in particular to a kind of oil resistant unitary-core flame-resistant conveying belt rubber cover and its
Preparation method.
Background technique
Conveyer belt is for playing carrying in conveyer and transporting the rubber and fiber, metal composite of material, either
Plastics and the compound product of fabric.When transporting some materials containing mineral oil, coating is easy oily General Purpose Rubber conveyer belt
Intrusion is swollen, and conveyer belt service life is caused substantially to shorten.It is therefore desirable to propose that a kind of conveyer belt that oil resistant is fire-retardant covers
Lid glue is to prevent oil immersion from entering in conveyer belt.
Summary of the invention
Based on the above prior art, the purpose of the present invention is to provide a kind of oil resistant unitary-core flame-resistant conveying belt rubber cover and its
Preparation method, the formula by changing conveyer belt coating rubber glue make it have the performance that oil resistant is invaded, are transporting to extend conveyer belt
Oiliness material is sent to transport the service life under material.
In order to achieve the goal above, the technical solution adopted by the present invention are as follows: a kind of oil resistant unitary-core flame-resistant conveying belt rubber cover,
Component including following parts by weight: 625070~80 parts of nitrile rubber, neoprene M4020~30 part, nitrile silicone rubber 10~
20 parts, 3~8 parts of nano zine oxide, 1~3 part of stearic acid, 0.8~2 part of accelerator NS, 0.8~2 part of Vulcanization accelerator TMTD, the horizontal powder of sulphur
1~2 part, 0.5~1 part of anti-aging agent RD, antioxidant MC4450.5~2 part, 15~30 parts of o-phthalic acid dibutyl ester, carbon black
N33045~55 part, 5~8 parts of fire-retardant complexing agent, 25~35 parts of barium sulfate, 5~10 parts of calcium oxide, 5~12 parts of activated magnesia.
Further, the fire-retardant complexing agent is antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide
Mixture, wherein the mass ratio of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide be 2:1:1:1.
It further, further include 2~6 parts of molybdenum disulfide in the component of the oil resistant unitary-core flame-resistant conveying belt rubber cover.
It further, further include 5~10 parts of basalt in its component of the oil resistant unitary-core flame-resistant conveying belt rubber cover
Fiber.
Further, in its component of the oil resistant unitary-core flame-resistant conveying belt rubber cover further include 2~5 parts compound anti-tear
Split reinforcing agent.
Further, the compound tear-proof reinforcing agent be nanometer calcium carbonate, nanoclay, zinc stearate, Acrawax and
The mixture of plastic of poly vinyl acetate, wherein nanometer calcium carbonate, nanoclay, zinc stearate, Acrawax and polyvinyl acetate
The mass ratio of vinyl acetate is 1:1:1:1:2.
Further, the average grain diameter of the molybdenum disulfide is 0.1 μm to 3.0 μm.
The present invention also provides the preparation methods of the oil resistant unitary-core flame-resistant conveying belt rubber cover, comprising the following steps:
Step 1): premix processing；
70~80 parts of 6250,20~30 parts of nitrile rubber of neoprene M40 and 10~20 is weighed by proportion by weight
The nitrile silicone rubber of part is stand-by, using open mill that three kinds of sizing materials difference are thin logical in blocks；Three kinds of sizing materials it is thin it is logical in flakes after, put into mill
Machine mixing, beats triangle bag 8~10 times, and cooling is spare after parking at least 2 hours after slice；
Step 2): one section of mixing；
Composite rubber material made from step 1) is added in mixer, pressure floating weight is stirred, the rotor speed of mixer
Control is at 24 revs/min；After stirring 20 seconds, top bolt is opened, calcium oxide, 5~12 weights of 5~10 parts by weight are put into mixer
Measure the activated magnesia of part, the stearic acid of 1~3 parts by weight, the fire-retardant complexing agent of 5~8 parts by weight, 0.5~2 parts by weight antioxygen
The accelerator NS of agent MC445, the anti-aging agent RD of 0.5~1 parts by weight and 0.8~2 parts by weight, pressure floating weight continue to stir；Stirring
After 50 seconds, top bolt is opened, the carbon black N330 of 45~55 parts by weight, the phthalic acid of 15~30 parts by weight are put into mixer
The barium sulfate of dibutyl ester and 25~35 parts by weight, pressure floating weight continue to stir, and after stirring 60 seconds, open top bolt, take out mixer
In one section of rubber compound, be cooled to room temperature；
Step 3): two-stage mixing；
The one section of rubber compound that will be cooled to room temperature is placed in mixer, then puts into the horizontal powder of sulphur and 0.8~2 of 1~2 parts by weight
The Vulcanization accelerator TMTD of parts by weight, pressure floating weight stirring, the rotor speed control of mixer is at 18~20 revs/min；Stirring 20~
After 25 seconds, lower top bolt is opened, the two-stage mixing glue in mixer is discharged；
Step 4): mill；
By two-stage mixing glue made from step 3) be placed in open mill, be added 3~8 parts by weight nano zine oxide, turn over packet 6~
Slice is carried out by 8~10mm of thickness after 8 times, is cooled to room temperature after slice to get to oil resistant integral core conveying belt rubber cover.
Conveyer belt coating rubber of the invention is by being added sizing material for nitrile rubber 6250, neoprene M40 and nitrile silicone rubber
In, three kinds of rubber material collective effects enhance the oil resistivity of rubber cover of the invention, make its can oiled environment, it is subzero 40~
It is used for a long time under conditions of 170 DEG C, realizes and continue oil resistant, but also be able to maintain good mechanical property.By covering
Fire-retardant complexing agent is added in the component of glue, is that rubber cover has excellent flame retardant property.In addition, using few in the component of rubber cover
Carbon black is measured as filling system and improves wearability while keeping sizing material items physical mechanical property.
Molybdenum disulfide can also be added in the component of conveyer belt coating rubber of the invention, can reduce the feelings of static focus
Condition reduces the sheet resistance of conveyer belt, and the service performance of conveying electronic product is effectively ensured.
It can also be added in the component of conveyer belt coating rubber of the invention using basalt fibre, basalt fibre can have
It reduces sizing material heat, reduce its hysteresis loss in effect ground；Using basalt fibre and carbon black and it is used as filling system, is able to maintain
While sizing material items physical mechanical property, wearability is improved；And crackle energy can be absorbed in the addition of basalt fibre,
Delay the tearing of primer to extend, improves its tear resistance.
Compound tear-proof reinforcing agent can also be added in the component of conveyer belt coating rubber of the invention, wherein compound tear-proof
Reinforcing agent be nanometer calcium carbonate, nanoclay, zinc stearate, Acrawax and plastic of poly vinyl acetate mixture, wherein gathering
Ethylene vinyl acetate in normal temperature high voltage high shear strain with the characteristic for being transformed into liquid phase by solid phase, with Acker
After wax, zinc stearate, nanometer calcium carbonate and nanoclay mixing, in compacting production process, plastic of poly vinyl acetate transformation
At having mobility after liquid, increase so as to carry zinc stearate, nanometer calcium carbonate and nanoclay and formed on particle
Strong agent film, so as to improve face glue surface smoothness, reducing friction resistance.
Compared with prior art, the invention has the advantages that:
Conveyer belt coating rubber of the invention can be used for needing the fabric core conveyor belt of oil resistance, has higher oil resistant and invades
Property performance, performance reaches D0 class criteria in " HG/T3714 oil resistant conveyer ", can significantly extend conveyer belt transport
Oiliness material transports the service life under material.Conveyer belt coating rubber of the invention also has excellent anti-flammability and wear-resisting simultaneously
Property.
Specific embodiment
Oil resistant unitary-core flame-resistant conveying belt rubber cover of the invention and preparation method are made into one combined with specific embodiments below
Step is described in detail.
Embodiment 1
A kind of oil resistant unitary-core flame-resistant conveying belt rubber cover, the component including following parts by weight: 625075 parts of nitrile rubber,
M4025 parts of neoprene, 15 parts of nitrile silicone rubber, 5 parts of nano zine oxide, 2 parts of stearic acid, 1 part of accelerator NS, promotor
TMTD1.5 parts, 1.5 parts of the horizontal powder of sulphur, 0.8 part of anti-aging agent RD, MC4451.2 parts of antioxidant, 20 parts of o-phthalic acid dibutyl ester, charcoal
6 parts of N33050 parts black, fire-retardant complexing agent, 30 parts of barium sulfate, 8 parts of calcium oxide, 10 parts of activated magnesia.
The fire-retardant complexing agent is the mixture of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide,
Wherein the mass ratio of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide is 2:1:1:1.
The preparation method of above-mentioned oil resistant unitary-core flame-resistant conveying belt rubber cover, comprising the following steps:
Step 1): premix processing；
75 parts of 6250,25 parts of nitrile rubber of neoprene M40 and 15 parts of nitrile silicone rubber is weighed by proportion by weight
For use, using open mill that three kinds of sizing material difference are thin logical in blocks；Three kinds of sizing materials it is thin it is logical in flakes after, investment open mill mixing makes a call to three
Angle is wrapped 8 times, and cooling is spare after parking 2 hours after slice；
Step 2): one section of mixing；
Composite rubber material made from step 1) is added in mixer, pressure floating weight is stirred, the rotor speed of mixer
Control is at 24 revs/min；After stirring 20 seconds, top bolt is opened, the calcium oxide of 8 parts by weight, 10 parts by weight are put into mixer
Activated magnesia, the stearic acid of 2 parts by weight, the fire-retardant complexing agent of 6 parts by weight, the antioxidant MC445 of 1.2 parts by weight, 0.8 weight
The anti-aging agent RD of part and the accelerator NS of 1 parts by weight, pressure floating weight continue to stir；After stirring 50 seconds, top bolt is opened, in mixer
Carbon black N330, the o-phthalic acid dibutyl ester of 20 parts by weight and the barium sulfate of 30 parts by weight of 50 parts by weight of middle investment, are pushed up in pressure
Bolt continues to stir, and after stirring 60 seconds, opens top bolt, takes out one section of rubber compound in mixer, be cooled to room temperature；
Step 3): two-stage mixing；
The one section of rubber compound that will be cooled to room temperature is placed in mixer, then puts into the horizontal powder of sulphur and 1.5 weight of 1.5 parts by weight
The Vulcanization accelerator TMTD of part, pressure floating weight stirring, the rotor speed control of mixer is at 18 revs/min；After stirring 25 seconds, under opening
Bolt is pushed up, the two-stage mixing glue in mixer is discharged；
Step 4): mill；
Two-stage mixing glue made from step 3) is placed in open mill, the nano zine oxide of 5 parts by weight is added, after turning over packet 6 times
Slice is carried out by thickness 10mm, is cooled to room temperature after slice to get to oil resistant integral core conveying belt rubber cover.
Embodiment 2
A kind of oil resistant unitary-core flame-resistant conveying belt rubber cover, the component including following parts by weight: 625070 parts of nitrile rubber,
M4030 parts of neoprene, 10 parts of nitrile silicone rubber, 8 parts of nano zine oxide, 1 part of stearic acid, 2 parts of accelerator NS, promotor
TMTD0.8 parts, 2 parts of the horizontal powder of sulphur, 0.5 part of anti-aging agent RD, MC4452 parts of antioxidant, 15 parts of o-phthalic acid dibutyl ester, carbon black
N33055 parts, 5 parts of fire-retardant complexing agent, 35 parts of barium sulfate, 5 parts of calcium oxide, 12 parts of activated magnesia.
The fire-retardant complexing agent is the mixture of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide,
Wherein the mass ratio of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide is 2:1:1:1.
The preparation method of above-mentioned oil resistant unitary-core flame-resistant conveying belt rubber cover, comprising the following steps:
Step 1): premix processing；
70 parts of 6250,30 parts of nitrile rubber of neoprene M40 and 10 parts of nitrile silicone rubber is weighed by proportion by weight
For use, using open mill that three kinds of sizing material difference are thin logical in blocks；Three kinds of sizing materials it is thin it is logical in flakes after, investment open mill mixing makes a call to three
Angle is wrapped 10 times, and cooling is spare after parking 2.5 hours after slice；
Step 2): one section of mixing；
Composite rubber material made from step 1) is added in mixer, pressure floating weight is stirred, the rotor speed of mixer
Control is at 24 revs/min；After stirring 20 seconds, top bolt is opened, the calcium oxide of 5 parts by weight, 12 parts by weight are put into mixer
Activated magnesia, the stearic acid of 1 parts by weight, the fire-retardant complexing agent of 5 parts by weight, the antioxidant MC445 of 2 parts by weight, 0.5 parts by weight
Anti-aging agent RD and 2 parts by weight accelerator NS, pressure floating weight continue to stir；After stirring 50 seconds, top bolt is opened, in mixer
The barium sulfate of the carbon black N330 of 55 parts by weight, the o-phthalic acid dibutyl ester of 15 parts by weight and 35 parts by weight are put into, floating weight is pressed
Continue to stir, after stirring 60 seconds, opens top bolt, take out one section of rubber compound in mixer, be cooled to room temperature；
Step 3): two-stage mixing；
The one section of rubber compound that will be cooled to room temperature is placed in mixer, then puts into the horizontal powder of sulphur and 0.8 parts by weight of 2 parts by weight
Vulcanization accelerator TMTD, pressure floating weight stirring, the rotor speed control of mixer is at 20 revs/min；After stirring 20 seconds, lower top is opened
The two-stage mixing glue in mixer is discharged in bolt；
Step 4): mill；
Two-stage mixing glue made from step 3) is placed in open mill, the nano zine oxide of 8 parts by weight is added, after turning over packet 8 times
Slice is carried out by thickness 8mm, is cooled to room temperature after slice to get to oil resistant integral core conveying belt rubber cover.
Embodiment 3
A kind of oil resistant unitary-core flame-resistant conveying belt rubber cover, the component including following parts by weight: 625080 parts of nitrile rubber,
M4020 parts of neoprene, 20 parts of nitrile silicone rubber, 3 parts of nano zine oxide, 3 parts of stearic acid, 0.8 part of accelerator NS, promotor
TMTD2 parts, 1 part of the horizontal powder of sulphur, 1 part of anti-aging agent RD, MC4450.5 parts of antioxidant, 30 parts of o-phthalic acid dibutyl ester, carbon black
N33045 parts, 8 parts of fire-retardant complexing agent, 25 parts of barium sulfate, 10 parts of calcium oxide, 5 parts of activated magnesia.
The fire-retardant complexing agent is the mixture of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide,
Wherein the mass ratio of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide is 2:1:1:1.
The preparation method of above-mentioned oil resistant unitary-core flame-resistant conveying belt rubber cover, comprising the following steps:
Step 1): premix processing；
80 parts of 6250,20 parts of nitrile rubber of neoprene M40 and 20 parts of nitrile silicone rubber is weighed by proportion by weight
For use, using open mill that three kinds of sizing material difference are thin logical in blocks；Three kinds of sizing materials it is thin it is logical in flakes after, investment open mill mixing makes a call to three
Angle is wrapped 10 times, and cooling is spare after parking 3 hours after slice；
Step 2): one section of mixing；
Composite rubber material made from step 1) is added in mixer, pressure floating weight is stirred, the rotor speed of mixer
Control is at 24 revs/min；After stirring 20 seconds, top bolt is opened, the calcium oxide of 10 parts by weight, 5 parts by weight are put into mixer
Activated magnesia, the stearic acid of 3 parts by weight, the fire-retardant complexing agent of 8 parts by weight, the antioxidant MC445 of 0.5 parts by weight, 1 parts by weight
Anti-aging agent RD and 0.8 parts by weight accelerator NS, pressure floating weight continue to stir；After stirring 50 seconds, top bolt is opened, in mixer
Carbon black N330, the o-phthalic acid dibutyl ester of 30 parts by weight and the barium sulfate of 25 parts by weight of 45 parts by weight of middle investment, are pushed up in pressure
Bolt continues to stir, and after stirring 60 seconds, opens top bolt, takes out one section of rubber compound in mixer, be cooled to room temperature；
Step 3): two-stage mixing；
The one section of rubber compound that will be cooled to room temperature is placed in mixer, then puts into the horizontal powder of sulphur and 2 parts by weight of 1 parts by weight
Vulcanization accelerator TMTD, pressure floating weight stirring, the rotor speed control of mixer is at 18 revs/min；After stirring 25 seconds, lower top is opened
The two-stage mixing glue in mixer is discharged in bolt；
Step 4): mill；
Two-stage mixing glue made from step 3) is placed in open mill, the nano zine oxide of 3 parts by weight is added, after turning over packet 8 times
Slice is carried out by thickness 8mm, is cooled to room temperature after slice to get to oil resistant integral core conveying belt rubber cover.
Embodiment 4
A kind of oil resistant unitary-core flame-resistant conveying belt rubber cover, the component including following parts by weight: 625075 parts of nitrile rubber,
M4025 parts of neoprene, 15 parts of nitrile silicone rubber, 5 parts of nano zine oxide, 2 parts of stearic acid, 1 part of accelerator NS, promotor
TMTD1.5 parts, 1.5 parts of the horizontal powder of sulphur, 0.8 part of anti-aging agent RD, MC4451.2 parts of antioxidant, 20 parts of o-phthalic acid dibutyl ester, charcoal
6 parts of N33050 parts black, fire-retardant complexing agent, 30 parts of barium sulfate, 8 parts of calcium oxide, 10 parts of activated magnesia, 4 parts of molybdenum disulfide.
The fire-retardant complexing agent is the mixture of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide,
Wherein the mass ratio of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide is 2:1:1:1.
The preparation method of above-mentioned oil resistant unitary-core flame-resistant conveying belt rubber cover, comprising the following steps:
Step 1): premix processing；
75 parts of 6250,25 parts of nitrile rubber of neoprene M40 and 15 parts of nitrile silicone rubber is weighed by proportion by weight
For use, using open mill that three kinds of sizing material difference are thin logical in blocks；Three kinds of sizing materials it is thin it is logical in flakes after, investment open mill mixing makes a call to three
Angle is wrapped 8 times, and cooling is spare after parking 2 hours after slice；
Step 2): one section of mixing；
Composite rubber material made from step 1) is added in mixer, pressure floating weight is stirred, the rotor speed of mixer
Control is at 24 revs/min；After stirring 20 seconds, top bolt is opened, the calcium oxide of 8 parts by weight, 10 parts by weight are put into mixer
Activated magnesia, the stearic acid of 2 parts by weight, the molybdenum disulfide of 4 parts by weight, the fire-retardant complexing agents of 6 parts by weight, 1.2 parts by weight
The accelerator NS of antioxidant MC445, the anti-aging agent RD of 0.8 parts by weight and 1 parts by weight, pressure floating weight continue to stir；Stirring 50 seconds
Afterwards, top bolt is opened, the carbon black N330 of 50 parts by weight, the o-phthalic acid dibutyl ester of 20 parts by weight and 30 weights are put into mixer
The barium sulfate of part is measured, pressure floating weight continues to stir, and after stirring 60 seconds, opens top bolt, takes out one section of rubber compound in mixer, cold
But to room temperature；
Step 3): two-stage mixing；
The one section of rubber compound that will be cooled to room temperature is placed in mixer, then puts into the horizontal powder of sulphur and 1.5 weight of 1.5 parts by weight
The Vulcanization accelerator TMTD of part, pressure floating weight stirring, the rotor speed control of mixer is at 18 revs/min；After stirring 25 seconds, under opening
Bolt is pushed up, the two-stage mixing glue in mixer is discharged；
Step 4): mill；
Two-stage mixing glue made from step 3) is placed in open mill, the nano zine oxide of 5 parts by weight is added, after turning over packet 6 times
Slice is carried out by thickness 10mm, is cooled to room temperature after slice to get to oil resistant integral core conveying belt rubber cover.
Embodiment 5
A kind of oil resistant unitary-core flame-resistant conveying belt rubber cover, the component including following parts by weight: 625075 parts of nitrile rubber,
M4025 parts of neoprene, 15 parts of nitrile silicone rubber, 5 parts of nano zine oxide, 2 parts of stearic acid, 1 part of accelerator NS, promotor
TMTD1.5 parts, 1.5 parts of the horizontal powder of sulphur, 0.8 part of anti-aging agent RD, MC4451.2 parts of antioxidant, 20 parts of o-phthalic acid dibutyl ester, charcoal
6 parts of N33050 parts black, fire-retardant complexing agent, 30 parts of barium sulfate, 8 parts of calcium oxide, 10 parts of activated magnesia, 8 parts of basalt fibre.
The fire-retardant complexing agent is the mixture of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide,
Wherein the mass ratio of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide is 2:1:1:1.
The preparation method of above-mentioned oil resistant unitary-core flame-resistant conveying belt rubber cover, comprising the following steps:
Step 1): premix processing；
75 parts of 6250,25 parts of nitrile rubber of neoprene M40 and 15 parts of nitrile silicone rubber is weighed by proportion by weight
For use, using open mill that three kinds of sizing material difference are thin logical in blocks；Three kinds of sizing materials it is thin it is logical in flakes after, investment open mill mixing makes a call to three
Angle is wrapped 8 times, and cooling is spare after parking 2 hours after slice；
Step 2): one section of mixing；
Composite rubber material made from step 1) is added in mixer, pressure floating weight is stirred, the rotor speed of mixer
Control is at 24 revs/min；After stirring 20 seconds, top bolt is opened, the calcium oxide of 8 parts by weight, 10 parts by weight are put into mixer
Activated magnesia, the stearic acid of 2 parts by weight, the basalt fibre of 8 parts by weight, the fire-retardant complexing agent of 6 parts by weight, 1.2 parts by weight
Antioxidant MC445, the anti-aging agent RD of 0.8 parts by weight and the accelerator NS of 1 parts by weight, pressure floating weight continue to stir；Stirring 50
After second, top bolt is opened, the carbon black N330 of 50 parts by weight, the o-phthalic acid dibutyl ester and 30 of 20 parts by weight are put into mixer
The barium sulfate of parts by weight, pressure floating weight continue to stir, and after stirring 60 seconds, open top bolt, take out one section of rubber compound in mixer,
It is cooled to room temperature；
Step 3): two-stage mixing；
The one section of rubber compound that will be cooled to room temperature is placed in mixer, then puts into the horizontal powder of sulphur and 1.5 weight of 1.5 parts by weight
The Vulcanization accelerator TMTD of part, pressure floating weight stirring, the rotor speed control of mixer is at 18 revs/min；After stirring 25 seconds, under opening
Bolt is pushed up, the two-stage mixing glue in mixer is discharged；
Step 4): mill；
Two-stage mixing glue made from step 3) is placed in open mill, the nano zine oxide of 5 parts by weight is added, after turning over packet 6 times
Slice is carried out by thickness 10mm, is cooled to room temperature after slice to get to oil resistant integral core conveying belt rubber cover.
Embodiment 6
A kind of oil resistant unitary-core flame-resistant conveying belt rubber cover, the component including following parts by weight: 625075 parts of nitrile rubber,
M4025 parts of neoprene, 15 parts of nitrile silicone rubber, 5 parts of nano zine oxide, 2 parts of stearic acid, 1 part of accelerator NS, promotor
TMTD1.5 parts, 1.5 parts of the horizontal powder of sulphur, 0.8 part of anti-aging agent RD, MC4451.2 parts of antioxidant, 20 parts of o-phthalic acid dibutyl ester, charcoal
6 parts of N33050 parts black, fire-retardant complexing agent, 30 parts of barium sulfate, 8 parts of calcium oxide, 10 parts of activated magnesia, 3 parts of compound tear-proof
Reinforcing agent.
The fire-retardant complexing agent is the mixture of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide,
Wherein the mass ratio of antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide is 2:1:1:1.
The compound tear-proof reinforcing agent is nanometer calcium carbonate, nanoclay, zinc stearate, Acrawax and polyvinyl acetate
The mixture of vinyl acetate, the wherein matter of nanometer calcium carbonate, nanoclay, zinc stearate, Acrawax and plastic of poly vinyl acetate
Amount is than being 1:1:1:1:2.
The preparation method of above-mentioned oil resistant unitary-core flame-resistant conveying belt rubber cover, comprising the following steps:
Step 1): premix processing；
75 parts of 6250,25 parts of nitrile rubber of neoprene M40 and 15 parts of nitrile silicone rubber is weighed by proportion by weight
For use, using open mill that three kinds of sizing material difference are thin logical in blocks；Three kinds of sizing materials it is thin it is logical in flakes after, investment open mill mixing makes a call to three
Angle is wrapped 8 times, and cooling is spare after parking 2 hours after slice；
Step 2): one section of mixing；
Composite rubber material made from step 1) is added in mixer, pressure floating weight is stirred, the rotor speed of mixer
Control is at 24 revs/min；After stirring 20 seconds, top bolt is opened, the calcium oxide of 8 parts by weight, 10 parts by weight are put into mixer
Activated magnesia, the stearic acid of 2 parts by weight, the fire-retardant complexing agent of 6 parts by weight, the compound tear-proof reinforcing agent of 3 parts by weight, 1.2
The accelerator NS of the antioxidant MC445 of parts by weight, the anti-aging agent RD of 0.8 parts by weight and 1 parts by weight, pressure floating weight continue to stir；
After stirring 50 seconds, top bolt is opened, the phthalic acid two of carbon black N330,20 parts by weight that 50 parts by weight are put into mixer are pungent
The barium sulfate of rouge and 30 parts by weight, pressure floating weight continue to stir, and after stirring 60 seconds, open top bolt, take out one section in mixer
Rubber compound is cooled to room temperature；
Step 3): two-stage mixing；
The one section of rubber compound that will be cooled to room temperature is placed in mixer, then puts into the horizontal powder of sulphur and 1.5 weight of 1.5 parts by weight
The Vulcanization accelerator TMTD of part, pressure floating weight stirring, the rotor speed control of mixer is at 18 revs/min；After stirring 25 seconds, under opening
Bolt is pushed up, the two-stage mixing glue in mixer is discharged；
Step 4): mill；
Two-stage mixing glue made from step 3) is placed in open mill, the nano zine oxide of 5 parts by weight is added, after turning over packet 6 times
Slice is carried out by thickness 10mm, is cooled to room temperature after slice to get to oil resistant integral core conveying belt rubber cover.
As a comparison case with duck conveyor belt rubber cover in the prior art, the whole core of oil resistant prepared in the above embodiments is hindered
Flame resistant conveying belt rubber cover and the conveyer belt coating rubber of comparative example carry out conventional mechanical property test and oil resistance test, conventional force
The performance test results are as shown in table 1 below, and test result is as follows for oil resistance shown in table 2.
Table 1
Table 2
As above-mentioned test result it is found that oil resistant unitary-core flame-resistant face glue made from preparation method through the invention relative to
The duck conveyor belt face glue of comparative example has superior mechanical property, and swelling is few in oil immersion experiment, substantially prolongs conveying
The service life of band.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of oil resistant unitary-core flame-resistant conveying belt rubber cover, which is characterized in that the component including following parts by weight: nitrile rubber
6250 70~80 parts, 20~30 parts of neoprene M40,10~20 parts of nitrile silicone rubber, 3~8 parts of nano zine oxide, stearic acid 1
~3 parts, it is 0.8~2 part of accelerator NS, 0.8~2 part of Vulcanization accelerator TMTD, 1~2 part of the horizontal powder of sulphur, 0.5~1 part of anti-aging agent RD, anti-
0.5~2 part of oxygen agent MC445,15~30 parts of o-phthalic acid dibutyl ester, 45~55 parts of carbon black N330, fire-retardant complexing agent 5~8
Part, 25~35 parts of barium sulfate, 5~10 parts of calcium oxide, 5~12 parts of activated magnesia.
2. oil resistant unitary-core flame-resistant conveying belt rubber cover according to claim 1, which is characterized in that the fire-retardant complexing agent is
Antimony oxide, trichloroethyl phosphate, magnesium hydroxide and aluminium hydroxide mixture, wherein antimony oxide, trichloroethyl
The mass ratio of phosphate, magnesium hydroxide and aluminium hydroxide is 2:1:1:1.
3. oil resistant unitary-core flame-resistant conveying belt rubber cover according to claim 1, which is characterized in that further include 2 in its component
~6 parts of molybdenum disulfide.
4. oil resistant unitary-core flame-resistant conveying belt rubber cover according to claim 1, which is characterized in that further include 5 in its component
~10 parts of basalt fibre.
5. oil resistant unitary-core flame-resistant conveying belt rubber cover according to claim 1, which is characterized in that further include 2 in its component
~5 parts of compound tear-proof reinforcing agent.
6. oil resistant unitary-core flame-resistant conveying belt rubber cover according to claim 3, which is characterized in that the compound tear-proof increases
Strong agent be nanometer calcium carbonate, nanoclay, zinc stearate, Acrawax and plastic of poly vinyl acetate mixture, wherein nanometer
Calcium carbonate, nanoclay, zinc stearate, Acrawax and plastic of poly vinyl acetate mass ratio be 1:1:1:1:2.
7. oil resistant unitary-core flame-resistant conveying belt rubber cover according to claim 3, which is characterized in that the molybdenum disulfide is put down
Equal partial size is 0.1 μm to 3.0 μm.
8. a kind of preparation method of oil resistant unitary-core flame-resistant conveying belt rubber cover described in claim 1, which is characterized in that including with
Lower step:
Step 1): premix processing；
By proportion by weight weigh 70~80 parts 6250,20~30 parts of nitrile rubber of neoprene M40 and 10~20 parts
Nitrile silicone rubber is stand-by, using open mill that three kinds of sizing material difference are thin logical in blocks；Three kinds of sizing materials it is thin it is logical in flakes after, investment open mill is mixed
It closes, beats triangle bag 8~10 times, cooling is spare after parking at least 2 hours after slice；
Step 2): one section of mixing；
Composite rubber material made from step 1) is added in mixer, pressure floating weight is stirred, the rotor speed control of mixer
At 24 revs/min；After stirring 20 seconds, top bolt is opened, calcium oxide, 5~12 parts by weight of 5~10 parts by weight are put into mixer
Activated magnesia, the stearic acid of 1~3 parts by weight, the fire-retardant complexing agent of 5~8 parts by weight, 0.5~2 parts by weight antioxidant
The accelerator NS of MC445, the anti-aging agent RD of 0.5~1 parts by weight and 0.8~2 parts by weight, pressure floating weight continue to stir；Stirring 50
After second, top bolt is opened, the carbon black N330 of 45~55 parts by weight, the phthalic acid two of 15~30 parts by weight are put into mixer
The barium sulfate of pungent rouge and 25~35 parts by weight, pressure floating weight continue to stir, and after stirring 60 seconds, open top bolt, take out in mixer
One section of rubber compound, be cooled to room temperature；
Step 3): two-stage mixing；
The one section of rubber compound that will be cooled to room temperature is placed in mixer, then puts into the horizontal powder of sulphur and 0.8~2 weight of 1~2 parts by weight
The Vulcanization accelerator TMTD of part, pressure floating weight stirring, the rotor speed control of mixer is at 18~20 revs/min；Stirring 20~25 seconds
Afterwards, lower top bolt is opened, the two-stage mixing glue in mixer is discharged；
Step 4): mill；
Two-stage mixing glue made from step 3) is placed in open mill, the nano zine oxide of 3~8 parts by weight is added, turns over packet 6~8 times
Slice is carried out by 8~10mm of thickness afterwards, is cooled to room temperature after slice to get to oil resistant integral core conveying belt rubber cover.
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| CN112920479A (en) * | 2020-12-24 | 2021-06-08 | 无锡宝通科技股份有限公司 | Fabric core laminated flame-retardant conveyer belt rubberizing for coal mine and preparation method thereof |
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| CN110862587A (en) * | 2019-11-28 | 2020-03-06 | 郭文海 | Oil-resistant whole-core flame-retardant conveying belt |
| CN112920479A (en) * | 2020-12-24 | 2021-06-08 | 无锡宝通科技股份有限公司 | Fabric core laminated flame-retardant conveyer belt rubberizing for coal mine and preparation method thereof |
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Application publication date: 20181211 |