CN108841057A - Steel core conveyor belt and preparation method thereof - Google Patents
Steel core conveyor belt and preparation method thereof Download PDFInfo
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- CN108841057A CN108841057A CN201810487751.9A CN201810487751A CN108841057A CN 108841057 A CN108841057 A CN 108841057A CN 201810487751 A CN201810487751 A CN 201810487751A CN 108841057 A CN108841057 A CN 108841057A
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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
- C08L9/06—Copolymers with styrene
-
- 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
- B65G15/38—Belts or like endless load-carriers made of rubber or plastics with flame-resistant layers, e.g. of asbestos, glass
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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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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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
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention provides a kind of steel core conveyor belts, including rubber cover described in core rubber described in wirerope, above-mentioned technical proposal and above-mentioned technical proposal.The technological problems such as the present invention selects to be made of the main gel as rubber cover natural gum, butadiene-styrene rubber, cis-butadiene cement, and solution uses the easy roll banding of neoprene, incipient scorch, resting period short.Core rubber of the present invention and rubber cover substantially reduce harmful and raw cigarette material such as halogen, antimony, and burning after-fume amount is low, while making high rubber cover intensity, core rubber adhesive strength height, content of halogen low by specific core rubber and covering adhesive formulation.
Description
Technical field
The present invention relates to rubber conveyer belt technical fields, more particularly, to a kind of steel core conveyor belt and its preparation
Method.
Background technique
Steel core conveyor belt is underground coal mine main conveyance, executes MT668-2008《Colliery wire rope
Core fire retarding conveying band》Standard.In order to meet standard requirements, in conveyer belt manufacturing process, general subject's sizing material uses anti-flammability
Preferable neoprene adds various compounding agents and sizing material is made.One side neoprene price is higher, and craftsmanship is poor, in refining glue
It is easy roll banding, easy incipient scorch in the process, the resting period is short.Another aspect neoprene contains a large amount of halogens, in adhesive tape combustion process
It is middle to generate a large amount of toxic and harmful gas and smog, personal injury is caused, low-smoke low-halogen, the low smoke and zero halogen ring advocated with present country
Factoring thought is disagreed.
Therefore it provides a kind of steel core conveyor belt of high-strength low halogen height bonding.On the one hand conveyer belt formula is reduced
In content of halogen, reduce in production and use process to the injury of human body；On the other hand it improves rubber cover intensity, improve core
Glue bond extraction, instead of price, high, craftsmanship difference neoprene glue formula is very important.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is that provide a kind of steel core conveyor belt, the present invention
The steel core conveyor belt rubber cover intensity of offer is high, core rubber adhesive strength is high.
The present invention provides a kind of rubber covers, including：
0~20 parts by weight of natural rubber, 60~80 parts by weight of butadiene-styrene rubber, 20~30 parts by weight of butadiene rubber, zinc oxide 3
~6 parts by weight, 0~2 parts by weight of stearic acid, 1~2 parts by weight of promotor, 2~4 parts by weight of anti-aging agent, 1~2 parts by weight of paraffin,
1.5~3 parts by weight of sulphur, 1~3 parts by weight of antimony oxide, 3~6 parts by weight of chlorinated paraffin, 50~90 weight of solid flame retardant
Part, 10~15 parts by weight of flame-resistant lubricant, 35~45 parts by weight of carbon black.
Preferably, including：1~18 parts by weight of natural rubber, 65~75 parts by weight of butadiene-styrene rubber, 22~28 weight of butadiene rubber
Amount part, 4~5 parts by weight of zinc oxide, 0.1~2 parts by weight of stearic acid, 1~2 parts by weight of promotor, 2~3.5 parts by weight of anti-aging agent,
1~2 parts by weight of paraffin, 1.5~2.5 parts by weight of sulphur, 1~2 parts by weight of antimony oxide, 3~5 parts by weight of chlorinated paraffin, Gu
50~85 parts by weight of body fire retardant, 10~14 parts by weight of flame-resistant lubricant, 35~43 parts by weight of carbon black.
Preferably, the promotor is selected from 2- benzothiazolyl mercaptan, dibenzothiazyl disulfide, N- ring ethyl -2- benzene
And two kinds in thiazolesulfenamide, N- oxidation diethylidene -2-[4-morpholinodithio sulfenamide and tetramethylthiuram disulfide
Or it is two or more；
The anti-aging agent is selected from 2,2,4- trimethyl -1,2- dihyaroquinoline, N- isopropyl-N '-diphenyl-para-phenylene diamine, 9,
Two or more in 9- dimethyl acridinium.
Preferably, the solid flame retardant be selected from superfine alumina silicate, silicon-series five-retardant, ammonium polyphosphate, ultrafine aluminium hydroxide,
Two or more in expansion type flame retardant and zinc borate；The flame-resistant lubricant is MB-202.
The present invention provides a kind of core rubbers, including：
10~30 parts by weight of natural rubber, 70~90 parts by weight of butadiene-styrene rubber, 5~8 parts by weight of zinc oxide, light magnesium oxide
1~3 parts by weight, 0~2 parts by weight of stearic acid, 1~2 parts by weight of promotor, 2~4 parts by weight of anti-aging agent, 1.5~3 weight of sulphur
Part, 2~3 parts by weight of cobalt salt, 3~6 parts by weight of adhesive, 7~12 parts by weight of white carbon black, 1~3 parts by weight of antimony oxide, chlorine
3~6 parts by weight of fossil waxes, 50~90 parts by weight of solid flame retardant, 35~45 parts by weight of carbon black.
Preferably, the promotor is selected from 2- benzothiazolyl mercaptan, dibenzothiazyl disulfide, N- ring ethyl -2- benzene
And two kinds in thiazolesulfenamide, N- oxidation diethylidene -2-[4-morpholinodithio sulfenamide and tetramethylthiuram disulfide
Or it is two or more；
The anti-aging agent is selected from 2,2,4- trimethyl -1,2- dihyaroquinoline, N- isopropyl-N '-diphenyl-para-phenylene diamine, 9,
Two or more in 9- dimethyl acridinium；
Described adhesive is selected from hexa methoxy methyl melamine, the precondensate of resorcinol and formaldehyde, maleic anhydride complexing
Two or more in butadiene and modified cyanurotriamide compound.
Preferably, the solid flame retardant is that the solid flame retardant is selected from superfine alumina silicate, silicon-series five-retardant, polyphosphoric acid
Two or more in ammonium, ultrafine aluminium hydroxide, expansion type flame retardant and zinc borate；The white carbon black is BET specific surface
Product >=200m2/g。
The present invention provides a kind of steel core conveyor belts, including core rubber described in wirerope, above-mentioned technical proposal
With rubber cover described in above-mentioned technical proposal.
The present invention provides a kind of preparation methods of steel core conveyor belt, including：
A butadiene-styrene rubber, natural rubber, cis-butadiene cement) are mixed into preheating 40s~60s；Be added zinc oxide, stearic acid, promotor,
Anti-aging agent, paraffin, sulphur, antimony oxide, chlorinated paraffin, solid flame retardant, flame-resistant lubricant mixing 50s~80s, then plus
Enter carbon black, 130~140 DEG C of dumpings；Obtain one section of mixing rubber cover；One section of rubber compound is preheated, is mixed with vulcanizing agent, obtains two
Section is kneaded rubber cover；
Butadiene-styrene rubber, natural rubber are mixed into preheating 40s~60s；Zinc oxide, light magnesium oxide, stearic acid, promotion is added
Agent, anti-aging agent, sulphur, cobalt salt, adhesive, white carbon black, antimony oxide, chlorinated paraffin mixing 50s~80s, are eventually adding charcoal
It is black, 130~140 DEG C of dumpings；Obtain one section of mixing core rubber；One section of rubber compound is preheated, mixes, obtains with vulcanizing agent and adhesive
Two-stage mixing core rubber；
B two-stage mixing rubber cover, the calendering of two-stage mixing core rubber, cold pressing, vulcanization) are obtained into steel core conveyor belt.
Preferably, the two-stage mixing covering rubber calendering parameter is specially：75 DEG C~85 DEG C of upper roller temperature, 65 DEG C of middle roller temperature~
75 DEG C, 40 DEG C~50 DEG C of lower roller temperature；The two-stage mixing core rubber rolls parameter：75 DEG C~85 DEG C of upper roller temperature, middle roller temperature
80 DEG C~90 DEG C, 50 DEG C~60 DEG C of lower roller temperature；The curing temperature is 145 DEG C~150 DEG C.
Compared with prior art, the present invention provides a kind of steel core conveyor belts, including wirerope, above-mentioned technology
Rubber cover described in core rubber described in scheme and above-mentioned technical proposal.Present invention selection is made of natural gum, butadiene-styrene rubber, cis-butadiene cement
As the main gel of rubber cover, the technological problems such as solution uses the easy roll banding of neoprene, incipient scorch, resting period short.Core of the present invention
Glue and rubber cover substantially reduce harmful and raw cigarette material such as halogen, antimony, and burning after-fume amount is low, while by specific core rubber and covering
Lid glue formula makes high rubber cover intensity, core rubber adhesive strength height, content of halogen low.
Specific embodiment
The present invention provides a kind of steel core conveyor belt and preparation method thereof, those skilled in the art can be used for reference
Present disclosure is suitably modified realization of process parameters.In particular, it should be pointed out that all similar substitutions and modifications are to this field skill
It is for art personnel it will be apparent that they shall fall within the protection scope of the present invention.Method and application of the invention has passed through
Preferred embodiment is described, related personnel obviously can not depart from the content of present invention, in spirit and scope to the side of this paper
Method and application are modified or appropriate changes and combinations, carry out implementation and application the technology of the present invention.
The present invention provides a kind of rubber covers, including：
0~20 parts by weight of natural rubber, 60~80 parts by weight of butadiene-styrene rubber, 20~30 parts by weight of butadiene rubber, zinc oxide 3
~6 parts by weight, 0~2 parts by weight of stearic acid, 1~2 parts by weight of promotor, 2~4 parts by weight of anti-aging agent, 1~2 parts by weight of paraffin,
1.5~3 parts by weight of sulphur, 1~3 parts by weight of antimony oxide, 3~6 parts by weight of chlorinated paraffin, 50~90 weight of solid flame retardant
Part, 10~15 parts by weight of flame-resistant lubricant, 35~45 parts by weight of carbon black.
Rubber cover provided by the invention includes the natural rubber of 0~20 parts by weight；Preferably include the natural of 2~18 parts by weight
Rubber；It more preferably include the natural rubber of 5~17 parts by weight；It most preferably include the natural rubber of 10~16 parts by weight.The present invention
It is commercially available to its source without limiting.
The present invention for the natural rubber without limit, it is well known to those skilled in the art.Natural rubber is
One kind is (C with polyisoprene natural polymer as main component, molecular formula5H8) n, 91% in ingredient~
94% is rubber hydrocarbon (polyisoprene), remaining is the nonrubber materials such as protein, fatty acid, ash content, carbohydrate.
Rubber cover provided by the invention includes the butadiene-styrene rubber of 60~80 parts by weight；Preferably include the fourth of 60~75 parts by weight
Benzene rubber；It more preferably include the butadiene-styrene rubber of 60~70 parts by weight.The present invention to its source without limit, it is commercially available.
The present invention for the butadiene-styrene rubber without limit, it is well known to those skilled in the art.Butadiene-styrene rubber
(SBR), also known as polystyrenebutadienes copolymer.The service performance of its physical mechanism performance, processing performance and product close to
Natural rubber, some performances are for example wear-resisting, heat-resisting, ageing-resistant and curingprocess rate is more excellent compared with natural rubber, mainly for the manufacture of
Tire, conveyer belt, sebific duct, adhesive sponge rubber, dipping fiber and fabric, can also be directly used as adhesive, coating.The present invention
The preferred trade mark of butadiene-styrene rubber is 1502.
Rubber cover provided by the invention includes the butadiene rubber of 20~30 parts by weight；Preferably include the suitable of 22~30 parts by weight
Buna；It more preferably include the butadiene rubber of 25~30 parts by weight.
Butadiene rubber is the abbreviation of cis- Isosorbide-5-Nitrae-polybutadiene rubber, and molecular formula is (C4H6) n, belongs to mixture.This hair
It is bright for the butadiene rubber without limit, it is well known to those skilled in the art.The present invention is to its source without limit
It is fixed, it is commercially available.
Rubber cover provided by the invention includes the zinc oxide of 3~6 parts by weight；Preferably include the zinc oxide of 3~5 parts by weight；
It more preferably include the zinc oxide of 4~5 parts by weight.
The present invention for the zinc oxide without limit, it is well known to those skilled in the art.The present invention comes it
Source is commercially available without limiting.
Rubber cover provided by the invention includes the stearic acid of 0~2 parts by weight；Preferably include the tristearin of 0.5~1.5 parts by weight
Acid.
Rubber cover provided by the invention includes the promotor of 1~2 parts by weight；Preferably include the promotor of 1.5~2 amount parts.
Promotor of the present invention is preferably selected from 2- benzothiazolyl mercaptan, dibenzothiazyl disulfide, N- ring ethyl -2-
Two in benzothiazole sulfenamide, N- oxidation diethylidene -2-[4-morpholinodithio sulfenamide and tetramethylthiuram disulfide
Kind is two or more.
The present invention for the promotor without limit, it is well known to those skilled in the art.The present invention comes it
Source is commercially available without limiting.
Rubber cover provided by the invention includes the anti-aging agent of 2~4 parts by weight；Preferably include the anti-old of 2.5~3.5 parts by weight
Agent.
Anti-aging agent of the present invention is preferably selected from 2,2,4- trimethyl -1,2- dihyaroquinoline, N- isopropyl-N '-phenyl
Two or more in p-phenylenediamine, 9,9-dimethylacridan.The present invention is for the anti-aging agent without restriction, ability
Known to field technique personnel.The present invention to its source without limit, it is commercially available.
Rubber cover provided by the invention includes the paraffin of 1~2 parts by weight；Preferably include the paraffin of 1.5~2 parts by weight.
Rubber cover provided by the invention includes the sulphur of 1.5~3 parts by weight；Preferably include the sulphur of 1.8~2.8 parts by weight
Sulphur.
Rubber cover provided by the invention includes the antimony oxide of 1~3 parts by weight；Preferably include 1.5~2.5 parts by weight
Antimony oxide.
Rubber cover provided by the invention includes the chlorinated paraffin of 3~6 parts by weight；Preferably include the chlorination stone of 4~6 parts by weight
Wax；It more preferably include the chlorinated paraffin of 4.5~6 parts by weight.
Rubber cover provided by the invention includes the solid flame retardant of 50~90 parts by weight；Preferably include 55~85 parts by weight
Solid flame retardant；It more preferably include the solid flame retardant of 60~80 parts by weight.
Solid flame retardant of the present invention be selected from superfine alumina silicate, silicon-series five-retardant, ammonium polyphosphate, ultrafine aluminium hydroxide,
Two or more in expansion type flame retardant and zinc borate.
Rubber cover provided by the invention includes the flame-resistant lubricant of 10~15 parts by weight；Preferably include 10~14 parts by weight
Flame-resistant lubricant；It more preferably include the flame-resistant lubricant of 10~13 parts by weight.
Flame-resistant lubricant of the present invention is preferably MB-202.
Rubber cover provided by the invention includes the carbon black of 35~45 parts by weight；Preferably include the carbon black of 35~43 parts by weight；
It more preferably include the carbon black of 37~40 parts by weight.
The present invention is for the zinc oxide, stearic acid, promotor, anti-aging agent, paraffin, sulphur, antimony oxide, chlorination stone
Wax, solid flame retardant, flame-resistant lubricant and carbon black source without limiting, it is commercially available.
In a portion preferred embodiment of the present invention, the rubber cover includes 1~18 parts by weight of natural rubber, fourth
65~75 parts by weight of benzene rubber, 22~28 parts by weight of butadiene rubber, 4~5 parts by weight of zinc oxide, 0.1~2 parts by weight of stearic acid,
1~2 parts by weight of promotor, 2~3.5 parts by weight of anti-aging agent, 1~2 parts by weight of paraffin, 1.5~2.5 parts by weight of sulphur, three oxidations
Two antimony, 1~2 parts by weight, 3~5 parts by weight of chlorinated paraffin, 50~85 parts by weight of solid flame retardant, 10~14 weight of flame-resistant lubricant
Part, 35~43 parts by weight of carbon black.
The present invention selects to be made of the main gel as rubber cover natural gum, butadiene-styrene rubber, cis-butadiene cement, solves to use neoprene
It is easy the technological problems such as roll banding, incipient scorch, resting period be short.The formula substantially reduces harmful and raw cigarette material such as halogen, antimony, after burning
Smoke amount is low.The indexs such as formula intensity, wearability, anti-flammability, bonding extraction are significantly larger than standard requirements.Formulation cost ratio uses
Neoprene glue formula substantially reduces, and economic benefit and social benefit are obvious.
The present invention provides a kind of core rubbers, including：
10~30 parts by weight of natural rubber, 70~90 parts by weight of butadiene-styrene rubber, 5~8 parts by weight of zinc oxide, light magnesium oxide
1~3 parts by weight, 0~2 parts by weight of stearic acid, 1~2 parts by weight of promotor, 2~4 parts by weight of anti-aging agent, 1.5~3 weight of sulphur
Part, 2~3 parts by weight of cobalt salt, 3~6 parts by weight of adhesive, 7~12 parts by weight of white carbon black, 1~3 parts by weight of antimony oxide, chlorine
3~6 parts by weight of fossil waxes, 50~90 parts by weight of solid flame retardant, 35~45 parts by weight of carbon black.
Core rubber provided by the invention includes the natural rubber of 10~30 parts by weight；Preferably include the natural of 12~28 parts by weight
Rubber；It more preferably include the natural rubber of 15~27 parts by weight；It most preferably include the natural rubber of 20~26 parts by weight.The present invention
It is commercially available to its source without limiting.
The present invention for the natural rubber without limit, it is well known to those skilled in the art.Natural rubber is
One kind is (C with polyisoprene natural polymer as main component, molecular formula5H8) n, 91% in ingredient~
94% is rubber hydrocarbon (polyisoprene), remaining is the nonrubber materials such as protein, fatty acid, ash content, carbohydrate.
Core rubber provided by the invention includes the butadiene-styrene rubber of 70~90 parts by weight；Preferably include the butylbenzene of 72~85 parts by weight
Rubber；It more preferably include the butadiene-styrene rubber of 75~80 parts by weight.The present invention to its source without limit, it is commercially available.
The present invention for the butadiene-styrene rubber without limit, it is well known to those skilled in the art.Butadiene-styrene rubber
(SBR), also known as polystyrenebutadienes copolymer.The service performance of its physical mechanism performance, processing performance and product close to
Natural rubber, some performances are for example wear-resisting, heat-resisting, ageing-resistant and curingprocess rate is more excellent compared with natural rubber, mainly for the manufacture of
Tire, conveyer belt, sebific duct, adhesive sponge rubber, dipping fiber and fabric, can also be directly used as adhesive, coating.The present invention
The preferred trade mark of butadiene-styrene rubber is 1502.
Core rubber provided by the invention includes the zinc oxide of 5~8 parts by weight；Preferably include the zinc oxide of 5~7 parts by weight；More
Preferably include the zinc oxide of 5~6 parts by weight.
The present invention for the zinc oxide without limit, it is well known to those skilled in the art.The present invention comes it
Source is commercially available without limiting.
Core rubber provided by the invention includes the light magnesium oxide of 1~3 parts by weight；Preferably include the lightweight oxygen of 2~3 parts by weight
Change magnesium.
Core rubber provided by the invention includes the stearic acid of 0~2 parts by weight；Preferably include the tristearin of 0.5~1.5 parts by weight
Acid.
Core rubber provided by the invention includes the promotor of 1~2 parts by weight；Preferably include the promotor of 1.5~2 amount parts.
Promotor of the present invention is preferably selected from 2- benzothiazolyl mercaptan, dibenzothiazyl disulfide, N- ring ethyl -2-
Two in benzothiazole sulfenamide, N- oxidation diethylidene -2-[4-morpholinodithio sulfenamide and tetramethylthiuram disulfide
Kind is two or more.
The present invention for the promotor without limit, it is well known to those skilled in the art.The present invention comes it
Source is commercially available without limiting.
Core rubber provided by the invention includes the anti-aging agent of 2~4 parts by weight；Preferably include the anti-old of 2.3~3.5 parts by weight
Agent.
Anti-aging agent of the present invention is preferably selected from 2,2,4- trimethyl -1,2- dihyaroquinoline, N- isopropyl-N '-phenyl
Two or more in p-phenylenediamine, 9,9-dimethylacridan.The present invention is for the anti-aging agent without restriction, ability
Known to field technique personnel.The present invention to its source without limit, it is commercially available.
Core rubber provided by the invention includes the sulphur of 1.5~3 parts by weight；Preferably include the sulphur of 1.8~2.8 parts by weight；
It more preferably include the sulphur of 1.8~2.5 parts by weight.
Core rubber provided by the invention includes the cobalt salt of 2~3 parts by weight；Preferably include the cobalt salt of 2.3~2.9 parts by weight.
Core rubber provided by the invention includes the adhesive of 3~6 parts by weight；Preferably include the adhesive of 3~5 parts by weight.
Adhesive of the present invention is preferably selected from the precondensate of hexa methoxy methyl melamine, resorcinol and formaldehyde, horse
Carry out two or more in acid anhydrides complexing butadiene and modified cyanurotriamide compound.
Core rubber provided by the invention includes the white carbon black of 7~12 parts by weight；Preferably include the white carbon black of 8~11 parts by weight；
It more preferably include the white carbon black of 8~10 parts by weight.
White carbon black of the present invention is preferably BET specific surface area >=200m2/g。
Core rubber provided by the invention includes the antimony oxide of 1~3 parts by weight；Preferably include three oxygen of 1.5~3 parts by weight
Change two antimony.
Core rubber provided by the invention includes the chlorinated paraffin of 3~6 parts by weight；Preferably include the chlorination stone of 4~6 parts by weight
Wax；It more preferably include the chlorinated paraffin of 4.5~6 parts by weight.
Core rubber provided by the invention includes the solid flame retardant of 50~90 parts by weight；Preferably include consolidating for 55~85 parts by weight
Body fire retardant；It more preferably include the solid flame retardant of 60~80 parts by weight.
Solid flame retardant of the present invention be selected from superfine alumina silicate, silicon-series five-retardant, ammonium polyphosphate, ultrafine aluminium hydroxide,
Two or more in expansion type flame retardant and zinc borate.
Core rubber provided by the invention includes the carbon black of 35~45 parts by weight；Preferably include the carbon black of 35~43 parts by weight；More
Preferably include the carbon black of 37~40 parts by weight.
The white carbon black is BET specific surface area >=200m2/g。
The high fire-retardant core rubber of bonding is finally prepared by above-mentioned specific formula and ratio in the present invention.
The present invention provides a kind of steel core conveyor belts, including core rubber described in wirerope, above-mentioned technical proposal
With rubber cover described in above-mentioned technical proposal.
The present invention selects to be made of the main gel as rubber cover natural gum, butadiene-styrene rubber, cis-butadiene cement, solves to use neoprene
It is easy the technological problems such as roll banding, incipient scorch, resting period be short.It is harmful and raw that core rubber of the present invention and rubber cover substantially reduce halogen, antimony etc.
Cigarette material, burning after-fume amount is low, while by specific core rubber and covering adhesive formulation rubber cover intensity height, core rubber is bonded
Intensity is high, content of halogen is low.
The present invention provides a kind of preparation methods of steel core conveyor belt, including：
A butadiene-styrene rubber, natural rubber, cis-butadiene cement) are mixed into preheating 40s~60s；Be added zinc oxide, stearic acid, promotor,
Anti-aging agent, paraffin, sulphur, antimony oxide, chlorinated paraffin, solid flame retardant, flame-resistant lubricant mixing 50s~80s, then plus
Enter carbon black, 130~140 DEG C of dumpings；Obtain one section of mixing rubber cover；One section of rubber compound is preheated, is mixed with vulcanizing agent, obtains two
Section is kneaded rubber cover；
Butadiene-styrene rubber, natural rubber are mixed into preheating 40s~60s；Zinc oxide, light magnesium oxide, stearic acid, promotion is added
Agent, anti-aging agent, sulphur, cobalt salt, adhesive, white carbon black, antimony oxide, chlorinated paraffin mixing 50s~80s, are eventually adding charcoal
It is black, 130~140 DEG C of dumpings；Obtain one section of mixing core rubber；One section of rubber compound is preheated, mixes, obtains with vulcanizing agent and adhesive
Two-stage mixing core rubber；
B two-stage mixing rubber cover, the calendering of two-stage mixing core rubber, cold pressing, vulcanization) are obtained into steel core conveyor belt.
The present invention is plasticated on rubber mixing equipment first, is blended, it is preferred to use two sections of mixing method.
Butadiene-styrene rubber, natural rubber, cis-butadiene cement are mixed preheating 40s~60s first by the present invention；The preheating is preferably 40s
~60s；More preferably 40s~50s.
It is of the present invention mixing and preheating concrete mode without limit, for specifically match it is above-mentioned had it is clear
Description, details are not described herein.
After preheating, zinc oxide, stearic acid, promotor, anti-aging agent, paraffin, sulphur, antimony oxide, chlorination stone are added
Wax, solid flame retardant, flame-resistant lubricant mixing 50s~80s,
The mixing temperature is preferably 130~140 DEG C；The incorporation time is preferably 50s~70s.
It is of the present invention mixing with concrete mode without limit, for specifically match it is above-mentioned had clearly retouch
It states, details are not described herein.
Carbon black, 130~140 DEG C of dumpings are then added；Obtain one section of mixing rubber cover.
The present invention is added with the concrete mode of dumping for described without limiting, well known to those skilled in the art to be
It can.
The temperature of dumping of the present invention is preferably 135~140 DEG C of dumpings.
One section of mixing rubber cover is obtained after dumping；One section of rubber compound is preheated, is mixed with vulcanizing agent, is obtained two-stage mixing and cover
Lid glue；
The preheating is preferably carried out in banburying chamber, and the preheating time is 25~35s, more preferably 30s.The banburying chamber
Temperature is 80~100 DEG C.For the present invention for the mixing and the concrete mode being kneaded without limiting, those skilled in the art are ripe
Know.
It is below specially preparation core rubber：
Butadiene-styrene rubber, natural rubber are mixed into preheating 40s~60s first；Preferably 40s~50s.It is of the present invention mixing with
And preheating concrete mode without limit, for specifically match it is above-mentioned be clearly described, details are not described herein.
Zinc oxide, light magnesium oxide, stearic acid, promotor, anti-aging agent, sulphur, cobalt salt, adhesive, white carbon black, three is added
Aoxidize two antimony, chlorinated paraffin mixing 50s~80s.
The mixing temperature is preferably 130~140 DEG C；The incorporation time is preferably 50s~70s.
It is of the present invention mixing with concrete mode without limit, for specifically match it is above-mentioned had clearly retouch
It states, details are not described herein.
It is eventually adding carbon black, 130~140 DEG C of dumpings；Obtain one section of mixing core rubber.
The present invention is added with the concrete mode of dumping for described without limiting, well known to those skilled in the art to be
It can.The temperature of dumping of the present invention is preferably 135~140 DEG C of dumpings.
One section of rubber compound is preheated, is mixed with vulcanizing agent and adhesive, obtains two-stage mixing core rubber.
The preheating is preferably carried out in banburying chamber, the 25~35s, more preferably 30s.The mixing room temperature be 80~
100℃.The present invention for it is described mixing and mixing concrete mode without limit, it is well known to those skilled in the art.
After obtaining two-stage mixing rubber cover, two-stage mixing core rubber, two-stage mixing rubber cover, two-stage mixing core rubber are rolled,
Cold pressing, vulcanization obtain steel core conveyor belt.
The present invention for it is described calendering, cold pressing, vulcanization concrete operations without limit, it is well known to those skilled in the art
?.
Rubber cover calendering is in blocks:Rubber cover through open mill slightly refine and thin refining after, into calender be rolled into required thickness and
The overlap film of width.
Intermediate rubber calendering is in blocks:Intermediate rubber through open mill slightly refine and thin refining after, into calender be rolled into required thickness and
The intermediate film of width.
Specifically, the two-stage mixing covering rubber calendering parameter is specially：75 DEG C~85 DEG C of upper roller temperature, 65 DEG C of middle roller temperature~
75 DEG C, 40 DEG C~50 DEG C of lower roller temperature；The two-stage mixing core rubber rolls parameter：75 DEG C~85 DEG C of upper roller temperature, middle roller temperature
80 DEG C~90 DEG C, 50 DEG C~60 DEG C of lower roller temperature；The curing temperature is 145 DEG C~150 DEG C.
After calendering, carry out hanging up wire rope spindle by defined wirerope type, diameter, radical, spindle should be hung up as far as possible
Full middle part and front, then extend to two sides and rear portion again.Spindle bridging and export wirerope, left and right twist spindles are spaced,
Wirerope is exported from spindle upper section, guides rough segmentation carding device by guide groove rod and orifice plate.
For wirerope from dividing comb middle part to introduce tension station rough segmentation carding device by root, left and right twirl is spaced, suitable to point comb two sides
Sequence arrangement.Every wirerope penetrates corresponding tension roller groove, and forward outside haul-off tension station.Start spindle torque motor, makes
Spindle reverses backrush wirerope, and Torque-adjusting motor makes wirerope on spindle shelf have certain initial tension, it is flat to rise tension station
Platform makes all wirerope be in a horizontal state, and tension is determined in application.
It is then cold pressing, specially：The uniformly rubber cover and the compound film of core rubber of export forming, is cold-pressed.Cold pressing
Band embryo should be checked paragraph by paragraph afterwards, be modified in time, and pierce bubble removing, partially thin to local thickness or defective band embryo should be sticked on
The purposes of the same race of suitable thickness repairs film, fill up cutting flat with.
It is finally vulcanization：Specially：Vulcanization is conveyer belt finished product.On vulcanizer, in certain temperature, pressure and time
Under, it will be the conveyer belt finished product with elastomer performance with embryo heating press cure.For the curing efficiency and sulphur for improving conveyer belt
Change quality, preferably 145~150 DEG C of the curing temperature of the conveyer belt.
In order to further illustrate the present invention, with reference to embodiments to steel core conveyor belt provided by the invention and
Preparation method is described in detail.
Embodiment 1
According to the high-strength low fire-retardant covering adhesive formulation of halogen (by weight) concrete component of the present invention：
1,10 parts of natural rubber, 60 parts of butadiene-styrene rubber, 30 parts of butadiene rubber, 5 parts of zinc oxide, 1.5 parts of stearic acid, promotor
1 part of CZ, 1 part of altax, 1 part of antioxidant 4010NA, 1.5 parts of anti-aging agent RD, 2 parts of paraffin, 2.8 parts of sulphur, three oxidations two
It is 2.5 parts of antimony, 6 parts of chlorinated paraffin, 12 parts of superfine alumina silicate F100,28 parts of silicon-series five-retardant DIN-K, 8 parts of ammonium polyphosphate, ultra-fine
12 parts of aluminium hydroxide, expansion type flame retardant IFR 10,10 parts of MB-202, add up to 244.3 parts by 40 parts of carbon black N220.
Height bonds fire-retardant core rubber formula (by weight) concrete component：
20 parts of natural rubber, 80 parts of butadiene-styrene rubber, 5 parts of zinc oxide, 3 parts of light magnesium oxide, 1.2 parts of stearic acid, promotor
1.2 parts of NOBS, 0.8 part of altax, 0.8 part of antioxidant 4010NA, 1.5 parts of antioxidant BLE, 2.5 parts of sulphur, cobalt salt
2.3 parts, 3 parts of PM-18,10 parts of white carbon black, 3 parts of antimony oxide, 6 parts of chlorinated paraffin, 18 parts of superfine alumina silicate F100, silicon systems
30 parts of fire retardant DIN-K, 12 parts of ultrafine aluminium hydroxide, 10 parts of zinc borate, add up to 255.3 parts by 45 parts of carbon black N220.
Specific preparation method：
1, rubber cover：Butadiene-styrene rubber, natural rubber, cis-butadiene cement investment banburying chamber are first preheated into 40s~60s；It adds, aoxidize
Zinc, stearic acid, anti-aging agent, paraffin, ultra-fine Sb2O3,70# chlorinated paraffin, solid flame retardant, flame-resistant lubricant, 50s~80s；Again
Carbon black is added.Rubber cover temperature control dumping at 140 DEG C.First by one section of rubber compound investment banburying chamber preheating, adds and add sulphur
Agent.Mixing room temperature is controlled at 100 DEG C or less.
Core rubber：Calendering process is using two sections of mixings.First segment charging sequence：First butadiene-styrene rubber, natural rubber, cis-butadiene cement are thrown
Enter banburying chamber's preheating；Add zinc oxide, stearic acid, anti-aging agent, paraffin, ultra-fine Sb2O3,70# chlorinated paraffin, solid fireproof
Agent, some adhesive；Carbon black is being added.Then first one section of rubber compound investment banburying chamber preheating is added and adds vulcanizing agent and portion
Divide adhesive.Mixing room temperature is controlled at 100 DEG C or less.
2, rubber cover is rolled into the rubber cover of required thickness and width into calender after open mill slightly refines and carefully refines
Piece.Lid glue laminated blade technolgy parameter is 80 DEG C of upper roller temperature, 70 DEG C of middle roller temperature, 45 DEG C of lower roller temperature.
The calendering of 3 intermediate rubbers is in blocks:Intermediate rubber through open mill slightly refine and thin refining after, into calender be rolled into required thickness and
The intermediate film of width.Upper 80 DEG C of roller temperature, 85 DEG C of middle roller temperature, 55 DEG C of lower roller temperature when rubberizing.
4 are carried out hanging up wire rope spindle by defined wirerope type, diameter, radical, and spindle should hang up full middle part as far as possible
And front, then extend again to two sides and rear portion.Spindle bridging and export wirerope, left and right twist spindles are spaced, by steel wire
Rope is exported from spindle upper section, guides rough segmentation carding device by guide groove rod and orifice plate.
For 5 wirerope from dividing comb middle part to introduce tension station rough segmentation carding device by root, left and right twirl is spaced, suitable to point comb two sides
Sequence arrangement.Every wirerope penetrates corresponding tension roller groove, and forward outside haul-off tension station.Start spindle torque motor, makes
Spindle reverses backrush wirerope, and Torque-adjusting motor makes wirerope on spindle shelf have certain initial tension, it is flat to rise tension station
Platform makes all wirerope be in a horizontal state, and tension is determined in application.
6 uniformly export the rubber cover and the compound film of core rubber of forming, are cold-pressed.Band embryo should be examined paragraph by paragraph after cold pressing
It looks into, modifies in time, and pierce bubble removing, partially thin to local thickness or defective band embryo should stick on the purposes of the same race of suitable thickness
Film is repaired, fill up cutting flat with.
7 vulcanizations are conveyer belt finished product.On vulcanizer, under certain temperature, pressure and time, it will heat and pressurize with embryo
Vulcanization is the conveyer belt finished product with elastomer performance.For improve conveyer belt curing efficiency and vulcanized quality, the conveyer belt
Curing temperature is generally set in 145 DEG C.
Workshop conversion testing result, such as table are carried out for workshop conversion sizing material and steel core conveyor belt is prepared
1 and table 2 shown in, wherein table 1 be workshop convert sizing material testing result；Table 2 is completed belt examining report.
Table 1
Table 2：Completed belt examining report
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of rubber cover, including：
0~20 parts by weight of natural rubber, 60~80 parts by weight of butadiene-styrene rubber, 20~30 parts by weight of butadiene rubber, zinc oxide 3~6
Parts by weight, 0~2 parts by weight of stearic acid, 1~2 parts by weight of promotor, 2~4 parts by weight of anti-aging agent, 1~2 parts by weight of paraffin, sulphur
1.5~3 parts by weight, 1~3 parts by weight of antimony oxide, 3~6 parts by weight of chlorinated paraffin, 50~90 parts by weight of solid flame retardant,
10~15 parts by weight of flame-resistant lubricant, 35~45 parts by weight of carbon black.
2. rubber cover according to claim 1, which is characterized in that including：1~18 parts by weight of natural rubber, butadiene-styrene rubber
65~75 parts by weight, 22~28 parts by weight of butadiene rubber, 4~5 parts by weight of zinc oxide, 0.1~2 parts by weight of stearic acid, promotor 1
~2 parts by weight, 2~3.5 parts by weight of anti-aging agent, 1~2 parts by weight of paraffin, 1.5~2.5 parts by weight of sulphur, antimony oxide 1~2
Parts by weight, 3~5 parts by weight of chlorinated paraffin, 50~85 parts by weight of solid flame retardant, 10~14 parts by weight of flame-resistant lubricant, carbon black
35~43 parts by weight.
3. rubber cover according to claim 1, which is characterized in that the promotor is selected from 2- benzothiazolyl mercaptan, two
Dibenzothiazyl disulfide, N- ring ethyl -2-[4-morpholinodithio sulfenamide, N- aoxidize diethylidene -2-[4-morpholinodithio sulfenamide
With two or more in tetramethylthiuram disulfide；
The anti-aging agent is selected from 2,2,4- trimethyl -1,2- dihyaroquinoline, N- isopropyl-N '-diphenyl-para-phenylene diamine, 9,9- bis-
Two or more in methylacridine.
4. rubber cover according to claim 1, which is characterized in that the solid flame retardant is selected from superfine alumina silicate, silicon systems
Two or more in fire retardant, ammonium polyphosphate, ultrafine aluminium hydroxide, expansion type flame retardant and zinc borate；It is described fire-retardant
Lubricant is MB-202.
5. a kind of core rubber, including：
10~30 parts by weight of natural rubber, 70~90 parts by weight of butadiene-styrene rubber, 5~8 parts by weight of zinc oxide, light magnesium oxide 1~3
Parts by weight, 0~2 parts by weight of stearic acid, 1~2 parts by weight of promotor, 2~4 parts by weight of anti-aging agent, 1.5~3 parts by weight of sulphur, cobalt
2~3 parts by weight of salt, 3~6 parts by weight of adhesive, 7~12 parts by weight of white carbon black, 1~3 parts by weight of antimony oxide, chlorinated paraffin
3~6 parts by weight, 50~90 parts by weight of solid flame retardant, 35~45 parts by weight of carbon black.
6. core rubber according to claim 5, which is characterized in that the promotor is selected from 2- benzothiazolyl mercaptan, two sulphur
Change bisbenzothiazole, N- ring ethyl -2-[4-morpholinodithio sulfenamide, N- oxidation diethylidene -2-[4-morpholinodithio sulfenamide and
Two or more in tetramethylthiuram disulfide；
The anti-aging agent is selected from 2,2,4- trimethyl -1,2- dihyaroquinoline, N- isopropyl-N '-diphenyl-para-phenylene diamine, 9,9- bis-
Two or more in methylacridine；
Described adhesive is selected from hexa methoxy methyl melamine, the precondensate of resorcinol and formaldehyde, maleic anhydride and fourth two is complexed
Two or more in alkene and modified cyanurotriamide compound.
7. core rubber according to claim 5, which is characterized in that the solid flame retardant is the solid flame retardant selected from super
Two kinds or two kinds in thin alumina silicate, silicon-series five-retardant, ammonium polyphosphate, ultrafine aluminium hydroxide, expansion type flame retardant and zinc borate
More than；The white carbon black is BET specific surface area >=200m2/g。
8. a kind of steel core conveyor belt, including core rubber and right described in wirerope, claim 5~7 any one
It is required that rubber cover described in 1~4 any one.
9. a kind of preparation method of steel core conveyor belt, including：
A butadiene-styrene rubber, natural rubber, cis-butadiene cement) are mixed into preheating 40s~60s；Zinc oxide is added, stearic acid, promotor, prevents always
Agent, paraffin, sulphur, antimony oxide, chlorinated paraffin, solid flame retardant, flame-resistant lubricant mixing 50s~80s, are then added charcoal
It is black, 130~140 DEG C of dumpings；Obtain one section of mixing rubber cover；One section of rubber compound is preheated, is mixed with vulcanizing agent, two sections is obtained and mixes
Refine rubber cover；
Butadiene-styrene rubber, natural rubber are mixed into preheating 40s~60s；Zinc oxide is added, light magnesium oxide, stearic acid, promotor, prevents
Old agent, sulphur, cobalt salt, adhesive, white carbon black, antimony oxide, chlorinated paraffin mixing 50s~80s, are eventually adding carbon black, and 130
~140 DEG C of dumpings；Obtain one section of mixing core rubber；One section of rubber compound is preheated, is mixed with vulcanizing agent and adhesive, two sections is obtained and mixes
Refine core rubber；
B two-stage mixing rubber cover, the calendering of two-stage mixing core rubber, cold pressing, vulcanization) are obtained into steel core conveyor belt.
10. preparation method according to claim 9, which is characterized in that the two-stage mixing covering rubber calendering parameter is specific
For：75 DEG C~85 DEG C of upper roller temperature, 65 DEG C~75 DEG C of middle roller temperature, 40 DEG C~50 DEG C of lower roller temperature；The two-stage mixing core rubber calendering ginseng
Number is specially：75 DEG C~85 DEG C of upper roller temperature, 80 DEG C~90 DEG C of middle roller temperature, 50 DEG C~60 DEG C of lower roller temperature；The curing temperature is 145
DEG C~150 DEG C.
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| CN109775243A (en) * | 2019-03-18 | 2019-05-21 | 兖矿东华重工有限公司 | One kind resists cold fire-retardant rubber cover, the fire-retardant intermediate rubber that resists cold, the fire-retardant core rubber that resists cold and cold-resistant flame-proof armored rope core conveyer belt |
| CN110343487A (en) * | 2019-07-16 | 2019-10-18 | 无锡百年通工业输送有限公司 | Lamination fire retarding conveying band rubberizing and preparation method thereof |
| CN110577679A (en) * | 2019-05-29 | 2019-12-17 | 山东瀚邦胶带有限公司 | formula and processing technology of non-neoprene formula flame-retardant conveying belt |
| CN110724316A (en) * | 2019-11-04 | 2020-01-24 | 山东康迪泰克工程橡胶有限公司 | Conveyor belt upper cover rubber easy to clean, preparation method thereof and conveyor belt |
| CN114213998A (en) * | 2021-12-17 | 2022-03-22 | 浙江升华云峰新材股份有限公司 | Inorganic flame retardant, mildew-proof flame-retardant aldehyde-free adhesive, preparation method and application of mildew-proof flame-retardant aldehyde-free adhesive, and preparation method of mildew-proof flame-retardant aldehyde-free adhesive |
| CN114805955A (en) * | 2022-04-08 | 2022-07-29 | 马顺发 | Silicon series flame-retardant masterbatch core glue formula |
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