CN110843291A - Energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveyor belt and preparation method thereof - Google Patents

Energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveyor belt and preparation method thereof Download PDF

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Publication number
CN110843291A
CN110843291A CN201911122896.XA CN201911122896A CN110843291A CN 110843291 A CN110843291 A CN 110843291A CN 201911122896 A CN201911122896 A CN 201911122896A CN 110843291 A CN110843291 A CN 110843291A
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China
Prior art keywords
parts
rubber
carbon black
internal mixer
mixing
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CN201911122896.XA
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Chinese (zh)
Inventor
宋鑫
宋长江
王巍
魏雪梅
李朝红
周震宇
汪健
袁陆海
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ANHUI ZHONGYI RUBBER BELTS Co.,Ltd.
SHANGHAI MEIKE DETECTION TECHNOLOGY Co.,Ltd.
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ANHUI ZHONGYI RUBBER BELTS Co Ltd
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Priority to CN201911122896.XA priority Critical patent/CN110843291A/en
Publication of CN110843291A publication Critical patent/CN110843291A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/042—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/12—Layered products comprising a layer of natural or synthetic rubber comprising natural rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/21—Anti-static
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • C08K3/02—Elements
    • C08K2003/026—Phosphorus
    • 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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/04—Antistatic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/22—Halogen free composition
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • 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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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses an energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveyor belt and a manufacturing method thereof. Simple process and easy manufacture.

Description

Energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveyor belt and preparation method thereof
Technical Field
The invention relates to the technical field of mining conveying belts, in particular to an energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveying belt and a preparation method thereof.
Background
The fabric laminated flame-retardant conveyor belt is mainly used for conveying coal underground in a coal mine, and according to the regulation of coal mine safety regulations, the conveyor belt used underground must have flame-retardant and antistatic properties, and must meet the regulation of MT830-2008 'fabric laminated flame-retardant conveyor belt for coal mine', the standard has higher requirement on the flame-retardant property of the conveyor belt, and has lower requirement on the mechanical property of a covering layer. The fabric laminated flame-retardant conveyor belt produced by the prior art has better flame-retardant and antistatic properties, and has the main problems that the mechanical property of a covering layer is lower, the outstanding performance is poor wear resistance and the service life is short; secondly, the main material containing halogen and the flame retardant containing halogen and antimony are used, the ignition amount of the flame retardant belt is large, and the smoke contains halogen, so that secondary disasters such as personnel poisoning, equipment corrosion and environmental pollution are easily caused; and thirdly, the rolling resistance is large and the energy consumption is high in the using process.
Researches show that the indentation rolling resistance of the conveying belt accounts for more than 60% of the main resistance of the conveyor, so that the reduction of the indentation rolling resistance of the conveying belt has important significance for reducing the energy consumption of the conveyor, reducing the operation cost and improving the economic benefit. The belt indentation rolling resistance is due to the viscoelastic properties of the running surface of the belt and mainly due to the dynamic viscoelastic properties of the cover layer. The loss factor (tan delta value at 60 ℃) is an important parameter for representing the dynamic viscoelasticity of the material, and the reduction of tan delta can reduce the hysteresis loss of the running surface of the conveyer belt, correspondingly reduce the power consumption of the conveyer belt and achieve the purpose of energy conservation. Rubber materials having a tan delta (tan delta value at 60 ℃) of less than or equal to 0.15 are generally defined as low rolling resistance or energy-saving rubber materials. Therefore, the tan delta value of the covering layer of the conveying belt is reduced by optimizing the formula and the process, and the effective way for reducing the rolling resistance of the conveying belt is provided. The prior art has more researches on how to improve the flame retardant property and the adhesive property of the flame retardant conveyor belt, and has less researches on the energy-saving wear-resistant low-smoke halogen-free fabric laminated flame retardant conveyor belt.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveyor belt which has excellent wear resistance and impact resistance, good flame retardance, low rolling resistance, energy conservation, environmental friendliness, long service life and low driving power of a conveyor.
The second purpose of the invention is to provide a preparation method of the conveyer belt, which has simple process and easy manufacture.
The purpose of the invention is realized by the following scheme:
the invention provides an energy-saving, wear-resistant and low-smoke halogen-free fabric laminated flame-retardant conveyor belt, which comprises a fabric canvas framework layer, a canvas adhesive layer, an upper covering adhesive layer and a lower covering adhesive layer, and is characterized in that: the upper covering glue layer and the lower covering glue layer consist of the following components in percentage by weight:
50 parts of tin coupling solution polymerized styrene-butadiene rubber (SSBR-SL 552), 20-30 parts of Natural Rubber (NR), 20-30 parts of butadiene rubber (BR 9000), 4-6 parts of zinc oxide, 1-3 parts of stearic acid, 1.5-2.0 parts of sulfur, 1.5-2.0 parts of accelerator, 2-3 parts of anti-aging agent, 1-2 parts of protective wax, 0.5-1 part of anti-scorching agent CTP, 20-25 parts of low rolling resistance carbon black, 4 parts of conductive carbon black, 20-25 parts of high dispersion white carbon black, 4-6 parts of wear-resisting agent (HSR-580), 3 parts of adhesive (AS-88), 4-6 parts of C5 petroleum resin, 4-6 parts of aramid pulp, 2-4 parts of silane coupling agent (Si69), 10-16 parts of halogen-free flame retardant plasticizer and 60-70 parts of halogen-free flame retardant.
The promoter is a combination of promoter CZ and promoter TMTD, the anti-aging agent is a combination of anti-aging agent RD and anti-aging agent 4020, and the low rolling resistance carbon black is selected from Degussa EB122, EB123 or cabot CRXTMAny one of the one or more of 1436,
the halogen-free flame retardant plasticizer can be any one of diphenyl isooctyl phosphate (DPOP), tricresyl phosphate (TCP) and trioctyl phosphate (TOP), and the halogen-free flame retardant is a combination of microcapsule red phosphorus, zinc borate, ammonium polyphosphate (APP) and melamine phosphate (MPP).
The canvas adhesive layer rubber material is a low-smoke halogen-free flame-retardant adhesive rubber composite material and comprises the following components in percentage by weight:
80 parts of styrene butadiene rubber (SBR 1500), 20 parts of Natural Rubber (NR), 4 parts of sulfur, 6 parts of zinc oxide, 1.5 parts of accelerator CZ, 0.7 part of accelerator M, 2 parts of stearic acid, 2 parts of anti-aging agent BEL, 3 parts of adhesive AS-883, 12 parts of white carbon black, 12-16 parts of microcapsule red phosphorus, 20-30 parts of zinc borate, 12-16 parts of ammonium polyphosphate (APP), 12-16 parts of melamine phosphate (MPP), 6 parts of carbon black N66015 and 3 parts of silane coupling agent (Si 69).
The fabric canvas framework layer is formed by overlapping a plurality of layers of flame-retardant gummed canvas after gumming, and the framework material can be selected from nylon flame-retardant gummed canvas (NN100-500) or polyester flame-retardant gummed canvas (EP 100-500).
The thickness of the upper covering glue layer is 3-8mm, and the thickness of the lower covering glue layer is 1.5-4 mm.
The invention provides a manufacturing method of an energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveyor belt, which comprises the following steps:
(1) preparing an upper covering layer sizing material and a lower covering layer sizing material:
the sizing materials of the upper and lower covering glue layers comprise the following components in percentage by weight:
50 parts of tin coupling solution polymerized styrene-butadiene rubber (SSBR-SL 552), 20-30 parts of Natural Rubber (NR), 20-30 parts of butadiene rubber (BR 9000), 4-6 parts of zinc oxide, 1-3 parts of stearic acid, 1.5-2.0 parts of sulfur, 1.5-2.0 parts of accelerator, 2-3 parts of anti-aging agent, 1-2 parts of protective wax, 0.5-1 part of anti-scorching agent CTP, 20-25 parts of low rolling resistance carbon black, 4 parts of conductive carbon black, 20-25 parts of high dispersion white carbon black, 4-6 parts of wear-resisting agent (HSR-580), 3 parts of adhesive (AS-88), 4-6 parts of C5 petroleum resin, 4-6 parts of aramid pulp, 2-4 parts of silane coupling agent (Si69), 10-16 parts of halogen-free flame retardant plasticizer and 60-70 parts of halogen-free flame retardant.
Preparing the mixture into three-stage rubber compound:
1) plasticating natural rubber:
plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) first-stage mixing:
firstly, plasticated natural rubber, styrene butadiene rubber and butadiene rubber are put into an internal mixer for mixing for 40-50 seconds, zinc oxide, an anti-aging agent, an anti-scorching agent, carbon black, conductive carbon black, stearic acid, protective wax, an anti-wear agent, petroleum resin and a halogen-free flame retardant plasticizer are put into the internal mixer, the mixing is continued for 150-180 seconds, the rubber discharging temperature is 140-150 ℃, the mixture is discharged and cooled to prepare a section of mixed rubber, and the mixed rubber is used after being placed for 8 hours;
3) modifying the flame retardant:
adding white carbon black, aramid fiber pulp and a halogen-free flame retardant into a kneader, heating and stirring at the stirring speed of 375-400 r/min to 40-60 ℃, spraying a silane coupling agent, continuing heating and stirring, stirring at the temperature of 115-125 ℃ for 10-15 min to prepare a surface modified flame retardant, and cooling for use;
4) and (3) second-stage mixing:
adding the first-stage rubber compound and the surface modification fire retardant into an internal mixer for mixing, wherein the rotor speed of the internal mixer is 50 r/min, the mixing time is 150-;
5) three-stage mixing:
the three-stage mixing was carried out using an internal mixer with a rotor speed of 20 rpm. The two-section rubber compound, sulfur, an accelerant and an adhesive are put into an internal mixer for mixing for 100-120 seconds, the rubber discharge temperature is 90-100 ℃, and the mixture is taken out and cooled to prepare three-section rubber compound;
(2) preparing a canvas rubberizing layer sizing material:
the canvas rubberizing layer rubber material comprises the following components in percentage by weight:
80 parts of styrene butadiene rubber (SBR 1500), 20 parts of Natural Rubber (NR), 4 parts of sulfur, 6 parts of zinc oxide, 1.5 parts of accelerator CZ, 0.7 part of accelerator M, 2 parts of stearic acid, 2 parts of anti-aging agent BEL, 3 parts of adhesive AS-883, 12 parts of white carbon black, 12-16 parts of microcapsule red phosphorus, 20-30 parts of zinc borate, 12-16 parts of ammonium polyphosphate (APP), 12-16 parts of melamine phosphate (MPP), 6 parts of carbon black N66015 and 3 parts of silane coupling agent (Si 69).
Preparing the mixture into three-stage rubber compound:
1) plasticating natural rubber
Plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) first-stage mixing:
firstly, three sections of plasticated natural rubber and styrene butadiene rubber are put into an internal mixer for mixing for 40-50 seconds; adding zinc oxide, stearic acid, an anti-aging agent and carbon black, continuously mixing for 180 seconds at the temperature of 140 ℃ for rubber discharge and 150 ℃, discharging, cooling to prepare a section of rubber compound, and standing for 8 hours for use;
3) modifying the flame retardant:
adding white carbon black, microcapsule red phosphorus, zinc borate, ammonium polyphosphate and melamine phosphate into a kneader, heating and stirring at the stirring speed of 375-400 r/min, heating to 40-60 ℃, spraying a silane coupling agent, continuing heating and stirring, stirring at the temperature of 115-125 ℃ for 10-15 min to prepare a surface modified flame retardant, and cooling for use;
4) and (3) second-stage mixing:
adding the first-stage rubber compound and the surface modification fire retardant into an internal mixer for mixing, wherein the rotor speed of the internal mixer is 50 r/min, the mixing time is 150-;
5) three-stage mixing:
an internal mixer is used in the three-stage mixing, the rotor speed of the internal mixer is 20 r/min, the first-stage mixed rubber, the cobalt boracylate, the sulfur, the accelerant and the adhesive are put into the internal mixer for mixing for 100 and 120 seconds, the rubber discharge temperature is 90-100 ℃, the sheet is taken out and cooled, and the three-stage mixed rubber is prepared and is used after being placed for 8 hours;
(3) rubberizing a canvas:
hot-pasting the canvas rubberizing layer rubber material on the upper surface and the lower surface of the rubberized canvas according to the thickness required by the process by a cold feed extruder and a four-roller calender;
(4) rolling out a sheet:
preparing upper and lower cover layer rubber sheets from the upper and lower cover layer rubber materials according to the thickness required by the process by using a cold feed extruder and a four-roll calender;
(5) forming a strip blank:
firstly, adhering rubberized canvas together according to the number of layers required by the process by an automatic tension forming machine, and then adhering the rubberized canvas to upper and lower covering layer films to prepare a belt blank;
(6) plate vulcanization:
and vulcanizing the belt blank into a finished product through a flat vulcanizing machine according to the pressure, temperature and time required by the process, namely the energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveying belt.
Compared with the prior art, the invention has the following beneficial effects:
1. the wear resistance is good, and the service life of the conveying belt can be prolonged;
2. The elasticity is good, and the impact resistance is strong;
3. the flame retardant and antistatic performance is excellent;
4. the halogen-containing main material and the halogen-and antimony-containing flame retardant are not used, the ignition amount of the flame retardant tape is small when the flame retardant tape is ignited, and the smoke does not contain halogen, so that secondary disasters such as personnel poisoning, equipment corrosion and environmental pollution are avoided;
5. the rolling resistance is low, and the energy consumption in the use process can be reduced.
Detailed Description
The following examples are given to aid in the understanding of the invention, but are not intended to limit the scope of the invention.
Example 1
The embodiment provides an energy-saving and wear-resistant low-smoke zero-halogen fabric laminated conveyor belt which comprises a fabric canvas framework layer, a canvas adhesive layer, an upper covering adhesive layer and a lower covering adhesive layer.
The upper covering glue layer and the lower covering glue layer consist of the following components in percentage by weight:
50 parts of tin coupling solution polymerized styrene-butadiene rubber (SSBR-SL 552), 30 parts of Natural Rubber (NR), 20 parts of butadiene rubber (BR 9000), 4 parts of zinc oxide, 3 parts of stearic acid, 1.5 parts of sulfur, 1 part of promoter CZ, 1 part of promoter TMTD, 1 part of anti-aging agent RD, 01 parts of anti-aging agent 40201, 1 part of protective wax, 0.5 part of anti-scorching agent CTP, EB 12220 parts of Texas carbon black, 4 parts of conductive carbon black, 25 parts of high-dispersion white carbon black, 4 parts of wear-resisting agent (HS-580), 3 parts of adhesive (AS-88), 6 parts of C5 petroleum resin, 6 parts of aramid pulp, 2 parts of silane coupling agent (Si69), 10 parts of diphenyl isooctyl phosphate (DPOP), 10 parts of microencapsulated red phosphorus, 30 parts of zinc borate ammonium polyphosphate (APP) and 10 parts of melamine phosphate (MPP).
The canvas adhesive layer rubber material is a low-smoke halogen-free flame-retardant adhesive rubber composite material and comprises the following components in percentage by weight:
80 parts of styrene butadiene rubber (SBR 1500), 20 parts of Natural Rubber (NR), 4 parts of sulfur, 6 parts of zinc oxide, 1.5 parts of accelerator CZ, 0.7 part of accelerator M, 2 parts of stearic acid, 2 parts of anti-aging agent BEL, 3 parts of adhesive AS-883, 12 parts of white carbon black, 16 parts of microcapsule red phosphorus, 20 parts of zinc borate, 14 parts of ammonium polyphosphate (APP), 16 parts of melamine phosphate (MPP), 66015 parts of carbon black and 3 parts of silane coupling agent (Si 69).
The fabric canvas framework layer is formed by laminating four layers of NN500 flame-retardant gum dipped canvas after rubberizing.
The thickness of the upper covering glue layer is 6mm, and the thickness of the lower covering glue layer is 4 mm.
The embodiment provides a manufacturing method of an energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveyor belt, which comprises the following steps:
(1) preparing an upper covering layer sizing material and a lower covering layer sizing material:
the sizing materials of the upper and lower covering glue layers comprise the following components in percentage by weight:
50 parts of tin coupling solution polymerized styrene-butadiene rubber (SSBR-SL 552), 30 parts of Natural Rubber (NR), 20 parts of butadiene rubber (BR 9000), 4 parts of zinc oxide, 3 parts of stearic acid, 1.5 parts of sulfur, 1 part of promoter CZ, 1 part of promoter TMTD, 1 part of anti-aging agent RD, 01 parts of anti-aging agent 40201, 1 part of protective wax, 0.5 part of anti-scorching agent CTP, EB 12220 parts of Texas carbon black, 4 parts of conductive carbon black, 25 parts of high-dispersion white carbon black, 4 parts of wear-resisting agent (HS-580), 3 parts of adhesive (AS-88), 6 parts of C5 petroleum resin, 6 parts of aramid pulp, 2 parts of silane coupling agent (Si69), 10 parts of diphenyl isooctyl phosphate (DPOP), 10 parts of microencapsulated red phosphorus, 30 parts of zinc borate ammonium polyphosphate (APP) and 10 parts of melamine phosphate (MPP).
Preparing the mixture into three-stage rubber compound:
1) plasticating natural rubber:
plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) first-stage mixing:
firstly, plasticated natural rubber, styrene butadiene rubber and butadiene rubber are put into an internal mixer for mixing for 40-50 seconds, zinc oxide, an anti-aging agent, an anti-scorching agent, carbon black, conductive carbon black, stearic acid, protective wax, an anti-wear agent, petroleum resin and a halogen-free flame retardant plasticizer are put into the internal mixer, the mixing is continued for 150-180 seconds, the rubber discharging temperature is 140-150 ℃, the mixture is discharged and cooled to prepare a section of mixed rubber, and the mixed rubber is used after being placed for 8 hours;
3) modifying the flame retardant:
adding white carbon black, aramid fiber pulp and a halogen-free flame retardant into a kneader, heating and stirring at the stirring speed of 375-400 r/min to 40-60 ℃, spraying a silane coupling agent, continuing heating and stirring, stirring at the temperature of 115-125 ℃ for 10-15 min to prepare a surface modified flame retardant, and cooling for use;
4) and (3) second-stage mixing:
adding the first-stage rubber compound and the surface modification fire retardant into an internal mixer for mixing, wherein the rotor speed of the internal mixer is 50 r/min, the mixing time is 150-;
5) three-stage mixing:
an internal mixer is used in the third-stage mixing, the rotor speed of the internal mixer is 20 r/min, the second-stage rubber compound, sulfur, an accelerant and an adhesive are put into the internal mixer for mixing for 100-120 seconds, the rubber discharge temperature is 90-100 ℃, and the sheet is taken out and cooled to prepare the third-stage rubber compound;
(2) sizing material for preparing canvas rubberizing layer
The canvas rubberizing layer rubber material comprises the following components in percentage by weight:
80 parts of styrene butadiene rubber (SBR 1500), 20 parts of Natural Rubber (NR), 4 parts of sulfur, 6 parts of zinc oxide, 1.5 parts of accelerator CZ, 0.7 part of accelerator M, 2 parts of stearic acid, 2 parts of anti-aging agent BEL, 3 parts of adhesive AS-883, 12 parts of white carbon black, 16 parts of microcapsule red phosphorus, 20 parts of zinc borate, 14 parts of ammonium polyphosphate (APP), 16 parts of melamine phosphate (MPP), 66015 parts of carbon black and 3 parts of silane coupling agent (Si 69).
Preparing the mixture into three-stage rubber compound:
1) plasticating natural rubber
Plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) first-stage mixing:
firstly, three sections of plasticated natural rubber and styrene butadiene rubber are put into an internal mixer for mixing for 40-50 seconds; adding zinc oxide, stearic acid, an anti-aging agent and carbon black, continuously mixing for 180 seconds at the temperature of 140 ℃ for rubber discharge and 150 ℃, discharging, cooling to prepare a section of rubber compound, and standing for 8 hours for use;
3) modifying the flame retardant:
adding white carbon black, microcapsule red phosphorus, zinc borate, ammonium polyphosphate and melamine phosphate into a kneader, heating and stirring at the stirring speed of 375-400 r/min, heating to 40-60 ℃, spraying a silane coupling agent, continuing heating and stirring, stirring at the temperature of 115-125 ℃ for 10-15 min to prepare a surface modified flame retardant, and cooling for use;
4) and (3) second-stage mixing:
adding the first-stage rubber compound and the surface modification fire retardant into an internal mixer for mixing, wherein the rotor speed of the internal mixer is 50 r/min, the mixing time is 150-;
5) three-stage mixing:
an internal mixer is used in the three-stage mixing, the rotor speed of the internal mixer is 20 r/min, the first-stage mixed rubber, the cobalt boracylate, the sulfur, the accelerant and the adhesive are put into the internal mixer for mixing for 100 and 120 seconds, the rubber discharge temperature is 90-100 ℃, the sheet is taken out and cooled, and the three-stage mixed rubber is prepared and is used after being placed for 8 hours;
(3) rubberizing a canvas:
hot-pasting the canvas rubberizing layer rubber material on the upper surface and the lower surface of the rubberized canvas according to the thickness required by the process by a cold feed extruder and a four-roller calender;
(4) rolling out a sheet:
preparing upper and lower cover layer rubber sheets from the upper and lower cover layer rubber materials according to the thickness required by the process by using a cold feed extruder and a four-roll calender;
(5) forming a strip blank:
firstly, adhering rubberized canvas together according to the number of layers required by the process by an automatic tension forming machine, and then adhering the rubberized canvas to upper and lower covering layer films to prepare a belt blank;
(6) plate vulcanization:
and vulcanizing the belt blank into a finished product through a flat vulcanizing machine according to the pressure, temperature and time required by the process, namely the energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveying belt of the embodiment.
Example 2
The embodiment provides an energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveyor belt. Comprises a fabric canvas framework layer, a canvas adhesive layer, an upper covering adhesive layer and a lower covering adhesive layer.
The upper and lower covering glue layers are composed of the following components in percentage by weight:
50 parts of tin coupling solution polymerized styrene-butadiene rubber (SSBR-SL 552), 25 parts of Natural Rubber (NR), 25 parts of butadiene rubber (BR 9000), 6 parts of zinc oxide, 2 parts of stearic acid, 1.8 parts of sulfur, 0.8 part of promoter CZ, 0.8 part of promoter TMTD, 1.5 parts of anti-aging agent RD, 40201 parts of anti-aging agent, 1.5 parts of protective wax, 0.8 part of anti-scorching agent CTP, 12322 parts of German Gusa carbon black EB, 4 parts of conductive carbon black, 23 parts of high-dispersion white carbon black, 5 parts of wear-resisting agent (HS-580), 3 parts of adhesive (AS-88), 5 parts of C5 petroleum resin, 5 parts of aramid pulp, 3 parts of silane coupling agent (Si69), 13 parts of tricresyl phosphate (TCP), 15 parts of microcapsule red phosphorus, 20 parts of zinc borate, 20 parts of ammonium polyphosphate (APP) and 10 parts of melamine phosphate (MPP).
The canvas adhesive layer rubber material is a low-smoke halogen-free flame-retardant adhesive rubber composite material and comprises the following components in percentage by weight:
80 parts of styrene butadiene rubber (SBR 1500), 20 parts of Natural Rubber (NR), 4 parts of sulfur, 6 parts of zinc oxide, 1.5 parts of accelerator CZ, 0.7 part of accelerator M, 2 parts of stearic acid, 2 parts of anti-aging agent BEL, 3 parts of adhesive AS-883, 12 parts of white carbon black, 14 parts of microcapsule red phosphorus, 25 parts of zinc borate, 16 parts of ammonium polyphosphate (APP), 12 parts of melamine phosphate (MPP), 66015 parts of carbon black, and 3 parts of silane coupling agent (Si69)
The fabric canvas framework layer is formed by laminating five layers of EP300 flame-retardant gum dipped canvas after rubberizing.
The thickness of the upper covering glue layer is 5mm, and the thickness of the lower covering glue layer is 3 mm.
The embodiment provides a manufacturing method of an energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveyor belt, which comprises the following steps:
(1) preparing an upper covering layer sizing material and a lower covering layer sizing material:
the sizing materials of the upper and lower covering glue layers comprise the following components in percentage by weight:
50 parts of tin coupling solution polymerized styrene-butadiene rubber (SSBR-SL 552), 25 parts of Natural Rubber (NR), 25 parts of butadiene rubber (BR 9000), 6 parts of zinc oxide, 2 parts of stearic acid, 1.8 parts of sulfur, 0.8 part of promoter CZ, 0.8 part of promoter TMTD, 1.5 parts of anti-aging agent RD, 40201 parts of anti-aging agent, 1.5 parts of protective wax, 0.8 part of anti-scorching agent CTP, 12322 parts of German Gusa carbon black EB, 4 parts of conductive carbon black, 23 parts of high-dispersion white carbon black, 5 parts of wear-resisting agent (HS-580), 3 parts of adhesive (AS-88), 5 parts of C5 petroleum resin, 5 parts of aramid pulp, 3 parts of silane coupling agent (Si69), 13 parts of tricresyl phosphate (TCP), 15 parts of microcapsule red phosphorus, 20 parts of zinc borate, 20 parts of ammonium polyphosphate (APP) and 10 parts of melamine phosphate (MPP).
Preparing the mixture into three-stage rubber compound:
1) plasticating natural rubber:
plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) first-stage mixing:
firstly, plasticated natural rubber, styrene butadiene rubber and butadiene rubber are put into an internal mixer for mixing for 40-50 seconds, zinc oxide, an anti-aging agent, an anti-scorching agent, carbon black, conductive carbon black, stearic acid, protective wax, an anti-wear agent, petroleum resin and a halogen-free flame retardant plasticizer are put into the internal mixer, the mixing is continued for 150-180 seconds, the rubber discharging temperature is 140-150 ℃, the mixture is discharged and cooled to prepare a section of mixed rubber, and the mixed rubber is used after being placed for 8 hours;
3) modifying the flame retardant:
adding white carbon black, aramid fiber pulp and a halogen-free flame retardant into a kneader, heating and stirring at the stirring speed of 375-400 r/min to 40-60 ℃, spraying a silane coupling agent, continuing heating and stirring, stirring at the temperature of 115-125 ℃ for 10-15 min to prepare a surface modified flame retardant, and cooling for use;
4) and (3) second-stage mixing:
adding the first-stage rubber compound and the surface modification fire retardant into an internal mixer for mixing, wherein the rotor speed of the internal mixer is 50 r/min, the mixing time is 150-;
5) three-stage mixing:
an internal mixer is used in the third-stage mixing, the rotor speed of the internal mixer is 20 r/min, the second-stage rubber compound, sulfur, an accelerant and an adhesive are put into the internal mixer for mixing for 100-120 seconds, the rubber discharge temperature is 90-100 ℃, and the sheet is taken out and cooled to prepare the third-stage rubber compound;
(2) preparing a canvas rubberizing layer sizing material;
the canvas rubberizing layer rubber material comprises the following components in percentage by weight:
80 parts of styrene butadiene rubber (SBR 1500), 20 parts of Natural Rubber (NR), 4 parts of sulfur, 6 parts of zinc oxide, 1.5 parts of accelerator CZ, 0.7 part of accelerator M, 2 parts of stearic acid, 2 parts of anti-aging agent BEL, 3 parts of adhesive AS-883, 12 parts of white carbon black, 14 parts of microcapsule red phosphorus, 25 parts of zinc borate, 16 parts of ammonium polyphosphate (APP), 12 parts of melamine phosphate (MPP), 66015 parts of carbon black and 3 parts of silane coupling agent (Si 69);
preparing the mixture into three-stage rubber compound:
1) plasticating natural rubber
Plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) first-stage mixing:
firstly, three sections of plasticated natural rubber and styrene butadiene rubber are put into an internal mixer for mixing for 40-50 seconds; adding zinc oxide, stearic acid, an anti-aging agent and carbon black, continuously mixing for 180 seconds at the temperature of 140 ℃ for rubber discharge and 150 ℃, discharging, cooling to prepare a section of rubber compound, and standing for 8 hours for use;
3) modifying the flame retardant:
adding white carbon black, microcapsule red phosphorus, zinc borate, ammonium polyphosphate and melamine phosphate into a kneader, heating and stirring at the stirring speed of 375-400 r/min, heating to 40-60 ℃, spraying a silane coupling agent, continuing heating and stirring, stirring at the temperature of 115-125 ℃ for 10-15 min to prepare a surface modified flame retardant, and cooling for use;
4) and (3) second-stage mixing:
adding the first-stage rubber compound and the surface modification fire retardant into an internal mixer for mixing, wherein the rotor speed of the internal mixer is 50 r/min, the mixing time is 150-;
5) three-stage mixing:
an internal mixer is used in the three-stage mixing, the rotor speed of the internal mixer is 20 r/min, the first-stage mixed rubber, the cobalt boracylate, the sulfur, the accelerant and the adhesive are put into the internal mixer for mixing for 100 and 120 seconds, the rubber discharge temperature is 90-100 ℃, the sheet is taken out and cooled, and the three-stage mixed rubber is prepared and is used after being placed for 8 hours;
(3) rubberizing a canvas:
hot-pasting the canvas rubberizing layer rubber material on the upper surface and the lower surface of the rubberized canvas according to the thickness required by the process by a cold feed extruder and a four-roller calender;
(4) rolling out a sheet:
preparing upper and lower cover layer rubber sheets from the upper and lower cover layer rubber materials according to the thickness required by the process by using a cold feed extruder and a four-roll calender;
(5) forming a strip blank:
firstly, adhering rubberized canvas together according to the number of layers required by the process by an automatic tension forming machine, and then adhering the rubberized canvas to upper and lower covering layer films to prepare a belt blank;
(6) plate vulcanization:
and vulcanizing the belt blank into a finished product through a flat vulcanizing machine according to the pressure, temperature and time required by the process, namely the energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveying belt of the embodiment.
Example 3
The embodiment provides an energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveyor belt. Comprises a fabric canvas framework layer, a canvas adhesive layer, an upper covering adhesive layer and a lower covering adhesive layer.
The upper and lower covering glue layers are composed of the following components in percentage by weight:
50 parts of tin coupling solution polymerized styrene-butadiene rubber (SSBR-SL 552), 30 parts of Natural Rubber (NR), 20 parts of butadiene rubber (BR 9000), 5 parts of zinc oxide, 1 part of stearic acid, 2 parts of sulfur, 0.5 part of promoter CZ, 1 part of promoter TMTD, 2 parts of antioxidant RD, 40201 parts of antioxidant, 1 part of protective wax, 1 part of antiscorching agent CTP, and cabot carbon black CRXTM143625 parts, 4 parts of conductive carbon black, 20 parts of high-dispersion white carbon black, 6 parts of a wear-resisting agent (HS-580), 3 parts of an adhesive (AS-88), 4 parts of C5 petroleum resin, 4 parts of aramid pulp, 4 parts of a silane coupling agent (Si69), 16 parts of trioctyl phosphate (TOP), 10 parts of microcapsule red phosphorus, 20 parts of zinc borate, 15 parts of ammonium polyphosphate (APP) and 15 parts of melamine phosphate (MPP).
The canvas adhesive layer rubber material is a low-smoke halogen-free flame-retardant adhesive rubber composite material and comprises the following components in percentage by weight:
80 parts of styrene butadiene rubber (SBR 1500), 20 parts of Natural Rubber (NR), 4 parts of sulfur, 6 parts of zinc oxide, 1.5 parts of accelerator CZ, 0.7 part of accelerator M, 2 parts of stearic acid, 2 parts of anti-aging agent BEL, 3 parts of adhesive AS-883, 12 parts of white carbon black, 12 parts of microcapsule red phosphorus, 30 parts of zinc borate, 12 parts of ammonium polyphosphate (APP), 14 parts of melamine phosphate (MPP), 66015 parts of carbon black and 3 parts of silane coupling agent (Si 69);
the fabric canvas framework layer is formed by laminating six layers of EP200 flame-retardant gum dipped canvas after rubberizing.
The thickness of the upper covering glue layer is 4.5mm, and the thickness of the lower covering glue layer is 2 mm.
The embodiment provides a manufacturing method of an energy-saving wear-resistant low-smoke halogen-free fabric flame-retardant conveyor belt, which comprises the following steps:
(1) preparing an upper covering layer sizing material and a lower covering layer sizing material:
the sizing materials of the upper and lower covering glue layers comprise the following components in percentage by weight:
50 parts of tin coupling solution polymerized styrene-butadiene rubber (SSBR-SL 552), 30 parts of Natural Rubber (NR), 20 parts of butadiene rubber (BR 9000), 5 parts of zinc oxide, 1 part of stearic acid, 2 parts of sulfur, 0.5 part of promoter CZ, 1 part of promoter TMTD, 2 parts of antioxidant RD, 40201 parts of antioxidant, 1 part of protective wax, 1 part of antiscorching agent CTP, and cabot carbon black CRXTM143625 parts, 4 parts of conductive carbon black, 20 parts of high-dispersion white carbon black, 6 parts of a wear-resisting agent (HS-580), 3 parts of an adhesive (AS-88), 4 parts of C5 petroleum resin, 4 parts of aramid pulp, 4 parts of a silane coupling agent (Si69), 16 parts of trioctyl phosphate (TOP), 10 parts of microcapsule red phosphorus, 20 parts of zinc borate, 15 parts of ammonium polyphosphate (APP) and 15 parts of melamine phosphate (MPP).
Preparing the mixture into three-stage rubber compound:
1) plasticating natural rubber:
plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) first-stage mixing:
firstly, plasticated natural rubber, styrene butadiene rubber and butadiene rubber are put into an internal mixer for mixing for 40-50 seconds, zinc oxide, an anti-aging agent, an anti-scorching agent, carbon black, conductive carbon black, stearic acid, protective wax, an anti-wear agent, petroleum resin and a halogen-free flame retardant plasticizer are put into the internal mixer, the mixing is continued for 150-180 seconds, the rubber discharging temperature is 140-150 ℃, the mixture is discharged and cooled to prepare a section of mixed rubber, and the mixed rubber is used after being placed for 8 hours;
3) modifying the flame retardant:
adding white carbon black, aramid fiber pulp and a halogen-free flame retardant into a kneader, heating and stirring at the stirring speed of 375-400 r/min to 40-60 ℃, spraying a silane coupling agent, continuing heating and stirring, stirring at the temperature of 115-125 ℃ for 10-15 min to prepare a surface modified flame retardant, and cooling for use;
4) and (3) second-stage mixing:
adding the first-stage rubber compound and the surface modification fire retardant into an internal mixer for mixing, wherein the rotor speed of the internal mixer is 50 r/min, the mixing time is 150-;
5) three-stage mixing:
an internal mixer is used in the third-stage mixing, the rotor speed of the internal mixer is 20 r/min, the second-stage rubber compound, sulfur, an accelerant and an adhesive are put into the internal mixer for mixing for 100-120 seconds, the rubber discharge temperature is 90-100 ℃, and the sheet is taken out and cooled to prepare the third-stage rubber compound;
(2) preparing a canvas rubberizing layer sizing material;
the canvas rubberizing layer rubber material comprises the following components in percentage by weight:
80 parts of styrene butadiene rubber (SBR 1500), 20 parts of Natural Rubber (NR), 4 parts of sulfur, 6 parts of zinc oxide, 1.5 parts of accelerator CZ, 0.7 part of accelerator M, 2 parts of stearic acid, 2 parts of anti-aging agent BEL, 3 parts of adhesive AS-883, 12 parts of white carbon black, 12 parts of microcapsule red phosphorus, 30 parts of zinc borate, 12 parts of ammonium polyphosphate (APP), 14 parts of melamine phosphate (MPP), 66015 parts of carbon black and 3 parts of silane coupling agent (Si 69);
preparing the mixture into three-stage rubber compound:
1) plasticating natural rubber
Plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) first-stage mixing:
firstly, three sections of plasticated natural rubber and styrene butadiene rubber are put into an internal mixer for mixing for 40-50 seconds; adding zinc oxide, stearic acid, an anti-aging agent and carbon black, continuously mixing for 180 seconds at the temperature of 140 ℃ for rubber discharge and 150 ℃, discharging, cooling to prepare a section of rubber compound, and standing for 8 hours for use;
3) modifying the flame retardant:
adding white carbon black, microcapsule red phosphorus, zinc borate, ammonium polyphosphate and melamine phosphate into a kneader, heating and stirring at the stirring speed of 375-400 r/min, heating to 40-60 ℃, spraying a silane coupling agent, continuing heating and stirring, stirring at the temperature of 115-125 ℃ for 10-15 min to prepare a surface modified flame retardant, and cooling for use;
4) and (3) second-stage mixing:
adding the first-stage rubber compound and the surface modification fire retardant into an internal mixer for mixing, wherein the rotor speed of the internal mixer is 50 r/min, the mixing time is 150-;
5) three-stage mixing:
an internal mixer is used in the three-stage mixing, the rotor speed of the internal mixer is 20 r/min, the first-stage mixed rubber, the cobalt boracylate, the sulfur, the accelerant and the adhesive are put into the internal mixer for mixing for 100 and 120 seconds, the rubber discharge temperature is 90-100 ℃, the sheet is taken out and cooled, and the three-stage mixed rubber is prepared and is used after being placed for 8 hours;
(3) rubberizing a canvas:
hot-pasting the canvas rubberizing layer rubber material on the upper surface and the lower surface of the rubberized canvas according to the thickness required by the process by a cold feed extruder and a four-roller calender;
(4) rolling out a sheet:
preparing upper and lower cover layer rubber sheets from the upper and lower cover layer rubber materials according to the thickness required by the process by using a cold feed extruder and a four-roll calender;
(5) forming a strip blank:
firstly, adhering rubberized canvas together according to the number of layers required by the process by an automatic tension forming machine, and then adhering the rubberized canvas to upper and lower covering layer films to prepare a belt blank;
(6) plate vulcanization:
and vulcanizing the belt blank into a finished product through a flat vulcanizing machine according to the pressure, temperature and time required by the process, namely the energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveying belt of the embodiment.
The test data for the above examples are shown in the following table:
Figure DEST_PATH_IMAGE001
。

Claims (5)

1. the utility model provides an energy-conserving wear-resisting low smoke and zero halogen fabric stromatolite fire-retardant conveyer belt, includes fabric canvas casing ply, canvas rubberizing layer, covers the glue film on, covers the glue film down, its characterized in that: the upper covering glue layer and the lower covering glue layer consist of the following components in percentage by weight:
the anti-corrosion coating comprises, by weight, SSBR-SL 55250 parts of tin coupling solution polymerized styrene-butadiene rubber, NR 20-30 parts of natural rubber, BR 900020-30 parts of butadiene rubber, 4-6 parts of zinc oxide, 1-3 parts of stearic acid, 1.5-2.0 parts of sulfur, 1.5-2.0 parts of an accelerator, 2-3 parts of an anti-aging agent, 1-2 parts of protective wax, 0.5-1 part of a scorch retarder CTP, 20-25 parts of low rolling resistance carbon black, 4 parts of conductive carbon black, 20-25 parts of high dispersion white carbon black, 20-6 parts of a wear-resistant agent HSR-5804-6 parts, AS-883 parts of an adhesive, 4-6 parts of C5 petroleum resin, 4-6 parts of aramid pulp, 4-4 parts of a silane coupling agent Si 692-4 parts, 10-16 parts of a halogen-free flame retardant plasticizer and 60;
the promoter is a combination of a promoter CZ and a promoter TMTD, and the anti-aging agent is an anti-aging agent RD and an anti-aging agent 4020The low rolling resistance carbon black is selected from Degussa EB122, EB123 or cabot CRXTM1436, the halogen-free flame-retardant plasticizer is any one of diphenyl isooctyl phosphate DPOP, tricresyl phosphate TCP and trioctyl phosphate TOP, and the halogen-free flame retardant is a combination of microcapsule red phosphorus, zinc borate, ammonium polyphosphate APP and melamine phosphate MPP.
2. The energy-saving wear-resistant low-smoke zero-halogen fabric laminated conveyor belt according to claim 1, characterized in that the canvas adhesive layer rubber compound comprises the following components in percentage by weight:
styrene butadiene rubber SBR 150080 parts, natural rubber NR 20 parts, sulfur 4 parts, zinc oxide 6 parts, accelerator CZ 1.5 parts, accelerator M0.7 parts, stearic acid 2 parts, anti-aging agent BEL 2 parts, adhesive AS-883 parts, white carbon black 12 parts, microcapsule red phosphorus 12-16 parts, zinc borate 20-30 parts, ammonium polyphosphate APP 12-16 parts, melamine phosphate MPP 12-16 parts, carbon black N66015 parts, and silane coupling agent Si 693 parts.
3. The energy-saving wear-resistant low-smoke zero-halogen fabric laminated flame-retardant conveyor belt as claimed in claim 1, wherein the fabric canvas frame layer is formed by laminating a plurality of layers of rubberized flame-retardant gummed canvas, and the frame material can be selected from nylon flame-retardant gummed canvas NN100-500 or polyester flame-retardant gummed canvas EP 100-500.
4. The energy-saving wear-resistant low-smoke zero-halogen fabric laminated flame-retardant conveyor belt according to claim 1, characterized in that the thickness of the upper covering glue layer is 3-8mm, and the thickness of the lower covering glue layer is 1.5-4 mm.
5. The manufacturing method of the energy-saving wear-resistant low-smoke zero-halogen fabric laminated flame-retardant conveyor belt according to claim 1 is characterized by comprising the following steps of:
(1) preparing an upper covering layer sizing material and a lower covering layer sizing material:
the sizing materials of the upper and lower covering glue layers comprise the following components in percentage by weight:
the anti-corrosion coating comprises, by weight, SSBR-SL 55250 parts of tin coupling solution polymerized styrene-butadiene rubber, NR 20-30 parts of natural rubber, BR 900020-30 parts of butadiene rubber, 4-6 parts of zinc oxide, 1-3 parts of stearic acid, 1.5-2.0 parts of sulfur, 1.5-2.0 parts of an accelerator, 2-3 parts of an anti-aging agent, 1-2 parts of protective wax, 0.5-1 part of a scorch retarder CTP, 20-25 parts of low rolling resistance carbon black, 4 parts of conductive carbon black, 20-25 parts of high dispersion white carbon black, 20-6 parts of a wear-resistant agent HSR-5804-6 parts, AS-883 parts of an adhesive, 4-6 parts of C5 petroleum resin, 4-6 parts of aramid pulp, 4-4 parts of a silane coupling agent Si 692-4 parts, 10-16 parts of a halogen-free flame retardant plasticizer and 60;
preparing the mixture into three-stage rubber compound:
1) plasticating natural rubber:
plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) first-stage mixing:
firstly, plasticated natural rubber, styrene butadiene rubber and butadiene rubber are put into an internal mixer for mixing for 40-50 seconds, zinc oxide, an anti-aging agent, an anti-scorching agent, carbon black, conductive carbon black, stearic acid, protective wax, an anti-wear agent, petroleum resin and a halogen-free flame retardant plasticizer are put into the internal mixer, the mixing is continued for 150-180 seconds, the rubber discharging temperature is 140-150 ℃, the mixture is discharged and cooled to prepare a section of mixed rubber, and the mixed rubber is used after being placed for 8 hours;
3) modifying the flame retardant:
adding white carbon black, aramid fiber pulp and a halogen-free flame retardant into a kneader, heating and stirring at the stirring speed of 375-400 r/min to 40-60 ℃, spraying a silane coupling agent, continuing heating and stirring, stirring at the temperature of 115-125 ℃ for 10-15 min to prepare a surface modified flame retardant, and cooling for use;
4) and (3) second-stage mixing:
adding the first-stage rubber compound and the surface modification fire retardant into an internal mixer for mixing, wherein the rotor speed of the internal mixer is 50 r/min, the mixing time is 150-;
5) three-stage mixing:
the three-stage mixing uses an internal mixer, and the rotor speed of the internal mixer is 20 r/min; the two-section rubber compound, sulfur, an accelerant and an adhesive are put into an internal mixer for mixing for 100-120 seconds, the rubber discharge temperature is 90-100 ℃, and the mixture is taken out and cooled to prepare three-section rubber compound;
(2) preparing a canvas rubberizing layer sizing material;
the canvas adhesive layer rubber material is a low-smoke halogen-free flame-retardant adhesive rubber composite material and comprises the following components in percentage by weight:
styrene butadiene rubber SBR 150080 parts, natural rubber NR 20 parts, sulfur 4 parts, zinc oxide 6 parts, accelerator CZ 1.5 parts, accelerator M0.7 parts, stearic acid 2 parts, anti-aging agent BEL 2 parts, adhesive AS-883 parts, white carbon black 12 parts, microcapsule red phosphorus 12-16 parts, zinc borate 20-30 parts, ammonium polyphosphate APP 12-16 parts, melamine phosphate MPP 12-16 parts, carbon black N66015 parts, and silane coupling agent Si 693 parts;
preparing the mixture into three-stage rubber compound:
1) plasticating natural rubber
Plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) first-stage mixing:
firstly, three sections of plasticated natural rubber and styrene butadiene rubber are put into an internal mixer for mixing for 40-50 seconds; adding zinc oxide, stearic acid, an anti-aging agent and carbon black, continuously mixing for 180 seconds at the temperature of 140 ℃ for rubber discharge and 150 ℃, discharging, cooling to prepare a section of rubber compound, and standing for 8 hours for use;
3) modifying the flame retardant:
adding white carbon black, microcapsule red phosphorus, zinc borate, ammonium polyphosphate and melamine phosphate into a kneader, heating and stirring at the stirring speed of 375-400 r/min, heating to 40-60 ℃, spraying a silane coupling agent, continuing heating and stirring, stirring at the temperature of 115-125 ℃ for 10-15 min to prepare a surface modified flame retardant, and cooling for use;
4) and (3) second-stage mixing:
adding the first-stage rubber compound and the surface modification fire retardant into an internal mixer for mixing, wherein the rotor speed of the internal mixer is 50 r/min, the mixing time is 150-;
5) three-stage mixing:
an internal mixer is used in the three-stage mixing, the rotor speed of the internal mixer is 20 r/min, the first-stage mixed rubber, the cobalt boracylate, the sulfur, the accelerant and the adhesive are put into the internal mixer for mixing for 100 and 120 seconds, the rubber discharge temperature is 90-100 ℃, the sheet is taken out and cooled, and the three-stage mixed rubber is prepared and is used after being placed for 8 hours;
(3) rubberizing the canvas;
(4) rolling out the sheet;
(5) molding a strip blank;
(6) and (4) vulcanizing the flat plate.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112225965A (en) * 2020-10-30 2021-01-15 山东浩瀚之邦橡塑有限公司 Laminated flame-retardant conveying belt and preparation method thereof
CN112745540A (en) * 2020-12-21 2021-05-04 青岛华武橡塑股份有限公司 Static conductive crawler belt and preparation method thereof
CN115806782A (en) * 2022-12-26 2023-03-17 宣城博源橡塑有限公司 Wear-resistant rubber lining board and production process thereof
CN116374492A (en) * 2023-04-13 2023-07-04 浙江双箭橡胶股份有限公司 Aramid fiber rope conveying belt and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105713264A (en) * 2016-05-09 2016-06-29 郭秀珍 Wear-resistant glove for electric power
CN109054123A (en) * 2018-09-26 2018-12-21 兖矿集团唐村实业有限公司 Fire retarding conveying band and preparation method thereof
CN110283367A (en) * 2019-07-16 2019-09-27 无锡宝通科技股份有限公司 Super abrasive conveyer belt coating rubber and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105713264A (en) * 2016-05-09 2016-06-29 郭秀珍 Wear-resistant glove for electric power
CN109054123A (en) * 2018-09-26 2018-12-21 兖矿集团唐村实业有限公司 Fire retarding conveying band and preparation method thereof
CN110283367A (en) * 2019-07-16 2019-09-27 无锡宝通科技股份有限公司 Super abrasive conveyer belt coating rubber and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112225965A (en) * 2020-10-30 2021-01-15 山东浩瀚之邦橡塑有限公司 Laminated flame-retardant conveying belt and preparation method thereof
CN112745540A (en) * 2020-12-21 2021-05-04 青岛华武橡塑股份有限公司 Static conductive crawler belt and preparation method thereof
CN115806782A (en) * 2022-12-26 2023-03-17 宣城博源橡塑有限公司 Wear-resistant rubber lining board and production process thereof
CN116374492A (en) * 2023-04-13 2023-07-04 浙江双箭橡胶股份有限公司 Aramid fiber rope conveying belt and preparation method thereof
CN116374492B (en) * 2023-04-13 2023-09-29 浙江双箭橡胶股份有限公司 Aramid fiber rope conveying belt and preparation method thereof

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