CN102604174B - White carbon black reinforced high-wear-resistance covering rubber and preparation method thereof - Google Patents
White carbon black reinforced high-wear-resistance covering rubber and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a white carbon black reinforced high-wear-resistance covering rubber and a preparation method thereof, and the white carbon black reinforced high-wear-resistance covering rubber adopts the following process steps: adding emulsion styrene-butadiene rubber, white carbon black, carbon black N220, microcrystalline wax, a dispersing agent, coumarone resin, aromatic oil, a silane coupling agent Si69, an anti-aging agent RD, an anti-aging agent 6PPD, nano zinc oxide and stearic acid into an internal mixer, and mixing for a first time; adding an accelerator NS, an accelerator TMTD and sulfur, and carrying out two-stage mixing to obtain a rubber compound; remilling the rubber compound on an open mill, rolling and placing after remilling to obtain remixed rubber; calendering the refined rubber into rubber sheets of covering rubber; laminating the covering rubber sheet, the belt core of the conveying belt and the edge rubber to form a belt blank; and vulcanizing the belt blank on a vulcanizing machine to obtain the high-wear-resistance covering rubber. The covering rubber is mainly reinforced by white carbon black, and has excellent wear resistance and tear resistance; the covering rubber can obviously reduce rolling resistance and energy consumption.
Description
Technical field
The present invention relates to high abrasion rubber cover of a kind of white carbon black reinforcement and preparation method thereof, especially a kind of be used to the fabric core conveyor belt that has the high abrasion anti tear to require or the rubber cover of steel cable core conveying belt.
Background technology
The conveying of the heavy material of industries such as metallurgy, building materials, electric power, chemical industry, harbour is impacted greatlyyer, and abrasiveness is bigger, tap density is bigger, working condition is harsh, and conveying belt is had very high requirement, thereby the wear resisting property of rubber cover and tear resistance have directly determined the life-span of conveying belt.
Tradition wear-resistant conveyor belt rubber cover all is supporting material with the carbon black.In order to improve wear resisting property, generally adopt particle diameter is less, specific surface area is very big medium super abrasion furnace black and super abrasion furnace black, when obtaining than high abrasion and tear resistance, increased hysteresis loss and the rolling resistance of rubber, make energy consumption increase.And deficient day by day along with carbon black starting material oil and gas resource, the development of the inorganic reinforcement packing material trend that is inevitable.White carbon black has good reinforcing effect as a kind of substitute of carbon black, and under the acting in conjunction of silane coupling agent, vulcanized rubber has good tensile strength, tear resistance and wear resisting property, and can effectively reduce rolling resistance, reduce energy consumption.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, high abrasion rubber cover of a kind of white carbon black reinforcement and preparation method thereof is provided, excellent abrasive energy and tear resistance are arranged.
According to technical scheme provided by the invention, a kind of high abrasion rubber cover of white carbon black reinforcement, the component ratio is counted by weight, comprises following component: 80～100 parts of emulsion polymerized styrene butadiene rubbers, 0～20 part of cis-1,4-polybutadiene rubber, 40～70 parts of white carbon blacks, 0～20 part of carbon black N220,1～4 part of Microcrystalline Wax, 1～4 part of anti-aging agent RD, 1～4 part of anti-aging agent 6PPD, 4～10 parts of coumarone indene resins, 4～10 parts of aromatic hydrocarbon oil, 1～4 part of dispersion agent, 5～10 parts of nano zine oxides, 1～5 part of stearic acid, 4～12 parts of silane coupling agent Si69,1～2 part of accelerator NS, 1～2 part of TM monex TD, 1～2 part of sulphur;
In Banbury mixer, add emulsion polymerized styrene butadiene rubber, cis-1,4-polybutadiene rubber, white carbon black, carbon black N220, Microcrystalline Wax, dispersion agent, coumarone indene resin, aromatic hydrocarbon oil, silane coupling agent Si69, anti-aging agent RD, anti-aging agent 6PPD, nano zine oxide, stearic acid, carry out one section mixing; Add accelerator NS, TM monex TD, sulphur again, carry out two-stage mixing and obtain rubber unvulcanizate; Rubber unvulcanizate is carried out freshening in mill, and clot is parked behind the freshening, obtains freshening glue; The freshening glue laminated is prolonged into the rubber cover film; With rubber cover film and conveying belt belt carcass and the synthetic made-up belt of limit sticker; Made-up belt is vulcanized at vulcanizer, obtain described high abrasion rubber cover.
Described dispersion agent is the soap of zinc or calcium.
Described silane coupling agent Si69 is (two-(the silica-based propyl group of γ-triethoxy) tetrasulfide).
The present invention also protects a kind of preparation method of high abrasion rubber cover of white carbon black reinforcement, and the component ratio is counted by weight, comprises following processing step:
(1) in Banbury mixer, carry out two sections mixing: one section mixing 80～100 parts of emulsion polymerized styrene butadiene rubbers, 0～20 part of cis-1,4-polybutadiene rubber of adding earlier, add 40～70 parts of white carbon blacks, 0～20 part of carbon black N220 then, add 1～4 part of Microcrystalline Wax, 1～4 part of dispersion agent, 4～10 parts of coumarone indene resins, 4～10 parts of aromatic hydrocarbon oil, 4～12 parts of silane coupling agent Si69 again, add 1～4 part of anti-aging agent RD, 1～4 part of anti-aging agent 6PPD, 5～10 parts of nano zine oxides, 1～5 part of stearic acid at last, one mixing refining period is 3～5 minutes, and the Banbury mixer temperature is 120～140 ℃; Add 1～2 part of accelerator NS, 1～2 part of TM monex TD, 1～2 part of sulphur during two-stage mixing, the temperature of two-stage mixing is 80～100 ℃, and the refining time is 3～5 minutes, obtains rubber unvulcanizate;
(2) go out film: the rubber unvulcanizate that step (1) is obtained carries out freshening in mill, and the freshening temperature is 60～80 ℃, and knit mark is 3～5 minutes; Carry out clot behind the freshening and park, storage period 0～10min obtains freshening glue; Freshening glue is dropped into rolling press, roll into the rubber cover film of required gauge thickness and width;
The rubber unvulcanizate that perhaps step (1) is obtained drops in the cold feed extruder, rolls into the rubber cover film of required gauge thickness and width;
(3) moulding: with rubber cover film and conveying belt belt carcass and the synthetic made-up belt of limit sticker;
(4) sulfuration: the made-up belt of forming is vulcanized at vulcanizing press, and curing temperature is 150～160 ℃, and curing time is 30～40 minutes, and pressure is 10～15MPa, obtains described high abrasion rubber cover.
Characteristics of the present invention:
(1) rubber cover of the present invention has excellent abrasive energy and tear resistance mainly with the white carbon black reinforcement;
(2) rubber cover of the present invention can significantly reduce rolling resistance, reduces energy consumption;
(3) the employed white carbon black of rubber cover of the present invention is compared medium super abrasion furnace black and super abrasion furnace black, and very big price advantage is arranged.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
The raw materials used market that is is bought in the embodiment of the invention.
Nano zine oxide used in the present invention (ZnO) particle diameter is between 1～100 nm, available from the emerging inferior novel material in Shandong limited-liability company.
Emulsion polymerized styrene butadiene rubber used in the present invention, cis-1,4-polybutadiene rubber are all available from Shandong QiLu Petrochemical Engineering Co., Ltd; Hard ester acid used in the present invention is available from oil chemistry industry (Shanghai) Co., Ltd. in good; Anti-aging agent RD used in the present invention and anti-aging agent 6PPD are available from Nanjing Chemical Industry Company; Carbon black N220 used in the present invention is available from the black cat carbon black limited-liability company in Jiangxi; Coumarone indene resin used in the present invention is available from the Yantai City luxuriant chemical industry of perseverance company limited; Accelerator NS used in the present invention and TM monex TD are available from Jiangsu Zhenjiang Zhenbang Chemical Co., Ltd.; White carbon black used in the present invention really becomes chemistry of silicones company limited available from the Wuxi; Silane coupling agent Si69 used in the present invention is (two-(the silica-based propyl group of γ-triethoxy) tetrasulfide), available from NanJing Shuguang Chemical Group Co., Ltd.; Microcrystalline Wax used in the present invention is available from the Nanyang wax Fine Chemical Works; Dispersion agent used in the present invention is the soap of zinc or calcium, available from Wuxi City guest king chemical plant; Sulphur used in the present invention flies to reach the chemical plant available from Jiangyin.
Embodiment one: a kind of preparation method of high abrasion rubber cover of white carbon black reinforcement, and the component ratio is counted by weight, comprises following processing step:
(1) in Banbury mixer, carry out two sections mixing: one section mixing 80 parts of emulsion polymerized styrene butadiene rubbers, 20 parts of cis-1,4-polybutadiene rubber of adding earlier, add 50 parts of white carbon blacks, 15 parts of carbon black N220 then, add 2 parts of Microcrystalline Waxes, 2 parts of dispersion agents, 6 parts of coumarone indene resins, 6 parts of aromatic hydrocarbon oil, 4 parts of silane coupling agent Si69 again, add 1.5 parts of anti-aging agent RDs, 1 part of anti-aging agent 6PPD, 5 parts of nano zine oxides, 2 parts of stearic acid at last, one mixing refining period is 4 minutes, and the Banbury mixer temperature is 140 ℃; Add 1.5 parts of accelerator NSs, 1 part of TM monex TD, 1.6 parts of sulphur during two-stage mixing, the temperature of two-stage mixing is 100 ℃, and the refining time is 3 minutes, obtains rubber unvulcanizate;
(2) go out film: the rubber unvulcanizate that step (1) is obtained carries out freshening in mill, and the freshening temperature is 60 ℃, and knit mark is 5 minutes; Carry out clot behind the freshening, obtain freshening glue; Freshening glue is dropped into rolling press, roll into the rubber cover film of required gauge thickness and width;
(3) moulding: with rubber cover film and conveying belt belt carcass and the synthetic made-up belt of limit sticker;
(4) sulfuration: the made-up belt of forming is vulcanized at vulcanizing press, and curing temperature is 150 ℃, and curing time is 35 minutes, and pressure is 12MPa, obtains described high abrasion rubber cover.
The every performance of the high heat-resisting cover glue that embodiment one prepares (inspecting standard GB/T20021-2005) as shown in table 1:
Table 1 high heat-resisting cover glue physicals check numbering: B4449
| Sizing material | Hardness/Shao Shi A | 100% tensile modulus/MPa | 300% tensile modulus/MPa | Tensile strength at yield/MPa | Tensile yield/% | Tension set/% | Abrasion/mm 3 |
| B4449 | 65 | 2.4 | 9.2 | 22.5 | 653 | 20 | 60 |
Embodiment two: a kind of preparation method of high abrasion rubber cover of white carbon black reinforcement, and the component ratio is counted by weight, comprises following processing step:
(1) in Banbury mixer, carry out two sections mixing: one section mixing adds earlier 100 parts of emulsion polymerized styrene butadiene rubbers, add 60 parts of white carbon blacks then, add 1.5 parts of Microcrystalline Waxes, 1.5 parts of dispersion agents, 4 parts of coumarone indene resins, 6 parts of aromatic hydrocarbon oil, 12 parts of silane coupling agent Si69 again, add 2 parts of anti-aging agent RDs, 1.5 parts of anti-aging agent 6PPD, 5 parts of nano zine oxides, 1 part of stearic acid at last, one mixing refining period is 5 minutes, and the Banbury mixer temperature is 120 ℃; Add 1.6 parts of accelerator NSs, 1.2 parts of TM monex TD, 1.8 parts of sulphur during two-stage mixing, the temperature of two-stage mixing is 90 ℃, and the refining time is 4 minutes, obtains rubber unvulcanizate;
(2) go out film: the rubber unvulcanizate that step (1) is obtained carries out freshening in mill, and the freshening temperature is 80 ℃, and knit mark is 3 minutes; Carry out clot behind the freshening and park, storage period 1min obtains freshening glue; Freshening glue is dropped into rolling press, roll into the rubber cover film of required gauge thickness and width;
(3) moulding: with rubber cover film and conveying belt belt carcass and the synthetic made-up belt of limit sticker;
(4) sulfuration: the made-up belt of forming is vulcanized at vulcanizing press, and curing temperature is 155 ℃, and curing time is 30 minutes, and pressure is 14MPa, obtains described high abrasion rubber cover.
Embodiment three: a kind of preparation method of high abrasion rubber cover of white carbon black reinforcement, and the component ratio is counted by weight, comprises following processing step:
(1) in Banbury mixer, carry out two sections mixing: one section mixing 85 parts of emulsion polymerized styrene butadiene rubbers, 15 parts of cis-1,4-polybutadiene rubber of adding earlier, add 65 parts of white carbon blacks then, add 2 parts of Microcrystalline Waxes, 2 parts of dispersion agents, 6 parts of coumarone indene resins, 9 parts of aromatic hydrocarbon oil, 6 parts of silane coupling agent Si69 again, add 2 parts of anti-aging agent RDs, 1.5 parts of anti-aging agent 6PPD, 5 parts of nano zine oxides, 1.5 parts of stearic acid at last, one mixing refining period is 4 minutes, and the Banbury mixer temperature is 130 ℃; Add 1.2 parts of accelerator NSs, 1.5 parts of TM monex TD, 1.2 parts of sulphur during two-stage mixing, the temperature of two-stage mixing is 100 ℃, and the refining time is 4 minutes, obtains rubber unvulcanizate;
(2) go out film: the rubber unvulcanizate that step (1) is obtained carries out freshening in mill, and the freshening temperature is 70 ℃, and knit mark is 4 minutes; Carry out clot behind the freshening and park, storage period 2min obtains freshening glue; Freshening glue is dropped into rolling press, roll into the rubber cover film of required gauge thickness and width;
(3) moulding: with rubber cover film and conveying belt belt carcass and the synthetic made-up belt of limit sticker;
(4) sulfuration: the made-up belt of forming is vulcanized at vulcanizing press, and curing temperature is 155 ℃, and curing time is 40 minutes, and pressure is 12MPa, obtains described high abrasion rubber cover.
Embodiment four: a kind of preparation method of high abrasion rubber cover of white carbon black reinforcement, and the component ratio is counted by weight, comprises following processing step:
(1) in Banbury mixer, carry out two sections mixing: one section mixing 100 parts of emulsion polymerized styrene butadiene rubbers, 20 parts of cis-1,4-polybutadiene rubber of adding earlier, add 70 parts of white carbon blacks, 20 parts of carbon black N220 then, add 4 parts of Microcrystalline Waxes, 4 parts of dispersion agents, 10 parts of coumarone indene resins, 10 parts of aromatic hydrocarbon oil, 8 parts of silane coupling agent Si69 again, add 4 parts of anti-aging agent RDs, 4 parts of anti-aging agent 6PPD, 10 parts of nano zine oxides, 5 parts of stearic acid at last, one mixing refining period is 5 minutes, and the Banbury mixer temperature is 120 ℃; Add 2 parts of accelerator NSs, 2 parts of TM monex TD, 2 parts of sulphur during two-stage mixing, the temperature of two-stage mixing is 100 ℃, and the refining time is 3 minutes, obtains rubber unvulcanizate;
(2) go out film: the rubber unvulcanizate that step (1) is obtained drops in the cold feed extruder, rolls into the rubber cover film of required gauge thickness and width;
(3) moulding: with rubber cover film and conveying belt belt carcass and the synthetic made-up belt of limit sticker;
(4) sulfuration: the made-up belt of forming is vulcanized at vulcanizing press, and curing temperature is 160 ℃, and curing time is 30 minutes, and pressure is 15MPa, obtains described high abrasion rubber cover.
Claims (1)
1. the preparation method of the high abrasion rubber cover of a white carbon black reinforcement is characterized in that, the component ratio is counted by weight, comprises following processing step:
(1) in Banbury mixer, carry out two sections mixing: one section mixing 80～100 parts of emulsion polymerized styrene butadiene rubbers, 0～20 part of cis-1,4-polybutadiene rubber of adding earlier, add 40～70 parts of white carbon blacks, 0～20 part of carbon black N220 then, add 1～4 part of Microcrystalline Wax, 1～4 part of dispersion agent, 4～10 parts of coumarone indene resins, 4～10 parts of aromatic hydrocarbon oil, 4～12 parts of silane coupling agent Si69 again, add 1～4 part of anti-aging agent RD, 1～4 part of anti-aging agent 6PPD, 5～10 parts of nano zine oxides, 1～5 part of stearic acid at last, one mixing refining period is 3～5 minutes, and the Banbury mixer temperature is 120～140 ℃; Add 1～2 part of accelerator NS, 1～2 part of TM monex TD, 1～2 part of sulphur during two-stage mixing, the temperature of two-stage mixing is 80～100 ℃, and the refining time is 3～5 minutes, obtains rubber unvulcanizate;
(2) go out film: the rubber unvulcanizate that step (1) is obtained carries out freshening in mill, and the freshening temperature is 60～80 ℃, and knit mark is 3～5 minutes; Carry out clot behind the freshening and park, storage period 0～10min obtains freshening glue; Freshening glue is dropped into rolling press, roll into the rubber cover film of required gauge thickness and width;
The rubber unvulcanizate that perhaps step (1) is obtained drops in the cold feed extruder, rolls into the rubber cover film of required gauge thickness and width;
(3) moulding: with rubber cover film and conveying belt belt carcass and the synthetic made-up belt of limit sticker;
(4) sulfuration: the made-up belt of forming is vulcanized at vulcanizing press, and curing temperature is 150～160 ℃, and curing time is 30～40 minutes, and pressure is 10～15MPa, obtains described high abrasion rubber cover.
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Effective date of registration: 20220512 Address after: 214145 No. 88, Lihe East Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: WUXI BOTON CONVEYOR SOLUTION Co.,Ltd. Address before: 214112 No. 19 Zhang Cun road, Mei Village, New District, Jiangsu, Wuxi Patentee before: WUXI BOTON TECHNOLOGY Co.,Ltd. |