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.