CN102532616B - Sizing material of stator rubber sleeve for pre-stressed vacuum grouting pump and preparation method thereof - Google Patents
Sizing material of stator rubber sleeve for pre-stressed vacuum grouting pump and preparation method thereof Download PDFInfo
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- CN102532616B CN102532616B CN 201110456920 CN201110456920A CN102532616B CN 102532616 B CN102532616 B CN 102532616B CN 201110456920 CN201110456920 CN 201110456920 CN 201110456920 A CN201110456920 A CN 201110456920A CN 102532616 B CN102532616 B CN 102532616B
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Abstract
The invention discloses a sizing material of a stator rubber sleeve for a pre-stressed vacuum grouting pump. The sizing material comprises the following raw materials by weight: 95 to 105 parts of natural rubber, 4 to 6 parts of isoprene rubber, 0.04 to 0.06 parts of butadiene rubber, 1.1 to 1.3 parts of styrene-butadiene rubber, 2 to 4 parts of zinc oxide, 0.3 to 0.5 parts of stearic acid, 0.3 to 0.6 parts of sulfur, 0.2 to 0.4 parts of antiagers DPPD (Diphenyl-P-Phenylene Diamine), 8 to 12 parts of carbon black N339, 0.1 to 0.3 parts of accelerating agents M, 3 to 5 parts of Rhine wax, 0.2 to 0.3 parts of antiscorcher CTP (cytidine triphosphate), and 4 to 6 parts of cottonseed oil. When the sizing material is prepared, a part of formula raw materials is processed through sizing material plastication at first as required, then other formula materials are added for sizing material mixing, and a vulcanization system is added and is processed through thin-passing for 5 to 7 times finally. Rubber damping products that are produced according to the rubber formula achieve favorable heat-proof aging performance and excellent tear resistance, and also achieve excellent dynamic fatigue resisting performance.
Description
Technical field
The present invention relates to vulcanization of rubber field, be specifically related to a kind of prestress vacuum grouting pump stator rubber sleeve compound and preparation method thereof.
Background technology
Prestress vacuum grouting pump stator rubber cover, it also is consumable accessory in the prestress vacuum grouting pump, its selection quality, the life-span of direct shadow lining, the life-span of general under normal circumstances stator rubber cover is 3-6 month, if select formulated rubber material improper, lining may come off from steel pipe or rubber falls piece.So require us that the rubber size prescription is studied.
Summary of the invention
The invention provides a kind of prestress vacuum grouting pump stator rubber sleeve compound and preparation method thereof, the prestress vacuum grouting pump stator rubber cover that this rubber size prescription is produced has good heat-resistant aging, resistance to tearing, and anti-dynamic fatigue property is excellent simultaneously.
The present invention adopts following technical scheme to achieve these goals:
A kind of prestress vacuum grouting pump stator rubber sleeve compound is characterized in that the weight part of its constitutive material is: natural rubber 95-105, polyisoprene rubber 4-6, divinyl rubber 0.04-0.06, styrene-butadiene rubber(SBR) 1.1-1.3, zinc oxide 2-4, stearic acid 0.3-0.5, sulphur 0.3-0.6, antioxidant DPPD 0.2-0.4, carbon black N3398-12, captax 0.1-0.3, Lay mattress wax 3-5, anti-scorching agent CTP 0.2-0.3, Oleum Gossypii semen 4-6.
Described prestress vacuum grouting pump stator rubber sleeve compound is characterized in that the weight part of its constitutive material is: natural rubber 100, polyisoprene rubber 5, divinyl rubber 0.05, styrene-butadiene rubber(SBR) 1.2, zinc oxide 3, stearic acid 0.4, sulphur 0.5, antioxidant DPPD 0.3, carbon black N339 10, captax 0.2, Lay mattress wax 4, anti-scorching agent CTP 0.3, Oleum Gossypii semen 5.
The preparation method may further comprise the steps:
(1) moulds white silk: start Banbury mixer, will natural rubber, polyisoprene rubber, divinyl rubber, styrene-butadiene rubber(SBR) drop in the Banbury mixer and mould white silk, turn refining to several rubber fully to merge, when temperature reaches 110-125 ℃, the beginning discharge is parked cooling 23-25 hour behind the discharge;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in the Banbury mixer, add again zinc oxide, stearic acid, anti-aging agent class material, after mixing 2-3 minute, again carbon black is added at twice wherein mixing, it is mixing to add first 2/3 carbon black, adds residue 1/3 carbon black again, turns refining about 8-15 minutes, with the abundant mixing 5-6 of Oleum Gossypii semen minute, parked 18-22 hour after then rubber unvulcanizate being emitted again;
(3) add vulcanization system: sulphur, promotor, the scorch retarder of formula rate are joined in the rubber unvulcanizate that parks, and thin-pass 5-7 is all over getting final product.
Beneficial effect of the present invention:
Carbon black and vulcanization system are selected high wear-resistant carbon black N339 in the prescription, and conventional vulcanization system combines, and have improved flex fatig resistance and the dynamic fatigue property of cross-linked rubber.
1, aterrimus sizing material, the rubber unvulcanizate good fluidity is easy to sulfuration processing, and qualification rate is high;
2, have good over-all properties, strong with metal bonding; Mechanical property, fatigue property, the performance such as ageing-resistant are all higher, are fit to produce wear resisting property, ageing resistance are required higher pre-stress construction vacuum grouting pump stator rubber cover product.
Embodiment
Embodiment 1: the prestress vacuum grouting pump stator rubber sleeve compound, the weight part of its constitutive material is: natural rubber 100, polyisoprene rubber 5, divinyl rubber 0.05, styrene-butadiene rubber(SBR) 1.2, zinc oxide 3, stearic acid 0.4, sulphur 0.5, antioxidant DPPD 0.3, carbon black N339 10, captax 0.2, Lay mattress wax 4, anti-scorching agent CTP 0.3, Oleum Gossypii semen 5.
The preparation method of prestress vacuum grouting pump stator rubber sleeve compound may further comprise the steps:
(1) moulds white silk: start Banbury mixer, will natural rubber, polyisoprene rubber, divinyl rubber, styrene-butadiene rubber(SBR) drop in the Banbury mixer and mould white silk, turn refining to several rubber fully to merge, when temperature reaches 110-125 ℃, the beginning discharge is parked cooling 23-25 hour behind the discharge;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in the Banbury mixer, add again zinc oxide, stearic acid, anti-aging agent class material, after mixing 2-3 minute, again carbon black is added at twice wherein mixing, it is mixing to add first 2/3 carbon black, adds residue 1/3 carbon black again, turns refining about 8-15 minute, with the abundant mixing 5-6 of Oleum Gossypii semen minute, parked 18-22 hour after then rubber unvulcanizate being emitted again;
(3) add vulcanization system: sulphur, promotor, the scorch retarder of formula rate are joined in the rubber unvulcanizate that parks, and thin-pass 5-7 is all over getting final product.
Embodiment 2: the stator rubber cover of producing with prestress vacuum grouting pump stator rubber sleeve compound of the present invention contrasts such as following table with common stator rubber cover
Rubber product of the present invention and General Purpose Rubber product dynamic fatigue test performance comparison
Test conditions: condition: give and carrying: 4900N, amplitude: ± 3mm, minimum 1,200,000 times of frequency: 3Hz
Claims (2)
1. a prestress vacuum grouting pump stator rubber sleeve compound is characterized in that the weight part of its constitutive material is: natural rubber 95-105, polyisoprene rubber 4-6, divinyl rubber 0.04-0.06, styrene-butadiene rubber(SBR) 1.1-1.3, zinc oxide 2-4, stearic acid 0.3-0.5, sulphur 0.3-0.6, antioxidant DPPD 0.2-0.4, carbon black N339 8-12, captax 0.1-0.3, Lay mattress wax 3-5, anti-scorching agent CTP 0.2-0.3, Oleum Gossypii semen 4-6.
2. prestress vacuum grouting pump stator rubber sleeve compound according to claim 1 is characterized in that the weight part of its constitutive material is: natural rubber 100, polyisoprene rubber 5, divinyl rubber 0.05, styrene-butadiene rubber(SBR) 1.2, zinc oxide 3, stearic acid 0.4, sulphur 0.5, antioxidant DPPD 0.3, carbon black N339 10, captax 0.2, Lay mattress wax 4, anti-scorching agent CTP 0.3, Oleum Gossypii semen 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201110456920 CN102532616B (en) | 2011-12-30 | 2011-12-30 | Sizing material of stator rubber sleeve for pre-stressed vacuum grouting pump and preparation method thereof |
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CN 201110456920 CN102532616B (en) | 2011-12-30 | 2011-12-30 | Sizing material of stator rubber sleeve for pre-stressed vacuum grouting pump and preparation method thereof |
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CN102532616A CN102532616A (en) | 2012-07-04 |
CN102532616B true CN102532616B (en) | 2013-03-27 |
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CN103131060A (en) * | 2012-12-19 | 2013-06-05 | 安徽中鼎减震橡胶技术有限公司 | Rubber material and method for machining automobile front auxiliary frame lining with rubber material |
CN103289153B (en) * | 2013-06-24 | 2015-03-18 | 苏州新区佳合塑胶有限公司 | Modified damping styrene butadiene rubber and preparation method thereof |
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CN100429258C (en) * | 2005-07-12 | 2008-10-29 | 北京化工大学 | Improvement of rubber compression elasticity at low-temperature |
CN100589212C (en) * | 2007-11-06 | 2010-02-10 | 远东电缆有限公司 | Spring cable |
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