CN101838430B - Fluoride rubber and plastic sealing material and preparation method thereof - Google Patents
Fluoride rubber and plastic sealing material and preparation method thereof Download PDFInfo
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- CN101838430B CN101838430B CN2010101848876A CN201010184887A CN101838430B CN 101838430 B CN101838430 B CN 101838430B CN 2010101848876 A CN2010101848876 A CN 2010101848876A CN 201010184887 A CN201010184887 A CN 201010184887A CN 101838430 B CN101838430 B CN 101838430B
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Abstract
The invention discloses a fluoride rubber and plastic sealing material with good performance and low cost, and a preparation method of the rubber. The sealing material comprises the following raw materials in part by weight: 40-80 parts of fluorous rubber, 5-20 parts of calcium silicate, 5-20 parts of carbon black, 5-20 parts of magnesium oxide and 0.5-2 parts of cross-linking agent. The method comprises the steps of arranging the fluorous rubber in an internal mixer at the temperature of 150-160 DEG C with the plasticating time of 4min-10min, adding the carbon black, 1/3 of the magnesium oxide and 1/3 of the calcium silicate with the plasticating time of 6min-8min, then adding the rest magnesium oxide and calcium silicate, plasticating, stopping, overturning the warehouse to output the materials for spare use, arranging the materials in an open mill, adding the cross-linking agent at the temperature less than or equal to 65 DEG C, thinly introducing four times after material feed, packing with a triangular bag five times, and feeding plates.
Description
Technical field
The present invention relates to a kind of specialty elastomer and preparation method thereof, specifically a kind of rubber and plastic sealing material and preparation method who is particularly useful for making automotive sealant.
Background technology
Along with development of technology, new and high technology, high-performance equipment (as turbocharged engine system, turbine loader, automatic transmission, electronic fuel-injection system device, waste gas purification apparatus, new lubricant or the like) have obtained using widely in automobile industry.The application of new technique makes that the vehicle weight specification is more and more littler, and the engine room space is more and more narrower, and temperature is more and more higher.And the application of new work engine oil makes that the additive, particularly corrodibility additive in the lubricating oil is more and more, and chemical environment becomes increasingly complex.The reversing of bent axle behind the automobile simultaneously, it is serious day by day to make bent axle damage phenomenon with silicone-rubber seals.Therefore automobile industry is more and more higher to the performance requriements of rubber packing material at present.Traditional NBR elastomeric material can not satisfy actual needs far away because of its thermal ageing, weathering resistance, poor chemical stability.Viton is a kind of for satisfying a kind of specialty elastomer that aircraft industry sealing needs are researched and developed, and is subjected to the favor of automobile industry with its excellent thermotolerance, weathering resistance, chemical stability.But viton cost height, and production technique is big to the stability influence of product performance.
Summary of the invention
Purpose of the present invention is exactly that a kind of excellent property and the low fluoride rubber and plastic sealing material of cost will be provided, and a kind of preparation method of this fluorine rubber and plastic is provided simultaneously.
The object of the present invention is achieved like this:
Fluoride rubber and plastic sealing material provided by the present invention, contain the raw material of following weight part ratio:
40～80 parts of viton; 5～20 parts of Calucium Silicate powder; 5～20 parts of carbon blacks; 5～20 parts in magnesium oxide; 0.5～2 part of linking agent.
In order further to reduce manufacturing cost of the present invention, invent described fluoride rubber and plastic sealing material, also can also contain 5～20 parts of calcinated argils.
Linking agent described in the present invention can be selected bisphenol AF, triethylenediamine, the also mixture of the two, but preferred triethylenediamine.
Fluoride rubber and plastic sealing material of the present invention, its screening formulation is: 40～50 parts of viton; 10～15 parts of Calucium Silicate powder; 15～20 parts of carbon blacks; 5～10 parts in magnesium oxide; 0.5～1 part of triethylenediamine, 5～20 parts of calcinated argils.Adopt screening formulation to say that its various performances of prepared rubber and plastic sealing material are even more ideal.
The present invention provides a kind of preparation method of this fluoride rubber and plastic sealing material at the same time, and it may further comprise the steps:
A, take by weighing each component by above-mentioned raw materials and weight proportion;
B, viton is placed Banbury mixer, under 150～160 ℃ of conditions, time 4min～10min plasticates; Add the magnesium oxide of carbon black, 1/3 amount, the Calucium Silicate powder of 1/3 amount, time 6min～8min plasticates; The magnesium oxide, the Calucium Silicate powder that add residual content again, the 6min～8min that plasticates shuts down, and turns over warehouse discharging, and is cool to stand-by below 65 ℃;
C, above-mentioned material is placed mill, under≤65 ℃ of conditions, add linking agent, after material feeding finished, thin-pass 4 times was stamped the triangle bag 5 times, following sheet.
The inventive method is simple, and is easy to operate, and prepared fluoride rubber and plastic sealing material stable in properties.
Fluoride rubber and plastic sealing material provided by the present invention proves that after testing it has excellent specific properties such as high temperature resistant, oil resistant, anti-ozone, abrasion performance, and its performance and pure viton are quite or more excellent.Innovation part of the present invention is that the present invention fills a prescription and has both increased many fillers, reduced the manufacturing cost of elastomeric material, the primary characteristic of the viton of having withed a hook at the end simultaneously.And adopt the rubber and plastic sealing material of the different production batchs of the inventive method manufacturing, its performance difference is minimum.
Fluoride rubber and plastic sealing material of the present invention can be used for making all kinds of oil sealings in the automobile, as engine oil seal, transmission system oil sealing and variator sealing, air inlet gasket, compressor seal circle, pump seal or the like.
Embodiment
Embodiment 1
A, take by weighing viton 40kg; Calucium Silicate powder 1kg; Carbon black 15kg; Magnesium oxide 5kg; Triethylenediamine 0.5kg, calcinated argil 5kg part.
B, viton is placed Banbury mixer, under 150 ℃ of conditions, time 4min plasticates; The magnesium oxide that adds carbon black, 1/3 amount, 1/3 amount, time 8min plasticates; The magnesium oxide, the Calucium Silicate powder that add residual content again, the 6min that plasticates shuts down, and turns over warehouse discharging, and is cool to stand-by below 65 ℃;
C, above-mentioned material is placed mill, under≤65 ℃ of conditions, add triethylenediamine, after material feeding finished, thin-pass 4 times was stamped the triangle bag 5 times, following sheet.
Embodiment 2～6 (seeing Table 1)
Preparation method embodiment 1 is basic identical.Consumption and the processing condition of just filling a prescription are different, but all within the described scope of the inventive method.
Table 1
Beneficial effect of the present invention has obtained checking (seeing table 2 for details) by following test data.
Two sections 160 ℃ * 4h of 175 ℃ * 4min of cure conditions
Table 2
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Hardness (Shao Shi) degree | 72 | 76 | 74 | 75 |
| Tensile strength/MPa | 14.9 | 14.9 | 14.2 | 14.8 |
| Tensile yield/% | 285 | 280 | 290 | 289 |
| Behind the 170 ℃ * 70h of hot air aging, hardness (Shao Shi) degree | 72 | 76 | 75 | 75 |
| 100% stress at definite elongation/MPa | 4.8 | 4.9 | 4.8 | 4.8 |
| Volume increment rate/% in oil (40 ℃ in octane-iso toluene 70/30 mixture * 70h) | +4.8 | +4.8 | +4.8 | +4.8 |
Above-mentioned testing method, hardness (Shao Shi) are spent according to GB/T531-1999; Tensile strength is according to GB/T528-1999; Tensile yield is according to GB/T3512-1999; Thermal aging property is tested according to the GB/T3512-2001 relevant regulations.
150 ℃ * 72h the standard oil of anti-1# detected result:
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Hardness (Shao Shi) degree changes | +2 | +2 | +2 | +2 |
| The tensile strength velocity of variation | +4 | +3.5 | +3.5 | +3.5 |
| Pull apart elongation change | -6 | -5.5 | -6 | -6 |
| Volume change) | 0 | 0 | 0 | 0 |
The anti-No. 3 standard oil detected results of 150 ℃ * 72h:
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Hardness (Shao Shi) degree changes | -20 | -21 | -21 | -20 |
| The tensile strength velocity of variation | -3.5 | -3.6 | -3.6 | -3.5 |
| Pull apart elongation change | -6 | -6 | -6 | -6 |
| Volume change) | +21 | +21 | +21 | +21 |
The anti-hypoid gear oil of 130 ℃ * 72h (Great Wall board GL-5), speed of mainshaft 4200r/min.
Detected result:
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Hardness (Shao Shi) degree changes | 0 | 0 | 0 | 0 |
| The tensile strength velocity of variation | -3.5 | -3.5 | -3.5 | -3.5 |
| Pull apart elongation change | -6 | -6 | -6 | -6 |
| Volume change) | +1 | +1 | +1 | +1 |
The anti-hypoid gear oil of 120 ℃ * 120h (Great Wall board GL-5), speed of mainshaft 4200r/min.
Detected result:
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Hardness (Shao Shi) degree changes | -2 | -2 | -2 | -2 |
| The tensile strength velocity of variation | -6.5 | -7 | -7 | -7 |
| Pull apart elongation change | -12 | -13 | -13 | -1 |
| Volume change) | +2.5 | +3 | +3 | +3 |
The anti-hypoid gear oil of 120 ℃ * 200h (Great Wall board GL-5), speed of mainshaft 4200r/min.
Detected result:
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Hardness (Shao Shi) degree changes | -2 | -2.5 | -2.5 | -2.5 |
| The tensile strength velocity of variation | -7 | -7 | -7 | -7 |
| Pull apart elongation change | -13 | -13 | -13 | -13 |
| Volume change) | +2.5 | +2.5 | +2.5 | +2.5 |
The oil sealing product performance
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Before radial force/N test | 34.7 | 34.8 | 34.8 | 34.7 |
| After the test | 32.6 | 32.3 | 32.1 | 32.1 |
| Before the lip footpath/mm test | 53.24 | 53.05 | 53.12 | 53.20 |
| After the test | 53.22 | 52.80 | 53.75 | 52.80 |
| The abrasion phenomenon | Do not have | Do not have | Do not have | Do not have |
| Spillage/g | 0 | 0 | 0 | 0 |
Claims (2)
1. the preparation method of a fluoride rubber and plastic sealing material is characterized in that it may further comprise the steps:
A, take by weighing 40～80 parts of viton, 5～20 parts of Calucium Silicate powder, 5～20 parts of carbon blacks, 5～20 parts in magnesium oxide, 0.5～2 part of linking agent according to weight part ratio;
B, viton is placed Banbury mixer, under 150～160 ℃ of conditions, time 4min～10min plasticates; Add the magnesium oxide of carbon black, 1/3 amount, the Calucium Silicate powder of 1/3 amount, time 6min～8min plasticates; The magnesium oxide, the Calucium Silicate powder that add residual content again, the 6min～8min that plasticates shuts down, and turns over warehouse discharging, and is cool to stand-by below 65 ℃;
C, above-mentioned material is placed mill, under≤65 ℃ of conditions, add linking agent, after material feeding finished, thin-pass 4 times was stamped the triangle bag 5 times, following sheet.
2. the preparation method of fluoride rubber and plastic sealing material according to claim 1 is characterized in that described linking agent is a triethylenediamine.
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| CN2010101848876A CN101838430B (en) | 2010-05-28 | 2010-05-28 | Fluoride rubber and plastic sealing material and preparation method thereof |
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| CN101838430B true CN101838430B (en) | 2011-12-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103275444A (en) * | 2013-05-09 | 2013-09-04 | 蔡德扬 | Fluororubber paste and preparation method thereof |
| CN103275443A (en) * | 2013-05-09 | 2013-09-04 | 蔡德扬 | Fluororubber and acrylate combined vulcanized rubber and preparation method thereof |
| CN103450606B (en) * | 2013-09-17 | 2015-10-14 | 烟台石川密封垫板有限公司 | A kind of gasket seal its preparation method and particular manufacturing craft thereof |
| CN103554797A (en) * | 2013-10-29 | 2014-02-05 | 烟台润蚨祥油封有限公司 | Low-temperature resistant fluororubber for oil seal |
| CN103613889A (en) * | 2013-11-12 | 2014-03-05 | 铜陵市肆得科技有限责任公司 | Butyl rubber-fluorine rubber composite sealing pad material and preparation method thereof |
| CN103665675B (en) * | 2013-11-15 | 2016-04-13 | 安徽宏发节能设备有限公司 | Gasket material that a kind of good airproof performance intensity is high and preparation method thereof |
| CN103665674B (en) * | 2013-11-15 | 2016-01-20 | 安徽宏发节能设备有限公司 | A kind of Rubber gasket material and preparation method thereof |
| CN103694607A (en) * | 2013-11-29 | 2014-04-02 | 马鞍山市中澜橡塑制品有限公司 | High-strength fluorine rubber gasket material and preparation method thereof |
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| CN1288204C (en) * | 2005-06-20 | 2006-12-06 | 蒋惠成 | High temperature steam and oil resistant fluororubber pad |
| CN101067403B (en) * | 2007-05-29 | 2010-06-02 | 南昌大学 | Technology for producing new viton coating metal sealing gasket for internal combustion engine use |
| CN101333324B (en) * | 2008-07-27 | 2011-06-15 | 青岛茂林橡胶制品有限公司 | Rubber compositions for oil seal of rubber framework and method for manufacturing same |
| CN101649904A (en) * | 2009-08-26 | 2010-02-17 | 书元机械企业(昆山)有限公司 | High-pressure anti-knocking O-shaped sealing ring |
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Effective date of registration: 20160602 Address after: 053200, Hebei, Hengshui Province, Yongxing Road, Jizhou on the north side of the west side of Spring Street Patentee after: Hebei Xinke new Mstar Technology Ltd Address before: 053200, Hebei, Jizhou province Wei home Tun Tun East Village Tuan Tuan Patentee before: Tong Guolei |