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Chemical pump used rubber sealing material
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A technology for rubber seals and pumps, applied in the field of sealing rubber, can solve the problems of high production cost, insufficient chemical corrosion resistance, and low service life, and achieve the effects of low cost, wide operating temperature range, and improved service life
Active Publication Date: 2017-02-22
安徽富乐泰水泵系统有限公司
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Abstract
Description
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Problems solved by technology
With the development of industrial technology and increasingly complex and diverse requirements, sealing materials have also developed rapidly, with more and more types, and their physical and chemical properties have been continuously improved; however, the chemical corrosion resistance of existing chemical pump sealing materials Failure to meet certain production requirements, low service life and high production costs
Method used
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Examples
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Comparison scheme
Effect test
Embodiment 1
[0018] A rubber sealing material for chemical pumps, which is made of the following components in parts by weight: styrene-butadiene rubber 62, fluorine rubber 25, polyethylene glycol 2, stearic acid 6, anti-aging agent 0.2, sulfur 1, polypropylene 8, modified Sexual filler12.
[0019] The modified filler is made of the following components in parts by weight: alumina micropowder 12, ceramic micropowder 8, white carbon black 4, manganesepowder 1, attapulgite 0.2; the preparation method of the modified filler is: (1 ), 12 parts of alumina micropowder, 8 parts of ceramic micropowder and 0.1 part of attapulgite were uniformly mixed together by weight to obtain mixture 1, and the mixture 1 was heated to 255°C and pressurized to 0.5MPa, and kept After holding the pressure for 30 minutes, add 50% absolute ethanol by mass of the mixture 1, grind evenly after stirring, remove the absolute ethanol after grinding for 30 minutes, and let it stand for use; (2), mix 4 parts of white carbo...
Embodiment 2
[0024] A rubber sealing material for chemical pumps, which is made of the following components in parts by weight: styrene-butadiene rubber 68, fluorine rubber 30, polyethylene glycol 4, stearic acid 10, anti-aging agent 0.6, sulfur 4, polypropylene 12, modified Sexual filler18.
Embodiment 3
[0026] A rubber sealing material for chemical pumps, which is made of the following components in parts by weight: styrene-butadiene rubber 64, fluorine rubber 28, polyethylene glycol 3, stearic acid 8, anti-aging agent 0.4, sulfur 2, polypropylene 10, modified Sexual filler15.
[0027] Test and compare the compression set rate % of the sealing material under high temperature compression set (compression condition: 25% compression, 24h):
[0028] Table 1
[0029] 20℃ 50℃ 100℃ 150℃ 200℃ Example 1 0.1 1 1.8 3 5 Example 2 0.1 0.9 1.7 2.9 4.8 Example 3 0.1 1.2 1.9 3.1 5.2 Comparative example 1 3 4 8 15 20 Comparative example 2 4 6 10 18 25
[0030] Among them, Comparative Example 1 is: a rubber sealing material for chemical pumps, made of the following components in parts by weight: styrene-butadiene rubber 68, fluororubber 30, polyethylene glycol 4, stearic acid 10, anti-aging agent 0.6, sulfur 4. Polypropylene...
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Abstract
The invention discloses a chemical pump used rubber sealing material. The chemical pump used rubber sealing material is characterized by being prepared from the following ingredients: butadiene styrene rubber, fluororubber, polyethylene glycol, stearic acid, an anti-aging agent, sulfur, polypropylene and a modified filler. Compared with the prior art, the chemical pump used rubber sealing material prepared by the invention has the advantages of good flexibility, low density, compression resilience, wide temperature using range and the like, also has the advantages of higher tensile strength, tearing strength and abrasive resistance, large elasticity modulus, high temperature resistance, chemical corrosion resistance, good heat-conducting property, low thermal expansion coefficient and the like and has self-lubricating property; all the ingredients are uniformly dispersed in the sealing material, therefore, the stability is high, so as to further improve the property of the sealing material; the heat dispersion of the sealing material can be greatly improved through the synergistic effect of all the ingredients and the modified filler, so as not to generate the phenomenon of temperature accumulation.
Description
technical field [0001] The invention relates to the technical field of sealing rubber, in particular to a rubber sealing material for chemical pumps. Background technique [0002] Whether the chemical pump is good or bad, in addition to the material and structure of the chemical pump meeting the requirements of the working medium, the choice of sealing structure and form is also crucial. Reasonable selection of sealing structure and form is the key to ensure normal and orderly production, reduce maintenance and repair costs, reduce engineering labor intensity, reduce material waste, and avoid environmental pollution. The sealing material refers to the material that can withstand the joint displacement to achieve the purpose of airtightness and watertightness and is embedded in the building joints. The early sealing materials are mainly fabrics, mineral fibers or felts. With the development of industrial technology and increasingly complex and diverse requirements, sealing m...
Claims
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Application Information
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