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Fuel oil resistant rubber and O-shaped rubber sealing ring

A fuel-resistant and rubber-resistant technology, which is applied in the field of rubber sealing rings resistant to fuel oil and oxygen-containing ethanol gasoline, can solve the problems of poor and difficult processing performance of rubber-plastic alloys, and achieve good processing performance, low material cost, and balance problem solving effect

Inactive Publication Date: 2012-08-08
重庆建兴橡胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the processing performance of rubber-plastic alloys is poor, which also brings certain difficulties to the wide use and promotion of rubber alloys.

Method used

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  • Fuel oil resistant rubber and O-shaped rubber sealing ring
  • Fuel oil resistant rubber and O-shaped rubber sealing ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Formula: rubber alloy NBR7030: 20kg, zinc oxide: 0.6kg, active agent stearic acid 0.2kg, protective agent KY-405: 0.2kg, protective agent NBC: 0.2kg, physical protective agent OK1900: 0.3kg, vulcanizing agent S -80: 0.1kg, thiazole vulcanization accelerator: 0.52kg, carbon black: 8kg, metal salt filler: 4kg, plasticizer DOS: 4kg, lubricant PEG4000: 0.4kg, T-I6: 0.2kg, anti-frost Agent P560: 0.2kg, anti-scorch agent CTP: 0.06kg.

[0027] The processing steps of fuel-resistant rubber include: rubber alloy mastication and rubber alloy mixing with other raw materials.

[0028] Plasticizing equipment: XK-450 open type rubber mixing machine, plasticizing requirements: the rubber material on the machine at one time should be ≤30kg; the two-stage plasticating method is adopted, and the second-stage plastication must be parked for 8 to 24 hours after the first-stage plastication. In the plasticizing stage, the sheet should be stretched ≥ 8-15 times at the "0" roller distance; t...

Embodiment 2

[0033] Formula: rubber alloy NBR7030: 20kg, zinc oxide: 1kg, active agent stearic acid 0.2kg, protective agent KY-405: 0.2kg, protective agent NBC: 0.3kg, physical protective agent OK1900: 0.4kg, vulcanizing agent S-80 : 0.16kg, thiuram vulcanization accelerator: 0.56kg, carbon black: 8kg, silicon-containing compound filler: 4kg, plasticizer DOP: 4kg, lubricant PEG4000: 0.4kg, T-I6: 0.4kg, Cream P560: 0.2kg, anti-scorch agent CTP: 0.06kg.

[0034] Processing technology is with embodiment 1.

Embodiment 3

[0036] Formula: rubber alloy NBR7030: 20kg, active agent magnesium oxide: 0.8kg, active agent stearic acid 0.3kg, protective agent KY-405: 0.3kg, protective agent NBC: 0.2kg, physical protective agent OK1900: 0.5kg, vulcanizing agent S-80: 0.14kg, thiazole vulcanization accelerator: 0.6kg, carbon black: 9kg, metal oxide filler: 6kg, plasticizer A: 4.4kg, lubricant PEG4000: 0.45kg, T-I6: 0.45kg , Anti-frost agent T-I6: 0.3kg, anti-scorch agent phthalic anhydride: 0.07kg.

[0037] Processing technology is with embodiment 1.

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PUM

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Abstract

The invention relates to a fuel oil resistant and oxygen-contain ethanol gasoline resistant rubber sealing series product for a vehicular fuel oil pump assembly. The fuel oil resistant rubber comprises the following basic components in parts by mass: 100 parts of rubber alloy, 4-8 parts of activating agent, 2-3 parts of chemical protection agent, 1.5-3 parts of physical protecting agent, 0.3-1 part of vulcanizing agent, 2.5-3.5 parts of vulcanizing accelerator, 30-70 parts of carbon black, 15-40 parts of filling agent, 18-25 parts of plasticizer, 1.5-5 parts of lubricating agent, 1-2 parts of cream inhibiting gel and 0.1-0.5 part of antiscorching agent. According to the rubber obtained according to the technical scheme provided by the invention, the rubber alloy is used as a body material, so that the cost of a formula is far lower than that of fluororubber. Meanwhile, under the conditions that no rubber exists and special processing equipment is used, the rubber material with fuel oil resistance, ozone resistance, high physical and mechanical performance, favorable elasticity, favorable processing process performance and the like is obtained by reasonably configuring a special assistant. The rubber material is suitable for O-shaped rubber sealing materials and relevant parts of automobiles and motorcycles.

Description

technical field [0001] The invention relates to a rubber sealing ring, in particular to a rubber sealing ring resistant to fuel oil and oxygen-containing ethanol gasoline used in a vehicle fuel pump assembly. Background technique [0002] The rubber sealing ring is an annular cover composed of one or several parts, which are fixed in the gap to form a narrow labyrinth gap or elastic barrier, which plays the role of barrier and seal. Some are for liquid sealing, while others are for air sealing. In the case of liquid sealing, oil sealing is more complicated. For example, the rubber sealing ring used on the cylinder, piston and other parts of the car engine must not only achieve the barrier sealing effect, but also because the sealed medium is fuel or lubricating oil, the rubber sealing ring must also be oil-resistant, and some are also High temperature resistance is required to ensure the service life. [0003] And the oil-resistant rubber sealing ring in the prior art is m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08K13/02C08K5/09C08K3/22C08K3/04
Inventor 邹冬云龚争艳冯荣
Owner 重庆建兴橡胶制品有限公司
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