High temperature resistant and anti-aging exhaust pipe lug and preparation method thereof

An exhaust pipe and anti-aging technology, which is applied in the field of automotive rubber products, can solve problems such as vibration and noise in the exhaust pipe hanger, affecting user satisfaction with automobile products, and reducing overall performance, so as to enhance thermal stability Performance and vibration isolation performance, good high temperature resistance and chemical corrosion resistance, reduce the effect of odor

Inactive Publication Date: 2015-07-08
ANHUI ZHONGDING SEALING PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the lightweight design of the body, the front engine-front-wheel drive and the widespread use of four-cylinder engines with poor balance, and the exhaust system is in high temperature and muddy environments, due to the extension of the use time, the rubber body will inevitably It will cause aging deformation, etc., and the overall performance of the product will be greatly reduced. The failure of the exhaust pipe lifting lug caused by it and the vibration and noise in the car caused by the excitation of the exhaust system are common problems in newly developed models. , and directly affect the user's satisfaction with automotive products

Method used

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  • High temperature resistant and anti-aging exhaust pipe lug and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] First, prepare the following raw materials in parts by mass: 80 parts of EPDM rubber, 20 parts of hydrogenated nitrile rubber, 4 parts of EPDM-g-PAN compatibilizer, 0.4 parts of insoluble sulfur IS-60, 1.2 parts of DCP, 2 parts of anti-aging Agent IPPST, 1 part of anti-aging agent RD, 0.5 part of anti-aging agent MB, 5 parts of indirect zinc oxide, 0.6 part of accelerator M, 0.5 part of accelerator TRA, 0.5 part of accelerator TMTD, 4 parts of naphthenic oil 4010, 3 parts of ancient Malone resin, 1 part of stearic acid, 1.5 parts of lubricant WB42, 35 parts of carbon black N-330, 25 parts of carbon black N-550.

[0024] Next, after fully mixing the raw materials, place them in an internal mixer for internal mixing for 4 to 6 minutes, and remove the glue at 110°C to obtain synthetic rubber. The synthetic rubber is placed in an open mill for open kneading and molding at 60-70°C to obtain long strips of molding rubber. Then, put the molding rubber into the barrel of the i...

Embodiment 2

[0026] Except that preparation raw material is different, other is the same as embodiment 1. In this example, the following raw materials were prepared in parts by mass: 80 parts of EPDM rubber, 20 parts of hydrogenated nitrile rubber, 6 parts of EPDM-g-PAN compatibilizer, 0.3 parts of insoluble sulfur IS-60, 1.4 parts of DCP, 2 parts Antiaging agent IPPST, 1 part of antiaging agent RD, 0.4 part of antiaging agent MB, 4 parts of indirect zinc oxide, 0.7 part of accelerator M, 0.4 part of accelerator TRA, 0.4 part of accelerator TMTD, 5 parts of naphthenic oil 4010, 3 parts Coumarone resin, 1 part of stearic acid, 1.3 parts of lubricant WB42, 40 parts of carbon black N-330, 20 parts of carbon black N-550.

Embodiment 3

[0028]Except that preparation raw material is different, other is the same as embodiment 1. In this example, the following raw materials are prepared in parts by mass: 80 parts of EPDM rubber, 20 parts of hydrogenated nitrile rubber, 5 parts of EPDM-g-PAN compatibilizer, 0.5 parts of insoluble sulfur IS-60, 1 part of DCP, 1.5 parts Anti-aging agent IPPST, 1 part of anti-aging agent RD, 0.5 part of anti-aging agent MB, 4 parts of indirect zinc oxide, 0.8 part of accelerator M, 0.5 part of accelerator TRA, 0.4 part of accelerator TMTD, 6 parts of naphthenic oil 4010, 4 parts Coumarone resin, 1 part of stearic acid, 1.6 parts of lubricant WB42, 40 parts of carbon black N-330, 25 parts of carbon black N-550.

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Abstract

The invention discloses a high temperature resistant and anti-aging exhaust pipe lug and a preparation method thereof. The exhaust pipe lug comprise the following raw materials: 70-90 parts of EPDM, 10-30 parts of hydrogenated nitrile rubber, 3-8 parts of an EPDM-g- PAN compatibilizer, 0.2-0.5 part of sulphur, 1-2 parts of a peroxide crosslinking agent and the balance of a fertilizer composition. Complex main ethylene propylene terpolymer and hydrogenated nitrile rubber are used as raw rubbers, the EPDM-g-PAN compatibilizer can effectively improve the compatibility of the two raw rubbers; sulfur and peroxide vulcanization system are employed for compound to improve vulcanization rate of the raw rubber, so that the rubber material has good high temperature resistance and chemical corrosion resistance. In addition, a reactive antiager in the form of chemical bond can be combined on the main chain of rubber polymer to effectively improve the aging resistance performance and durability performance; and the compound naphthenic oil and coumarone resin as plasticizers can effectively reduce the smell of rubber products, and enhance the thermal stability and vibration isolation performance.

Description

technical field [0001] The invention relates to the technical field of automobile rubber products, in particular to a high-temperature-resistant and anti-aging exhaust pipe lug and a preparation method thereof. Background technique [0002] Exhaust system is one of the important parts of modern automobiles, which plays a very important role in purifying exhaust emissions and absorbing engine exhaust excitation noise. As the bearing and vibration isolation part of the exhaust system, the exhaust pipe hanger mainly plays the role of suspending the exhaust system and isolating the excitation from the exhaust system from the vehicle body. With the lightweight design of the body, the front engine-front-wheel drive and the widespread use of four-cylinder engines with poor balance, and the exhaust system is in high temperature and muddy environments, due to the extension of the use time, the rubber body will inevitably It will cause aging deformation, etc., and the overall perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L15/00C08L51/04C08L45/02C08K13/02C08K3/06C08K5/14C08K3/04C08K5/01C08K5/3492C08K5/3415
CPCC08L23/16B29C35/02C08K2201/014C08L2201/08C08L2205/035C08L15/00C08L51/04C08L45/02C08L91/00C08K13/02C08K3/06C08K5/14C08K2003/2296C08K5/09C08K3/04
Inventor 夏迎松杨兆伟任金水赵伟陈晓锋
Owner ANHUI ZHONGDING SEALING PARTS
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