Self-lubricating rubber leather diaphragm material and preparation method thereof

Abstract

The invention discloses an engine suspending heat-resistant material and a preparation method thereof. The heat-resistant material comprises the following components in part by weight: 70 to 80 parts of styrene-butadiene rubber, 10 to 20 parts of 3-polybutadiene rubber, 3 to 4 parts of zinc oxide, 1 to 3 parts of stearic acid, 1 to 3 parts of 2,2,4-trimethyl-1,2-dihyaroquinoline polymer, 2 to 4 parts of N-isopropyl-N-phenyl-p-phenylenediamine, 5 to 9 parts of oleamide, 5 to 8 parts of polyethylene wax, 30 to 50 parts of high abrasion furnace black, 20 to 40 parts of fast extruding furnace black, 1 to 3 parts of 4',4-dithio morpholine, 1 to 3 parts of tetramethylthiuram disulfide, and 3 to 5 parts of N-cyclohexyl-2-benzothiazole sulfonamide. A fatigue-resistant self-lubricating rubber leather diaphragm material with high high-temperature and low-temperature resistance is prepared by a special refining process, and the material has the advantages of long service life, high production efficiency and low cost.

Description

technical field [0001] The invention relates to a modified rubber part, in particular to a self-lubricating rubber film material and a preparation method thereof. Background technique [0002] The booster is a key part of the car brake, which can provide 6-8 times the brake boost when braking, and reduce the driver's braking force, which plays an extremely important role in the safety of the car. The film is one of the most important parts in the booster. It divides the vacuum booster into two chambers, one part is connected to the atmosphere, and the other part is connected to the engine intake pipe through a pipeline. It uses the principle of sucking air when the engine is working, resulting in One side of the booster is vacuum, and the pressure difference relative to the normal air pressure on the other side is used to strengthen the braking thrust. Even if there is a small pressure difference on both sides of the membrane, due to the large area of ​​the membrane, it can ...

AI Technical Summary

Problems solved by technology

The film is one of the most important parts in the booster. It divides the vacuum booster into two chambers, one part is connected to the atmosphere, and the other part is connected to the engine intake pipe through a pipeline. It uses the principle of sucking air when the engine is working, resulting in One side of the booster is vacuum, and the pressure difference relative to the normal air pressure on the other side is used to strengthen the braking thrust. Even if there is a small pressure difference on both sides of the membrane, due to the large area of ​​the membrane, it can still A large thrust is generated to push the diaphragm to move to the end with less pressure, and long-term movement will cause the membrane to rupture

The efficacy of traditional film products is not high enough, and the production efficiency is low, which cannot meet the needs of consumers, and the progress is slow

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