Skeleton oil-resistant sealing gasket is a kind of sealing parts made of butadiene recycled rubber, which does not require metal skeleton support, can maintain good sealing performance in high temperature and high pressure environment, has excellent oil resistance, and can maintain the stability of the material for a long time. As an important sealing material, oil-resistant sealing gaskets are widely used in automobiles, aerospace, mechanical equipment and other fields, undertaking sealing protection, vibration and noise reduction, dust and waterproof functions. In recent years, the global attention to environmental protection development continues to increase, the rubber industry also actively responds to the call of green manufacturing, promote rubber waste recycling, with the rapid development of industry and technological progress, butadiene recycled rubber has become an important engineering material. The skeleton oil-resistant sealing gasket is one of the important applications of niqing recycled rubber, which has excellent sealing performance and oil resistance.
As a rubber waste recycling product, butadiene recycled rubber has good elasticity, wear resistance and anti-aging properties. In the field of sealing gaskets, the combination of butadiene recycled rubber and butadiene raw rubber can effectively reduce costs and reduce resource consumption, while improving product sustainability and environmental protection. In the formulation design, combined with the selection of additives and proportional control, the oil resistance and sealing performance of butadiene reclaimed rubber can be further improved.
Hongyun Dingqing reclaimed rubber produces skeleton oil-resistant sealing gasket vulcanization formula
20kg of nitrile regenerated rubber, 5kg of 3305 nitrile rubber, Zinc oxide 0.7kg, stearic acid 0.4kg, polyethylene glycol 0.6kg, paraffin 0.2kg, dicaprylyl 2.2kg, light calcium carbonate 5kg, N550 carbon black 4kg, anti-scorch agent 0.5kg, RD antioxidant 0.15kg, CZ accelerator 0.12kg, DM accelerator 0.11kg, TMTD accelerator 0.05kg, sulfur 0.3kg, vulcanization temperature 150 °C, YYE3-7-10 vulcanization time determined according to thickness.
HY butadiene reclaimed rubber produces skeleton oil-resistant sealing gaskets without skeleton, rubber refining and vulcanization process
Add butadiene reclaimed rubber and butadiene original gum, filler, plasticizer, antioxidant, anti-scorch agent, etc. to the mixer for mixing, the temperature should not exceed 90 °C, and the time should be controlled in 3-5 minutes; Put the mixed rubber into the mill to add accelerator, vulcanizing agent, repeatedly cut the knife and beat the triangle bag and quickly put down the sheet, the temperature of the mill is controlled at about 60 °C, easy to operate, the temperature is too high, it is easy to scorch or the rubber is aging. After the rubber mixture is parked until it is cooled naturally, the strip is cut, an appropriate amount of rubber mixture is selected and put into the mold, and the vulcanization is solidified into a stable polymerization structure by the heating and pressure of the plate vulcanizing agent. The vulcanized and cured sealing gasket is deburred, trimmed and other post-processing processes to ensure the appearance quality and dimensional accuracy of the product. Through the above production process, the skeleton oil-resistant sealing gasket produced by butadiene recycled rubber has good performance and stability, and can meet the sealing needs of various industrial fields.
It can be seen from the above vulcanization formula and process of producing skeleton oil-resistant sealing gaskets without skeleton reclaimed rubber that butadiene reclaimed rubber has excellent physical properties and chemical stability, while the non-skeleton oil-resistant sealing gasket can maintain good sealing performance and oil resistance in harsh environments; Through reasonable vulcanization formulation and process adjustment, high-quality skeleton-free oil-resistant sealing gasket products can be produced. Strengthening the research and application of butadiene reclaimed rubber will provide strong support for the development of sealing technology in the engineering field.
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