A kind of fluorine rubber compound with low temperature flexibility and high wear resistance and preparation method

Abstract

The invention relates to a fluororubber compound rubber with low temperature flexibility and high wear resistance and a preparation method thereof. The raw materials for preparing the compound rubber include: main ingredients: fluororubber modified low temperature raw rubber, fluororubber raw rubber, graphene master material; auxiliary agent: modified polyphenylene tetrafluoro powder; wherein, the fluororubber modified low-temperature raw rubber is a low-temperature raw rubber with a vulcanization point monomer; the modified polyphenylene tetrafluoro powder is The polyphenylene ester and the tetrafluoro micropowder are obtained through modification in the presence of a silane coupling agent; the graphene master batch is a graphene master batch of raw rubber based on ternary rubber. By adding modified raw rubber and new additives in a mixing ratio, the fluorine rubber compound obtained by using a special mixing method and vulcanization process improves the low-temperature performance of the rubber compound and improves the wear resistance of the rubber compound at low temperatures. Performance and mechanical properties, while meeting the application as a low-temperature sealing material, it can replace foreign products.

Description

technical field [0001] The invention relates to the field of fluororubber preparation, in particular to a fluororubber compound with low temperature flexibility and high wear resistance and a preparation method. Background technique [0002] In the rubber industry, fluorine rubber has incomparable excellent properties of other rubbers. It is a new type of polymer material with excellent heat resistance, medium resistance and oil resistance, as well as good physical and mechanical properties, electrical insulation and radiation resistance. Sex, etc., known as the "King of Rubber". It is widely used in automobile manufacturing, petrochemical, machinery manufacturing, aerospace, construction engineering and other fields. [0003] Vinylidene fluoride-hexafluoropropylene (VDF-HFP), vinylidene fluoride-chlorotrifluoroethylene (VDF-CTFE), vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene (VDF-HFP-TFE), tetrafluoroethylene Fluoroethylene (TFE)-perfluoro(alkyl vinyl ether...

AI Technical Summary

Problems solved by technology

[0006] Chinese patent CN103087450A is a rare earth complex modified cold-resistant fluororubber compound and its preparation method, which is composed of fluororubber raw rubber, rare earth complexes, acid absorbing agents, reinforcing fillers, vulcanizing agents, accelerators, etc. Cold-resistant fluororubber, which is characterized by good cold resistance, but does not mention the wear resistance under cold resistance

[0008] Chinese patent CN1919921, high hardness fluororubber compound with low temperature flexibility, proposed by polyfluoroolefin terpolymer, active magnesium oxide, ultrafine calcium oxide, benzyl triphenylphosphine chloride, fluorine wax, reinforcing agent , active agent, bisphenol AF, plasticizer, peroxide, cross-linking aid, etc., is a kind of low-temperature flexible high-hardness fluororubber compound, which can be used in the range of -45~250℃, but no special proposal is made Wear resistance

[0009] So far, no combination of excellent low temperature performance under wear conditions has been developed in the prior art

Images