Peroxide cure fluorine-containing acrylic acid ester rubber and preparation thereof

Abstract

The invention discloses novel peroxide cure fluorine-containing acrylic acid ester rubber and preparation thereof, comprising the following compositions, by weight, 70 parts to 92 parts of an acrylic acid ester monomer, 0 part to 5 parts of a auxiliary sulfuration monomer, 5 parts to 20 parts of a fluoro-containing alkene monomer, 3 parts to 10 parts of an alkene monomer that can be vulcanized with peroxide, 0.1 parts to 0.3 parts of an initiator, 3 parts to 5 parts of an emulsifier, and 0.1 parts to 0.2 parts of a conditioning agent. The preparing method comprises the steps of: (1) adding base material to a reaction kettle, and allowing the base material to react for 4 to 8 hours at a temperature of 70 DEG C to 80 DEG C for obtaining fluorine containing polypropylene copolymer emulsion; (2) diluting the obtained emulsion by 2 to 4 times, adding electrolyte for coacervation, and drying the coacervation product after the coacervation product is washed. The invention provides the novel peroxide cure fluorine-containing acrylic acid ester rubber and preparation thereof, the rubber having both characteristics of fluorubber and acrylic acid ester rubber, and the novel rubber has the advantages of no corrosion of dies during production, commendable processing and physical properties, high safety coefficient in production, environmental protection, high comprehensibility, oil resistance and high temperature resistance.

Description

technical field [0001] The invention relates to the field of rubber synthesis, in particular to a peroxide vulcanized fluorine-containing acrylate rubber and a preparation method thereof. Background technique [0002] Fluorine rubber has excellent oil resistance, high temperature resistance and medium resistance, and is widely used in high-tech fields such as aerospace and aviation. However, it is difficult to process and expensive. It is easy to process and cheap. At present, the method of blending acrylic rubber and fluororubber is often used to combine the properties of both. It is easy to corrode the mold during processing, and has a large permanent deformation during high temperature compression. It has the ability to corrode the mold during processing. High-temperature compression permanent deformation is large, processing and physical properties are poor, the safety factor of the production process is low, it is not environmentally friendly, and it cannot have the cha...

AI Technical Summary

Problems solved by technology

[0002] Fluorine rubber has excellent oil resistance, high temperature resistance and medium resistance, and is widely used in high-tech fields such as aerospace and aviation. However, it is difficult to process and expensive. It is easy to process and cheap. At present, the method of blending acrylic rubber and fluororubber is often used to combine the properties of both. It is easy to corrode the mold during processing, and has a large permanent deformation during high temperature compression. It has the ability to corrode the mold during processing. High-temperature compression permanent deformation is large, processing and physical properties are poor, the safety factor of the production process is low, it is not environmentally friendly, and it cannot have the characteristics of both fluororubber and acrylic rubber.