Anti-cracking seal rubber material and preparation method thereof

Abstract

The invention discloses an anti-cracking seal rubber material which is prepared from the following raw materials in parts by weight: 2-4 parts of magnesium sulfate, 1-3 parts of barium metaborate, 0.3-1 part of bisphenol a diglycidyl ether, 2-4 parts of alkyl ketene dimer, 3-4 parts of anti-aging agent TNP, 26-30 parts of butyl methacrylate, 10-14 parts of graphene oxide, 1-2 parts of sodium borohydride, 3-4 parts of sulfanilic acid, 14-20 parts of 0.8-1 mol / L hydrochloric acid, 0.3-0.5 part of potassium persulfate, 0.5-1 part of hydrazine hydrate, 210-300 parts of cis-1,4-polybutadiene rubber, 1.7-2 parts of vulcanizing agent PM, 1-2 parts of tin monosulfide, 3-4 parts of glyceryl carboxylate, 2-3 parts of polyamide wax micropowder, 0.7-1 part of 4-dimethylaminopyridine, 10-14 parts of wollastonite powder and 0.7-1 part of silane coupling agent kh560. The rubber material has the advantages of favorable sealing property, high surface strength, favorable addition property, high cracking resistance and high impact resistance.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a crack-resistant sealing rubber material and a preparation method thereof. Background technique [0002] Graphene-based polymer nanocomposites are considered to be the most promising fields for graphene applications. The main reason is that on the one hand, the products of polymer materials play an increasingly important role in people's lives, and have surpassed inorganic non-metallic materials and metal materials to become the most used materials in people's lives; on the other hand, graphene and Its derivatives, blackene oxides, each have a unique two-dimensional structure and excellent performance, and are ideal fillers. Currently, there are three main preparation methods for the preparation of graphene / polymer composites: flame-melt blending, solution blending, and in-situ polymerization. These three methods have their own advantages and disadvantages: melt blend...

AI Technical Summary

Problems solved by technology

However, at present, the functionalization method of graphene is not very mature and needs to be further improved. In order to realize its industrialization, in-depth research is needed, especially how to use covalent and non-covalent bond modification methods to have special structures and properties. Combining chemical molecules with graphene to give full play to the advantages of both is the focus of current research; it has been found that the main problem in the process of preparing graphene oxide / polymer composites is that graphene oxide is easy to agglomerate, and in The dispersion in the polymer is not uniform, and the bonding interface between graphene oxide and polymer is not good, which ultimately leads to the low comprehensive performance of graphene oxide / polymer composites, which limits its further industrial application.