Preparing method for europium-base multiple-ligand vulcanizing accelerator

Abstract

The invention discloses a europium-base multiple-ligand vulcanizing accelerator and a preparing method thereof. Europium is the rare earth element in synthesis, and 4 kinds of ligands are included, wherein the ligands 1 and 2 are accelerator groups with excellent vulcanizing acceleration effects, the ligand 3 is stearic acid improving solubleness of the accelerator in a rubber material, and the ligand 4 is citric acid forming strong coordination with the rare earth element. The method is simple and feasible, requires no protection of inert gases, is mild in the preparation condition and generates no harmful gas; the multiple-ligand rare earth vulcanizing accelerator has excellent solubleness in rubber, the vulcanization and scorch time is long, the vulcanization curve is excellent in flatness, and no toxicity, odor or pollution is generated; the accelerator substituting the conventional frequently used system adopting zinc oxide, stearic acid and accelerator together can be applied to high-performance tires and other rubber products.

Description

technical field [0001] The invention relates to a synthesis method of a europium-based multi-ligand vulcanization accelerator and research on its vulcanization acceleration effect. This accelerator does not need zinc oxide and stearic acid as an activator, and has the advantages of saving the feeding process, clean and pollution-free, good vulcanization flatness, and easy to uniformly disperse in rubber. The rubber composite material prepared by using this accelerator has the advantages of Good performance uniformity. Background technique [0002] The vulcanization system of rubber is a complete vulcanization system composed of accelerators, activators, and vulcanizing agents. Among them, the accelerator is a chemical substance that can shorten the vulcanization time, lower the vulcanization temperature, reduce the amount of vulcanizing agent, and improve and improve the physical and mechanical properties and chemical stability of the vulcanized rubber. Just because accele...

AI Technical Summary

Problems solved by technology

This kind of accelerator effectively improves the disadvantage of poor solubility in rubber of traditional vulcanization accelerator systems, simplifies the feeding process, and is clean and pollution-free

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