A kind of neodymium-based multi-ligand vulcanization accelerator and preparation method thereof

Abstract

The invention discloses an Nd-based multi-ligand vulcanization accelerator and a preparation method thereof. In synthesis, an Nd element is used as a rare earth element, and four ligands are contained; the ligand 1 and the ligand 2 are accelerator radicals with good vulcanization acceleration effects, the ligand 3 is triethanolamine capable of improving the solubility of the accelerator in a sizing material, and the ligand 4 is acrylic acid capable of forming strong coordination with the rare earth element. The preparation method is simple, convenient and feasible, does not need inert gas shielding, is mild in preparation process condition, and has no harmful gas generation. The multi-ligand rare earth vulcanization accelerator has good solubility in rubber, and is long in vulcanization and scorching time, good in vulcanization curve flatness, non-toxic, odorless and pollution-free. The vulcanization accelerator can replace a currently used zinc oxide, stearic acid and accelerator combination system, and is applicable to high performance tires and other rubber products.

Description

Technical field [0001] The invention relates to a synthesis method of a neodymium-based multi-ligand vulcanization accelerator and the study of its vulcanization acceleration effect. This kind of accelerator does not need zinc oxide and stearic acid as activators. It has the advantages of saving feeding process, clean and pollution-free, good vulcanization flatness, and easy uniform dispersion 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. The accelerator is a chemical substance that can shorten the vulcanization time, reduce 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. Because accelerators can improve the...

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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