Preparation method of oxidized polyethylene wax microemulsion

Abstract

The invention discloses a preparation method of oxidized polyethylene wax microemulsion, which is characterized in that it adopts isomeric tridecyl fatty alcohol polyoxyethylene ether and secondary alcohol ethoxylate compound 15-S-9 compounded, and simultaneously adds A small amount of additives such as potassium hydroxide and sodium bisulfite are added to emulsify the oxidized polyethylene wax into a microemulsion under high temperature and high pressure. The present invention can emulsify the oxidized polyethylene wax of high melting point, high hardness such as Hi-Wax 4202E of Japan's Mitsui Company, Hi-Wax 4051E, AC-629 of U.S. Honeywell Company into a microemulsion, not used in the product emulsification process The nonylphenol polyoxyethylene ether (APEO) surfactant banned by EU regulations (REACH regulations) is a green and environmentally friendly product. The emulsification method of the oxidized polyethylene wax will fill the domestic gap, and the product performance will reach the international advanced level .

Description

technical field [0001] The invention relates to the technical field of production of oxidized polyethylene wax, in particular to an emulsification method of oxidized polyethylene wax. Background technique [0002] Oxidized polyethylene wax is a modified wax product containing some polar groups such as carboxyl and hydroxyl groups. It is a solid powder or granule. It has the original polishability, self-repairability, and anti- Scratch resistance and durability, plus it is non-toxic, non-corrosive, and chemically stable. If it can be emulsified into microemulsion, its use will be more extensive. At present, oxidized polyethylene wax has been produced and applied abroad, but it is mainly used as PVC plastic, polypropylene fiber masterbatch, polyolefin plastic, profiled material, and pipe processing. Dispersants or release agents, or used in ink, paper and other industries, and the emulsification of oxidized polyethylene wax into microemulsions and then applied to textile prin...

AI Technical Summary

Problems solved by technology

Even if there are such products in the domestic market, they are produced by large international companies such as Ciba and Clariant. However, the emulsion particle size of these products collected is relatively large, the appearance is milky white, and the stability is poor. The experiment found delamination, and more importantly, the collected emulsion products contained APEO surfactants banned by EU regulations (REACH regulations), so the customer acceptance was low

Moreover, there are few reports on the emulsification preparation and application research of such products in China. The main reason is that the oxidized polyethylene wax has a large molecular weight and a high degree of non-polarity, so it is difficult to exist stably even if it is emulsified. demulsification