Method for preparing oxidic polyethylene wax microemulsion

Abstract

The invention discloses a method for making oxidized polyethlene wax microemulsion. The method is characterized in that the heterogeneous 13-carbon fatty alcohol polyoxyethylene ether and a secondary alcohol ethoxy compound 15-S-9 are remixed, at the same time a small amount of additive of potassium hydrate and sodium hydrosulfite is added, at a high temperature and high pressure, the oxidized polyethlene wax is emulsified into microemulsion. The method can emulsify the oxidized polyethlene wax with high melting point and high hardness such as Hi-Wax 4202E and Hi-Wax 4051E of Mitsui company and AC-629 of Honeywell company into microemulsion; the product emulsion process does not adopt APEO surface active agent which is forbidden by REACH legislation; therefore, the product protects the environment; and the emulsion method of the oxidized polyethlene wax fills domestic blank, the product performance is up to the advanced world standard.

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