Preparation method of bisphenol phosphate hydroxyl aluminum salt nucleating agent

Abstract

The invention relates to a preparation method of a bisphenol phosphate hydroxyl aluminum salt nucleating agent. The preparation method comprises following steps: a bisphenol phosphate hydroxyl aluminum salt is prepared by taking organic aluminum alkoxide as a raw material; wherein a bisphenol phosphate and sodium hydroxide are subjected to a neutralization reaction to prepare bisphenol phosphate sodium salt, the bisphenol phosphate sodium salt and an inorganic aluminum salt are subjected to a double decomposition reaction to prepare the bisphenol phosphate hydroxyl aluminum salt. According tothe preparation method, a two-step reaction is replaced by a phosphate and organic aluminum alkoxide one-step reaction to synthesize the bisphenol phosphate hydroxyl aluminum salt, the production process is simplified, the production efficiency is improved, the reaction time is shortened, the product quality is improved, no salt-containing wastewater is generated in the production process, and theproduction process is environmentally friendly.

Description

Technical field [0001] The invention relates to the technical field of polymer nucleating agents, in particular to a preparation method of a bisphenol phosphate hydroxyaluminum salt nucleating agent. Background technique [0002] The aryl phosphate salt type polypropylene α crystal nucleating agent, compared with the traditional α crystal nucleating agent, can give polypropylene resin good rigidity, transparency, surface gloss and resistance at a relatively low concentration. Thermal deformation. The aryl phosphate salt has good compatibility with the matrix resin, is easy to disperse, and is resistant to extraction. It can be widely used in modified products such as high-rigidity PP special materials, transparent injection molding products, automotive PP accessories and disposable syringes. In addition, it also has a good nucleation effect on engineering plastics such as PET, PBT, and PA. Chinese patents CN201610873241.6, CN201110151387.7 and CN20111051413.6 disclose processes...

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Problems solved by technology

[0003] The preparation of bisphenol phosphate hydroxyaluminum salt by the above-mentioned prior art all uses bisphenol phosphate to neutralize with alkali to prepare bisphenol phosphate sodium salt, and then carry out metathesis reaction with inorganic aluminum salt to prepare bisphenol phosphate hydroxyaluminum salt. The first-step reaction is a heterogeneous reaction, the reaction speed is slow, the reaction time is long, the product purity is low, there are a large amount of aluminum-substituted by-products, and salty wastewater will be produced

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