Polyurethane material containing metal organic framework and preparation method thereof

By introducing a metal-organic framework into polyurethane materials and using a distillation process to introduce polyethylene glycol into its channels, the problem of uneven dispersion of inorganic particles was solved, and the excellent dispersibility and mechanical properties of polyurethane materials were improved.

CN122103871APending Publication Date: 2026-05-29YANGZHOU UNIV
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Patent Information

Application Number
CN202610151200.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-03
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Uneven dispersion of inorganic functional particles in polyurethane materials leads to agglomeration, which reduces the mechanical properties of the material.

Method used

Polyethylene glycol (PEG) is introduced into the channels of a metal-organic framework (MOF) through a distillation process to participate in polyurethane synthesis. Through prepolymerization and chain extension reactions, the MOF is uniformly dispersed in the polyurethane chain. The dispersibility and mechanical properties are improved by utilizing the channel structure of MOF and the entanglement effect of PEG.

Benefits of technology

It significantly improves the dispersion of inorganic particles in the polyurethane matrix, with tensile strength increasing by 92.3%-283.1%, resulting in a significant improvement in mechanical properties.

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Abstract

The invention discloses a polyurethane material containing a metal organic framework and a preparation method thereof, the polyurethane material comprises a polyurethane matrix and the metal organic framework uniformly dispersed in the polyurethane matrix, and the content of the metal organic framework is 2-6 wt%. And the metal organic framework is UiO-66. The preparation method comprises the following steps: (1) mixing polyethylene glycol, a metal organic framework and a first solvent, removing the first solvent by using a distillation process, and introducing polyethylene glycol into pores of the metal organic framework to obtain PEG (MOF); (2) mixing polyethylene glycol, diisocyanate and PEG (at) MOF, adding a catalyst, and carrying out a prepolymerization reaction; and (3) adding 1, 4-butanediol and a catalyst, carrying out a chain extension reaction, adding a second solvent, and drying to obtain the polyurethane material. In the step (1), the mass ratio of polyethylene glycol to the metal organic framework is 1: (1-3). The polyurethane material provided by the invention can achieve the effects of excellent dispersity and excellent mechanical properties.
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