A kind of porous nanomaterial blend modified membrane and preparation method thereof

A nanomaterial, blending modification technology, applied in the field of membrane materials, can solve the problems of low pure water flux of separation membrane materials
CN109351201BActive Publication Date: 2021-06-08HENAN INST OF ENG
3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HENAN INST OF ENG
Publication Date
2021-06-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a porous nanomaterial blended modified membrane and a preparation method thereof, and relates to the technical field of membrane materials. It includes the following steps: S1. Blending: 10-25% of polyvinylidene fluoride / polyethersulfone, 3-15% of polyvinylpyrrolidone, 0.2-2% of porous nanomaterials and 70-80% of bismuth Methyl acetamide weighs raw materials, then fully mixes, stirs, and stands still to obtain a casting solution; the porous nanomaterials include fumed white carbon black, nano sepiolite and nano attapulgite; S2. Membrane making: the casting After the membrane solution is cooled to room temperature, the membrane is formed and dried to prepare a porous nanomaterial blended modified membrane. The porous nanomaterial blend modified membrane prepares the corresponding membrane material by modifying the porous nanomaterial fumed silica, nano sepiolite and nano attapulgite, which greatly increases the pure water of the polymer membrane material. flux and improved mechanical properties.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The present invention relates to the field of membrane material, and more particularly to a porous nanomaterial blend modified film and a preparation method thereof. Background technique

[0002] With the needs of people's production and the development of global science and technology, membrane materials have developed through the first simplest packaging film to polymer functional films. It has been applied in the field of air purification, sewage wastewater treatment, sea water, and manufacturing artificial organs. In the 40 years of reform, my country's industrial development is very rapid, among the world's manufacturing great powers, with the development of the economy, the pollution generated during production also increases. Since the national manufacturing involves various fields, the size of the substance that causes contaminated substance is getting wider and wider, some are too tens of microns, and some are small to dozens of nanometers, such a ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More