Toner dryer, coating machine, coating modification machine, honeycomb mill

Release time:

2024-10-05 09:17

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Toner modification refers to the process of treating carbon powder through a series of physical or chemical means to improve its physical and chemical characteristics to meet the needs of specific applications.

Purpose of toner modification

  1. Enhanced compatibility：Through modification, the toner and the matrix.(such as organic polymers, resins, etc.) to enhance the compatibility, improve its dispersion in the matrix.
  2. Improve performance：Modification can improve the mechanical strength of toner2 Wear resistance, heat resistance, conductivity and other comprehensive properties to adapt to different application scenarios.
  3. directional regulation：Through specific modification technology, the surface structure characteristics and chemical properties of carbon powder can be controlled to meet specific performance requirements.

The method of toner modification

1. Physical modification：

Mechanical grinding：The carbon powder is milled by mechanical force to refine the particle size and increase the specific surface area, thereby improving its dispersibility and reactivity.

Heat treatment：The treatment of carbon powder at high temperature can remove surface impurities, improve crystal structure, and improve conductivity.

  1. chemical modification：

surface oxidation modification：Use of strong oxidants(such as nitric acid, hydrogen peroxide, ozone, etc.) on the surface of carbon powder oxidation treatment, increase the content of surface oxygen-containing functional groups, enhance the surface polarity, improve its polar substances and metal ions adsorption performance. This method is often used for surface modification of activated carbon.

surface coating modification：Toner with modifier(such as resin, polymer compounds, etc.) mixed, through physical or chemical action on the surface of the carbon powder to form a layer of coating. This coating layer can improve the compatibility of the carbon powder with the matrix and improve its dispersibility in the matrix. For example, in the toner mixing and modifying machine, the fine powder preheated to discharge moisture is quickly heated to a certain temperature, and then the modifier is atomized into the modification chamber through a special nozzle, and the atomized powder particles are fully contacted to form a coating layer.

Industrial mass production, commonly used machinery and equipment"Honeycomb mill" for processing,Honeycomb mill is specially developed for the production of ultra-fine powder with strict requirements on particle size distribution. It advocates depolymerization and then drying, and synchronous surface coating treatment.The cladding process isThrough the wind sweeping system willTonerFully break up and atomize the modifier.TonerSurface, the formation of a single nano-coating film, in order to complete the modification process. Covering rate up99.2%, the activation rate was 99.8%.

The modified toner has a wide range of applications, including but not limited to the following aspects：

1. Printing consumables：The modified toner can improve print quality, such as color reproduction, clarity, etc., and is widely used in printing equipment such as laser printers and copiers.

2. Coatings and inks：Modified carbon powder can be used as a pigment component of coatings and inks to improve the weather resistance, abrasion resistance of coatings and the printing performance of inks.

3. Conductive materials：The modification gives the carbon powder conductivity and can be used to prepare conductive materials such as conductive coatings and conductive adhesives.

4. Composite materials：Modified carbon powder can be used as a reinforcing phase added to the resin, rubber and other matrix, the preparation of high-performance composite materials, improve the mechanical properties of materials, heat resistance and so on.

 

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