Fiber Materials / Alfa Chemistry
Online Inquiry

Reaction Spinning Technical Service

Reactive spinning refers to a spinning method in which the spinning fluid is extruded from the spinneret, and its solidification and forming speed is controlled by a chemical reaction. Alfa Chemistry has mature reaction spinning technology and process, and is committed to providing customers with reaction spinning technology services to meet your innovative fiber research needs. Our fiber manufacturing division has a strong infrastructure and a team of well-trained and experienced experts.

Our Capabilities

Reaction spinning technology is a spinning method that combines the process of turning monomers or oligomers into polymers and the process of fiber formation. Combining rich experience, Alfa Chemistry provides professional reaction spinning technology services, as well as detailed characterization and test reports according to project requirements. Our service capabilities include but are not limited to the following:

  • Optional Reaction Spinning Method
    Reactive spinning methods can be further subdivided according to the stage of the spinning process at which the chemical reaction occurs: interfacial spinning, i.e., fiber formation during interfacial polycondensation; fiber formation during free-radical bulk polymerization (or polycondensation); fiber formation by the interaction of the polymer with the curing agent in the coagulation bath.

Optional Spinning Technology

  • Optional Spinning Technology
    Reaction spinning technology is usually applied in combination with other spinning technologies, such as solution spinning, dry spinning, electrospinning, etc. For example, electrospinning polyacrylonitrile (PAN) solution and titanium isopropoxide solution through a coaxial electrospinning device can prepare PAN fibers coated with titanium hydroxide layer with a core-shell structure. The titanium hydroxide layer is formed by the hydrolysis reaction of titanium isopropoxide. After further heat treatment, TiO2 particle-coated carbon fibers can be obtained, which can be applied to photoelectric energy conversion. [1]
  • Optional Spinning Polymer
    Various polymers are available, such as polyurethane, polyimide, polyacrylonitrile, and polystyrene, etc. Taking the preparation of polyurethane elastic fibers as an example, when the prepolymer solution is squeezed into the coagulation bath in a thin stream, it reacts rapidly with the chain extender (diamine or diol) in the coagulation bath to form polymer fibers.

Process Flow of Polyurethane Elastic FiberProcess Flow of Polyurethane Elastic Fiber

  • Nanocomposite Fiber Customization
    Some innovative nanofibrous materials can be customized by reactive spinning techniques, such as silica aerogel fibers, nanocomposite gel fibers, etc. If you have a special idea, we will do our best to help you turn it into reality.

Cooperate With Us

We are confident that, by working with us, you will be satisfied with our expertise in the production and characterization of reaction spinning technical service. We pride ourselves on our strengths in:

  • Experienced testing and research team
  • Meet customer needs at all stages
  • Efficient and cost-effective services
  • Complete and advanced infrastructure


  1. Leonardo Yuan, et al. Fibers, 2019, 7(5), 49.

Our products and services are for research use only.