Microencapsulation Technology

Microencapsulation Technology

It is a rapidly developing and efficient flame retardant treatment technology. Alfa Chemistry enables the design and development of innovative flame retardants through microencapsulation technology.


What Is Microencapsulation?

Microencapsulation refers to encapsulating substances in tiny containers ranging from several microns to hundreds of microns, so as to protect and control release.

The capsule material does not chemically react with the encapsulated flame retardant. When the product is exposed to high heat in a fire, the capsule wall will melt and rupture immediately, thereby releasing the flame retardant.

Microencapsulation plays an important role in improving the form and efficacy of flame retardants and reducing environmental pollution.

Advantages of Microencapsulation of Flame Retardants

Advantages of Microencapsulation of Flame Retardants

  • Reducing the water solubility of flame retardants
  • Increasing the compatibility of flame retardants in polymers
  • Changing the appearance and physical state of flame retardants
  • Increasing the pyrolysis temperature of flame retardants
  • Preventing the release of toxic gases

What Can We Do?

  • Combined with the rich flame retardant design experience of Alfa Chemistry material chemists, we can develop innovative flame retardants for customers using microencapsulation technology.
  • The materials that can be selected for the capsule material of flame retardant microcapsules are mainly divided into two categories, namely natural polymer materials, such as animal glue, various proteins, starch, cellulose, etc.; synthetic polymers, such as polyvinyl alcohol, polyvinyl chloride, polyamide, polyester, epoxy resin, etc. Our materials chemists rely on their experience and knowledge to provide you with expert selection advice.
  • To ensure that flame retardants meet a wide range of flammability requirements, comprehensive of performance characterization and analysis, especially for flame retardant performance, is also considered. For flame retardant microcapsules, physical properties such as size, wall thickness, strength, and flame retardant release are also important design and analysis parameters.
  • During the research and development process, our material chemists will fully communicate with customers to understand your needs and ensure satisfactory flame retardant solutions.

Why Choose Alfa Chemistry?

Experienced team of materials chemists

Leading flame retardant technology

Reliable quality and standards

Fast turnaround times and great prices

Comprehensive and systematic testing and analysis services

Research Information

Microencapsulated intumescent flame retardant

Bibo Wang et al. prepared silane precursor microencapsulated intumescent flame retardant (IFR) by sol-gel process, and studied its effect on the properties of EVA. The results show that the silane precursor microencapsulation technology enhances the interfacial adhesion, mechanical, electrical, thermal stability and flame retardancy. [1]

Schematic diagram of preparation of silane precursor microcapsule intumescent flame retardantSchematic diagram of preparation of silane precursor microcapsule intumescent flame retardant [1]

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  1. Bibo Wang, et al. (2012). "Preparation of silane precursor microencapsulated intumescent flame retardant and its enhancement on the properties of ethylene–vinyl acetate copolymer cable," Composites Science and Technology 72(9), 1042-1048.
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