Nanjing Chemical Material Corp.
Service
Products

Versatile Expandable Microspheres China Versatile Expandable Microspheres China

Expandable Microspheres China (Thermally expandable microspheres) are thermoplastic expandable microspheres, a type of thermal expansion microcapsule with a core-shell structure. They are composed of a thermoplastic polymer shell encasing a low-boiling solvent (liquid alkane gas or other compounds). Their diameter is generally between 10 and 50 μm. Upon heating, their volume can expand rapidly to several times their original size. After cooling, the microspheres can maintain their expanded volume without shrinking back.Expandable Microspheres China, as an ideal lightweight filler and physical foaming agent, have been widely used in various fields.


Characteristics of Expandable Microspheres China


Good Mechanical Properties


No open-cell pores, avoiding the issues of uneven pores, rupture, and poor resilience associated with ordinary foaming agents. Their complete spherical structure ensures good mechanical properties.


Excellent Elasticity


The thermoplastic shell has excellent pressure resistance, capable of withstanding up to 300kg/cm2 of pressure. Expandable Microspheres China have good resilience that can withstand multiple cycles of pressure application and release without breaking.


Excellent Foaming Performance


After foaming, the volume can reach 40-80 times the original size. Expandable Microspheres China have an independent closed-cell structure that remains intact after foaming, with relatively uniform pore size, resulting in stable foaming performance.


Environmental Performance


Ordinary foaming agents may produce odors and residual volatiles during use and curing, whereas Expandable Microspheres China are non-toxic and non-polluting, providing safer performance. They can be used as environmentally friendly foaming agents in high-end and high-added-value products.


Insulation Properties


Expandable Microspheres China form an inflated, sealed cavity after thermal expansion, providing excellent insulation properties. When added to polyurethane, phenolic resin, coatings, and other materials, they offer superior thermal insulation, sound insulation, vibration damping, flame retardancy, and electrical insulation effects.


Application Fields of Expandable Microspheres China


Impregnation Process


They can be used for processing non-woven fabrics. By mixing Expandable Microspheres China with resin materials to form a slurry and impregnating it into non-woven or fiber materials, followed by drying and foaming, thickness can be increased, or lightweight materials can be formed.


Lamination Process


Adding Expandable Microspheres China to sandwich materials can give composite materials elasticity, reduce density without reducing strength, making them excellent lightweight filling materials.


Coating Process


In coatings, Expandable Microspheres China can increase coating thickness and improve surface characteristics after coating, drying, and heating to foam, such as creating a three-dimensional effect, suede effect, matte texture, etc.


Casting Molding


Expanded microspheres can be mixed with many thermosetting resins to make low-density molded products, such as silicone, unsaturated resin, epoxy resin, phenolic resin, etc.


Injection Molding


For example, for shoe sole injection molding, they can reduce sole density and increase resilience.

Different types of expandable microspheres may vary in specific applications. Selection should be based on actual needs and material properties. Their performance may also be affected by various factors such as polymer composition, internal gas type, chemical exposure, external pressure, and heating speed. In some new fields, research and exploration on the applications of Expandable Microspheres China are continually being conducted.

Related News
  • What Are Anionic Wetting Agents and How Do They Work?

    What Are Anionic Wetting Agents and How Do They Work?

    January 26, 2024When it comes to achieving effective wetting in various industries, one type of chemical consistently rises to the occasion: anionic wetting agents. These powerful substances play a crucial role by he...view
  • China Adhesive & TL-EXPO 2018

    China Adhesive & TL-EXPO 2018

    January 29, 20192018 Sept.19th-21st @Shanghai New International Expo CentreThe 21th China International Adhesives and Sealants Exhibition & the 13th China International PSA Tape and Label Expo (CHINA ADHESIVE 201...view
  • Live Up to the Spring and Steadily Progress丨2023 NCMC Annual Meeting Successfully Held!

    Live Up to the Spring and Steadily Progress丨2023 NCMC Annual Meeting Successfully Held!

    July 29, 2024Stay true to the mission and pursue our dream.In the beginning of 2024, NCMC held its annual meeting and celebration as scheduled, all NCMCer gathered together to look back on 2023 and look forward to...view
  • The Wide Use of Paraffin Wax

    The Wide Use of Paraffin Wax

    July 20, 2021The use of paraffin wax is very extensive. After immersing the paper in paraffin wax, various wax papers with good waterproof performance can be prepared, which can be used in food, medicine and other...view
  • Do You Know  about Sodium Dodecyl Sulfate?

    Do You Know about Sodium Dodecyl Sulfate?

    September 24, 2020Sodium dodecyl sulfate is a white to yellowish powder with a special slight smell. It is easily soluble in water, slightly soluble in ethanol, and almost insoluble in chloroform, ether and light petro...view
  • It Turns Out that the Shampoo Contains Cocoamido Propil Betaina

    It Turns Out that the Shampoo Contains Cocoamido Propil Betaina

    September 24, 2020Cocoamido propil betaina is a kind of light-yellow cleaning fluid that has excellent stability under acidic and alkaline conditions. It is cationic in acidic media and anionic in alkaline media. It ca...view
  • TEL:+86-25-52337978
  • EMAIL: info@njchm.com
  • ADDRESS:12/F, Block B, Technology and Innovation Building, Nanjing University of Technology, No.5 New Model Road, Nanjing 210009, China