Nanjing Chemical Material Corp.
Service
Products

Application of Expandable Microspheres As Foaming Agents Application of Expandable Microspheres As Foaming Agents

The foamer made of expandable microspheres is a new type of special additive which belongs to polymer particles. Microsphere foaming is a kind of core-shell structure with the core in it a spherical plastic particle composed of alkane gas and the shell outside of thermoplastic polymer which can release hydrocarbon.


Under the indoor temperature, the polymer shell is hard and generally 10-45 microns in diameter. When heated, the shell softens and at the same time the hydrocarbons increase the internal pressure which make the microspheres expand like a ball with the diameter high to 20-200mm. The volume of the microspheres can rapidly expand to tens of times itself thus achieving the goal of foaming. Once the microspheres are cooled, the polymer shell is still hard in the expansion state. So the volume is maintained in the heating state, so the density of the microspheres is reduced while the outside hell has good elasticity to withstand greater pressure so the foaming agent made of expandable microspheres won't break after heating expansion.


The foaming wallpaper take the paper of 100 g/m² as the base materials, coated with the foamer of 300~400 g/m² mixed with expandable microspheres, finally foamed after the printing. This kind of wallpaper is thicker and softer than those ordinary wallpapesr.


Among them, the surface of high foaming wallpaper is showing like elastic and concave-convex; it is a kind of wallpaper with the decorative function and sound-absorbing which is often used for ceiling decoration of opera house and conference room. Low foaming printing wallpaper will print patterns on its surface which mixed with some particular amount foamer in it. By using ink containing anti foaming materials in it to make the surface forms concave- convex patterns with different colors which also known as chemical relief. The pattern on the wallpaper is vivid and with a strong sense of three-dimensional and decorative. And the low foamering wallpaper with a certain elastic will print the patterns on the foaming side which show the effects of relief, wood grain or tiles.

Related News
  • What is the Glycolic Acid in Skin Care Products

    What is the Glycolic Acid in Skin Care Products

    October 30, 2020Glycolic acid is a water-soluble α-hydroxy acid (AHA) derived from sugarcane. It is one of the most famous and the most extensively used α-hydroxy acids in the skin care industry. Glycolic acid work...view
  • By What Means Can Propionyl Chloride be Prepared?

    By What Means Can Propionyl Chloride be Prepared?

    June 4, 2021Propionyl chloride can be prepared by reaction of propionic acid with phosphorus trichloride, phosphorus pentachloride, sulfoxide chloride or phosgene.The following steps and precautions are introduce...view
  • Happy Mid-Autumn Festival

    Happy Mid-Autumn Festival

    January 30, 2018There are always debates among Chinese on the flavors of certain traditional Chinese food such as dumplings, tofu pudding and moon cake about choosing sweet or salty. This Mid-Autumn Festival, let’s ...view
  • Anionic Surfactants for Cleaning

    Anionic Surfactants for Cleaning

    January 15, 2021Anionic surfactants are the earliest and most widely used functional chemical products in the field of cleaning. At the same time, it is also one type of most production, most varieties and the most m...view
  • Six Characteristics of Expandable Microspheres Shoes

    Six Characteristics of Expandable Microspheres Shoes

    August 18, 2021Expandable microspheres shoes are thermoplastic hollow polymer microspheres composed of a thermoplastic polymer shell and a sealed liquid paraffin gas. The average diameter of these hollow polymer mi...view
  • Myristoyl Chloride

    Myristoyl Chloride

    October 13, 2021Myristoyl Chloride also known as tetradecanoyl Chloride. It's a colorless liquid.The substance may be harmful to the environment and special attention should be paid to the pollution of water bodies. ...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