Skip to main content

What is Expandable Microsphere?

 Brief Introduction of Expandable Microsphere

The color of the expandable microspheres is white. Its average particle size is 10-30 μm. Its average density is about 1100 kg / m 3 . It has a thermoplastic shell comprising a low boiling liquid hydrocarbon. When the thermoplastic shell is softened at elevated temperatures, the increased pressure of the hydrocarbon will cause the microspheres to expand 40 to 100 times. When the internal pressure of the microsphere, the shell tension and the external pressure reach equilibrium, the microspheres no longer expand. Expandable microspheres have become the world's lightest application because the density of expanded microspheres is less than 30 kg / m3 (0.03 g / cm3).

 

Characteristics of Expandable Microsphere

The first feature is cost savings.

In thermoplastic materials such as PR, PP, PVC, PET, TPR, TPU, TPV, PA and paper/paperboard, expandable microspheres can be used as lightweight fillers and blowing agents. Expandable microspheres reduce product density, reduce volume, and reduce transportation costs. 30kg PVC or 25-30kg paper fiber can be replaced with 1kg expandable microspheres. Expandable microspheres can be used in many fields, including soles, wood-plastic composites, automotive parts, paper and cardboard, nonwovens, coatings, and the like.

 

The second feature is low density.

The heat density of the expandable microspheres is reduced. Add 3 Å of expanded microspheres to the material to reduce the material density by 10%. Or adding 1% unexpanded microspheres reduces the density by 10%. Product density is reduced but its volume and thickness do not increase. It helps to reduce the energy consumption of the car. It makes the sole lighter and more comfortable. It is widely used in the following products: soles, wood-plastic composites, auto parts, non-woven fabrics, ultra-light clay, etc.

 

The third feature is surface modification.

Microspheres of different particle sizes have different surface effects. The small particle size of 5 μm makes the surface smooth. Large particle size microspheres can produce relatively rough surfaces. 3D and a special cashmere surface make the surface smooth, soft and non-slip. It is widely used in the following materials: printing inks, leather coatings, paper and cardboard.

 

The fourth feature is insulation.

The microspheres have good insulation, sound insulation, electrical insulation and low water permeability because of their uniform closed cell structure. Because of this property, it can be used in the following products: wine stoppers, auto parts, crack fillers, silicon. Rubber, emulsion explosives, cables, etc.

 

The fifth feature is flexibility.

The expandable microspheres are elastic. It is a thermoplastic core-shell microsphere. It can be compressed under a certain pressure, or it can be restored to its original state. It can therefore be used in the following products: wine corks, automotive interiors, silicone rubber, leather coatings, cables and more.

 

NCMC has been developing and focusing on chemicals for more than 60 years, and now is one of the largest professional chemical suppliers in Jiangsu province, with the privilege authorized by China government for operation of hazardous chemicals, highly toxic chemicals, precursor and explosive chemicals. Contact us to know the details of glycolic acid.



Labels:

Comments

Post a Comment

Popular posts from this blog

Difference Between Sodium Laureth Sulfate And Sodium Lauryl Sulfate

Sodium laureth ether sulfate  (SLS) and sodium lauryl ether sulfate (SLES) are surfactants that play a role in foaming products. It is widely believed that the foam produced by a product is its performance. The composition of SLS and SLES reduces the surface tension of water. They can also be used as dispersants to properly mix spices and body spray. SLS and SLES can also be used in a variety of personal care products such as soap, shampoo, shower gel, toothpaste and other foaming products. SLS and SLES are also added to moisturizing lotions and sunscreens because of these properties. The difference between SLS and SLES is in the manufacturing process. SLS undergo a process called ethoxylation. And then you get SLES. Why do we have this ethoxylation process? Because SLS has some mild irritation on the skin, such as dry. The manufactured SLES are more gentle and do not irritate the skin. Many manufacturers do not use SLS because it is irritating. SLES should be softer o...
Post a Comment
Read more

Difference Between Sulfate And Sulfonate In Shampoo

  Sulfates and sulfonates have two things in common. First, they're all anionic surfactants. Second, they are often used for personal care applications. But there are many differences. They have different molecular mechanisms. They have different functions and they have different raw materials.   Sulfates Sulfate is a compound. It has carbon bonds and oxygen and sulfur bonds. They include substances such as sodium lauryl sulfate and sodium lauryl ether sulfate.   At low pH, these substances plus the c-o-s bond hydrolyze to produce alcohol and inorganic sulfate. At a high pH, sulfate is stable in the base and, if ethoxylated to a relatively high level, produces a low-foaming alkali-soluble surfactant. Sulphates can be prepared by reaction of fatty alcohol or fatty alcohol ethoxylates with reagents such as SO3 or chlorosulfonic acid (CSA).   The reason shampoo becomes thick foam in the shower is that it contains sulfate. Most shampoos and household cleansers contain su...
Post a Comment
Read more

What Are the Advantages of DMC Catalyst?

DMC catalyst is a new type of high-performance catalytic olefin oxide ring-opening polymerization catalyst, suitable for synthesis of olefin oxide polyether containing 1-6 functional groups. DMC catalyst manufacturers usually use low molecular weight organic complexing agents. The complexing agents beneficially affect the activity of the catalyst for epoxide polymerization. The production of polyether with DMC catalyst has the following advantages: Low production and running costs 1) No post-processing process and faster reaction speed increase the production capacity of the device by several times. 2) No post-treatment process reduces equipment investment, unit product energy consumption and water consumption, unit product solid waste and waste water production, and improves product yield. 3) It can produce higher molecular weight products with molecular weight of more than 2000 per mole of hydroxyl group. 4) The produced polyether has the characteristics of narrow molecular weigh...
Post a Comment
Read more