Expancel microspheres

Product Description:

Expander is a new special additive. It also named microsphere foaming agent . it is a kind of core-shell

structure.The shell is a thermoplastic acrylic resin polymer and the core is a spherical plastic particle

composed of alkanegases.The diameter is generally 10-45 microns. After heating, the volume can

rapidly expand to tens of timesthan its own,thus achieving the effect of foaming. The foaming

temperature ranges from 75 -260 C.

Technical index

Appearance: white powder

Particle size 5-30um

Initial foaming temperature (c) 70-180

Maximum foaming temperature (c) 185-195

Performance:

1. 1.Good thermal mechanical properties.

2.Excellent elasticity: Thermoplastic shell has excellent pressure resistance, the surface can withstand

300 kg/square centimeter pressure, good resilience can withstand repeated cyclic pressure/pressure

relief without rupture.

3. Excellent foaming performance: can achieve the original 20-70 times of independent foaming effect,

foaming is stilla complete closed body, with the traditional chemical foaming agent can not match the

foaming effect.

4. Environmental protection performance: Polymer microspheres are non-toxic and pollution- free,

and can be used as environmentally friendly foaming agent in high-end products and high value-added

products.

Application

Expandable microcapsule Mainly used in thermoplastic elastic foamed soles, such as TPU/TPE

(SEBS/SBS)/TPR.Waterborne paint, waterborne printing pulp, waterborne wallp, etc.

Applied to PVC air-blown slippers, it has the following advantages: small addition, can give PVC

air-blown slippers ultra-light weight, small density, make the product foam fine and uniform, the product

after stereotyping skin smooth and bright color, bright, non-matte effect (better than other types of

expanders),soft, comfortable,small shrinkage.

Usage method

Easy to use, adding in the formula, mixing and stirring evenly, control the temperature can be good,

do notneed to adjust the original process, the amount of addition according to the industry and the

effect achievedis generally 0.5-1.5%.