The high-quality expansion characteristic is one of the great features of ADVANCELL EM.
●Independent micro-balloons result in a high-quality finish not offered by other chemical foaming agents.
Since ADVANCELL EM is comprised of shells (polymer cells), the micro-balloons feature an independent, closed-cell structure. ADVANCELL EM offers the following advantages over a chemical foaming agent made mainly of ADCA (azodicarbonamide).
■Fine, uniform micro-balloons achieve a smooth surface.
■The sharp particle size distribution achieved by Sekisui's proprietary technology allows the micro-balloon size to be controlled.
■Micro-balloons can be formed even in low-viscosity compositions.
- ADVANCELL EM
- Chemical foaming agent
●Expansion of ADVANCELL EM is more uniform than that of a conventional agent of the same type because of the sharp particle size distribution.
Thanks to Sekisui's proprietary particle dispersion technology (patented), ADVANCELL EM offers more uniform and sharper particle size distribution as compared to those of other expansion type foaming agents of the same type, thus producing a smooth and refined finish. Since ADVANCELL EM maintains a constant amount of heat necessary for expansion and stabilizes the expansion start temperature, it enables easier control of the processing temperature.
- ADVANCELL EM
- Uniform micro-balloons result in:
- ○Formation of uniform cells
- ○Smooth and refined finish
- ○Reduction of expansion loss so that only a small amount of ADVANCELL EM needs to be added
- ○Easy to control the processing temperature
- Conventional (polymer cell type)
- Non-uniform expansion results in:
- ×Formation of irregular cells
- ×Rough finish
- ×Generation of expansion loss due to unexpanded particles
- ×Difficulty to control the processing temperature
ADVANCELL EM Specifications
|Average particle size||12～18μm||36～44μm||15～25μm|
|True specific gravity
|Average particle size||24～34μm||20～30μm||25～35μm|
|Expansion start temperature (Ts)||120～130℃||135～145℃||150～170℃|
|Maximum expansion temperature (Tmax)||160～170℃||170～180℃||200～220℃|
|True specific gravity after expansion||0.016±0.005||0.016±0.005||0.016±0.005|
|Average particle size||24～34μm||21～31μm||15～23μm|
|Expansion start temperature (Ts)||140～150℃||160～180℃||160～180℃|
|Maximum expansion temperature (Tmax)||180～190℃||210～230℃||190～210℃|
|True specific gravity after expansion||0.016±0.005||0.016±0.005||0.020±0.005|
Master batch grade (pellets)
|Average particle size||21～31μm||15～23μm|
|Expansion start temperature (Ts)||160～180℃||160～180℃|
|Maximum expansion temperature (Tmax)||210～230℃||190～210℃|