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ACCUREL®

Technical Information

Additive loading in ACCUREL® MP/XP porous polymer carriers

Introduction

ACCUREL® MP porous polymer carriers are based on PP, HDPE, LDPE, LLDPE and made in a 2-step process. They

do have an open cell structure with interconnected cells. The cell size distribution is roughly between 5 and 20

μm. Depending on the polymer, the porosity ranges from 65 to 78% and the maximum additive loading from 50

to 70%.

ACCUREL®XP porous polymer carriers are based on PP, HDPE, LDPE, LLDPE, EVA, EMA, PA6, PA12, PS, SAN, SBC,

ABS, PET, PC, PMMA, PLA resp. water soluble PVOH. They are made in a 1-step physical cell forming process.

ACCUREL®XP grades mainly have an open cell structure. The cell size distribution is between 20 and 80 μm. The

porosity ranges from 35 to 85% and the maximum additive loading level from 25 to 70%.

The porous polymers act like sponges. Loading of additives into a porous polymer is solely a physical absorption

process. Due to capillary forces the accessible porous structure will be filled with additive.

The absorption rate is mainly determined by the viscosity of the additive. Depending on the viscosity the

maximum additive loading may be achieved in a time frame from 30 min up to 72 h. ACCUREL®MP/XP is most

suitable for liquid, low melting, thermally sensitive, reactive or otherwise difficult to handle additives that cannot

be processed by conventional extrusion compounding or masterbatching techniques.

Requirements

– If the additive is liquid at room temperature, loading can be done at room temperature.

– If the additive is a solid or a paste with a melting point at slightly elevated temperatures, the additive can be

melted and loaded at temperatures slightly above the melting point of the additive. However, the loading

temperature has to be approx. 40°C below the melting or softening point of the polymer, otherwise the

porous structure might collapse.

– If the additive is liquid but highly viscous at room temperature, the viscosity can be reduced in many cases by

increasing the temperature. Again, the temperature should be approx. 40°C below the polymer melting or

softening point.

– The additive can be dissolved in an organic solvent (ethanol, acetone, IPA).

– The viscosity of the additive should not exceed 30.000 cSt.

– Both hydrophilic/hydrophobic and polar/non polar additives can be loaded. In some cases the addition of

wetting agents is required.

suitable for liquid, low melting, thermally sensitive, reactive or otherwise difficult to handle additives that cannot

be processed by conventional extrusion compounding or masterbatching techniques.

#Accurel#XP400#XP#MP

อาจเป็นรูปภาพของ ข้อความพูดว่า "ACCUREL XP-400 Hi-Porous Resin Additive loading Min. Max. Bulk Density ,g/l 125 น้ำหนัก กรัมต่อปริมาตร 175 Void Content % 60 เปอร์เซ็นของปริมาณรูพรุน 70 Brand EVONIK"

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