Antistatic Agents

Hostapur® SAS93:

Hostapur SAS93 is a line of chloride-free yellow pellets with strong water absorption properties formulated for use as an internal antistatic agent for polar plastics. If direct incorporation into the polymer is not possible it can also be applied to the surface of the finished article (by spraying or dipping) by use of a 1 % Hostapur SAS93 aqueous solution.

In PS

Hostastat SAS93 is used as an antistatic agent in PS in amounts of 2-3 phr. The addition of Hostastat SAS93 in amounts  of 0.3 phr causes hazing in transparent PS articles.

 

In ABS

For styrenic co-polymers such as ABS, Hostastat HS 1 is added in concentrations of 2-3 phr.

 

In  PVC

Hostastat HS 1 is widely used as an internal antistatic agent for plasticized semi-rigid and rigid PVC. Due to Hostastat HS 1 causing hazing of transparent polymers in the 1.0 phr to 1.5 phr range, its main applications are in the manufacture of opaque PVC calendered films.

Amounts of Hostastat SAS93 should not exceed 0.3 phr in transparent rigid PVC; A combination of 0.3 phr Hostastat SAS93 with 1.0 phr Hostastat FE 20 has proved successful to maintain transparency.

For plasticized PVC, Hostastat SAS93 is used in amounts of 1 – 2 phr; hazing occurs at concentrations higher than 0.3 phr.

In semi-rigid PVC, the antistatic performance of Hostastat SAS93 is remarkably good in 1.0-2.0 phr amounts.

For antistatic modification of thick-walled extruded and injection-molded articles made from rigid PVC, direct Hostastat SAS93 incorporation is recommended in the amount of 2-3 phr. Alternatively, it can also be applied to the surface of the finished article (by spraying or dipping) in a 1% Hostastat SAS93 aqueous solution.

 

In LDPE

Hostastat HS 1 is suitable for antistatic modification of polyolefins, particularly polyethylene (PE-LD). It has proven to improve the flow of the polymer melt during processing and is generally added in amounts of 1-2 phr.

 

Further Applications

Hostastat SAS93 is can be applied as an antistatic agent in engineering plastics such as: TPU，PA，PBT，POM, etc.

Hostastat HS 1 can act as an external lubricant in polymers.

 

Iragastat  P18：

Characterization：IRGASTAT P18 is a polymeric system based on polyamide / polyether block amides.

Applications: IRGASTAT P18 is recommended, where a permanent antistatic effect is sought, in applications such as electronic and industrial packaging, housings and parts of business machines and plastic supplies for use in clean room conditions. It can be used in thermoplastic polymers, transparent film, fiber or molded applications.

Features/benefits: Permanent, non-migratory antistatic agent. Thermally stable and effective at low humidity (<10 %). Immediately effective after incorporation. Surface resistivity down to 108 W/sq can be achieved, depending on substrate and processing.

Characteristics

• Colorless
• Transparent
• Non sparking
• No dust /micro contamination
• Permanent
• Humidity independent
• No migration
• Network forming

Benefits

• Permits use of color codes
• Applicable in films and transparent housing
• No grounding required
• Suitable for clean room applications
• Effect over the useful life of high value applications
• Guaranteed effect in critical applications
• No content contamination, no printing problems
• Immediate effect, no impairment of mechanical properties

Guidelines for use:  IRGASTAT P18 recommended use levels are 8 – 25 % (1012 – 109 W/sq). Mainly for engineering plastics, due to relatively high loading levels a pre-compounding step is recommended.

IRGASTAT P18 recommended use levels are 4 – 15 % (1011 – 108 W/sq). Mainly for polyolefins, no pre-compounding step required, however system performance is sensitive to processing conditions (shear, temperature etc.). The use of compatibilizers can support dispersion mainly in large molded articles.

Physical Properties:

 

Handling & Safety:  Products are dust free and do not require special precautions. They should be used in accordance with good industrial practice. For more detailed information please refer to the material safety data sheet. Be aware that these products can pick-up humidity.