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Antistatic agent for acrylic resins"ELEMINOL JS-140”

Copolymerization with acrylic resin can provide antistatic properties while maintaining transparency.

Sanyo Chemical's Radical Polymerizable Antistatic Agent 
 Here is what is great about "ELEMINOL JS-140"

1

Radical copolymerizable antistatic agent

Copolymerization with acrylic and methacrylic monomers such as methyl methacrylate (MMA) can add antistatic properties to acrylic resin (PMMA). It reduces surface resistivity to around 1012-13 Ω/m2 and prevents dust from adhering to the acrylic resin surface.

2

Continued antistatic properties even after wiping with water, so dust adhesion prevention performance is maintained.

Because of copolymerization, antistatic properties (dust adhesion prevention effect) are maintained even after wiping with water.

3

Maintain transparency of acrylic resin during copolymerization

When copolymerized, it can provide antistatic properties without affecting the transparency of acrylic resin (PMMA).

"ELEMINOL JS-140", a radical polymerizable antistatic agent, provides antistatic properties through copolymerization during the production of acrylic resins.

Recommended blending amount: 
 By blending and polymerizing 3 to 7 parts by weight per 100 parts by weight of monomer, it is possible to maintain transparency and prevent dust adhesion.

Why is the radical polymerizable antistatic agent "ELEMINOL JS-140" is important for acrylic resins?

Antistatic of Acrylic Resins and Challenges

Acrylic resin (PMMA) is a plastic material with excellent transparency and is used in various applications requiring transparency, such as acrylic panels, water tanks, and various types of lighting. On the other hand, acrylic resin itself does not conduct electricity, and because it is hydrophobic, there is little moisture on its surface to release static electricity.

 However, since these antistatic components are generally hydrophilic substances, there is a concern that they will easily peel off when cleaning with water or alcohol disinfection.

Advantages of using radical polymerizable antistatic agent "ELEMINOL JS-140"

Acrylic resins are produced by radical polymerization of monomers such as methyl methacrylate (MMA). Since the radical polymerizable antistatic agent ELEMINOL JS-140 contains components with radical polymerization properties, it can be blended with the radical polymerization of MMA and copolymerized to give antistatic properties to the acrylic resin itself. (It is a polymerizable antistatic agent particularly suitable for the casting method, where antistatic components are easily unevenly distributed on the surface.)

Intended use

Antistatic properties on acrylic sheets
(Prevention of dust adhesion)

Provides antistatic properties to water tanks (prevents dust adhesion)

Functional data from "ELEMINOL JS-140" copolymerization

Data on maintenance of antistatic properties when wiping with damp cloth

< Test Methods >
Antistatic property (surface resistivity) evaluation: The evaluation was conducted in accordance with JIS K 6911.
Dust adhesion test: After antistatic property evaluation, the test specimen was rubbed with a cloth 20 times to electrify it, and then dust adhesion was observed.

 The test was conducted in accordance with K 6911. After washing the surface and back of the specimen with ion-exchanged water, the specimen was dried overnight at 20°C, 65%RH to evaluate antistatic properties and conduct the dust adhesion test. This was repeated 10 times.

1

Before wiping with damp cloth

    JS-140 added              BLANK

The acrylic plate (left side) to which ELEMINOL JS-140 was added is almost free of dust.

2

After 10 wipes with damp cloth

    JS-140 added              BLANK

The acrylic plate (left side) to which ELEMINOL JS-140 was added (left side) shows almost no dust adhesion even after 10 wipes with damp cloth.

"ELEMINOL JS-140" provides antistatic properties while maintaining the transparency of acrylic resin.

Table. Physical properties when PMMA resin is added (3 mm thick PMMA plate)

item test procedure JS-140
5wt%
blending
blank
Surface resistivity
Ω
JIS K6911 1012-13 >1016
Total light transmittance
%
JIS K7361-1 92.1 92.1
Tensile strength
MPa
JIS K7162 59 68
Bending strength
MPa
JIS K7171 100 118

<Sample preparing method >
 Polymerization method: Cast polymerization method 
 Molding size: 210mm x 150mm x 3mm 
 Additive amount: JS-140 5 parts by weight

Fig. Appearance of PMMA cast plate with 5wt. of ELEMINOL JS-140

Properties of "ELEMINOL JS-140"

item Representative value
Structure Sulfosuccinic acid type surfactant 40%*
Polyethylene glycol 60%
Appearance Pale yellow to yellow liquid
Freezing point 5°C or less
Viscosity(25℃) 100 mPa-s or less

Registration Status of Chemical Substance Examination Laws in Each Country

countries ELEMINOL JS-140 registration
Japan(ENCS) Resistered
United States(TSCA) Resistered
Canada(DSL) Resistered
Australia(AICS) Not resistered
Korea(ECL) Resistered
China(IECSC) Resistered
Philippines (PICCS) Not resistered
Switzerland (EINECS) Not resistered
Europe (REACH) Not resistered
Taiwan Resistered
New Zealand(NZIoC) Not resistered

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