Bulletin No. ES30000020A
Date issued: Aug. 5, 2024

Coating, Kneading and Reactive Types

Antistatic Agents for Synthetic Resins
Preface
Synthetic resins have high insulation resistance and their surfaces easily become charged withstatic electricity. Therefore, the static electricity in synthetic resins often causes problems. For
example, dust spoils the beauty of synthetic resins due to static adhesion. Moreover, static electricity
interferes in plastic production processes, and causes other problems such as the destruction ofelectronic circuits, electrical shock, and malfunction of appliances. We offer a wide range of antistatic
agents for synthetic resins in accordance with the kind of resins applied and production process toprevent such electrostatic hazard.
<Lists of CHEMISTAT and SANSTAT products>

Kneading (for polymer alloy)

Coating Reactive

Product Name

Polyolefin

Polyvinyl
chloride

PolyesterABS
resinsVariousinks

VariousresinsPolyamide

Uses for Applications

CHEMISTAT 3033

A

AA

A

−−−

[B]NM-3184

CHEMISTAT 3500

−−−−

A−−−

CHEMISTAT Y−400−−−−−−A−

Registry No.
Identified by Positive
List System*

A : Applicable, * The Japan Hygienic Olefin and Styrene Plastics Association Provides it.
We offer a wide range of permanent antistatic agents as antistatic additives under the trade name ofPELESTAT and PELECTRON.

-1-Typical Properties
1. Typical Properties
Tables 1-a and 1-b show the typical properties and features of antistatic agents for synthetic resins.
The values are representative.
Table 1-a. Typical Properties
Solids Content Melting Point*
wt %°C

Product Name

Appearance

Ionic

CHEMISTAT 3033

Pale yellow colored granule to flake

Anionic

99

70 *CHEMISTAT 3500

Pale yellow paste

Anionic97–CHEMISTAT Y−400

Straw-colored granuleNonionic9855*Softening point

Table 1-b. Features
Product NameCHEMISTAT 3033

FeaturesExcellent heat resistance. Effective when used with resins having ahigh Tg (inappropriate for transparent products).

CHEMISTAT 3500

Applicable to inks and paints.

CHEMISTAT Y−400

Reactive type (copolymerized as a component of polyamide **)Imparts flexibility besides antistatic property.

** Polyoxyethylene diaminopropylether (total of amine values: approx. 25)-2-2. Heat Resistance
Figure 1 shows the TG curve of CHEMISTAT 3033.

100Weight (wt %)8060402000100

300200Temperature (°C)
Figure 1.

400500TG curve

Testing method:
Thermogravimetric analyzer (heating rate: 10 °C/min), in an atmosphere of nitrogen.

-3-Performances
The following test data shows antistatic properties of each antistatic agent as well as the relationshipbetween humidity and antistatic properties, etc.
Antistatic properties depend on the kind of resin, reaction method, kneading method, coating method,molding conditions of the resin, etc.
1. Relationship Between the Amount of Kneading Type Antistatic Agents and the Surface Resistivity
Figure 2 shows the relationship between the amount of kneading type antistatic agents,
CHEMISTAT 3033 in polypropylene (PP) and the surface resistivity.
1×1015

Surface Resistivity(Ω)

1×1014

1×1013

1×1012

1×1011

1×1010
0

0.2

0.4

0.6

0.8

Amount of Antistatic Agents Kneaded

1.0(wt %)

Figure 2. Relationship between Amount of Kneading Type Antistatic Agents and Surface Resistivity
Materials and Method:
Materials:
A predetermined amount of the antistatic agent as described in Figure 2 and PP were blended,and the mixture was kneaded with a Henschel mixer. The kneaded mixture was then moldedwith an injection molding machine [injection temperature: approx. 225 °C, injection pressure:
8MPa (gauge), molding temperature: 40 °C] into plate type samples (80 mm×80 mm×2 mm).
These samples were kept at 20 °C, 65%R.H. for 1 week.
Method:The surface resistivity of each sample was measured at 20 °C, 65%R.H. using an ultramegohmmeter.

-4-2. Relationship Between the Amount of Reactive Type Antistatic Agent and the Surface ResistivityFigure 3 shows the relationship between the amount of reactive type antistatic agent in polyamide
and the surface resistivity. Approx. 20 wt % of CHEMISTAT Y−400, copolymerized with polyamide,exhibits an excellent antistatic property.

1×1016

Surface Resistivity(Ω)

1×1015

1×1014

1×1013

1×1012

1×10110102030

Amount of Antistatic Agent Copolymerized

40(wt %)

Figure 3. Relationship Between Amount of Reactive Type Antistatic Agents and Surface Resistivity
Materials and Method:
Materials:
A predetermined amount of CHEMISTAT Y−400 as described in Figure 3, adipic acid having an
identical amount of substance concentration (mole) to CHEMISTAT Y−400, and the required
amount of ε– caprolactam* were copolymerized with polyamide, and pellets were made. Thepellets were molded using a press at 200 °C, 30 MPa for 3 min into sheets 500 μm inthickness. They were then kept at 20 °C, 65%R.H. for 1 week, and used for samples.
Method:See Figure 2.
* To achieve the amount of copolymerized CHEMISTAT Y−400 with polyamide as described inFigure 4.

-5-3. Relationship Between the Amount of Antistatic Agents for Inks and the Surface Resistivity
Figure 4 shows the relationship between the amount of CHEMISTAT 3500, added to a commerciallyavailable gravure ink, and the surface resistivity.
Approx. 1 wt % of CHEMISTAT 3500 (for ink resin content) inhibits both ink blots caused by static
electricity and ink-scattering.
1×1016

Surface Resistivity(Ω)

1×1015

1×1014

1×1013

1×1012

1×10110

0.5

1.0

Amount of Antistatic Agent Blended

1.52.0(wt %)Figure 4. Relationship Between Amount of Antistatic Agents and Surface Resistivity
Materials and Method:
Materials:
A predetermined amount of CHEMISTAT 3500 as described in Figure 4 was blended withcommercially available gravure ink (Each proportion of CHEMISTAT 3500 to the ink resin content
is described in Figure 5.). Dried PP films were coated with ink at 2 μm in thickness, and dried.
They were then kept at 20 °C, 65%R.H. for 24 hours.
Method:See Figure 2.

-6-

Application Methods
1. Recommended AmountThe amount of antistatic agents to be applied depends on the performance requirements, the kindof resin and the molded form, however, the standard amount is as follows:
Table 3. Standard AmountCompounding Method
Kneading
Coating
Reactive

Molded Form
Molded MaterialFilm, Sheet1 – 2 wt %0.3 – 1 wt %20.05 – 0.1 g/m

2 – 10 wt % (CHEMISTAT Y−400)

2. Compounding Method
Kneading
There are two different methods· Mix antistatic agents into pellets or powder to achieve the required concentration, using ablender.
· Produce master batches which contain a higher concentration of antistatic agents
beforehand, and then mix them into pellets or powder to achieve the required concentration.
Recommended mixer: Henschel mixer
Coating· Dilute antistatic agents with water to achieve the required concentration, coat resins with themusing the brief immersion method, or a spray coater or a roll coater, and then dry the coatedresins.
Reactive· The composition of CHEMISTAT Y−400 is polyoxyethylene diaminopropylether (total of amine
values: approx. 25). Refer to Figure 4 on page 6, CHEMISTAT Y−400 should be copolymerized with polyamide as a component of polyamide.

Precautions Against Mishandling· Too much additive amount of antistatic agents may have a negative effect on the resin’s physicalproperties such as defective moldings/stickiness. Test the effect on their physical properties
beforehand to ensure that there are no problems.
· Use these products under optimal conditions after studying kneading, coating, reactive methods, etc.
· Seal these products closely under moisture-proof conditions after use because they have some
hygroscopic properties.
-7-

Important :Before handling these products, refer to the Safety Data Sheet for recommended
protective equipment, and detailed precautionary and hazards information.

This brochure has been prepared solely for information purposes. Sanyo Chemical Industries, Ltd.
extends no warranties and makes no representations as to the accuracy or completeness of theinformation contained herein, and assumes no responsibility regarding the suitability of thisinformation for any intended purposes or for any consequences of using this information . Any
product information in this brochure is without obligation and commitment, and is subject tochange at any time without prior notice. Consequently anyone acting on information contained inthis brochure does so entirely at his/her own risk. In particular, final determination of suitability of
any material described in this brochure, including patent liability for intended applications, is thesole responsibility of the user. Such materials may present unknown health hazards and should beused with caution. Although certain hazards may be described in this brochure, Sanyo ChemicalIndustries, Ltd. cannot guarantee that these are the only hazards that exist.

For detailed information, please contact below.
Head Office & Research Laboratory of Sanyo Chemical Industries, Ltd.
Address: 11-1, Ikkyo Nomoto-cho, Higashiyama-ku, Kyoto 605-0995, JapanTel: +81-75-541-4311
Fax: +81-75-551-2557
Tokyo Branch Office of Sanyo Chemical Industries, Ltd.
E-mail: sanyoproduct@sanyo-chemical.group
Address: 24th Fl., Hibiya Fort Tower, 1-1-1, Nishi-shimbashi, Minato-ku, Tokyo 105-0003, Japan
Tel: +81-3-3500-3411
Fax: +81-3-3500-3412
URL https://www.sanyo-chemical.co.jp/eng
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