ANTI-FOAM SURFACTANTS by pawel

ANTI-FOAM SURFACTANTS Non-ionic surfactants series

Surfactants Everywhere

INTRODUCTION PCC Exol SA was created by merge of PCC Exol SA and Surfactants Business Unit of PCC Rokita SA. The Company’s core scope of operation is the manufacture and sale of surfactants. The Company is headquartered in Brzeg Dolny, where is located manufacturing unit of anionic and nonionic surfactants. Moreover, in 2011, there was start-up of new production unit of nonionic surfactants (ethoxylation plant) in Płock. The flexibility of production allows to offer a wide range of anionic and nonionic surfactants according to the current needs of our Customers. As one of the leading manufacturers of chemical products, the Company is continuing to undertake investment activities with using modern technologies and based on the principle of sustainable development. Our strategic investor is the German Company PCC SE, which operates internationally in three divisions: Chemicals, Energy and Logistics. Today, more than 70 subsidiaries and associated Companies working within the PCC Group employ about 2500 staff in 16 countries. Group strategy is focused on growth and profitability in the core activities as well as on diversification into new segments. PCC GROUP (Poland)

Chemicals

PCC Consumer Products SA (Warsaw, Poland)

PCC Consumer Product Kosmet Sp. z o.o. (Brzeg Dolny, Poland)

PCC Prodex Sp. z o.o. (Warsaw, Poland)

Navigator (Belarus)

Logistics

PCC Exol SA - Brzeg Dolny, Poland - Płock, Poland

PCC Rokita SA (Brzeg Dolny, Poland)

FZ „Czechowice” SA (Czechowice, Poland)

Kosmet Navigator JLtd. (Belarus)

Energy

Tensis Sp. z o.o. (Brzeg Dolny, Poland)

PCC Synteza SA

PCC Chemax, Inc. (S.C.) (Piedmont, USA)

S.C. EURO URETHANE SRL

PCC Exol Kimya Sanayi (Turkey)

PCC Exol Philippines Inc.

PCC Consumer Products (Russia)

Surfactants offered by our Company have very wide industrial applications. In addition to household chemicals, personal care, agrochemical, textile, oilfield, are widley used as low foaming agents, wetting agents, emulsifiers, adiuvants in the paper industry, metallurgical and many others. Over the years, PCC Exol has developed core competencies in manufacturing specialty surfactants. We meet our Customers’ needs with a unique and versatile product portfolio, a broad expertise in surfactants chemistry and a high degree of flexibility. Through intimate Customer relationships and by maximising synergies of Customers’ application experience and our chemistry knowledge, we continuously strive to offer tailor-made products and system solutions that contribute to your success. We are continuously expanding our product range with new surfactants, focusing on safe chemistry, friendly to people and environment. One of the major goals of PCC EXOL is to manufacture efficient and high quality surfactants for different industry applications. PCC Exol. The solid platform of chemical business!

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ANTI-FOAM SURFACTANTS CHEMICAL NATURE The ROKAmers and ROKAnols are low-foaming non-ionic surfactants. ROKAmers are block copolymers of ethylene oxide (EO) and propylene oxide (PO). ROKAnols are polyoxyalkylene fatty alcohols. ROKAmers are block copolymers of ethylene oxide (EO) and propylene oxide (PO) and can be represented by the following formula:

HO(CH2CH2O)X[CH(CH3)CH2O]Y(CH2CH2O)ZH where: X+Z– average number of ethylene oxide units, Y – average number of propylene oxide units. ROKAnols are ethylene and propylene oxide adducts to various types of alcohols and can be represented by the following structures:

RO(CH2CH2O)X[CH(CH3)CH2O]YH or RO[CH(CH3)CH2O]Y(CH2CH2O)XH where: R – fatty alcohol chain, X – average number of ethylene oxide units, Y – average number of propylene oxide units.

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APPLICATION Antifoam surfactants are very useful for low-foam and no-foam applications. They are especially suitable as rinse aids, hard surface cleaners, metal cleaners and machine dishwashing. Antifoam surfactants are also used in pulp & paper, food processing, textile processing, agriculture, paint & coating and other applications.

• AGRICULTURE

• AUTOMATIC DISHWASHING DETERGENTS AND RINSE AIDS

• PULP AND PAPER

• FOOD PROCESSING

• METAL CLEANING

• TEXTILE INDUSTRY • LAUNDRY DETERGENTS

• PAINT AND COATINGS

• HARD SURFACE CLEANERS

BASIC PHYSICAL AND CHEMICAL PROPERTIES

Antifoaming agents have several properties responsible for their efficient operation, such as: • low viscosity, • effectively eliminating foam and preventing of foam formation, • high proliferation in the foamed surface, • lack of silicone components, • long shelf life.

Basic information concerning ROKAmers and ROKAnols physical and chemical properties are summarized in Table 1.

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BASIC PHYSICAL AND CHEMICAL PROPERTIES

ROKAmer 2000

ROKAmer 2600

ROKAnol RZ4P11

ROKAnol LP2023

ROKAnol LP2126

Appearance at 25°C

Clear or slightly turbid liquid

Clear or turbid liquid

Clear liquid

Clear or turbid liquid

Hazen colour at 40°C

max. 50

max. 100

max. 30

23-27

16-20

Method D 10% solution in 25% BDG solution

approx. 40

approx. 38

21-26

Method E 16.7% solution in 25% BDG solution

approx. 32

33-37

23-27

20-23

max. 1

max. 0.5

max. 0,5

Solidification point [°C]

approx. -20

approx. -22

approx. 10

approx. -10

approx. -20

pH in deionized water, at 20°C

4.6-7.4

5.5-8.5

5.0-7.0

4.0-6.0

Density at 25°C [g/cm³]

approx. 1.01

approx. 1.02

approx. 0.97

approx.0.97

approx. 0.98

Viscosity at 20°C [cP]

approx. 400

approx. 600

approx. 130

approx. 150

approx. 250

Cloud point, [°C]

Method A 1% in water solution

Water content [%, by weight]

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ANTI-FOAMING CAPABILITY

Anti-foaming properties were tested using the internal test method that allows to determine the ability to extinguish the foam produced by the standard solution. The method consists in measuring the foam volume generated by the foaming agent solution, which degrades over time, by injection of a solution to the surface of the test compound antifoam. Anti-foaming properties of PCC Exol products compared to reference products are shown in Graph 1 and Graph 2. 1000 900

ROKAmer 2000

Foam volume [mL]

800

ROKAmer 2600

700

Market defoaming 1

600

Market defoaming 2

500 400 300 200 100 0 1

Time [min] 1000

Foam volume [mL]

900 800

ROKAnol RZ4P11

700

ROKAnol LP2023

600

ROKAnol LP2126

500

Market defoaming 1 400

Market defoaming 2

300 200 100 0

Time [min]

Anti-foam surfactants produced by PCC Exol exhibit very good defoaming properties. They effectively eliminate foam and the result is comparable or even better than for reference products. Both ROKAmers and ROKAnols extinguish the foam mostly in the first minute after dosing on the foaming medium.

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MECHANISM OF ACTION

Low foaming surfactants produced by PCC Exol find use in food industry. The products enable foam control at all stages of production process. This kind of surfactants can act according to two mechanisms: • as defoamers: because of the affinity to the air-liquid surface they can penetrate foam lamellas and destabilize them; this causes bursting of the air bubbles and destroying the foam, • as antifoams: they spread on the liquid surface to form film which prevents foam from forming. The more hydrophobic defoamer the better propagation and defoaming effect.

Low-foaming agents are used: • as a component of defoaming agents in potato processing, • in the sugar industry, • in fruits and vegetables processing.

ROKAmer 2000 and ROKAmer 2600 comply with FDA regulations (21 CFR § 173.430 Defoaming agents).

The information included in this publication reflects our up-to-date knowledge. It describes the application and basic parameters of the products, and is given as estimate values. We reserve the right to make any changes as a result of technological progress or developments. The data should not be interpreted as guaranteed specific product qualities. The health and environmental requirements, as well as user safety instructions, are included in material safety data sheets, available at request. Guaranteed quality parameters are included in Technical Product Specifications. The sale of products included in this publication is subject to the General Sales Terms and Conditions at PCC Exol SA.

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Taking care for the environment, this publication of PCC Exol SA was printed on Cocoon Silk - an ecological both side coated matt paper. This paper is made of 100% wastepaper by an environment-friendly technology. FSC速 sources.

TEXT PAGES Cocoon Silk

Brand Grammage

200

Number of pages

COVER PAGES Cocoon Silk

Brand Grammage

250

Number of pages

PUBLICATION Size (cm)

21 x 29.7

Quantity

100 200

By using Cocoon Silk rather than a non-recycled paper, the environmental impact was reduced by:

15 2 20 541 34 24

kg of kg CO2 and greenhouse gases km travel in the average European car litres of water kWh of energy kg of wood

Carbon f ootprint data evaluated b y Labelia C onseil in a ccordance with t he B ilan Carbone速 methodology. Calculations are based on a comparison between the recycled paper used versus

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www.pcc-exol.eu

PCC Exol SA Sienkiewicza St. 4 56-120 Brzeg Dolny Poland www.pcc-exol.eu phone: +48 71 794 31 68 fax: +48 71 794 25 50 industrial.application@pcc.eu

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