Speciality additives for PVC

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Lydia Maryann Powell
5 years ago
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1 Reasons to buy Wide ranging effects Internal and external lubricants Technical expertise Speciality additives for PVC At the heart of better plastics

Speciality additives for PVC Croda offers a comprehensive range of internal and external additives to improve the properties of PVC and other polymers.

plasticisers in various systems. An additive can be classed as either an internal or external lubricant each providing different characteristics during polymer processing.

2 Speciality additives for PVC Croda offers a comprehensive range of internal and external additives to improve the properties of PVC and other polymers. As well as being high performance lubricants, the range of additives from Croda can also be used effectively as dispersion aids for pigments, anti-static and anti- fogging additives and speciality plasticisers in various systems. An additive can be classed as either an internal or external lubricant each providing different characteristics during polymer processing. Choosing an additive depends upon the polymer formulation, processing technique and final application. Dosing levels are usually between 0.5% and 2% inclusion and can be added directly to the resin or via a suitable masterbatch. This is dependent upon the formulation, final application and effect required. External additives External additives provide metal release and particulate flow properties in the melt. External additives work at the metal / polymer surface interface to reduce friction to enable the polymer to slide. They are active in both the melt phase and the solid phase and can help deliver: l Lower friction between the melt and processing surface l Improved mold release l Reduced adhesion of resin Internal additives Internal additives are designed to be highly compatible with the PVC polymer matrix, helping reduce friction from within the melt. They are active in the molten phase and can help deliver: l Lower melt viscosity l Improved flow l Better mold filling l Reduced energy consumption 2

Lubrication / Mold Release Virgin PVC generates high frictional heat during processing which can lead to stability problems and poor performance.

As well as improving polymer performance, our products are designed to optimise processes by improving flow and aiding mold release.

3 Lubrication / Mold Release Virgin PVC generates high frictional heat during processing which can lead to stability problems and poor performance. Choosing a PVC lubricant from the range below will help improve flow by lowering melt viscosity and reducing friction between the melt and machine surfaces. As well as improving polymer performance, our products are designed to optimise processes by improving flow and aiding mold release. Choosing the right additive for your polymer can improve your polymer process. Key Benefits l Increased output efficiency l Minimised machine wear l Reduced energy consumption l Consistent mold release l Improved surface finish l Less rejects and waste Physical form at 25 C Raw material origin Internal/ External Primary effect Atmer TM 121 Atmer 1006 * Glycerol ester Glycerol ester Liquid Liquid Non-vegetable Vegetable Internal Internal Friction, dispersion aid Atmer 1010 Glycerol ester Paste Vegetable Internal Effective internal additive particularly useful in plasticised PVC film providing good flow, surface finish and clarity. Can also improve dispersion of pigments and fillers Atmer 1440 Glycerol ester Paste Non-vegetable Internal Cithrol TM EGDS Crodamide TM EBS Ethylene glycol distearate Ethylene bis stearamide Pastille Vegetable Internal/ External Powder/ microbead Crodamide ER Erucamide Powder/ microbead/ bead/pastille Crodamide OR Oleamide Powder/ microbead/ pastille Friction Non-vegetable External Friction Vegetable External Friction Non-vegetable Internal Friction Crodamide SR Stearamide Powder/bead Non-vegetable Internal Friction Crodamol TM BS Butyl stearate Liquid Vegetable/ synthetic Stearyl stearate 3138 Stearyl stearate Internal Pastille Vegetable Internal/ External Friction Friction Use in rigid PVC extrusion and molding and can be used in clear Use in molding and extrusion as a process lubricant in opaque. Excellent thermal stability Useful for plasticised films and molding Useful for plasticized films and molding Useful for plasticized films and molding Useful in clear extrusion molding and can be used as a secondary plasticiser in PVC plastisols and as an effective dispersion aid for pigments and fillers Excellent general purpose lubricant which enhances flow properties and improves surface finish *Only available in Asia Only available in USA Vegetable grade also available 3

Anti-static PVC is a good insulator and has the ability to support high static charge.

Key Benefits l Decreased static build-up in the polymer l Decreased attraction of dust, leading to superior quality and appearance of the part l Reduced risk of electric shock to employees and

Vegetable Anti-static additive for flexible PVC Atmer 154 Alkoxylated fatty acid ester UV Protection Liquid Vegetable Internal anti-static additive for flexible PVC Atmer 190 Alkyl sulphonate

protection. Unlike the commonly used organic UV absorbers, the stable metal oxide dispersions are proven to deliver low migration and permanent UV protection.

4 Anti-static PVC is a good insulator and has the ability to support high static charge. The Atmer range of anti-static additives can be added to the polymer in the melt phase or via masterbatch to give anti-static benefits during processing and handling. Key Benefits l Decreased static build-up in the polymer l Decreased attraction of dust, leading to superior quality and appearance of the part l Reduced risk of electric shock to employees and consumers Control Atmer 129 Atmer 154 Figure 1: Anti-static effect of Atmer 129 and Atmer 154 in flexible PVC at 3 phr Physical form at 25 C Raw material origin Atmer 129 Glycerol ester Microbead Vegetable Anti-static additive for flexible PVC Atmer 154 Alkoxylated fatty acid ester UV Protection Liquid Vegetable Internal anti-static additive for flexible PVC Atmer 190 Alkyl sulphonate Pastille Synthetic Anti-static additive for non-transparent, rigid PVC In sheet, film and bottle packaging, the unique patented technology of the Solasorb TM range provides superior dispersion and UV protection. Unlike the commonly used organic UV absorbers, the stable metal oxide dispersions are proven to deliver low migration and permanent UV protection. The use of Solasorb can aid colour dispersion and preserve colour intensity over time, helping to maintain a constant colour of an article even after prolonged exposure to sun light. Key Benefits l Superior UV absorption and colour protection when compared to metal oxide powders l Reduced re-agglomeration due to stable optimised dispersion l UV absorption in the same order as organic UV absorbers l Permanent, non-migratory and non-degrading Physical form at 25 C Raw material origin Solasorb UV 100 TiO 2 dispersion White liquid Inorganic mineral Absorbance in the nm range Solasorb UV 200 ZnO dispersion White liquid Inorganic mineral Wide ranging UV absorbance 4

Anti-Fog The Atmer range of anti-fog additives work by migration to the polymer surface allowing condensed water droplets to spread into a continuous and uniform transparent layer on the film.

5 Anti-Fog The Atmer range of anti-fog additives work by migration to the polymer surface allowing condensed water droplets to spread into a continuous and uniform transparent layer on the film. The range includes additives for both food wrap and agricultural films. Food Wrap l Improved transparency of the packaging and durability of the contents l Improved presentation of food and customer appeal Agricultural films l Improved light transmission resulting in higher plant growth rates l Reduced burning of plants and crop spoilage l Reduced water dripping Physical form at 25 C Raw material origin Atmer 103 Sorbitan ester Microbead Vegetable Non-vegetable * Recommended for use in agricultural films Atmer 121 Glycerol ester Liquid Non-vegetable Recommended for use in food wrap Atmer 645 * Proprietary blend Liquid Vegetable/Synthetic Recommended for use in food wrap Atmer 674 * Proprietary blend Liquid Vegetable/Synthetic Recommended for use in food wrap Atmer 1006 Glycerol ester Liquid Vegetable Recommended for use in food wrap Atmer 1010 Glycerol ester Paste Vegetable Cling in food wrap, used in conjunction with Atmer 116 * Only available in USA Only available in Asia 5

Plasticisers Croda s range of speciality plasticisers work by solvating the PVC molecules, reducing intermolecular forces resulting in improved flexibility in the solid phase.

Physical form at 25 C Raw material origin TM 3019 Di-fatty acid ester Liquid Vegetable/Synthetic Cables, gaskets, upholstery 3114 Polyadipate ester Liquid Vegetable/Synthetic Coated fabrics, food

6 Plasticisers Croda s range of speciality plasticisers work by solvating the PVC molecules, reducing intermolecular forces resulting in improved flexibility in the solid phase. Monomeric Plasticisers l Low temperature flexibility l Low viscosity l Phthalate free Polymeric plasticisers l Low extractability (water, solvent, oil and detergent) l Low volatility l Low migration Physical form at 25 C Raw material origin TM 3019 Di-fatty acid ester Liquid Vegetable/Synthetic Cables, gaskets, upholstery 3114 Polyadipate ester Liquid Vegetable/Synthetic Coated fabrics, food wrapping, surgical tapes 3142 Polyazelate ester Liquid Vegetable/Synthetic Flexible pipes, conveyor belts, oil resistant 3155 Polyadipate ester Liquid Vegetable/Synthetic Electrical tapes, inks, roofing films 3157 Polyadipate ester Liquid Vegetable/Synthetic Electrical tapes, protective clothing, crash pads 3159 Polyadipate ester Liquid Vegetable/Synthetic Can coating, conveyor belts, crash pads, NBR ATBC Citrate ester Liquid Synthetic Food contact including plasticised PVC 6

Case St udy delivers coated fabrics for oilfield protective clothing Croda were approached by a customer looking for a plasticiser to use in coated fabrics in oilfield protective clothing.

7 Case St udy delivers coated fabrics for oilfield protective clothing Croda were approached by a customer looking for a plasticiser to use in coated fabrics in oilfield protective clothing. The customer had experienced problems with traditional phthalates migrating out of the fabric when in contact with oils causing the fabric coating to crack dramatically, which reduced the working life of the clothing. From the table below the customer was able to identify 3155 and 3114 as the products with the best oil extraction resistance. As a secondary parameter the customer also stated that they would like good detergent resistance, as the items of clothing could come into contact with them during cleaning. Again using the table they were able to differentiate between 3155 and 3114 based on detergent extraction with 3155 showing improved detergent extraction resistance when compared to Product Brittle point Volatillity (%) Detergent ( C) extraction (%) Mineral oil extraction (%) Soybean oil extraction (%) Petrol extraction (%) Dyn. viscosity (cp) DOP Excellent Moderate Fair 7

8 Further information Croda sales and distribution are coordinated through an extensive worldwide network of associates and agents. For details of your local representative please contact your nearest Croda regional office. Visit our global website at Croda Europe Ltd Tel +44 (0) Croda Inc, USA Tel Croda Singapore Tel Non-warranty: The information in this publication is believed to be accurate and is given in good faith, but no representation or warranty as to its completeness or accuracy is made. Suggestions for uses or are only opinions. Users are responsible for determining the suitability of these products for their own particular purpose. No representation or warranty, expressed or implied, is made with respect to information or products including, without limitation, warranties of merchantability, fitness for a particular purpose, non-infringement of any third party patent or other intellectual property rights including, without limit, copyright, trademark and designs. Any trademarks identified herein are trademarks of the Croda group of companies Croda Europe Ltd 09/14 PAMB015v01 Croda Brasil Tel marketinglatam@croda.com

Crodamide TM Easier processing & handling of polymers

Reasons to buy l l l Optimum slip & anti-block performance Security of supply Consistent product quality Crodamide TM Easier processing & handling of polymers At the heart of better plastics CrodamideTM