PRELIMINARY PRODUCT DATA SHEET Tegomer® H-Si 2311 Chemical structure CH3 HO (CH2)m Si CH3 O CH3 Si n (CH2)m OH CH3 Tegomer ® H-Si 2311 is a linear organo-functional polysiloxanes. Due to the primary hydroxy end groups Tegomer® H-Si 2311 can be used as reactive component in suitable polymers. Storage stability Minimum 12 months in originally sealed drums at room temperature. Physical properties • • • • • • functional groups functionality no. of repeating units molecular weight appearance solubility primary hydroxy groups 2 approx. 30 n approx. 2500 g/mol clear liquid most common organic solvents Application By the reaction of hydroxy end groups Tegomer® H-Si 2311 can be introduced permanently in polyurethanes or other suitable polymers. Preliminary specification • • • • • • hydroxyl value acid value GC content Hexenol water density at 25 °C viscosity at 25 °C 40 - 50 mg KOH/g DIN EN ISO 3682 < 0.5 mg KOH/g < 0.1 % < 0.05 % DIN 51777 DIN 51757-4 0.94 - 0.98 g/ml DIN 53015 70 - 105 mPas Benefits Due to the reactive modification typical properties of a siloxane are introduced to the polymer resulting in: • improved flexibility, even at low temperatures • tack-free properties by release effect • improved melt flow rates during processing • improved moulding flow Dosage The amount used depends on the required properties. The concentration can range from 3 - 30 weight-% based on polymer. Registration status The active ingredient of Tegomer® H-Si 2311 is listed in the following chemical inventories: EINECS, TSCA, DSL, MITI Packaging plastic canister 25 kg steel drum 200 kg Issue date 07/01. The technical advice, technical data or recommendations are given to the best of our knowledge but carry no guarantee or acceptance of responsibility. This data sheet becomes invalid as soon as a new edition has been published. Please contact us for the latest edition. Tego Chemie Service GmbH Goldschmidtstrasse 100 D-45127 Essen Tel.: +49 (0)201/173-2222 Fax: +49 (0)201/173-1939 www.tego.de · · · · ·
© Copyright 2024 ExpyDoc
