NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 1 Why Diluents ? Thats Why !!!!!!

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 2 Why Diluents ?? High processing viscosities of unmodified liquid epoxy resin systems Impregnating and wetting properties are favourably influenced by reducing the viscosity Larger filler amounts may be used –cheaper formulation –reduce the possible development of heat and shrinkage upon cure Possible Disadvantages; –May sweat out of the binder system Reduced flexibility –Influence the properties of the binder system Hardness Rate of cure Adhesion, Intercoat adhesion Chemical resistance

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 3 Alcohols –Benzylalcohol –Furfurylalcohol –Nonyl phenol –Acceleration effect Phthalates –Dibutylphthalate Hydrocarbon Resins –Necirez-products –Epodil-L Pine-oil Non-Reactive Diluents OH CH 2 -OH

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 4 Reactive Diluents Polypropylene glycol diepoxides –D.E.R. 732P liquid epoxy resin –D.E.R. 736P liquid epoxy resin Trademark of The Dow Chemical Company O O = O O C O Alcoholglycidylethers & esters [ mono- or multi-functional ] –EMS [ Grilonit ] –Prümmer [ Polypox ] –Resolution [ Heloxy, Cardura E-10] –Air Products [ Epodil ] –Etc…

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 5 Reactive Diluents

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 6 Viscosity Cutting Powder 2-EH GE = R 17 C12-C14 AGE = R 24 p-tert. BP GE = R 7 BDDGE, o-CGE, HDDGE = R 3, 6, 18

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 7 General Observations The addition of reactive diluents might have the following effects: –reduced viscosity, –changed surface tension [ wetting, air-release etc. ], –changed reactivity, especially for the mono-functional reactive diluents, –changed solvent resistance, –changed physical strength, –changed linear coefficient of expansion, –changed flexibility / impact resistance, –changed abrasion resistance –......

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 8 Reactive Diluents used by Dow o-Cresyl Glycidyl ether C 12 - C 14 alkyl Glycidyl ether Hexane diol di Glycidyl ether Compromise between Environmental, Hygiene & Safety aspects and performance.

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 9 o-Cresyl Glycidyl ether Typical properties EEW 180g/eq 25 °C

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 10 Hexane Diol Di Glycidyl ether Typical properties EEW 142g/eq Viscosity14 25 °C Total Chlorineca 4 wt%

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 11 C12 - C14 Alkyl Glycidyl Ether Typical properties EEW 280g/eq Viscosity7 25 °C Total Chlorineca 3 wt% Remark : FDA approved for food contact applications

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 12 Viscosity Cutting Power Trademark of The Dow Chemical Company

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 13 Influence on the chemical resistance

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 14 Chemical Resistance D.E.R.321Dist. Water 10 wt% HCl 10 wt% NaOH 10 wt% HAc Xylene Gasoline Destroyed + 23 AromaticIPD-adductDETA-adductPolyamide D.E.R.330Dist. Water 10 wt% HCl 10 wt% NaOH 10 wt% HAc Xylene Gasoline Trademark of The Dow Chemical Company

NEO Chemical Seminar 2007 Toine Dinnissen / March 27th 2007Page 15 Enough Chemistry !