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Harcros Organics Products T-Det Block Polymers

Harcros Organics Products T-Det Block Polymers. Block Polymers. Nonionic surfactants that are composed of monomer units of ethylene oxide and propylene oxide. EO and PO are added in amounts to create certain molecular weights and certain characteristics.

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Harcros Organics Products T-Det Block Polymers

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  1. Harcros Organics Products T-Det Block Polymers

  2. Block Polymers • Nonionic surfactants that are composed of monomer units of ethylene oxide and propylene oxide. EO and PO are added in amounts to create certain molecular weights and certain characteristics. • Stable in both cationic and anionic surfactant systems.

  3. T-Det Surfactants T-Det EPO 61, 62, 64, 68 surfactants: polymer is po:eo blocks to create desired MW. • Compete with Pluronic L series from BASF. • All start with 1750 MW PO then the series is 10%, 20%, 40% and 80% EO by weight. The more EO the higher HLB. (More water loving) • Act as emulsifiers w/o and o/w • Good dispersants • Stable over a wide pH range. • Stable in salt solutions. Good hard water tolerance.

  4. T-Det Reverse Polymers T-Det 25R2 reverse surfactants: Propylene oxide is outside EO:PO creates a hydrophillic polymer (more water loving)Competes with Pluronic 25R2 • Exhibits lower foaming • These surfactants are used often for soil and turf wetting. (water management) • Are better defoamers • Exhibit reduced gelling tendencies in water

  5. T-Det XD and XH • XD is butanol that is propoxylated then ethoxylated. XH is more ethoxylated to a higher molecular weight. More water loving. • XD has a lower melt point. • Competes with Tergitol XD and XH • Improves W/O Ag emulsifiable concentrates. • Good emulsifier for alkyd resins used in coatings.

  6. T-Det LF Surfactants T-Det LF Surfactants: alkoxylated alcohols. (not all alkoxylated alcohols are approved for use in pesticide formulations) • LF-505 low foaming wetting agent with high cloud point and hot water stable. • LF-416 is a more moderate foamer and lower cloud point. • Both series are excellent wetting agents and rinse aids. • Soluble in many solvents and do not tend to gel.

  7. Conclusions • All are stable with cationic and anionic surfactants. • EPO Series is very hard water tolerant and stable over a wide pH range. • XH and XD good oil in water emulsifiers. • LF Series low foaming and high cloud points.

  8. T-Det Surfactants Thank you for your attention!

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