Bench Screening of Novel Anti-Wear Alternatives to ZDDP

CHEMTURA – a new brand at the Oils and Additives market
The chemical
company
of the future

Our History
Textile machinery, dyes, polymer additives, lubricants, agricultural chemicals, urethanes…. Specialized chemicals
Rubber, rubber components, industrial rubber products, footwear, tires, synthetic rubber, agricultural chemicals
Bromine, bromine derivatives, combustion inhibitors, agricultural chemicals, polymer additives, pool chemicals, household chemicals, fluorine derivatives, optical monomers
Carbon for tires, plasticizing agents, stearates, stabilizers, silicones … Specialized chemicals
(Crompton Corporation)
Kaufmann Holdings was acquired in 2007. Ester lubricants – ester polyols + ready-to-use synthetic fluids
Ordinary and specialized phenolic antioxidants
Phosphates – non-combustible fluids (formerly Ciba)

Our Additives Trademarks
Naugalube® and Naugard® antioxidants;
Calcinate™, Hystrene® and Industrene® anti-wear agents;
Lobase®, Hybase® and Petronate® sulfonate detergents;
Synton® high-viscosity polyalphaolefins (PAO);
G-2000™ high-quality lubricants;
Durad® additives based on organic phosphates;
Reolube® non-combustible lubricants and fluids (phosphates);
Reomol® and KP-140® special additives (phosphates);
ANDEROL®, AOSyn®, PQ® special lubricants;
Hatcol® esters and ester lubricants (ready-to-use and basestocks);
Royco® aircraft lubricants.

RUSSIA

Zinc is the base for the formation of tribolayers (Zinc Polyphosphate)
ZDDP is an antioxidant
ZDDP is a synergist for Mo-containing additives
Zinc dialkyldithiophosphate (ZDDP)
- more than simply anti-wear protection
Willermet et al, Trib. Inter., 5/95

Cumylhydroperoxide (CHP)

Effect of CHP on anti-wear properties
of engine lubricants (four-ball test machine)
Ди, мм
ASTM D 4172

Effect of CHP on anti-wear properties
of engine lubricants
(Cameron-Plint)
Ди, мм

Ashless P-containing additives

Phosphorus-free additives
(All contain sulfur - SOx, sulfate ash)

New anti-wear additives
Imidazolidine thion
Cyclic thiourea
Oxamide
Hydrazide of succinic acid
Imidazolidine thion

Silicon-containing compounds: Silanes/Siloxanes
Octyltriethoxysilane
Bis-(triethoxysilyl) ethane
Bis-(truethoxysilyl) propyl disulfide

Anti-wear properties of engine lubricants containing silanes (Cameron-Plint)
Max. fin wear depth (uм)
Silanes & ZDDP synergy!

Anti-wear additives based on esters
MLA-2837
Ashless, no S & P
Synergism with ZDDP
Free-flowing clear liquid
Non-corrosive

Sulfur-containing anti-wear additives
MLA-2877
Thiocarbamate derivative
12 % S
Free-flowing yellow liquid
Non-corrosive
MLA-2871
S-containing heterocycle
Synergism with ZDDP
22 % S
Free-flowing yellow liquid
Non-corrosive

Four-ball friction machine
ASTM D 4172
1 additives weight %
(or as stated)
Ди, мм
63x
73x
14x
Max. fin wear depth (uм)

Cameron-Plint tribometer
1 additives weight %
(or as stated)
Fin wear depth (uм)
91x
12x
57x

Selection criteria
Use conditions
Activation temperature/ pressure
Price/Quality
Corrosive power
Volatility
Color
Solubility
Compatibility with sealants
Smell
Physical condition
Toxicity
Compatibility with packaging
Duration of action
Multifunctionality
AO; AF; contribution to EP