432369
Dimer acid, hydrogenated
average Mn ~570
Sinónimos:
Fatty acids, C18 -unsatd., dimers, hydrogenated, Hydrogenated C36 dimer fatty acid
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About This Item
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form
liquid
Quality Level
mol wt
average Mn ~570
impurities
<1 wt. % monomer
<2 wt. % trimer
refractive index
n20/D 1.477 (lit.)
viscosity
8,000 mPa.s(25 °C)(lit.)
acid number
190‑198 mg KOH/g
iodine value
<10
transition temp
pour point ~0 °C
density
0.95 g/mL at 25 °C (lit.)
General description
Dimer acid, hydrogenated is a fatty acid with 36 carbon atoms. It consists of a cyclohexene ring which can be synthesized by clay-catalyzed dimerization at 230-250°C.
Improves flexibility, toughness, impact resistance, dyeability and hydrolytic stability of polymers.
Application
Comonomer in polyesters, polyamides and polyurethanes.
Dimer acid, hydrogenated can be used as a corrosion inhibitor for the protection of lead metal substrates. It can also be used in polyamide based hot melting adhesives as a thermoplastic polymer for electronic boards, textiles and packaging systems.
Storage Class
10 - Combustible liquids
wgk_germany
WGK 1
flash_point_f
572.0 °F - open cup
flash_point_c
300 °C - open cup
ppe
Eyeshields, Gloves
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Lower purity dimer acid based polyamides used as hot melt adhesives: synthesis and properties
Freitas RFR, et al.
Journal of Adhesion Science and Technology, 29(17), 1860-1872 (2015)
Hydrogenated dimer acid as a corrosion inhibitor for lead metal substrates in acetic acid
De Keersmaecker M, et al.
Journal of the Electrochemical Society, 162(4), C167-C179 (2015)
Study of liquid-crystalline behaviour of aliphatic-aromatic polyamides derived from castor oil based dimer acid by DSC
Khare K, et al.
Indian Journal of Advances in Chemical Science, 2(1), 89-94 (2013)
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