As we all know, sodium stearate
is slightly soluble in cool water but hot water or ethyl alcohol.
The data used in this publication were taken from the second heating to evaluate the glass transition temperature (Tg) of each copolymer with and without metal stearates
For the first time, we recently found a label that specifies that the calcium stearate
is vegetable-based: http://www.barkleys.ca/mints/
Zinc and calcium stearates
for use as lubricants and pigment dispersants in color concentrates and dry colors.
In comparison, a person who daily consumed 20 vitamin tablets or capsules weighing 1,000 mg each and containing a relatively high magnesium stcarate concentration of 1.5%, would take in under 300 mg per day of stearic acid (and probably far less given that commercial magnesium stearate
typically contains significant quantities of palmitic acid).
[ClickPress, Tue May 21 2019] Due to the increasing demand of the plastic usage in the industry the metallic stearates
are commonly produced by the reaction combining a stearic acid, and metal salts, such as metal hydroxides, metal chloride, metal oxides, and metal hydroxides.
Additives reportedly can replace existing processing aids, which depending on the plastic, can range from primary and secondary antioxidants, nucleating agents in PP, as well as lubricants ranging from metallic stearates
, amides and fatty acid additives used in polyolefins and styrenics to waxes used in PVC.
The SXT 2000 Series of lubricants are blends of metallic stearates
and nonmetallic lubricants, such as ester-based compounds and waxes, that offer improved processing and finished product attributes at a price only marginally higher than that of traditional all-metallic products, according to Ferro.
Products featured in the literature include aluminum silicates, alumina trihydrate, aromatic oils, ASTM reference oils, barium sulfate, blowing agents, calcium carbonate, kaolin clays, fatty acids, gilsonite, iron oxides, magnesium carbonates, magnesium hydroxide, magnesium oxide, microcrystalline wax, naphthenic oils, paraffinic oils, paraffin wax, petrolatums, plasticizers (phthalates), polymers (EPDM, polychloroprene and nitrile), precipitated silica, rubber accelerators, solvents, stearates
, strontium sulfate, sulfur, white mineral oils, zinc dust and zinc oxide.
* For polyester, Synpro zinc stearates
ABG, FRP, S-1056, and D.
MoldWiz INT-33VPE, free of animal derivatives and metallic stearates
, is designed to enhance flow and reduce surface coefficient of friction in polyolefins and styrenic resins.
This proprietary formulation is 100% active and does not contain silicone or metallic stearates
. It is recommended for demanding RTM applications, especially in automotive.