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Properties of alkyd polyurethane coatings with hyperbranched alkyd resin

 Last Update: 2020-11-27
 Source: Internet
 Author: User

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A study investigated the effects of overspending on the properties of polyurethane coatings.
Using a combination of trihydroxymethyl propane, single-season glycol as a core material, and dehydrated castor oil fatty acids and coconut oil fatty acids as a chain-expanding agent of 2,2-double (hydroxymethyl) propylene acid (DMPA), a one-step synthesis of overspending alkyd acid resins.
with the increase of chain tangles, the performance is better
by changing the amount of DMPA in the resin formulation, a series of overspending aolic acid resins
China
. In february laurel butyl tin as a catalyst, after reaction with hexamethyl isocyanate trimerium, the alicic acid resin is converted into a polyurethane coating. The effects of branching and polymerization chain tangles on the glass transition temperature T g of aolate polyurethane coating (APUC) were studied. This APUC's gloss in gloss, accelerated luster hold under QUV radiation, natural outdoor exposure conditions, mechanical and corrosion resistance performance is enhanced with the increase of polymer chain tangles, i.e., tightness or higher branching order in alicic acid resin structures.
the study was published last month: Applied Polymer Science, Volume 135, Issue 9, March 5, 2018.

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