Yuan, Mengjie; Wang, Shuai; Li, Guixun; He, Suqin; Liu, Wentao; Liu, Hao; Huang, Miaoming; Zhu, Chengshen published the artcile< UV curable hyperbranched polyester polyurethane acrylate for hydraulic machinery coating>, Related Products of 112-63-0, the main research area is polyester polyurethane acrylate hydraulic machinery coating.
The content of river cement and sand in our country is relatively high, and the surface of hydraulic machinery in hydropower stations is often subject to fatigue damage and erosion. This topic is mainly used to solve the problem of abrasion and corrosion of hydraulic machinery coatings. UV curable polyurethane acrylate (PUA) can be quickly solidified into film and directly coated on the surface of hydraulic machinery with excellent anti-wear, adhesion properties and low cost. In this work, a hyperbranched polyester synthesized by the stepwise reaction of trimethylolpropane (TMP) and dimethylolpropionic acid (DMPA) was as a ‘nucleus’, and the polyurethane prepolymer was obtained by grafting IPDI and PTMG. The UV-curing hyperbranched polyester polyurethane acrylate (PUA-1) was prepared by capping with HEA. Another UV-curing hyperbranched polyester polyurethane acrylate (PUA-2) was prepared as comparison by using TDI and PTMG as the main raw materials. Fourier Transform IR Spectrometer, 1H-NMR spectroscopy, Gel Permeation Chromatog., thermogravimetric anal. and dynamic thermomech. anal. were used to characterize its structure and properties. The wear rate of the two hyperbranched polyesters measured by the underwater steel ball method is below 3%, The swelling rate of PUA-1 is between 250%-300%, and the swelling rate of PUA-2 is around 260%, indicating that PUA-2 has better solvent resistance than PUA-1, and the internal structure of the film is more dense. TG anal. showed that the thermal stability of the two materials was good.
Materials Research Express published new progress about Abrasion. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics