Meng, Lingqiao; Shi, Xingzhao; Zhang, Ruilong; Yan, Long; Liang, Zhaopeng; Nie, Yijing; Zhou, Zhiping; Hao, Tongfan published the artcile< Preparation and properties study of waterborne polyurethane synthesized by mixing polyester diols and isocyanates>, Formula: C19H34O2, the main research area is polyester diol isocyanate polymerization; waterborne polyurethane preparation.
In view of environmental protection requirements, it is an inevitable trend for waterborne coatings to replace traditional coatings. Waterborne polyurethane (WPU), a kind of typical resin used in coatings, has become a research hot topic of waterborne coatings because of its advantages, such as non-polluting, safe and reliable, excellent properties, good compatibility, and easy modification. In this article, solvent-free WPU is prepared by mixing 4,4′-dicyclohexylmethane diisocyanate/isophorone diisocyanate (HMDI/IPDI) and polycarbonate diol/ Polycaprolactone diol (PCDL/PCL). Through the comparison of the properties of the polymer, the best amount of raw materials was determined Specifically, R = 1.35 (R is NCO/OH ratio), the content of dimethylolpropionic acid (DMPA) is 5.5%, the content of trimethylol propane (TMP) is 2.5%, the mole ratio of HMDI/IPDI is 2:1, the mole ratio of PCDL/PCL is 2:1, and the preeminent WPU shows the excellent thermal stability, the contact angle of 118.04°, the hardness is H. The chem. structures and rough surface morphologies of the WPU films were characterized by FT-IR, TG, AFM, and SEM, resp. Therefore, considering the film properties, and the low cost, simple, and green process, this research will offer the possibility of application of this free-solvent WPU in industrial production and large-scale application.
Journal of Applied Polymer Science published new progress about Absorption. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics