A review on the applications of polyurea in the construction industry

Abstract

Polyurea has drawn the attention of construction activists and engineers as a modern building material due to its unique structure, unique properties, and relatively easy application even in hard‐to‐reach places. A wide range of excellent properties such as durability and high resistance against the atmospheric, chemical, and biological factors have made this polymer a superb option for the construction industry. The ability to reinforce the building materials and structures coupled with excellent resistance against corrosion and abrasion has dramatically increased the popularity of polyurea as a protective coating in the construction industry. In these industries, sealing and insulating the different floors and surfaces have also been considered using the polyurea coating. Polyurea coating technology is a green technology without pollution and toxicity to the environment, which is an essential advantage over many competing technologies in the construction industry. The use of polyurea composite systems to optimize various properties such as mechanical and thermal properties in addition to reducing the costs and economic burden is increasing. In the present paper, multiple applications of polyurea‐based materials in the construction industry are discussed.

A dynamic polyurea network with exceptional creep resistance

“…† A-PU 1.2 s put up rather high average adhesion strength to steel (14.43 AE 1.39 MPa) and glass (12.75 AE 0.34 MPa), which is comparable to the thermosetting polyurea adhesives. 51 For steel substrates, the unreacted amino groups and nitrogen atoms can also coordinate with metallic elements, like Fe and Cr, which may provide additional adhesive forces (Fig. 4a).…”

Nonaqueous Emulsion Polycondensation Enabled by a Self‐Assembled Cage‐like Surfactant

“…[73] Polyurethanes (PUT) and polyurea (PU) are widely used polymer materials in coatings, adhesives, medical science, manufacturing, and construction industries. [75,82,83] These polymers are produced by condensation of di/poly-isocyanates with di/poly- Chemistry-A European Journal alcohols/amines in suitable conditions. Efforts to prepare PUT and PU nanoparticles/capsules via different mini-emulsion polymerization techniques were reported.…”

High‐performance thermoplastic polyureas via a non‐isocyanate route from urea and aliphatic diamines

“…Polyureas (PUrs) are polymers bearing urea groups in the backbones, which can form bidentate hydrogen bonds between polymer chains 1 . Compared with polyurethanes which have monodentate hydrogen bonds, PUrs show higher values of polarity, crystallinity, melting point, and rigidity 2,3 . Therefore, PUrs exhibit more excellent properties such as thermal stability, mechanical performance, chemical resistance, and so forth 4 .…”

“…1 Compared with polyurethanes which have monodentate hydrogen bonds, PUrs show higher values of polarity, crystallinity, melting point, and rigidity. 2,3 Therefore, PUrs exhibit more excellent properties such as thermal stability, mechanical performance, chemical resistance, and so forth. 4 Conventionally PUrs are synthesized by reacting diisocyanate with diamine, which has brought us many useful PUrs in decades of practice.…”