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SPECIAL AND COMPREHENSIVE REVIEW

Research progress of polyurea elastomers

1
Jin Shuhan , Liang Wei 2
(1. Daqing Chemical Research Center, Daqing 163000, Heilongjiang, China;
2. Research Institute of PetroChina Daqing Refining and Chemical Company, Daqing 163411, Heilongjiang, China)

Abstract: Polyurea elastomer is a kind of high-performance new polymer material with excellent
properties such as high strength, high toughness, wear resistance, and corrosion resistance, as well as adhesive
properties and energy absorption. It has become one of the important materials for achieving efficient and
lightweight protection. This article first reviews the synthesis and modification of polyurea elastomer, focuses on
introducing its research progress in various application fields, and looks forward to its development prospects.
Key words: polyurea elastomer; synthesis; modification; application field
Classification number: TQ323.8 Article number: 1009-797X(2026)01-0001-09
Document code: B DOI:10.13520/j.cnki.rpte.2026.01.001

Polyurea elastomers are polymers containing aromatic polyurea, the second generation of aliphatic
repeating urea groups (-NH-CO-NH-) in their polyurea, and the third generation of polyaspartic
main chains, featuring multiple functionalities such ester polyurea (aspartic polyurea). The domestic
as explosion resistance, impact resistance, wear market for aspartic polyurea is experiencing rapid
resistance, waterproofing, and energy absorption. development. From a production volume of less than
With high solid content and low VOC content, 1 ton in 2009, it surpassed 4,000 tons in 2021, and is
they are widely used in daily life, transportation, expected to exceed 5,000 tons in 2023.
industry, and national defense, making them Aromatic polyurea is composed of aromatic
indispensable materials for the national economy isocyanate (Component A) and polyol and amino
and defense industry. Research on polyurea synthesis chain extender (Component R). Due to the fact that
began in the 1960s. In 1995, Huang Weibo's team the reactivity of primary amines with isocyanate
introduced polyurea technology to China, and it in the reaction system is much higher than that of
was commercially used in the country in 1999. hydroxyl groups with isocyanate in the polyurethane
With the innovation of production technology and system, the reaction between isocyanate and
optimization of quality for polyurea elastomers, they moisture in the air is reduced, making the polyurea
have been widely used in various industries such as coating less prone to issues such as bubbles and
machinery, electricity, chemical engineering, and pinholes. However, the high reactivity also leads to
construction. This article focuses on the development problems such as excessively fast reaction speed,
of polyurea elastomers in recent years. short gel time (3~5 s), poor adhesion, and short
service life. The presence of rigid aromatic rings
1 Research on polyurea elastomer in the hard segments of the molecular chain brings
materials
1.1 Development of polyurea elastomers
Biography: Jin Shuhan (1990-), female, master's degree and
Polyurea elastomers have evolved into three senior engineer. Her main research interests include refining
generations, including the first generation of additives and new materials.

Vol.52，2026 ·1·