Polyurethane electronic adhesive is an adhesive based on polyurethane chemical system specially used in the electronics field. It uses the unique properties of polyurethane materials to achieve strong bonding, sealing and protection between electronic components, and plays an important role in the manufacturing and maintenance of electronic equipment.
In terms of ingredients, polyurethane electronic adhesive is mainly composed of polyurethane prepolymer, curing agent, plasticizer, filler and other additives. Polyurethane prepolymer is the core component of adhesive. It is made by the reaction of polyol and polyisocyanate. Its structure contains a large number of carbamate groups, which gives the adhesive good flexibility and bonding properties. The role of the curing agent is to cross-link with the polyurethane prepolymer to transform the adhesive from liquid to solid to achieve the bonding function. Common curing agents include aliphatic or aromatic polyisocyanates. Different curing agents will affect the curing speed and curing performance of the adhesive. Plasticizers are used to increase the flexibility and plasticity of adhesives, reduce their hardness and brittleness, and improve their adaptability to different materials. Commonly used plasticizers include phthalates. Fillers can improve the physical properties of adhesives, such as increasing strength, reducing costs, and adjusting viscosity. Common fillers include calcium carbonate, talcum powder, and silica. In addition, some additives are added, such as catalysts to accelerate the curing reaction, promoters to increase the curing degree of adhesives, and antioxidants to prevent the aging of adhesives during use and extend their service life.
Polyurethane electronic adhesives have a series of excellent properties. First of all, it has good flexibility, which enables it to effectively buffer the stress caused by temperature changes, mechanical vibrations and other factors when bonding electronic components, and avoid component damage or bonding failure caused by stress concentration. It is especially suitable for bonding electronic components such as flexible circuit boards (FPCs) that require high flexibility. Secondly, it has excellent chemical corrosion resistance and can resist the erosion of a variety of chemical substances, such as common acids, alkalis, salt solutions, and organic solvents, ensuring that the connection parts of electronic equipment remain stable in complex chemical environments. Furthermore, polyurethane electronic adhesives have good electrical insulation properties, which can effectively prevent leakage inside electronic equipment and ensure the normal operation of electronic equipment. In addition, it also has good high and low temperature resistance. It will not become brittle in low temperature environments, nor soften or decompose in high temperature environments. It can adapt to different operating temperature ranges and meet the use requirements of electronic equipment under various environmental conditions.
According to different characteristics and application scenarios, polyurethane electronic adhesives can be divided into various types. According to the curing method, it can be divided into room temperature curing type and heating curing type. Room temperature curing polyurethane electronic adhesives are easy to use and do not require additional heating equipment. They are suitable for on-site maintenance and bonding of some temperature-sensitive electronic components; heating curing types can be quickly cured under heating conditions, improve production efficiency, and are suitable for large-scale industrial production. According to function, they can be divided into general type, thermal conductive type and conductive type. General-purpose polyurethane electronic adhesives have basic bonding and protection functions and are widely used in the assembly of general electronic equipment; thermally conductive polyurethane electronic adhesives are added with fillers with high thermal conductivity, such as aluminum oxide and boron nitride, which can effectively conduct the heat generated by electronic components and reduce the temperature of components. They are often used in electronic equipment that requires heat dissipation, such as power modules, LED lamps, etc.; conductive polyurethane electronic adhesives are added with conductive fillers, such as silver powder and copper powder, so that they have good conductivity and can be used to achieve electrical connections between electronic components, such as in some radio frequency circuits, for connecting antennas and circuit boards.
In the application field, polyurethane electronic adhesives are widely used in the manufacture of electronic equipment. In consumer electronic products such as smartphones and tablets, they are used to bond display screens, batteries, camera modules and other components to ensure that these components are stably connected in a compact space while being able to withstand vibration and impact in daily use. In the field of automotive electronics, it is used for the encapsulation and bonding of electronic devices such as automotive engine control units (ECUs), sensors, and on-board displays. Since cars face harsh environments such as high temperature, humidity, and vibration during driving, the excellent performance of polyurethane electronic adhesives can ensure the reliability and stability of automotive electronic equipment. In the field of aerospace, polyurethane electronic adhesives are used for the connection and sealing of electronic equipment in aircraft, requiring them to have extremely high reliability and resistance to extreme environments, and to be able to work normally under conditions such as low temperature and high radiation in the sky. In addition, in the fields of industrial automation equipment and medical electronic equipment, polyurethane electronic adhesives also play an important role, providing guarantees for the stable operation of electronic equipment.
Compared with other types of electronic adhesives, polyurethane electronic adhesives have unique advantages. Compared with epoxy resin electronic adhesives, polyurethane electronic adhesives have better flexibility and perform better in dealing with temperature changes and mechanical stress; while epoxy resin electronic adhesives have relatively high bonding strength and greater hardness. Compared with silicone electronic adhesives, polyurethane electronic adhesives have stronger chemical corrosion resistance and relatively lower cost; silicone electronic adhesives have better high temperature resistance and electrical insulation properties. In practical applications, it is necessary to select appropriate electronic adhesives based on specific needs and application scenarios.
Report Scope
This report aims to deliver a thorough analysis of the global market for Polyurethane Electronic Adhesive, offering both quantitative and qualitative insights to assist readers in formulating business growth strategies, evaluating the competitive landscape, understanding their current market position, and making well-informed decisions regarding Polyurethane Electronic Adhesive.
The report is enriched with qualitative evaluations, including market drivers, challenges, Porter’s Five Forces, regulatory frameworks, consumer preferences, and ESG (Environmental, Social, and Governance) factors.
The report provides detailed classification of Polyurethane Electronic Adhesive, such as type, etc.; detailed examples of Polyurethane Electronic Adhesive applications, such as application one, etc., and provides comprehensive historical (2020-2025) and forecast (2026-2031) market size data.
The report provides detailed classification of Polyurethane Electronic Adhesive, such as Reactive Hot Melt Adhesive, Two-Component Polyurethane Structural Adhesive, etc.; detailed examples of Polyurethane Electronic Adhesive applications, such as Telecommunication, Intelligent Terminal, New Energy, Others, etc., and provides comprehensive historical (2020-2025) and forecast (2026-2031) market size data.
The report covers key global regions—North America, Europe, Asia-Pacific, Latin America, and the Middle East & Africa—providing granular, country-specific insights for major markets such as the United States, China, Germany, and Brazil.
The report deeply explores the competitive landscape of Polyurethane Electronic Adhesive products, details the sales, revenue, and regional layout of some of the world's leading manufacturers, and provides in-depth company profiles and contact details.
The report contains a comprehensive industry chain analysis covering raw materials, downstream customers and sales channels.
Core Chapters
Chapter One: Introduces the study scope of this report, market status, market drivers, challenges, porters five forces analysis, regulatory policy, consumer preference, market attractiveness and ESG analysis.
Chapter Two: market segments by Type, covering the market size and development potential of each market segment, to help readers find the blue ocean market in different market segments.
Chapter Three: Polyurethane Electronic Adhesive market sales and revenue in regional level and country level. It provides a quantitative analysis of the market size and development potential of each region and its main countries and introduces the market development, future development prospects, market space, and production of each country in the world.
Chapter Four: Provides the analysis of various market segments by Application, covering the market size and development potential of each market segment, to help readers find the blue ocean market in different downstream markets.
Chapter Five: Detailed analysis of Polyurethane Electronic Adhesive manufacturers competitive landscape, price, sales, revenue, market share, footprint, merger, and acquisition information, etc.
Chapter Six: Provides profiles of leading manufacturers, introducing the basic situation of the main companies in the market in detail, including product sales, revenue, price, gross margin, product introduction.
Chapter Seven: Analysis of industrial chain, key raw materials, customers and sales channel.
Chapter Eight: Key Takeaways and Final Conclusions
Chapter Nine: Methodology and Sources.
Learn how to effectively navigate the market research process to help guide your organization on the journey to success.
Download eBook