1、Polyimide

Preparation Methods for Polyimide-Modified Organic Silicon Resins Polyimide-modified organic silicon resins can be prepared via multiple methods, including solution polymerization, melt polymerization, and interfacial polymerization.

2、Polyimide

In this study, a series of polyimide-modified epoxy resin composite films (NPMFs) was developed and applied as protective coatings. The polyimide-modified epoxy resin was designed through cross-linking reactions between epoxy resin and polyimide, forming the film material.

3、Rigid and crosslinkable polyimide curing epoxy resin with enhanced

To increase comprehensive performance and enlarge the applicability of resin materials in thermodynamics, researchers have started to focus on the modification of epoxy resin. The mainstream method is to mix organic rubber elastomers into epoxy resin.

4、Microfabrication of functional polyimide films and microstructures for

Polyimides are widely used in the MEMS and flexible electronics fields due to their combined physicochemical properties, including high thermal stability, mechanical strength, and chemical...

Application of Polyimide Modified Organosilicon Resin Adhesive

PI is a high-performance heat-resistant electrical insulation material with particularly excellent resistance to atomic radiation (electrons and neutrons).

Polyimide

Among them, the resin binder is one of the most important basic components of organic lubricant coatings, which largely determines the adhesion, strength, thermal stability and other basic properties of the coating.

Facile fabrication of titanium atomic modification polyimide‑silicone

We synthesized a novel bismaleimide silicone oligomer and matched titanium-containing phthalate curing agents. Titanium is introduced into the coating by moisture curingand thermal curing. The as-prepared coating possess high temperature resistance, strong adhesion, and great hardness.

Performance of high

The modified PI resin system exhibited good thermal stability, excellent heat resistance, and high toughness. The results indicated that the TPI/PI blends maintained the curing behavior and characteristics of the PI oligomer.

Melt fluidity and thermal property of thermosetting siloxane

That led to inorganic silica-like structures formed in situ, and inter-connected by organic polyimide segments. This organic/inorganic hybrid characteristics endowed polyimide resins with enhanced thermal property.

Linear polysilsesquioxane hybrid thermosetting polyimide as antioxidant

Heat resistant linear polysilsesquioxane hybrid thermosetting polyimide was prepared. The hybrid resin was applied on surface of organic composite as antioxidant coating. The prepared composite had excellent long-term thermo-oxidative stability at 400 °C.

Abstract: Polyimide (PI) is a high-performance thermosetting polymer with excellent mechanical properties, electrical insulation, and thermal resistance. In recent years, due to its superior chemical stability and high-temperature resistance, PI has been widely applied in aerospace, electronic packaging, automotive industries, and other fields. traditional PI materials suffer from high costs and challenging processing requirements. Consequently, modifying PI to reduce costs and enhance performance has become a research hotspot. This paper primarily explores the research progress and application prospects of polyimide-modified organic silicon resins.

Keywords: Polyimide; Organic Silicon Resin; Modification; Performance Enhancement; Application Fields

1. Introduction Polyimide (PI) is extensively used in aerospace, semiconductor manufacturing, microelectronic devices, and other fields due to its outstanding mechanical properties, electrical insulation, and heat resistance. Despite these exceptional physicochemical properties, PI’s high production costs and complex processing limit its broader applications. To address these issues, researchers have attempted various methods to modify PI to improve cost efficiency and performance. Among these, organic silicon resin, as a novel polymer material with excellent thermal stability, weather resistance, and electrical insulation, serves as an ideal modifier. This paper reviews polyimide-modified organic silicon resins, analyzing their modification mechanisms, performance enhancements, and applications across different domains.

2. Preparation Methods for Polyimide-Modified Organic Silicon Resins Polyimide-modified organic silicon resins can be prepared via multiple methods, including solution polymerization, melt polymerization, and interfacial polymerization.

2.1 Solution Polymerization In solution polymerization, PI monomers are first dissolved in an appropriate solvent, followed by the addition of an initiator to trigger the polymerization reaction. This method allows precise control over molecular weight and distribution but requires specialized equipment and conditions.

2.2 Melt Polymerization Melt polymerization involves heating polymer monomers to a molten state and then conducting the reaction under inert gas protection. This approach yields uniform and continuous polymer chains but necessitates high temperatures.

2.3 Interfacial Polymerization Interfacial polymerization occurs at the interface between two immiscible phases, such as water-air or oil-water interfaces. This method can produce polymers with specialized functions, such as superhydrophobicity and self-healing properties.

3. Performance Enhancements of Polyimide-Modified Organic Silicon Resins Through modification, the comprehensive performance of PI composites is significantly improved.

3.1 Mechanical Properties The modified PI composites exhibit higher tensile strength and enhanced toughness, attributed to the high elasticity and fatigue resistance of organic silicon resin. Additionally, modifications improve hardness and wear resistance, making them suitable for harsh environment applications.

3.2 Electrical Insulation Properties The introduction of organic silicon resin effectively improves PI’s electrical insulation. The presence of siloxane bonds reduces the dielectric constant, minimizing capacitive effects and enhancing insulation. Furthermore, reduced water absorption due to silicon resin further boosts electrical performance.

3.3 Thermal Resistance Adding heat-resistant organic silicon resin substantially improves the thermal stability of PI composites. Siloxane bonds elevate the glass transition temperature, ensuring stable performance under high temperatures.

4. Application Fields of Polyimide-Modified Organic Silicon Resins Due to their优异性能, polyimide-modified organic silicon resins hold broad application potential across multiple domains.

4.1 Aerospace In aerospace, these composites are used in critical components like aircraft engine thermal protection systems and satellite antenna radomes. These parts must maintain stability under extreme temperatures and pressures, which the modified PI composites achieve.

4.2 Electronic Packaging In electronic packaging, they serve in high-frequency signal transmission lines and integrated circuit encapsulation. These components require stable performance under high speed and voltage, met by the modified PI composites.

4.3 Automotive Industry In automotive applications, they are employed in engine parts and transmission systems. These components must withstand high temperatures and friction, which the modified PI composites satisfy.

5. Conclusion and Outlook polyimide-modified organic silicon resins offer卓越的机械性能, electrical insulation, and thermal resistance at a relatively low cost. These advantages position them for widespread use in aerospace, electronic packaging, and automotive industries. challenges remain, such as complex modification processes and high costs. Future research should focus on optimizing processes and reducing costs to enhance the practical application value of these materials.