N,N'-m-phenylene dimaleimide, (HA-8/HVA-2/PDM), is a compound with a special chemical structure. In the field of fine chemicals, it is widely used as a cross-linking agent due to its unique properties. N,N'-m-phenylene dimaleimide (isophthalimide) is irreplaceable as a cross-linking agent, mainly due to its unique chemical structure and properties, as well as its excellent performance in specific applications.
Technical indicators:
Appearance
Yellow powder
Melting point
≥196℃
Moisture content
≤0.5%
Ash content
≤0.5%
1. Structural characteristics:
N,N'-m-phenylene dimaleimide molecule contains two maleimide groups, both of which are highly reactive double bonds. This allows it to undergo addition reactions with compounds containing active hydrogen atoms such as amines, alcohols or carboxylic acids. The benzene ring in the isophthalimide structure gives the molecule good stability and rigidity, making it less likely to deform during the cross-linking process, thus ensuring the stability of the cross-linked structure.
2. Cross-linking mechanism:
When N,N'-m-phenylene dimaleimide is used as a cross-linker, its maleimide groups react with active sites on the polymer chain to form covalent bonds. These covalent bonds link different polymer chains together, forming a three-dimensional cross-linked network.
This cross-linked structure can significantly improve the mechanical properties of the polymer, such as tensile strength, impact strength and heat resistance. It also improves the chemical and solvent resistance of the polymer.
3. Excellent thermal stability and chemical stability:
The benzene ring in the isophthalimide structure enhances its thermal and chemical stability, allowing it to maintain a stable cross-linking effect under high temperatures and harsh environments. This stability makes N,N'-m-phenylene dimaleimide an ideal cross-linker in aerospace, automotive manufacturing and other fields that need to withstand high temperatures and mechanical stress.
4. Good processing performance:
N,N'-m-phenylene dimaleimide has good fluidity and permeability during the cross-linking process, and can be evenly dispersed in the polymer matrix to form a uniform cross-linked network.
This processing performance makes it advantageous in manufacturing parts with complex shapes and structures, and can meet the needs of various fine chemical products.
5. Unique cross-linking mechanism:
The cross-linking mechanism of N,N'-m-phenylene dimaleimide is different from other cross-linking agents in that it achieves cross-linking by forming covalent bonds with active sites on the polymer chain, rather than relying solely on physical entanglement or Weak van der Waals forces.
The formation of this strong covalent bond makes the cross-linked structure more stable and less susceptible to the influence of the external environment, thereby improving the durability and service life of the polymer.
As a cross-linking agent, N,N'-m-phenylene dimaleimide has a unique chemical structure, excellent performance, and excellent performance in specific applications, making it irreplaceable among other cross-linking agents. It is widely used and important in the field of fine chemicals, providing strong support for the preparation of high-performance composite materials.
6.Application :
Due to its excellent cross-linking properties, N,N'-m-phenylene dimaleimide has wide applications in many fields. For example, in the aerospace field, it is used to prepare high-performance composite materials to improve the structural strength of aircraft and spacecraft.In the automotive industry, this cross-linking agent-N,N'-m-phenylene dimaleimide is used to make lighter and stronger car parts to improve vehicle safety and fuel efficiency.
In addition, N,N'-m-phenylene dimaleimide also plays an important role in the fields of electronic and electrical, construction and sporting goods.
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N,N'-m-phenylene dimaleimide manufactured by Yangchen Tech has a wide range of applications in the aerospace industry, mainly due to its excellent performance characteristics. The following is a detailed description of its application in the aerospace field:
1. Preparation of high-performance composite materials
In the aerospace field, the requirements for materials are extremely demanding, requiring materials to be lightweight, high strength, high modulus, heat resistant, chemical resistant and have excellent fatigue resistance. N,N'-m-phenylene dimaleimide, as a high-performance cross-linking agent, is widely used in the preparation of advanced composite materials, such as carbon fiber reinforced composites (CFRP) and glass fiber reinforced composites (GFRP).
2. Enhancement of aerospace structural components
Many critical structural components in aerospace vehicles, such as wings, fuselages, engine mounts, etc., need to withstand extreme mechanical stress, high temperatures, and harsh environmental conditions. By using composite materials reinforced with N,N'-m-phenylene dimaleimide cross-linking agent, the mechanical properties and durability of these components can be significantly improved to ensure the safe operation of aerospace vehicles.
3. Lightweight design
The aerospace field has been pursuing lightweight design to reduce energy consumption and improve flight efficiency. The high-performance cross-linking effect of N,N'-m-phenylene dimaleimide can achieve lightweighting of materials while maintaining or improving material properties. This helps reduce the overall weight of the aerospace vehicle, thereby improving fuel efficiency and performance.
4. Chemical resistance and weather resistance
Aerospace vehicles will be exposed to various harsh environments during operation, including high temperature, high humidity, strong radiation and corrosive gases. N,N'-m-phenylene dimaleimide has excellent chemical resistance and weather resistance, which can protect aerospace vehicles from environmental erosion and extend their service life.
5. Advanced manufacturing technology
With the continuous development of aerospace technology, the requirements for manufacturing processes are becoming higher and higher. As a highly efficient cross-linking agent, N,N'-m-phenylene dimaleimide can be combined with a variety of advanced manufacturing processes, such as thermoforming, vacuum bagging, and resin transfer molding (RTM), to create Aerospace components of complex shapes and structures.
N,N'-m-phenylene dimaleimide is widely used in the aerospace field and provides strong support for the preparation of high-performance composite materials. With its outstanding performance characteristics and unique cross-linking mechanism, N,N'-m-phenylene dimaleimide provides a solid guarantee for the safety, performance and durability of aerospace vehicles. With the continuous advancement of technology and the expansion of application fields, N,N'-m-phenylene dimaleimide will have broader application prospects in the aerospace field.
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