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Chinese Thermosetting Benzoxazine Resin Successfully Applied to China’s Large Aircraft C919 Project Hay:C11CDKY

The research and development team of CDKY Polymer Technology Corporation is composed of renowned scientists in the high-performance thermosetting resin industry in China.

The company is committed to the R&D and production of high-performance benzoxazine resin. The company takes "benzoxazine resin" as its core product and has developed over a hundred new structural benzoxazine resins, finalizing thousands of application samples of benzoxazine new materials.

In terms of the characteristics and functions of the material itself, benzoxazine is a type of nitrogen-containing heterocyclic polymer synthesized from phenolic, aldehyde, and amine compounds. It can be uniformly polymerized into polybenzoxazine resin under heating conditions, and can also copolymerize with traditional thermosetting resins such as epoxy resin and phenolic resin to form copolymers.

Therefore, as a new type of thermosetting resin, the relationship between benzoxazine and traditional thermosetting resins is not a "one out of two" substitution, but a "fusion" of 1+1>2.

At present, CDKY's benzoxazine resin product system can be divided into multiple series based on material characteristics, including halogen-free flame retardancy, high-temperature resistance, high residual carbon, high strength, high modulus, solvent-free low viscosity, etc.

The application fields include aerospace, rail transit, new energy, electronics and electrical engineering, special military industry, abrasive tools, anti-corrosion coatings, etc. The most important applications are in high-end integrated circuits and high-end composite materials.

Corresponding to different application fields, benzoxazine resin has corresponding performance advantages in different aspects compared to traditional materials, for examples:

The resin system of electronic copper clad panels has gone through the phenolic resin era, epoxy resin era, and today, copper clad panels are continuously developing towards high-performance directions such as halogen-free, high-frequency, high-speed, and low expansion and contraction. Incorporating benzoxazine resin products into traditional material systems will help improve overall performance.

The traditional material used in the field of abrasive tools and abrasives is phenolic resin. However, phenolic resin materials release small molecules during the molding process, and high porosity after molding can lead to low yield. In addition, phenolic resin has high brittleness, which can cause quick polishing loss of the finished product. However, the curing process of benzoxazine resin has no small molecule release, low porosity, high yield, and high strength and high modulus, which can effectively solve these two major pain points.

In the aerospace field, CDKY's benzoxazine resin has been applied in multiple components of the Chinese large aircraft C919. The majority of the performance of aircraft composite components is actually determined by carbon fiber materials. However, if the strength of the matching resin is insufficient, it will "reduce" the overall performance. Therefore, it is necessary to use new resins with higher strength and higher modulus to match. The strength of benzoxazine resin The modulus has obvious advantages in resin materials.

Performance advantages of benzoxazine resin products

Traditional materials such as epoxy resin and phenolic resin have a history of over a hundred years, with unified standards and mature downstream industrial support. Compared to them, benzoxazine resin products have obvious performance advantages. However, the challenge at this stage lies in downstream cultivation and promotion. The downstream process, equipment matching, and industrial workers of traditional materials have become very mature.

In order to better achieve customization, CDKY has established a big data sample system to precipitate validated downstream customers and their solutions, and associate them with internal formulas.

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