Cyanate ester based thermosetting resin and application thereof
A resin composition and thermosetting technology, applied in the application field of the composition, can solve problems such as limiting the application of materials, and achieve the effect of excellent dielectric properties
Inactive Publication Date: 2012-10-03
EAST CHINA UNIV OF SCI & TECH
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, such compositions limit the application of materials in occasions with strict requirements on dielectric properties and moisture absorption properties, including electrical applications, wave-transmitting materials, etc., and it is still necessary to develop cyanate resins with good dielectric properties and hygrothermal properties curable composition
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1～3
[0014] Examples 1-3 respectively prepared cyanate-based thermosetting resin compositions I-III, and the viscosities and weight percentages of components A, B, and C are shown in Table 1 below.
[0015]
[0016] Note: The above viscosity is measured at 70°C.
Embodiment 4～6
[0018] Examples 4-6 are the viscosity parameters of the compositions at 70° C., and the curing process and various properties of the cured materials are shown in Table 2. According to this curing process, the curing degree of the obtained materials is above 94%, and has excellent comprehensive properties under the premise of excellent dielectric properties.
[0019]
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Abstract
The invention relates to a solidified composition based on bi- or polyfunctional group aromatic cyanate ester and application thereof. After solidification, a thermosetting plastic is provided by the composition of the aromatic cyanate ester provided by the invention, and comprises cyanate ester having a main chain including a biphenol A structure, an alkyl dimethylbenzene structure or a tetramethyl biphenol A structure and a prepolymer thereof. The thermosetting plastic has the advantages of excellent damp and hot resistance, low dielectric constant and dielectric loss, higher glass-transition temperature and mechanical property. The cyanate ester based thermosetting resin is particularly suitable for producing a printed circuit board, an electric insulator, a coating or a low dielectric wave-transparent material in aviation manufacturing industry.
Description
technical field [0001] The invention describes a low-dielectric cyanate resin composition and relates to the application of the composition. The cyanate ester composition of the present invention is particularly useful for printed circuit boards, electrical insulating parts, antenna coatings, aerospace materials, and the like. Background technique [0002] Cyanate resins are prepared by reacting phenolic compounds with cyanogen halides. Under the action of heat or a catalyst, the aryloxytriazine ring is generated through the ring trimerization of the cyanate group in the cyanate structure, which acts as a crosslinking site in the thermosetting matrix (US patents 4330658, 4330669, 4780575, 4528366 and 4740584). Cyanate resins have excellent performance and are usually combined with other types of resin systems. The most common combination system is the cyanate ester-epoxy resin blend system (Japanese patent 05339342, United Signal Company invention patent CN 1166849A, Sumi...
Claims
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IPC IPC(8): C08L79/04C08G73/06
Inventor 王家樑王帆朱亚平齐会民
Owner EAST CHINA UNIV OF SCI & TECH
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