Liquid phenolic-type cyanate resin suitable for RTM (resin transfer molding) process

A technology of phenolic cyanate and phenolic resin, which is applied in the field of liquid cyanate resin and can solve problems such as short gel time
CN102887983AInactive Publication Date: 2013-01-23BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2013-01-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a liquid phenolic-type cyanate resin suitable for RTM (resin transfer molding) and a preparation method of the liquid phenolic-type cryanate resin. Thermoplastic phenolic resin with low molecular weight is taken as a matrix, and reacts with cyanogen bromide to prepare the liquid cyanate resin under base catalysis. A material with good heat resistance is obtained from the phenolic-type cyanate resin disclosed by the invention by thermocuring and catalytic curing, and the phenolic-type cyanate resin is suitable for being used as a heat-resistant composite material matrix resin.
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Description

technical field

[0001] The invention relates to a thermosetting phenolic cyanate resin suitable for molding at room temperature and a preparation method thereof. Specifically, a low-molecular-weight phenolic resin is prepared by acid-catalyzed polymerization, and then a liquid cyanate resin suitable for RTM molding is prepared under alkali catalysis resin. technical background

[0002] Cyanate ester resins have important application prospects in the fields of aerospace and electronic materials, including flame retardant materials, rocket shell materials, flame retardant fibers, and carbon-carbon composite material matrices. Phenolic cyanate resin is one of the best high-temperature resin materials with the best ablation resistance. It has good heat resistance, mechanical properties, dielectric properties and good process performance [Li Wenfeng, Chen Chun, Wang Guojian. Phenolic cyanic acid Research and Application of Ester Resin. Materials Review. 2006, 6:46]. However, th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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