Periston, thermosetting cyanate ester resin modifier and method for preparing the same
A technology of polyvinylpyrrolidone and cyanate resin, which is applied in the field of polyvinylpyrrolidone and thermosetting cyanate resin modification and preparation, and can solve the problems of limited application range, brittle cured product, poor manufacturability, etc. Wide range of properties, high toughness and strength, and excellent comprehensive performance
Inactive Publication Date: 2006-07-19
ZHEJIANG UNIV
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Problems solved by technology
However, cyanate also has the disadvantage that the cured product is brittle, which greatly limits its application range.
In the existing toughening technology of thermosetting resins, copolymerization / blending with thermoplastic resins is one of the effective methods, but its disadvantage is that the processability is poor, and it is usually necessary to add a solvent and remove it, which not only brings pollution , and poor applicability
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0011] By weight, melt and copolymerize 1 part of polyvinylpyrrolidone K30 and 10 parts of bisphenol A cyanate resin at 120 °C for 2 hours; then add 90 parts of bisphenol A type cyanate resin at 100 °C and mix evenly. That is, a modified polyvinylpyrrolidone / thermosetting cyanate resin is obtained.
Embodiment 2
[0013] By weight, melt-copolymerize 20 parts of polyvinylpyrrolidone K30 and 35 parts of dicyclopentadiene cyanate resin at 80°C for 3 hours; , that is, polyvinylpyrrolidone / thermosetting cyanate resin modified body is obtained.
Embodiment 3
[0015] By weight, melt copolymerize 35 parts of polyvinylpyrrolidone K90 and 20 parts of dicyclopentadiene type cyanate resin in an oil bath at 180°C for 1 hour; then add 80 parts of bisphenol A type cyanate resin cyanide at 120°C The acid ester is evenly mixed with it to obtain a polyvinylpyrrolidone / thermosetting cyanate resin modified body.
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The disclosed modified resin is fused and copolymerized by the thermosetting cyanate resin of 100 weight shares and 1-35 polyvinylpyrrolidone, has high ductility and strength, super dielectric and thermostable property fit to be used as adhesive, composite resin matrix and paint. The fractional fusion and copolymerization method has no pollution and wide application.
Description
technical field [0001] The invention relates to a modified body of polyvinylpyrrolidone and thermosetting cyanate resin and a preparation method. Background technique [0002] Thermosetting cyanate resin has excellent heat resistance, dielectric properties, mechanical properties, low water absorption and good processing performance, and its comprehensive performance is superior to high-performance epoxy resin and bismaleimide resin. A resin matrix with great development potential. Cyanate esters can be used to manufacture structural materials, wave-transmitting materials and high-frequency circuit boards, etc. However, cyanate also has the disadvantage that the cured product is brittle, which greatly limits its application range. In the existing toughening technology of thermosetting resins, copolymerization / blending with thermoplastic resins is one of the effective methods, but its disadvantage is that the processability is poor, and it is usually necessary to add a solve...
Claims
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Login to View More IPC IPC(8): C08G81/02C08G18/00C08F126/10C09D187/00C09J187/00
Inventor 顾媛娟梁国正王结良赵雯张增平王金合
Owner ZHEJIANG UNIV