Thermosetting resin composition, and prepreg and laminated plate produced by using thermosetting resin composition
A technology of resin composition and prepreg, applied in synthetic resin layered products, applications, household appliances, etc., can solve the problems of insufficient rigidity, low heat resistance, poor adhesion, etc.
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Synthetic example 1
[0067] Put N-(4-hydroxyphenyl)maleimide (190g, 1mol), phenol (94g, 1mol, M94) and oxalic acid (10g) into the flask equipped with thermometer, condenser and stirrer, mix and stir After uniformity, put it in a constant temperature water bath at 70°C; then, under stirring, add formaldehyde solution (150mL, the ratio of phenol / aldehyde to 1 / 0.8) dropwise into the flask for 0.5 hours; after adding formaldehyde, maintain 70°C The temperature and stirring conditions were reacted for 15 hours; then, the reaction product was dissolved and diluted with 400mL acetone, and then the reaction product was precipitated with 40% methanol aqueous solution; the above dissolution-precipitation operation was repeated 3 to 5 times, and it was filtered, separated, Drying yielded pure maleimide phenolic formaldehyde (P-1).
[0068] Take 100g of maleimide phenolic novolac (P-1) prepared by the above method and 500g of methyl isobutyl ketone solvent and put them in a flask to fully mix and dissolve, de...
Synthetic example 2
[0071] With reference to the method of synthetic example 1, the maleimide ester (B-2) of following structure is obtained:
[0072] ; Among them, Ar is , R is phenyl;
[0073] Among them, n is 1~10, and the ratio of x to y is 0.5:1.
Synthetic example 3
[0075] With reference to the method for synthetic example 1, the maleimide ester (B-3) of following structure is obtained:
[0076] ; Among them, Ar is: , R is maleimidophenyl;
[0077] Among them, n is 1~10, and the ratio of x to y is 0.1:1.
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