A kind of flame retardant olefin substrate and preparation method thereof
A technology of olefin substrate and styrene, which is applied in the direction of circuit substrate materials, chemical instruments and methods, and other household appliances, and can solve problems such as high loss
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[0027] The preparation method of the flame-retardant olefin substrate of the present invention is as follows:
[0028] (1) Add the double bond hydrocarbons and fillers into the solvent to form a mixed solution, and then coat the mixed solution on the rough surface of the copper foil to remove the solvent to obtain a surface-treated copper foil;
[0029] (2) The prepreg is obtained by dipping the glass cloth in the glue solution and heating; the glue solution includes olefin polymers, solvents, fillers, curing agents, and additive flame retardants;
[0030] (3) The surface-treated copper foil and the prepreg are laminated and then hot-pressed to obtain a flame-retardant olefin substrate.
[0031] The raw materials used in the present invention are all conventional raw materials in the field of copper clad laminates, and the testing methods involved are conventional standard testing methods for copper clad laminates; copper foils are generally rolled copper foil or electrolytic ...
Embodiment 1
[0034] The block copolymer of styrene and butadiene (D1101 SBS) and alumina (particle size of 1 to 10 microns) were added to xylene to form a mixed solution, and then the mixed solution was coated on the rough surface of the copper foil. Air dry, volatilize and remove the solvent to obtain a surface-treated copper foil, and form a copolymer film layer on the rough surface of the copper foil with a thickness of 20 microns. See the actual photos. figure 1 ; The amount of alumina is 10% by weight of the block copolymer of styrene and butadiene (D1101 SBS).
[0035] Dissolve 100 parts by weight of the block copolymer of styrene and butadiene (D1101) in toluene, add 90 parts by weight of silica (525), 3 parts by weight of curing agent DCP, and 10 parts by weight of adding Type flame retardant, stir to obtain glue (solid content is 80%), use 1080 fiber glass cloth to impregnate the above glue to obtain prepreg, then dry to remove solvent to obtain prepreg, glue content is ((weight o...
Embodiment 2
[0039] The block copolymer of styrene and butadiene (D1101 SBS) and alumina (particle size of 1 to 10 microns) were added to xylene to form a mixed solution, and then the mixed solution was coated on the rough surface of the copper foil. Air dry, volatilize and remove the solvent to obtain a surface-treated copper foil, and form a copolymer film layer on the rough surface of the copper foil with a thickness of 25 microns; the amount of alumina is 10% by weight of the block copolymer of styrene and butadiene (D1101 SBS). 10%.
[0040]Dissolve 100 parts by weight of styrene and butadiene block copolymer (D1101) in toluene, add 250 parts by weight of silica (525), 3.8 parts by weight of curing agent DCP, and 10 parts by weight of adding Type flame retardant, stir to obtain glue (solid content is 80%), use 1080 fiber glass cloth to impregnate the above resin solution and then dry to remove the solvent to obtain a prepreg, the glue content is ((weight of prepreg - corresponding to ...
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Abstract
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