Preparation method of zirconium boride modified paper base friction material
A paper-based friction material, zirconium boride technology, applied in the direction of synthetic cellulose/non-cellulose material pulp/paper, paper, papermaking, etc., can solve the problem of low strength and toughness, high melting point of materials, introduction of zirconium boride, etc. problem, to achieve good oxidation resistance, improve friction performance, and good corrosion resistance
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Embodiment 1
[0020] Step 1: Take 1.2g cashew nut shell modified phenolic resin, dissolve it in 150ml of absolute ethanol to obtain a phenolic resin solution, wait for the phenolic resin to fully dissolve and let it stand for 20-30h, seal it and save it to obtain A solution;
[0021] Step 2: Disperse 0.5g of multi-walled carbon nanotubes with a diameter of 30-50nm in 200ml of an aqueous solution of sodium dodecylsulfonate (SDS) with a mass concentration of 0.25%, stir magnetically for 5-7 hours, and disperse evenly to obtain carbon nanotubes tube suspension B;
[0022] Step 3: Dissolve zirconium boride in deionized water to prepare 50ml of zirconium boride suspension with a concentration of 0.12mol / L, stir magnetically for 10-30min, and then add 1ml of polyammonium methacrylate (PMAA) to the suspension ), magnetically stirred for 1 to 4 hours to obtain zirconium boride solution C;
[0023] Step 4: Take 10g of chopped carbon fiber with a diameter of 8-15 μm, 8g of bamboo fiber with a beatin...
Embodiment 2
[0027] Step 1: Take 1.3g cashew nut shell modified phenolic resin, dissolve it in 145ml of absolute ethanol to obtain a phenolic resin solution, wait for the phenolic resin to be fully dissolved and let it stand for 20h-30h, seal it and save it to obtain A solution;
[0028] Step 2: Disperse 1g of multi-walled carbon nanotubes with a diameter of 30-50nm in 250ml of sodium dodecylsulfonate (SDS) aqueous solution with a mass concentration of 0.2%, and magnetically stir for 5-7 hours to configure uniform dispersion to obtain carbon nanotubes Suspension B;
[0029] Step 3: Dissolve zirconium boride in deionized water to prepare 150ml of zirconium boride suspension with a concentration of 0.13mol / L, stir magnetically for 10-30min, and then add 3.5ml of polyammonium methacrylate ( PMAA), magnetically stirred for 1 to 4 hours to obtain zirconium boride solution C;
[0030] Step 4: Take 8g of chopped carbon fiber with a diameter of 8-15 μm, 7g of bamboo fiber with a beating degree of...
Embodiment 3
[0034]Step 1: Take 1.4g cashew nut shell modified phenolic resin, dissolve it in 140ml of absolute ethanol to obtain a phenolic resin solution, wait for the phenolic resin to be fully dissolved and let it stand for 20h-30h, seal it and store it to obtain A solution;
[0035] Step 2: Disperse 1.5g of multi-walled carbon nanotubes with a diameter of 30-50nm in 300ml of an aqueous solution of sodium dodecylsulfonate (SDS) with a mass concentration of 0.15%, stir magnetically for 5-7 hours and configure to uniformly disperse carbon nanotubes tube suspension B;
[0036] Step 3: Dissolve zirconium boride in deionized water to prepare 200ml of zirconium boride suspension with a concentration of 0.14mol / L, stir magnetically for 10-30min, and then add 4.5ml of polyammonium methacrylate ( PMAA), magnetically stirred for 1 to 4 hours to obtain zirconium boride solution C;
[0037] Step 4: Take 9g of chopped carbon fiber with a diameter of 8-15 μm, 6g of bamboo fiber with a beating degre...
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