Method for preparing wet friction material of nano silicon carbide modified carbon cloth
A technology of wet friction material and nano-silicon carbide, which is applied in the field of friction materials, can solve serious problems such as wear of dual materials, and reduce the service life of friction pairs, so as to achieve the effects of increasing service life, improving tribological performance, and reducing wear
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Embodiment 1
[0021] 1) Dissolve 25g of cashew nut shell oil modified phenolic resin and 4g of nano-SiC powder in 160mL of absolute ethanol, then add γ-methacryloxypropyltrimethoxysilane (silane coupling agent KH-570 ), magnetically stirred for 3 hours to obtain a uniformly dispersed suspension A; wherein, every 100 g of suspension A contained 0.1 g of γ-methacryloxypropyltrimethoxysilane;
[0022] 2) Cut the plain cloth into a square shape of 12cm×12cm, soak it in absolute ethanol for 24 hours, take it out, and then dry it under natural conditions to obtain sample B;
[0023] 3) Soak sample B in suspension A for 1 hour, quickly take it out and dry it under natural conditions to get sample C;
[0024] 4) The sample C is hot-pressed on a vulcanizer, and the hot-press temperature of the vulcanizer is controlled at 160°C, the hot-press time is 5 minutes, and the hot-press pressure is 5MPa, and a nano-silicon carbide modified carbon cloth with stable friction and wear properties is obtained. w...
Embodiment 2
[0026] 1) Dissolve 30g of cashew nut shell oil modified phenolic resin and 10g of nano-SiC powder in 160mL of absolute ethanol, then add γ-methacryloxypropyltrimethoxysilane (silane coupling agent KH-570 ), magnetically stirred for 4 hours to obtain a uniformly dispersed suspension A; wherein, every 100 g of suspension A contained 0.2 g of γ-methacryloxypropyltrimethoxysilane;
[0027] 2) Cut the satin cloth into a square shape of 12cm×12cm, soak it in absolute ethanol for 24 hours, take it out, and then dry it under natural conditions to obtain sample B;
[0028] 3) Soak sample B in suspension A for 1 hour, quickly take it out and dry it under natural conditions to get sample C;
[0029] 4) The sample C was hot-pressed on a vulcanizer, and the hot-press temperature of the vulcanizer was controlled at 160°C, the hot-press time was 7 minutes, and the hot-press pressure was 6MPa, and a nano-silicon carbide modified carbon cloth with stable friction and wear properties was obtain...
Embodiment 3
[0031] 1) Dissolve 35g of nitrile rubber modified phenolic resin and 16g of nano-SiC powder in 160mL of absolute ethanol, then add γ-methacryloxypropyltrimethoxysilane (silane coupling agent KH-570 ), magnetically stirred for 4 hours to obtain a uniformly dispersed suspension A; wherein, every 100 g of suspension A contained 0.2 g of γ-methacryloxypropyltrimethoxysilane;
[0032] 2) Cut the plain cloth into a square shape of 12cm×12cm, soak it in absolute ethanol for 24 hours, take it out, and then dry it under natural conditions to obtain sample B;
[0033] 3) Soak sample B in suspension A for 1.5 hours, quickly take it out and dry it under natural conditions to get sample C;
[0034] 4) The sample C is hot-pressed on a vulcanizer, and the hot-press temperature of the vulcanizer is controlled at 160°C, the hot-press time is 8 minutes, and the hot-press pressure is 7MPa, and a nano-silicon carbide modified carbon cloth with stable friction and wear properties is obtained. wet...
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