| abstract |
The invention discloses a kind of high-strength cable insulating materials and preparation method thereof, wherein preparation method includes：Alumina solution and aluminium powder are mixed, is reacted at 120 130 DEG C, obtains aluminium polychloride mother liquor, aluminium polychloride mother liquor, stabilizer and spin finish aid are mixed, alumina fibre colloidal sol is obtained through heating water bath and after being concentrated in vacuo；Alumina fibre colloidal sol, N-oleoyl N N-methyltaurines sodium and water are mixed, heat treatment for the first time is carried out respectively later and second is heat-treated, modified oxidized aluminum fiber is obtained after filtering；Nitrile rubber, modified oxidized aluminum fiber, Kynoar, cumyl peroxide, Triallyl isocyanurate, paraffin, zinc oxide and barium stearate are mixed, mixing is carried out at 60 80 DEG C, obtains closing refining glue；Solve the problems, such as that existing insulating materials is difficult to ensure superior insulation performance and mechanical strength simultaneously. |