The invention discloses a low-cost
flame-retardant photovoltaic cable with good
thermal stability. The cable comprises a cable core and a sheath layer
coating the outer side of the cable core, whereinthe sheath layer is prepared from the raw materials in parts by weight: 110-130 parts of substrate, 0.1-0.18 part of
maleic anhydride, 0.4-1 part of
tin dibutyl dilaurate, 1.5-2.5 parts of cross-
linker, 1-2 parts of glycerine, 0.2-0.8 part of 4-methyl-2-pentanol, 1-2 parts of
pentaerythritol, 30-50 parts of modified bamboo
powder, 28-40 parts of micro-capsulated red
phosphorus, 15-18 parts of
magnesium hydroxide, 2-4 parts of
zinc borate, 3-8 parts of talcum
powder and 3-6 parts of maifanite
powder. The modified bamboo powder is prepared through the following processes: subjecting
sodium methylate,
polyethylene glycol 200 and
methyl palmitate to heating and vacuum stirring, adding bamboo powder and water into the mixture, carrying out stirring, carrying out filtering, carrying out washing, adding
titanium sulfate,
urea and water, carrying out uniform mixing, feeding the mixture into a hydrothermal reactor, carrying out sealing, carrying out heating, carrying out a
hydrothermal reaction, carrying out cooling, carrying out filtering, carrying out washing, and carrying out
drying.