???? ?? ???? ????? ??????

???? ???? ?? ????? GEL ????? ????? GEL ???????? ??? ???????? ?? ??? ???-??????? ???? ?????? ?? ??? ??? ??? ????? GEL ???????? ?? ????? ???? ??? ??? ???-??????? ???? ?????? ??? ???? ???? ??, ?? ??????? ???????? ??? ??????? ?? ???? ?????? ???? ??? GEL (SiO2) ????????????? ?? ??? ???? ???? ?????? ??? ??????? ???? ???????? ?? ????? ????? ??, ????? ??? 40 ??? 60 ℃ ??? ???? ???? ??????? ???? ????? ?? ???? ??? ?????? ?? ???????? ?????????? ??? ????? ??????? ?????? ?????? ????? ?? ?????? ??? ??? ???? ??, ???? ?? ???? ??? ???-???? ?? ??? ??? ??? ???? ??? ??? ??? '??, ????? ??????? ?? ??? ????-?????? ??????? 95% ??? ??? ??, ?????? ???????? ??? ???? ??? ??? ????? ??????? ??? ???? ?? ???? ?????? ????, ?? ??????? 25 ℃ '?? ???? ??????? ??????????? ???? 20 ????? ??? ?? ???? ???? ?? ??? ?????? ??, ?? ????? ?? ??????? ?????????? ??? ???? ??? ??? ?????????? ??? ???? ????? ???? GEL ????????, ??? ???? SiO2 ??????? ????? ????????, PF/PVC-SiO2 ??????, ??? ??? ABS ?????? ????? ???, ?????? ??? '?? ????? ?? ?????? ???????? ??? ???? ???????? ???? ?????? ???? ???? ?????? ?????? ??? ?????? ???? ????? ??? ??? ????? ???? ????? ??????? ??? ??????????? ?? ??? ????????? ??, ???? ??? ????? GEL ????? ??? ?????????? ?? ??? ???? ???? ????? ??, ?? ?? ?????????? ??????? ???? ??????? ???? ??? ??? ???????? ?? ??????? ???? ???