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

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