Cov teeb meem kev nyab xeeb ntawm Polyether Polyols

1. Sib nrug los ntawm kev ntxiv rau cov khoom noj thiab lwm yam tshuaj, nws yuav luag tsis muaj tshuaj lom thiab tsis muaj qhov khaus ntawm daim tawv nqaij. Txawm hais tias nws nkag mus rau lub qhov muag ncaj qha, nws tseem yog cov tshuaj ntxuav tes kom khaus khaus thiab tsis muaj kev puas tsuaj rau lub cornea.
2. Ceev faj rau kev siv
(1) Vim nws hygroscopicity, tsis txhob tuaj rau hauv kev sib cuag nrog huab cua.
(2) Tsis txhob qhib nplaim taws thiab cua sov ntev hauv huab cua, tshwj xeeb tshaj yog cov ntaub ntawv rwb thaiv tsev thiab khaub ncaws uas nkag mus rau polyether polyols, uas feem ntau ignite ib txwm. Kev mloog yuav tsum tau them.
(3) Thaum ua raws li daim tawv nqaij, yaug nrog dej kom ntau, thiab thaum nkag mus rau qhov muag, yaug nrog dej tsawg kawg 15 feeb.
(4) Thaum dhau lawm, tshem tawm cov khoom permeable xws li sawdust, daj xuab zeb, ntaub, thiab yaug tawm nrog dej ntau.
3. Tshem tawm cov hluav taws kub nrog ua npuas ncauj, hmoov, carbon dioxide, tshuaj tsuag dej, dej ntau, thiab lwm yam