Ngaba iSialant yeSilicone engathathi hlangothi ineFormaldehyde?

I-silicone sealant engathathi hlangothi iqulethe i-formaldehyde, kodwa umxholo uphantsi, ngokubanzi awudluli kwi-0.5g / kg. Apha ngezantsi kukho inkcazo eneenkcukacha ye-formaldehyde kwi-silicone sealant engathathi hlangothi:

Umxholo we-Formaldehyde: Nangona i-silicone sealant engathathi hlangothi iqulethe i-formaldehyde, umxholo uphantsi kwaye ngokubanzi awubeki ingozi enkulu kwimpilo yabantu. Ngaphantsi kokusetyenziswa okuqhelekileyo, ukukhutshwa kwe-formaldehyde kuphakathi koluhlu olukhuselekileyo.
Izithako eziphambili: Izithako eziphambili ze-silicone sealant engathathi hlangothi zibandakanya i-organic hydroxy silicones, i-organic methyl silicones, kunye ne-methyl silanes, edibanisa kunye nokusebenza kwe-sealant kunye neempawu. I-formaldehyde licandelo lomkhondo kuphela.
Izicelo: Ngenxa yokunganyangeki kokuguga okugqwesileyo, ukuxhathisa kwe-UV, kunye nokumelana ne-ozone, kunye neempawu zabo ezintle zokudibanisa kunye nokuhambelana, i-silicone sealants engathathi hlangothi isetyenziswa ngokubanzi kwizicelo ezifana nokwakhiwa kocango kunye nofakelo lwefestile, ukufakwa kodonga lwamakhethini eglasi, kunye nesakhiwo sesinyithi se-caulking. Kwezi zicelo, ukukhutshwa kwe-formaldehyde akubangeli mpembelelo ibalulekileyo kokusingqongileyo okanye kwimpilo yabantu. Ukudibanisa, nangona i-silicone sealant engathathi hlangothi iqukethe i-formaldehyde, umxholo wayo uphantsi, kwaye inani le-formaldehyde elikhutshwe ngexesha lokusetyenziswa lingaphakathi kwendawo ekhuselekileyo, ngoko inokusetyenziswa ngokuqhelekileyo.