Umhla wokuPoswa:17,Epreli,2023

Iikhemikhali eziyingozi zibhekisa kwiikhemikhali eziyityhefu kakhulu kunye nezinye iikhemikhali eziyityhefu, eziyonakalisayo, ezidubulayo, ezinokutsha, ezixhasa ukutsha neziyingozi kumzimba womntu, izibonelelo kunye nokusingqongileyo.

Ii-agent eziphezulu zokunciphisa amanzi kwiikhonkrithi zibandakanya uchungechunge lwe-naphthalene, uchungechunge lwe-melamine kunye nee-agent zokunciphisa amanzi ezixutywe kuzo, apho uchungechunge lwe-naphthalene luphambili, lubalelwa kwi-67%. Uchungechunge lweNaphthalene kunye nochungechunge lwe-melamine azikho iikhemikhali ezinobungozi. Ke ngoko, i-superplasticizer yekhonkrithi ayiyonxalenye yodidi lweekhemikhali eziyingozi.

I-admixture enokunciphisa kakhulu umthamo wamanzi okuxuba phantsi kwemeko yokuba i-slump yekhonkrithi ngokusisiseko iyafana ibizwa ngokuba yi-agent ephezulu yokunciphisa amanzi.

Izinga lokunciphisa amanzi kwi-ejenti ephezulu yokunciphisa amanzi inokufikelela ngaphezu kwe-20%. Ikakhulu iqulethwe ngochungechunge lwe-naphthalene, uchungechunge lwe-melamine kunye nee-agent zokunciphisa amanzi ezixutywe kuzo, apho uchungechunge lwe-naphthalene luphambili, lubalelwa kwi-67%. Ngokukodwa e-China, uninzi lwe-superplasticizers luchungechunge lwe-naphthalene superplasticizers kunye ne-naphthalene njengeyona nto iphambili ekrwada. I-superplasticizer ye-series ye-Naphthalene inokwahlulwa ibe yimveliso yoxinaniso oluphezulu (umxholo we-Na2SO4 <3%), iimveliso zoxinaniso oluphakathi (umxholo we-Na2SO4 3% ~ 10%) kunye nemveliso yoxinzelelo oluphantsi (umxholo we-Na2SO4> 10%) ngokuhambelana nomxholo we-Na2SO4 kwiimveliso zayo. . Uninzi lwezityalo ze-naphthalene ze-superplasticizer synthesis ziyakwazi ukulawula umxholo we-Na2SO4 ngaphantsi kwe-3%, kwaye amanye amashishini aphambili angakwazi ukuyilawula ngaphantsi kwe-0.4%.