Waa maxay faraqa u dhexeeya HEC iyo MHEC?

HEC iyo MHEC waa laba nooc oo ah walxaha polymers-ku-saleysan ee loo isticmaalo codsiyo kala duwan, oo ay ku jiraan dhumucyada, xasiliyeyaasha, iyo emulsifiers ee alaabta cuntada, iyo sidoo kale daawooyinka dawooyinka iyo alaabta la isku qurxiyo.Farqiga ugu weyn ee u dhexeeya labada waa HEC waa hydroxyethyl cellulose, halka MHEC ay tahay methyl hydroxyethyl cellulose.

HEC waa polymer biyo-milmi leh oo ka soo jeeda cellulose, polysaccharide si dabiici ah u soo baxa oo laga helo dhirta.Waxay ka kooban tahay silsilad toosan oo unugyo gulukoos ah oo leh koox hydroxyethyl oo ku dheggan dhammaadka molecule kasta.HEC cellulose waxaa loo isticmaalaa sidii dhumuc, xasiliye, iyo emulsifier ee alaabta cuntada, iyo sidoo kale daawooyinka iyo alaabta la isku qurxiyo.Waxa kale oo loo isticmaalaa samaynta waraaqaha iyo daabacaadda, iyo sidoo kale samaynta xabagta iyo dahaarka.

MHEC waa nooc la beddelay oo HEC cellulose ah kaas oo kooxda hydroxyethyl lagu beddelay koox methyl ah.Wax ka beddelkaani wuxuu kordhiyaa hydrophobicity ee polymer-ka, taasoo ka dhigaysa mid aad u adkeysi badan walxaha biyaha ku milma.MHEC waxaa loo isticmaalaa codsiyo kala duwan, oo ay ku jiraan dhumuc ahaan, xasiliye, iyo emulsifier ee alaabta cuntada, iyo sidoo kale daawooyinka iyo alaabta la isku qurxiyo.Waxa kale oo loo isticmaalaa samaynta waraaqaha iyo daabacaadda, iyo sidoo kale samaynta xabagta iyo dahaarka.

Marka la soo koobo, farqiga ugu weyn ee u dhexeeya HEC cellulose iyo MHEC waa in HEC ay tahay hydroxyethyl cellulose, halka MHEC ay tahay methyl hydroxyethyl cellulose.Labada qalabba waxaa loo isticmaalaa codsiyo kala duwan, oo ay ku jiraan sida dhumucyada, xasiliyeyaasha, iyo emulsifiers ee alaabta cuntada, iyo sidoo kale daawooyinka iyo alaabta qurxinta.