Soo-saarka loogu talagalay Hydroxyethyl Cellulose

Hydroxyethyl cellulose (HEC) waxaa sida caadiga ah lagu soo saaraa falcelin kiimiko ah oo la xakameeyey oo u dhexeeya cellulose iyo ethylene oxide, oo ay ku xigto hydroxyethylation. Nidaamku wuxuu ku lug leeyahay dhowr tillaabo, oo ay ku jiraan:

1. Diyaarinta Cellulose: Habka wax soo saarku wuxuu ku bilaabmayaa go'doominta cellulose ee ilaha la cusboonaysiin karo sida saxarka alwaax, suufka suufka, ama fiilooyinka dhirta kale. Cellulose sida caadiga ah waa la nadiifiyaa oo laga baaraandegay si looga saaro wasakhda iyo lignin, taasoo keentay walxo cellulose ah oo aad loo sifeeyay.
2. Ethoxylation: Tallaabadan, maadada cellulose ee la nadiifiyey ayaa lagu falceliyaa ethylene oxide iyada oo ay joogaan kiciyayaasha alkaline ee xaaladaha la xakameeyey. Unugyada Ethylene oxide waxay ku daraan kooxaha hydroxyl (-OH) ee silsiladda polymer cellulose, taasoo keentay in kooxaha ethoxy (-OCH2CH2-) ay galaan laf-dhabarka cellulose.
3. Hydroxyethylation: Ka dib ethoxylation-ka, cellulose-ka ethoxylated waxaa lagu sii falceliyaa ethylene oxide iyo alkali iyada oo la raacayo shuruudaha la xakameeyey si loogu soo bandhigo kooxaha hydroxyethyl (-OCH2CH2OH) ee silsiladda cellulose. Falcelintan hydroxyethylation waxay wax ka beddeshaa sifooyinka cellulose, oo siisa milanka biyaha iyo hydrophilicity polymer-ka.
4. Nadiifinta iyo Qalajinta: cellulose-ka hydroxyethylated ayaa markaa la nadiifiyaa si looga saaro fal-celiyeyaasha haraaga ah, kicinta, iyo alaabada ka soo baxa isku-darka falcelinta. HEC-da la safeeyey ayaa sida caadiga ah la dhaqaa, la sifeeyaa, oo la qalajiyaa si loo helo budo fiican ama granules oo ku habboon codsiyada kala duwan.
5. Qiimaynta iyo Baakaynta: Ugu dambayntii, badeecada HEC waxa lagu qiimeeyay iyada oo lagu salaynayo sifooyinkiisa sida viscosity, cabbirka walxaha, iyo nadiifnimada. Ka dib waxaa lagu daraa bacaha, durbaannada, ama weelasha kale ee qaybinta iyo kaydinta.

Habka wax-soo-saarka wax yar wuu kala duwanaan karaa iyadoo ku xidhan heerka gaarka ah iyo shuruudaha tayada ee alaabta HEC, iyo sidoo kale hab-dhaqanka wax-soo-saarka ee shirkado gaar ah. Tallaabooyinka xakamaynta tayada ayaa sida caadiga ah lagu shaqeeyaa inta lagu guda jiro habka wax soo saarka si loo hubiyo joogteynta, nadiifnimada, iyo waxqabadka ugu dambeeya ee HEC.

HEC waxaa loo isticmaalaa warshado kala duwan, oo ay ku jiraan dhismaha, dawooyinka, daryeelka shakhsi ahaaneed, iyo cuntada, sababtoo ah dhumucdeeda, xasilinta, iyo guryaha-haysashada biyaha.