HEC yeDetergent

HEC Hydroxyethyl cellulose ichena kusvika kucheneruka fibrous kana hupfu hwakasimba. Kwete-chepfu, isina kunaka. Ndiyo nonionic cellulose ether, inonyungudika mumvura inotonhora uye inopisa nekuda kwehydrophilic hydroxyethyl mumorekuru. Mushonga wayo wemvura une pH kukosha kwe6.5 ~ 8.5 uye wakagadzikana pakupisa. HEC ine solubility yakasiyana zvichienderana nehuwandu hwekutsiviwa (DS). Insoluble mune yakawanda organic solvents. Iyo ine zvimiro zvekukora, kumiswa, kunamatira, emulsification, kupararira uye kuchengetedza mwando, nezvimwewo, uye inogona kugadzirira mhinduro neakasiyana viscosity renji. Iyo ine isingawanzo yakanakira munyu kunyungudika kune dielectric, uye mhinduro yayo ine aqueous inotenderwa kuve neyakakura munyu uye inoramba isingachinji.

Hydroxyethyl cellulose HECkugadzira mbishi zvinhu

Main raw materials: City cellulose (cotton staple or low pulp), liquid alkali, ethylene oxide, ethylene diron (40%).

Alkali fiber system ndeye yakasikwa polymer, imwe neimwe fiber ring ine matatu hydroxyl mapoka, inonyanya kushanda hydroxyl kuita kuumba hydroxyethyl cellulose. Nyura chikafu chedonje mbishi kana chidimbu chekudya chakanatswa mu30% yealkali yemvura kwehafu yeawa woidzvanya. Dzvanya kune 1: 2.8 makesi emvura yealkaline, wobva wapwanya. Iyo yakapwanyika alkali cellulose inoiswa mugeti rekuita, yakavharwa, yakavharwa, yakazadzwa nenitrogen, uye inodzokororwa vacuumized uye yakazadzwa nenitrogen kutsiva mhepo mune iyo kesi. Iyo pre-yakatonhodzwa ethylene oxide liquid yakatsikirirwa mukati me reactor bhachi nemvura inotonhorera, uye maitiro akadzorwa paanenge 25C kwe2h kuwana hydroxyethyl fiber cable crude chigadzirwa. Zvigadzirwa zvisina kuchena zvine doro zvekugeza, wedzera acetic acid neutralization kuVLL 46, jean wedzera glyoxal crosslinking kuchembera. Zvadaro geza nemvura, centrifugal dehydration, kuomesa, kugaya, hydroxyethyl cellulose.

1.1 mvura alkali

Pure product is colorless transparent liquid. Relative density 2. 130, melting point 318.4C, boiling point 1390C. Caustic soda pamusika ine mamiriro ekutenderera. Uye mvura mhando mbiri: yakachena yakasimba caustic soda chena, flake, block, granular uye tsvimbo chimiro, cytoplasm: pure liquid caustic soda inonzi liquid alkali, isina ruvara inoonekera mvura. Zvigadzirwa zveindasitiri zvine tsvina, kunyanya sodium chloride uye sodium carbonate, uye dzimwe nguva ishoma yesimbi oxide.

1.2 ethylene oxide

Ethylene oxide is an organic compound, kemikari formula C2H40, ine chepfu carcinogen. Epoxy cane inopfuta uye inoputika, haisi nyore kutakura pamusoro pemadaro marefu, saka kune dunhu rakasimba. Inoshandiswa zvakanyanya mukuwacha, mishonga, kudhinda uye dhayi maindasitiri. 3 oxyethane (E0) ndiyo yakapfava mhete ether, ndeye heterocyclic makomisheni, yakakosha petrochemical zvigadzirwa. Ethylene oxide imvura isina ruvara inoonekera patembiricha yakaderera uye gasi risina ruvara nekunhuhwirira kwemakumbo pakupisa kwekamuri. Iyo mhute yekumanikidza gasi yakakwira uye inogona kusvika 141kPa pa30C. Iyi high vapor pressure inosarudza kupinda kwakasimba kwe epoxy z.alkane kana uchipfungaira. Kunyungudika (C): -112.2. Relative density (mvura -1) : 0.8711

1.3 glyoxal

Yellow ribbed kana kuti zvisina kutsetseka, kushanduka chena pakutonhodza.

Hydroxyethyl celluloseHEC kugadziraprocess

Putdonje guru kana rakanatswa pulp mu30% lye. Bvisa uye tinya. Inobva yapwanywa yoitwa nepre-cooled ethylene oxide kugadzira crude hydroxyethyl cellulose. Zvadaro geza nedoro uye wobva wawedzera acetic acid kuti usuke uye uite neutralize. Wobva wawedzera glyoxal crosslinking kuchembera, kukurumidza kugeza nemvura. Pakupedzisira, mushure me centrifugation kupera mvura mumuviri, kuomeswa nekukuya, kuperaHECchigadzirwa chinowanikwa.

Nzira yekugadzira madota mashomaHEChydroxyethyl cellulose nekuenderera mberi kwekugeza maitiro ndeye tekinoroji yezvigadzirwa. Dambudziko rehunyanzvi rinogadziriswa nderekupa inoenderera yekuwachisa maitiro neakakwira kugadzirwa, kurasikirwa kudiki kwekugezesa solvent uye zvinhu uye mutengo wakaderera kugadzira yakaderera dota.HEChydroxyethyl cellulose. Iyo nzira yekuenderera mberi yekugeza nzira yekubudisa yakaderera madotaHEChydroxyethyl cellulose inoratidzwa mumatanho anotevera: A, crude hydroxyethyl cellulose uye crosslinking agent yakasanganiswa, crosslinking kurapwa kuti uwane slurry A; B. Wedzera washing solvent kune slurry A inowanikwa mudanho A kuti uwane slurry B; C. Wedzera slurry C inowanikwa munhanho B mu rotary pressure centrifuge uye uwane yakaderera ash hydroxyethyl cellulose mushure mekuramba uchigeza. Iyo nzira inogona kuvandudza zvakanyanya kushanda kwekushanda, zvakanyanya kunatsiridza kurasikirwa kwekugeza solvent uye zvinhu, uye zvakanyanya kuderedza madota echigadzirwa, icho chakakodzera kufarirwa uye kushandiswa.