EHEC uye MEHEC

EHEC (ethyl hydroxyethyl cellulose) uye MEHEC (methyl ethyl hydroxyethyl cellulose) mhando mbiri dzakakosha dze cellulose ethers dzinowanzoshandiswa mumaindasitiri akasiyana-siyana, kusanganisira pendi uye coating indasitiri. Ngationgororei zvakadzama mune imwe neimwe:

1. EHEC (Ethyl Hydroxyethyl Cellulose):
   • Chemical Structure: EHEC inotorwa kubva ku cellulose nekuunza ese ethyl uye hydroxyethyl mapoka pane cellulose musana.
   • Properties uye Mabasa:
     • EHEC inonyungudika mumvura uye inoumba pachena, viscous mhinduro.
     • Inoshanda seyakakora uye rheology modifier mumvura-yakavakirwa pendi uye machira, inodzora viscosity uye inovandudza mashandisirwo ekushandisa.
     • EHEC inopa pseudoplastic kana shear-kuonda maitiro ekupendera maumbirwo, zvichireva kuti viscosity inodzikira nekuwedzera kweshear rate, kuita kuti kuve nyore kushandisa uye kutsetseka kwebrashi.
   • Applications:
     • EHEC inoshandiswa zvakanyanya mukati nekunze pendi, maprimers, uye machira kuti uwane inodiwa kuenderana, kuyerera, uye kuyera zvivakwa.
     • Iyo inonyanya kushanda mukugadzira uko yakakwira viscosity pane yakaderera shear mitengo inodiwa kuti sag kuramba uye yakagadziridzwa firimu kuvaka.
2. MEHEC (Methyl Ethyl Hydroxyethyl Cellulose):
   • Mushonga Wemakemikari: MEHEC is modified cellulose ether ine methyl, ethyl, uye hydroxyethyl substituents pamusana we cellulose.
   • Properties uye Mabasa:
     • MEHEC inoratidza solubility yakafanana uye rheological properties kuEHEC asi paine mimwe misiyano mukuita.
     • Inopa masimba ekuchengetedza mvura yakagadziridzwa kana ichienzaniswa neEHEC, ichiita kuti ive yakanyatsokodzera maumbirwo apo yakawedzerwa nguva yakazaruka kana kuvandudzwa kwemavara kudiwa.
     • MEHEC inopa yakawedzera kukora kushanda uye kugadzikana pamusoro pehupamhi hwepH uye tembiricha mamiriro.
   • Applications:
     • MEHEC inowana kushandiswa mumvura-yakavakirwa pendi, machira, uye zvinhu zvekuvaka uko kwakagadziridzwa kuchengetedza kwemvura, kukora, uye rheological control inodiwa.
     • Inowanzo shandiswa mukugadzira pendi yekushongedza, machira akashongedzwa, uye hunyanzvi hwekupedzisa uko yakawedzera nguva yekushanda uye nekunatsiridza kuyerera zvivakwa zvakakosha.

Ese ari maviri EHEC neMEHEC akasiyana-siyana cellulose ether anopa maformulator kuchinjika mukuwana inodiwa maitiro ekuita mupendi-yakavakirwa mvura uye mapendi. Kupindirana kwavo nezvimwe zvinowedzera, nyore kubatanidzwa mukugadzirisa, uye kukwanisa kusimudzira zvinhu zvakakosha zvakadai sekutonga viscosity, kuchengetwa kwemvura, uye zvigadziro zvekushandisa zvinovaita zvikamu zvakakosha mukugadzirwa kwemhando yepamusoro yekushongedza.