Hydroxyethyl Methyl Cellulose (HEMC)

Hydroxyethyl methyl cellulose (HEMC) i polymer inonyungudika nemvura inotorwa kubva muselulosi. Iyo isiri-ionic, isiri-chepfu, uye isingabatike musanganiswa iyo inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana uye evatengi. HEMC inokosheswa nekugona kwayo kuita seyakakora, binder, uye rheology modifier mune zvakawanda zvigadzirwa.

HEMC inogadzirwa nemakemikari ekugadzirisa masikirwo cellulose fibers. Muchiitiko ichi, iyo cellulose fiber inobatwa ne sodium hydroxide kuti igadzire alkali cellulose. Ethylene oxide inozowedzerwa kumusanganiswa, iyo inopindirana ne cellulose kugadzira hydroxyethyl cellulose. Pakupedzisira, methyl chloride inowedzerwa kumusanganiswa kugadzira HEMC.

HEMC inoshandiswa mumhando dzakasiyana siyana dzekushandisa, kusanganisira kuvaka, chikafu, kutarisirwa kwevanhu, nemishonga. Imwe yemashandisirwo ekutanga eHEMC mukuvaka, uko inoshandiswa muzvigadzirwa zvakasiyana senge yakaoma musanganiswa dhaka, putties, mataira anonamira, uye gypsum zvigadzirwa.

Mune yakaoma musanganiswa madhaka, HEMC inoshandiswa seyakakora, binder, uye mumiriri wekuchengetedza mvura. Inobatsira kuvandudza kushanda kwedhaka uye inobvumira kutonga zviri nani kwehuwandu hwemvura. Izvi zvakakosha nekuti mvura yedhaka inokanganisa kuenderana kwayo, nguva yekuisa, uye simba rekupedzisira.

Mune putties, HEMC inonyanya kushandiswa seyakakora uye binder. Kuwedzerwa kweHEMC kune musanganiswa kunobatsira kuvandudza kushanda kweputty uye inobvumira kutonga zviri nani kwehuwandu hwemvura. HEMC inobatsirawo kudzivirira kuparadzaniswa kwezvikamu zvakasiyana-siyana mukugadzirwa kweputty, uye inovandudza kusungirirwa kweputty kune substrates.

Mumatairi anonamira, HEMC inonyanya kushandiswa semumiriri wekuchengetedza mvura. Kuwedzerwa kweHEMC kumusanganiswa kunobatsira kuvandudza kushanda kwekunamatira uye kunobvumira kutonga zviri nani kwehuwandu hwemvura. HEMC inobatsirawo kudzivirira kuparadzaniswa kwezvikamu zvakasiyana-siyana mukugadzirwa kwekunamatira, uye inovandudza kusungirirwa kwekunamatira kune substrates.

Mune zvigadzirwa zvegypsum, HEMC inoshandiswa seyakakora, bhainda, uye mumiriri wekuchengetedza mvura. Inobatsira kuvandudza kushanda kwechigadzirwa chegypsum uye inobvumira kutonga zviri nani kwehuwandu hwemvura. Izvi zvakakosha nekuti mvura yemukati yechigadzirwa chegypsum inokanganisa nguva yayo yekuisa uye simba rekupedzisira.

Muzvigadzirwa zvechikafu, HEMC inowanzoshandiswa seyakakora, stabilizer, uye emulsifier. Inoshandiswa mumhando dzakawanda dzakasiyana dzezvigadzirwa zvekudya, kusanganisira sosi, madhirezi, uye zvigadzirwa zvemukaka. HEMC inokosheswa nekugona kwayo kuvandudza magadzirirwo uye kugadzikana kwezvigadzirwa izvi.

Muzvigadzirwa zvekuchengetedza munhu, HEMC inoshandiswa seyakakora, stabilizer, uye emulsifier. Inoshandiswa mumhando dzakawanda dzakasiyana dzezvigadzirwa zvekuchengeta munhu, zvinosanganisira shampoos, conditioners, uye lotions. HEMC inokosheswa nekugona kwayo kuvandudza magadzirirwo uye kugadzikana kwezvigadzirwa izvi.

Mumishonga yemishonga, HEMC inoshandiswa sebhainda uye disintegrant. Inoshandiswa mukugadzirwa kwehwendefa kuvandudza simba remagetsi epiritsi uye kubatsira mukuparara kwehwendefa uye kuparara mumuviri.