Focus on Cellulose ethers

Chii chinonzi hypromellose chinogadzirwa kubva?

Chii chinonzi hypromellose chinogadzirwa kubva?

Hypromellose, inozivikanwawo se hydroxypropyl methylcellulose (HPMC), ndeye synthetic polymer inotorwa kubva ku cellulose. Inogadzirwa nekemikari kugadzirisa selulosi chaiyo inowanikwa kubva muhuni pulp kana machira ekotoni kuburikidza nemaitiro anozivikanwa se etherification. Mukuita uku, iyo cellulose fiber inobatwa nemusanganiswa wepropylene oxide uye methyl chloride, izvo zvinotungamira mukuwedzerwa kwehydroxypropyl uye methyl mapoka kune cellulose mamorekuru.

Chigadzirwa chinobuda ipolymer inonyungudika nemvura inoshandiswa mumhando dzakasiyana dzekushandisa, kusanganisira mishonga, zvizorwa, zvigadzirwa zvekudya, uye zvekudya zvinowedzera. Hypromellose inowanikwa mumagiredhi akasiyana, ane huremu hwemamorekuru hwakasiyana uye madhigirii ekutsiva, zvichienderana nekushandiswa kwakarongwa.

Pakazara, hypromellose inoonekwa seyakachengetedzeka uye inoshivirirwa zvakanaka kana yakashandiswa sekurairwa. Inowanzo shandiswa seajenti yekupfekedza, inokora mumiriri, uye inodzikamisa muzvigadzirwa zvakawanda uye inokosheswa nekugona kwayo kuvandudza kugadzikana kwechigadzirwa, kuwedzera viscosity, uye kuwedzera mashandiro echigadzirwa.

 


Nguva yekutumira: Mar-04-2023
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