yambitsa
Cellulose ediose ndi ma police osungunuka madzi osungunuka amachokera ku cellulose. Ma poizoni awa ali ndi ntchito zingapo zosiyanasiyana monga chakudya, mankhwala opangira mankhwala, zodzoladzola, ndi zomangamanga, kupanga, kupanga mafilimu, ndikuwonjezera mawonekedwe. Chimodzi mwazinthu zofunikira kwambiri za cellulose etrar ndi kutentha kwawo kwa miyala (TG), kutentha komwe polymer kumayambira gawo kuchokera ku Sol kupita ku gel. Katunduyu ndi wofunikira kwambiri posankha magwiridwe antchito a cellulose eder entervices. Munkhaniyi, tikukambirana za kutentha kwa magetsi a hydroxypyllll (hpmc), imodzi mwazomwe zimagwiritsidwa ntchito kwambiri cellose yokhazikika m'makampani.
Kutentha kwa kutentha kwa hpmc
HPMC ndi mankhwala opaka celluose ense omwe amagwiritsidwa ntchito kwambiri pamapulogalamu osiyanasiyana chifukwa cha zovuta zake. HPMC imasungunuka kwambiri m'madzi, ndikupanga ma viscous ozindikira ma viscous otsika kwambiri. Kumkulu, hpmc amapanga ma gels omwe asinthiratu pakutenthetsa ndi kuziziritsa. Kutentha kwambiri kwa hpmc ndi njira ya magawo awiri yokhudzana ndi mapangidwe a mitulles amatsatiridwa ndi ma micregation a ma mililles kuti apange netiweki (Chithunzi 1).
Kutentha kwa kutentha kwa HPMC kumadalira zinthu zingapo monga kuchuluka kwa zolowetsa (DS), kunenepa, kunenepa, ndi Ph la yankho. Mwambiri, wapamwamba kwambiri ndi wolemera wa HPMC, wokwera kutentha kwa mpweya. Kukhazikika kwa hpmc mu njirayi kumakhudzanso TG, kukweza kwakukulu, ndiye TG. PH ya yankho imakhudzanso TG, ndi njira zothetsera acidic zomwe zimapangitsa kutsika kwa TG.
Kutentha kwambiri kwa HPMC kukuthandizani ndipo kumatha kukhudzidwa ndi zinthu zosiyanasiyana zakunja monga mphamvu ya Shear, kutentha, ndi kuchuluka kwa mchere. Shear imaphwanya mawonekedwe a gel ndikutsitsa TG, pomwe kutentha kwambiri kumapangitsa gelisi kuti isungunuke ndikutsitsa TG. Powonjezera mchere ku yankho kumakhudzanso TG, ndipo kukhalapo kwa miziki monga calcium ndi magnesium kumawonjezera Tg.
Kugwiritsa ntchito TG HPMC
Khalidwe la Thermogull la HPMC imatha kuphatikizidwa ndi mapulogalamu osiyanasiyana. HPMCS yotsika tg imagwiritsidwa ntchito poizoni zomwe zimafuna mpweya wofulumira, monga mchere wambiri, msuzi ndi misup mawonekedwe. HPMC yokhala ndi TG yowonjezereka imagwiritsidwa ntchito pakugwiritsa ntchito mochedwa kapena kutalika kwa nthawi yayitali, monga mapangidwe a njira zoperekera mankhwala osokoneza bongo, mapiritsi osuta, ndi mavalidwe a bala.
M'makampani azakudya, HPMC imagwiritsidwa ntchito ngati thicker, okhazikika komanso opindika. HPMC yotsika imagwiritsidwa ntchito popanga zakudya zomwe zimafunikira kwambiri kuti mupereke mawonekedwe omwe mukufuna komanso pakamwa. HPMC yokhala ndi TG yotalika imagwiritsidwa ntchito popanga mafuta ochepa omwe amachedwa kapena kutalika kwa nthawi yayitali amafunidwa kuti aletse syneresis ndikusunga zida.
M'makampani opanga mankhwala, HPMC imagwiritsidwa ntchito ngati binder, kusakatula ndi kumasulidwa kwa othandizira. HPMC yokhala ndi TG yotalika imagwiritsidwa ntchito popanga mapiritsi otulutsidwa, komwe kumachedwa kapena kutalika kwake kumafunikira kumasula mankhwalawa kwa nthawi yayitali. HPMC yotsika imagwiritsidwa ntchito popanga mapiritsi otsika, pomwe kudzipatula kapena kudzipatula kumafunikira kupereka kamwa komanso mosavuta kumeza.
Pomaliza
Kutentha kwa kutentha kwa HPMC ndi malo ofunikira omwe amasankha machitidwe ake m'njira zosiyanasiyana. HPMC imatha kusintha TG HPMC yokhala ndi TG yotsika imagwiritsidwa ntchito pofuna kugwiritsa ntchito mpweya wothamanga, pomwe HPMC yokhala ndi TG yokhazikika imagwiritsidwa ntchito pazomwe zimafuna kuchedwa kapena kutalika kwake. HPMC ndi njira yosiyanasiyana komanso yosiyanasiyana ya celluse yosiyanasiyana yomwe ili ndi mapulogalamu ambiri omwe angagwiritse ntchito m'mafakitale osiyanasiyana.
Post Nthawi: Aug-24-2023