Umxholo we-Ash yisalathiso esibalulekileyo sehydroxypropyl methylcelceluplose. Uninzi lwabathengi bahlala bebuza ukuba baqonda ukuba bayaziqonda i-hydroxypropyl methylcelcelceluplose: Yintoni ixabiso le-Ash? Hydroxypropyl methylcelceluplose enemixholo encinci ye-ASH kuthetha ukucoceka okuphezulu; I-SellUlose ngomxholo omkhulu we-Ash kuthetha ukuba zininzi izinto zokungcola ezikuyo, eziya kuthi zichaphazele isiphumo sosetyenziso okanye ukonyusa inani lokudibanisa. Xa abathengi bakhetha i-hydroxypropyl methylcelcelgalose, bahlala ngokuthe ngqo abanye besese umlilo ngomlilo kwaye batshise ukuvavanya umxholo we-lesh. Kodwa le ndlela yokuqaphela ayinasisaveli kakhulu, kuba abavelisi abaninzi bongeza abakhenkethi bokudibanisa kwi-selsulose. Kumphezulu, i-seluplose ine-arth encinci emva kokutsha, kodwa ngokuziqhelanisa, ukugcinwa kwamanzi kwe-hydroplypropyl methylcelgalose ayilunganga.
Ke kufuneka sibubone njani umxholo we-ash ye-hydroxypropyl methylcelcelcelcelcelcelceluplose? Indlela yokuchonga echanekileyo kukusebenzisa isiqithi se-muffles sokufumanisa.
Isixhobo sokuhlalutya isixhobo, isiziko seqondo lemozulu le-Muffile, kwiziko lombane.
INKQUBO YOKUFUNDA:
1) Okokuqala, beka i-30ml porcelain kwi-° sfight yezitoti kwaye itshise kwi-30 imizuzu, ivale isango lesiko lokuthoba amaqondo obushushu kwi-200 ° C, emva koko uthathe ngaphandle kwento embi kwaye uyishukumise kwiliciko ukuba upholile (20 ~ 30) imiz, ubunzima.
2) ubunzima be-1.0 g yehydroxypropyl methylcelceluplosekwibhalansi yohlalutyo, faka isampulu enqabileyo, emva koko ubeke imbeko enesampulu yesitya sombane, upholile kwi-sulfuric acid (0.5-1.0) ML gcwalisa i-carbonization. Emva koko fudukela kwiqondo leqondo eliphezulu le-rofule, tshisa kwi (500 ~ 600) ℃ iyure e-1, xa ubushushu beqondo lezala, xa ubushushu besithando behla ngezantsi kwe-200 Ukupholisa (20 ~ 30) imiz, kwaye emva koko ubunzima bexesha lokuhlalutya.
Intsalela yeBala yokukhupha ibalwa ngokwefomyula (3):
m2-m1
Intsalela yentsalela (%) = × 100 .........................................................................
m
Kwifomula: M1-Ubunzima bento engenanto, kwi-G;
M2 -Umninzi wentsalela kwaye ubethelelwe, kwi;
m - ubunzima besampulu, kwi-g.
Ixesha leposi: Apri-25 ukuya ku-2424