Doorka hydroxyethyl cellulose (HEC) ee dahaarka!

Cellulose-ka Hydroxyethyl (HEC), huruud cad ama khafiif ah, aan ur lahayn, aan sun ahayn oo adag oo ah fiiber ama budo, oo lagu diyaariyey etherification of alkaline cellulose iyo ethylene oxide (ama chlorohydrin), oo ka tirsan hidde-sideyaasha cellulose ethers ee milma ee Nonionic. Sababtoo ah HEC waxay leedahay sifooyin wanaagsan oo ah dhumuc, suul, kala firdhi, emulsifying, isku xidhnaan, sameynta filimada, ilaalinta qoyaanka iyo bixinta colloids ilaalin ah, waxaa si weyn loogu isticmaalay sahaminta saliidda, dahaarka, dhismaha, daawada iyo cuntada, dharka, sameynta waraaqaha iyo polymers. Polymerization iyo beeraha kale.

Ka dib marka hydroxyethyl cellulose uu la kulmo rinjiga ku salaysan biyaha?

Maadaama ay tahay surfactant aan ionic ahayn, cellulose hydroxyethyl waxay leedahay sifooyinka soo socda marka lagu daro dhumucda, suuxinta, xidhitaanka, sabeynta, sameynta filimada, kala firdhinta, haynta biyaha iyo bixinta kolloid ilaalin ah:

HEC waxay ku milmaysaa biyaha kulul ama qabow, mana soo daadato heerkul sare ama karkaraya, taasoo ka dhigaysa inay leedahay astaamo badan oo milmi kara iyo dheellitirnaan, iyo sidoo kale jelling aan kuleyl ahayn;

Awoodda haysashada biyaha waa labanlaab ka badan tan methyl cellulose, waxayna leedahay nidaamin socod oo wanaagsan;

Marka la barbardhigo methyl cellulose iyo hydroxypropyl methyl cellulose, awoodda kala firdhinta ee HEC ayaa ah tan ugu xun, laakiin awoodda ilaalinta colloid ayaa ah tan ugu xooggan;

Waa mid aan ionic ahayn waxayna la noolaan kartaa noocyo badan oo polymers kale oo biyaha ku milma, surfactants, iyo milix. Waa dhumuc colloidal aad u fiican oo loogu talagalay xalalka elektrolytka ee xoogga badan.

Sidee loo isticmaalaa cellulose hydroxyethyl?

Ku dar si toos ah wakhtiga wax soo saarka - habkani waa kan ugu fudud oo waqti yar ayuu qaataa:

Bilow inaad si joogto ah u walaaqdo xawaare hoose oo si tartiib ah ugu shaandhee hydroxyethyl cellulose si siman xalka oo sii wad walaaqidda ilaa dhammaan walxaha la qooyo. Kadib ku dar walxaha ilaaliya iyo waxyaabo kale oo lagu daro. Sida midabada, qalabka kala firdhiya, ammonia, iwm. Walaaq ilaa dhammaan hydroxyethyl cellulose ay gebi ahaanba milmaan (dhegxaanta xalka ayaa si weyn u kordheysa) ka hor inta aadan ku darin qaybaha kale ee qaacidada si aad u fuliso falcelinta.

Waxaa ku qalabaysan khamriga hooyada

Waa in marka hore la diyaariyo khamri hooyo oo leh xoog badan, ka dibna lagu daro badeecada. Faa'iidada habkan ayaa ah inuu leeyahay dabacsanaan badan oo si toos ah loogu dari karo badeecada la dhammeeyay, laakiin waa in si habboon loo kaydiyaa. Tallaabooyinka habkan waxay la mid yihiin inta badan tallaabooyinka Habka 1; farqiga ayaa ah inaan loo baahnayn kiciye xiir badan, oo kaliya qaar ka mid ah kiciyeyaasha awoodda ku filan si ay si isku mid ah ugu hayaan cellulose hydroxyethyl si siman ugu kala firdhisan xalka ayaa la isticmaali karaa, oo la sii wado walaaq ilaa uu si buuxda ugu milmo xal fiiqan. Si kastaba ha ahaatee, waa in la ogaadaa in wakiilka antifungal-ka lagu daro khamriga hooyada sida ugu dhakhsaha badan.

Talooyin naxariis leh:

Maadaama hydroxyethyl cellulose-ka dusha sare lagu daweeyay uu yahay mid adag ama budo ah, marka aad diyaarinayso khamriga hooyada ee hydroxyethyl cellulose, xasuusi inaad fiiro gaar ah u yeelato qodobbada soo socda:

Kahor iyo ka dib marka lagu daro hydroxyethyl cellulose, waa in la walaaqo ilaa xalka uu noqdo mid gebi ahaanba hufan oo cad;

Waa in si tartiib ah loogu shaandheeyaa foostada isku darka, oo aan si toos ah ugu xidhin burooyinka ama spheroids iyo hydroxyethyl cellulose foostada isku darka;

Heerkulka biyaha iyo qiimaha pH ee biyuhu waxay xiriir muhiim ah la leeyihiin kala dirista hydroxyethyl cellulose, sidaa darteed waa in fiiro gaar ah loo yeesho;

Ha ku darin walxo alkaline ah isku darka ka hor inta uusan bilaabancellulose hydroxyethylBudada waxaa lagu qooyay biyo. Kordhinta qiimaha pH ka dib marka la qooyo waxay gacan ka geysan doontaa milmida;

Inta suurtogalka ah, ku dar wakiilka antifungal kahor;

Marka la isticmaalayo hydroxyethyl cellulose oo leh viscosity sare, heerka khamriga hooyada waa inaanu ka badnayn 2.5-3% (miisaan ahaan), haddii kale khamriga hooyada way adag tahay in la maareeyo.