Hydroxypropyl methylcellulose (ka bokhutšoanyane HPMC) ke ether ea bohlokoa e tsoakiloeng, e leng polymer e sa qhibiliheng metsing e sa ionic, 'me e sebelisoa haholo lijong, meriana, indastering ea lik'hemik'hale ea letsatsi le letsatsi, ho koahela, karabelo ea polymerization le kaho e le ho emisoa ha ho hasana, ho teteana, ho emulsifying, ho tsitsisa le likhomaretsi, jj., 'me ho na le lekhalo le leholo' marakeng oa lehae.
Hobane HPMC e na le thepa e babatsehang e kang ho teteana, ho kopanya, ho etsa filimi, ho sireletsa colloid, ho boloka mongobo, ho khomarela, ho hanyetsa li-enzyme le ho se sebetse hantle ha metabolism, e sebelisoa haholo ho koaheleng, liketsong tsa polymerization, thepa ea kaho, tlhahiso ea oli, masela, lijo, meriana, liseramike tse sebelisoang letsatsi le letsatsi, lisebelisoa tsa elektroniki le peo ea temo le mafapha a mang.
Bthepa ea ho haha
Thepeng ea kaho, HPMC kapa MC hangata e eketsoa ho samente, seretse le seretse ho ntlafatsa thepa ea kaho le ea ho boloka metsi.
HPMC e ka sebelisoa ho:
1). Sesebediswa sa ho kgomarela le ho kwala bakeng sa theipi ya ho kgomarela e thehilweng hodima gypsum;
2). Ho kopanngoa ha litene, lithaele le metheo e thehiloeng samenteng;
3). Stucco e entsoeng ka plasterboard;
4). Polasetara ea sebopeho e thehiloeng samenteng;
5). Ka mokhoa oa ho tlosa pente le pente.
Sekhomaretsi bakeng sa lithaele tsa ceramic
Likarolo tsa HPMC 15.3
Likarolo tsa Perlite 19.1
Li-amide tse mafura le metsoako ea cyclic thio likarolo tse 2.0
Letsopa likarolo tse 95.4
Linoko tsa silika (22μ) likarolo tse 420
Likarolo tse 450.4 tsa metsi
E sebelisoa ka samente e kopantsoeng le litene tse sa tloaelehang, lithaele, majoe kapa samente:
HPMC (tekanyo ea ho hasana 1.3) 0.3 likarolo
Samente ea Cattelan likarolo tse 100
Lehlabathe la silika likarolo tse 50
Likarolo tse 50 tsa metsi
E sebelisoa e le sesebelisoa sa ho haha samente se matla haholo:
Samente ea Cattelan likarolo tse 100
Likarolo tse 5 tsa asbestos
Karolo e le 'ngoe ea ho lokisa joala ea polyvinyl
Calcium silicate likarolo tse 15
Letsopa la likarolo tse 0.5
Likarolo tse 32 tsa metsi
Likarolo tsa HPMC 0.8
Indasteri ea pente
Indastering ea pente, HPMC e sebelisoa haholo penteng ea latex le likarolo tsa pente ea resin e qhibilihang ka metsing e le moemeli oa ho etsa filimi, setenya, emulsifier le stabilizer.
Ho emisoa ha Polymerization ea PVC
Tšimo e nang le tšebeliso e kholo ka ho fetisisa ea lihlahisoa tsa HPMC naheng ea heso ke polymerization ea vinyl chloride e emisitsoeng. Ho polymerization ea vinyl chloride e emisitsoeng, sistimi ea ho hasana e ama ka ho toba boleng ba resin ea PVC ea sehlahisoa le ts'ebetso ea eona le lihlahisoa; e ka ntlafatsa botsitso ba mocheso ba resin le ho laola kabo ea boholo ba likaroloana (ke hore, ho lokisa bongata ba PVC). Bongata ba HPMC bo etsa 0.025% ~ 0.03% ea tlhahiso ea PVC.
Resine ea PVC e lokisitsoeng ke HPMC ea boleng bo holimo, ntle le ho netefatsa hore ts'ebetso e fihlela maemo a naha, e boetse e na le thepa e ntle ea 'mele, litšobotsi tse ntle tsa likaroloana le boitšoaro bo botle ba rheological bo qhibilihang.
Oindasteri ea bona
Liindasteri tse ling li kenyelletsa haholo-holo litlolo, tlhahiso ea oli, sesepa sa ho hlatsoa, li-ceramic tsa ntlo le liindasteri tse ling.
Wmetsi a qhibilihang
HPMC ke e 'ngoe ea li-polymer tse qhibilihang ka metsing, 'me ho qhibiliha ha eona ka metsi ho amana le litaba tsa sehlopha sa methoxyl. Ha litaba tsa sehlopha sa methoxyl li le tlase, e ka qhibiliha ka har'a alkali e matla 'me ha e na ntlha ea thermodynamic gelation. Ka keketseho ea litaba tsa methoxyl, e ba bonolo ho ruruha ha metsi 'me e qhibiliha ka har'a alkali e hlapolotsoeng le alkali e fokolang. Ha litaba tsa methoxyl li le >38C, e ka qhibiliha ka metsing, 'me e ka boela ea qhibiliha ka har'a halogenated hydrocarbons. Haeba acid e tloaelehileng e eketsoa ho HPMC, HPMC e tla hasana kapele ka metsing ntle le ho hlahisa lintho tse sa qhibiliheng. Sena se bakoa haholo ke taba ea hore acid e tloaelehileng e na le lihlopha tsa dihydroxyl boemong ba ortho holim'a glycogen e hasantsoeng.
Nako ea poso: Tshitwe-07-2022