1. Igama lemveliso:
01. Igama lekhemikhali: i-hydroxypropyl methylcellulose
02. Igama elipheleleyo ngesiNgesi: Hydroxypropyl Methyl Cellulose
03. Isifinyezo sesiNgesi: HPMC
2. Iimpawu zomzimba nezekhemikhali:
01. Inkangeleko: umgubo omhlophe okanye omhlophe qhwa.
02. Ubungakanani bezinto ezincinci; izinga lokupasa le-100 mesh lingaphezulu kwe-98.5%; izinga lokupasa le-80 mesh lingaphezulu kwe-100%.
03. Ubushushu beCarbonization: 280～300℃
04. Uxinano olubonakalayo: 0.25～0.70/cm3 (ngesiqhelo malunga ne-0.5g/cm3), ubunzima obuthile 1.26-1.31.
05. Ubushushu bokutshintsha kombala: 190～200℃
06. Uxinzelelo lomphezulu: Isisombululo samanzi se-2% yi-42 ～56dyn/cm.
07. Iyanyibilika emanzini nakwezinye izinyibilikisi, ezifana ne-ethanol/amanzi, i-propanol/amanzi, i-trichloroethane, njl.njl. ngokwemilinganiselo efanelekileyo.
Izisombululo zamanzi zisebenza ngaphezulu. Ukukhanya okuphezulu, ukusebenza okuzinzileyo, ubushushu bejeli yeemveliso ezineenkcazo ezahlukeneyo
Ngokungafaniyo, ukunyibilika kuyatshintsha kunye ne-viscosity, kokukhona i-viscosity isezantsi, kokukhona ukunyibilika kukhulu, ukusebenza kweenkcukacha ezahlukeneyo ze-hydroxypropyl methylcellulose (HPMC) kunomahluko athile, ukunyibilika kwe-hydroxypropyl methylcellulose (HPMC) emanzini akuchaphazeleki yimpembelelo yexabiso le-PH.
08. Ngokuhla komxholo we-methoxyl, inqaku lejeli liyanda, ukunyibilika kwamanzi kuyancipha, kwaye umsebenzi womphezulu we-hydroxypropyl methylcellulose (HPMC) nawo uyancipha.
09. IHydroxypropyl methylcellulose (HPMC) ikwanayo nokukwazi ukujiya, ukumelana netyuwa, umgubo womlotha ophantsi, uzinzo lwe-PH, ukugcinwa kwamanzi, uzinzo olunemilinganiselo, ipropati entle yokwenza ifilimu, kunye noluhlu olubanzi lokumelana nee-enzyme, iimpawu zokusasazeka ezifana nesini kunye nokunamathela.
Ezintathu, iimpawu ze-hydroxypropyl methylcellulose (HPMC):
Le mveliso idibanisa iipropati ezininzi zomzimba nezekhemikhali ukuze ibe yimveliso eyahlukileyo enokusetyenziswa ngeendlela ezininzi, kwaye iipropati ezahlukeneyo zezi zilandelayo:
(1) Ukugcinwa kwamanzi: Ingagcina amanzi kwiindawo ezinemingxuma efana neebhodi zesamente eludongeni kunye nezitena.
(2) Ukwakheka kwefilimu: Ingenza ifilimu ecacileyo, eqinileyo nethambileyo enokumelana kakuhle neoyile.
(3) Ukunyibilika kwezinto eziphilayo: Le mveliso iyanyibilika kwezinye izinto eziphilayo, ezifana ne-ethanol/amanzi, i-propanol/amanzi, i-dichloroethane, kunye nenkqubo yokunyibilikisa eyenziwe zizinto ezimbini eziphilayo.
(4) Ukufudumala: Xa isisombululo samanzi semveliso sishushu, siya kwenza ijeli, kwaye ijeli eyenziweyo iya kuba sisisombululo kwakhona emva kokuba ipholile.
(5) Umsebenzi womphezulu: Nika umsebenzi womphezulu kwisisombululo ukuze kufezekiswe i-emulsification efunekayo kunye ne-colloid yokukhusela, kunye nokuzinzisa isigaba.
(6) Ukumiswa: Kungathintela ukuna kweenxalenye eziqinileyo, ngaloo ndlela kuthintele ukwakheka kwenkunkuma.
(7) I-colloid ekhuselayo: inokuthintela amathontsi kunye namasuntswana ukuba angadibani okanye ajijeke.
(8) Ukuncamathela: Isetyenziswa njengesincamathelisi semibala, iimveliso zecuba, kunye neemveliso zephepha, inomsebenzi ogqwesileyo.
(9) Ukunyibilika kwamanzi: Imveliso inokunyibilika emanzini ngobuninzi obahlukeneyo, kwaye uxinzelelo lwayo oluphezulu lunqunyelwe kuphela kukuxinana.
(10) Ukungangeni kwe-ionic: Le mveliso yi-non-ionic cellulose ether, engadibaniyo neetyuwa zesinyithi okanye ezinye ii-ion ukwenza iiprecipitates ezinganyibilikiyo.
(11) Uzinzo lwe-asidi-base: ifanelekile ukusetyenziswa ngaphakathi koluhlu lwe-PH3.0-11.0.
(12) Azinancasa kwaye azinavumba, azichaphazeleki yimetabolism; zisetyenziswa njengezongezo zokutya kunye neziyobisi, aziyi kugaywa ekutyeni kwaye aziyi kubonelela ngeekhalori.
4. Indlela yokunyibilikisa iHydroxypropyl methylcellulose (HPMC):
Xa iimveliso ze-hydroxypropyl methylcellulose (HPMC) zongezwa ngqo emanzini, ziya kujika zize zinyibilike, kodwa oku kunyibilika kuhamba kancinci kwaye kunzima. Kukho iindlela ezintathu zokunyibilika ezicetyiswayo ngezantsi, kwaye abasebenzisi banokukhetha eyona ndlela ilula ngokwendlela abazisebenzisa ngayo:
1. Indlela yamanzi ashushu: Ekubeni i-hydroxypropyl methylcellulose (HPMC) inganyibiliki emanzini ashushu, inqanaba lokuqala le-hydroxypropyl methylcellulose (HPMC) linokusasazwa ngokulinganayo emanzini ashushu, kwaye xa sele lipholile, indlela eqhelekileyo ichazwa ngolu hlobo lulandelayo:
1). Faka umlinganiselo ofunekayo wamanzi ashushu kwisitya uze uwafudumeze ukuya kuthi ga kwi-70°C. Yongeza kancinci kancinci i-hydroxypropyl methylcellulose (HPMC) xa uvuselela kancinci, i-hydroxypropyl methylcellulose (HPMC) iqala ukudada phezu kwamanzi, ize emva koko idale i-slurry kancinci, upholise i-slurry phantsi kovuselela.
2). Fudumeza i-1/3 okanye i-2/3 (ubungakanani obufunekayo) bamanzi kwisitya uze uwafudumeze ukuya kuma-70°C. Ngokwendlela yoku-1), sasaza i-hydroxypropyl methylcellulose (HPMC) ukulungiselela i-slurry yamanzi ashushu. Emva koko yongeza amanzi abandayo okanye amanzi omkhenkce aseleyo kwisitya, uze wongeze i-slurry yamanzi ashushu e-hydroxypropyl methylcellulose (HPMC) ekhankanyiweyo apha ngasentla emanzini abandayo, uze uvuselele, uze upholise umxube.
3). Yongeza i-1/3 okanye i-2/3 yamanzi afunekayo kwisitya uze uwafudumale ukuya kuma-70°C. Ngokwendlela yoku-1), sasaza i-hydroxypropyl methylcellulose (HPMC) ukulungiselela i-slurry yamanzi ashushu; Emva koko amanzi abandayo okanye abandayo aseleyo ayongezwa kwi-slurry yamanzi ashushu kwaye umxube uyaphola emva kokuxutywa.
2. Indlela yokuxuba umgubo: amasuntswana omgubo we-hydroxypropyl methylcellulose (HPMC) kunye nenani elilinganayo okanye elikhulu lezinye izithako ezi-powder zisasazeka ngokupheleleyo ngokuxuba okomileyo, zize zinyibilike emanzini, emva koko i-hydroxypropyl methylcellulose Base cellulose (HPMC) inokunyibilika ngaphandle kokuhlanganiswa. 3. Indlela yokumanzisa i-organic solvent: i-pre-disperse okanye i-wet hydroxypropyl methylcellulose (HPMC) ene-organic solvents ezifana ne-ethanol, i-ethylene glycol okanye ioyile, ize inyibilike emanzini. Ngeli xesha, i-hydroxypropyl methylcellulose (HPMC) nayo inokunyibilika kakuhle.
5. Iindlela eziphambili zokusetyenziswa kwe-hydroxypropyl methylcellulose (HPMC):
I-Hydroxypropyl methylcellulose (HPMC) ingasetyenziswa njengesithambisi, isinyibilikisi, i-emulsifier kunye ne-arhente yokwenza ifilimu. Iimveliso zayo zodidi lweshishini zingasetyenziswa kwiikhemikhali zemihla ngemihla, kwii-elektroniki, kwii-resin zokwenziwa, kulwakhiwo nakwiingubo.
1. Ukwenziwa kwe-polymerization yokumiswa:
Kwimveliso yeeresini zokwenziwa ezifana ne-polyvinyl chloride (PVC), i-polyvinylidene chloride kunye nezinye ii-copolymers, i-suspension polymerization isetyenziswa kakhulu kwaye iyimfuneko ukuzinzisa ukumiswa kwee-monomers ze-hydrophobic emanzini. Njenge-polymer enyibilikayo emanzini, iimveliso ze-hydroxypropyl methylcellulose (HPMC) zinomsebenzi ogqwesileyo womphezulu kwaye zisebenza njenge-arhente yokukhusela ye-colloidal, enokuthintela ngempumelelo ukuhlanganiswa kwee-particles ze-polymer. Ngaphezu koko, nangona i-hydroxypropylmethylcellulose (HPMC) iyi-polymer enyibilikayo emanzini, ikwanyibilika kancinci kwii-monomers ze-hydrophobic kwaye yonyusa ukuqina kwee-monomers apho kuveliswa khona ii-particles ze-polymeric, ukuze ikwazi Ukubonelela ii-polymers ngamandla agqwesileyo okususa ii-monomers ezisele kwaye iphucule ukufunxwa kwee-plasticizers.
2. Kwindlela yokwakha izinto zokwakha, i-hydroxypropyl methylcellulose (HPMC) ingasetyenziselwa oku kulandelayo:
1). I-arhente yokuncamathelisa kunye ne-caulking yeteyiphu yokuncamathelisa esekwe kwi-gypsum;
2). Ukubopha izitena, iithayile kunye neziseko ezisekelwe kwisamente;
3). I-stucco esekwe kwi-plasterboard;
4). Iplasta yolwakhiwo esekwe kwisamente;
5). Kwifomyula yokususa ipeyinti kunye nepeyinti.
Ixesha lokuthumela: Meyi-24-2023