1. Chii chinonyanya kushandiswa chehydroxypropyl methyl cellulose?
HPMCinoshandiswa zvakanyanya mukuvaka, machira, masimbi ekugadzira, ceramics, mushonga, chikafu, machira, kurima, zvizorwa, fodya uye mamwe maindasitiri. HPMC inogona kukamurwa kuva maindasitiri giredhi, zvokudya giredhi uye zvokurapa giredhi maererano kushandiswa.
2. Hydroxypropyl methyl cellulose yakakamurwa kuita marudzi akati wandei, ndeupi musiyano uripo pakati pawo?
HPMC inogona kukamurwa kuita pakarepo (chigadzirwa chemhando "S") uye inopisa soluble, pakarepo zvigadzirwa, mumvura inotonhora yakakurumidza kupararira, yakanyangarika mumvura, panguva ino iyo mvura haina viscosity, nekuti HPMC inongopararira mumvura, hapana kuparara chaiko. Inenge maminitsi maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira gel rakajeka uye rinonamatira. Zvigadzirwa zvinopisa zvinonyungudika, zvakaputirwa mumvura inotonhora, zvinogona kukurumidza kupararira mumvura inopisa, zvinonyangarika mumvura inopisa, senge tembiricha inodonha kusvika kune imwe tembiricha (maererano nekushisa kwegel kwechigadzirwa), viscosity inooneka zvishoma nezvishoma, kusvika pakuumbwa kwepachena viscous colloid.
3. Nzira yekuziva sei kunaka kwehydroxypropyl methyl cellulose zviri nyore uye intuitively?
1) kuchena, kunyangwe kuchena kusingakwanise kuona kana HPMC yakanaka, uye kana yakawedzerwa mukugadzira chena, ichakanganisa kunaka kwayo, asi, zvigadzirwa zvakanaka kazhinji kuchena kwakanaka.
2) kunaka: HPMC kunaka kunowanzo 80 mesh uye 100 mesh, 120 chinangwa kushoma, iyo yakatsetseka zviri nani.
3) mwenje transmittance: HPMC mumvura, ichigadzira yakajeka colloid, ona mwenje wayo, iyo yakakura kupinda mukati meiyo yakanaka, tsanangura zvisingaite zvishoma mukati, vertical reaction kettle nemadhigirii kazhinji yakanaka, inotumira imwe yakatwasuka reaction kettle, asi haigone kutsanangura iyo yakatwasuka kettle kugadzirwa kwemhando kuri nani pane manyepo kugadzirwa kwezvinhu zviri nani pane manyepo ekugadzira zvinhu.
4) chikamu: chikamu chikuru, chinorema chiri nani, kupfuura chikuru, kazhinji nekuda kwehuwandu hwehuwandu hwehydroxypropyl mukati, hydroxypropyl content yakakwirira, kuchengetwa kwemvura kuri nani.
4. Ndedzipi nzira dzekuparara kwehydroxypropyl methyl cellulose?
1) Ese mamodheru anogona kuwedzerwa mukati mezvinhu nenzira yakaoma yekusanganisa;
2) Inoda kuwedzerwa zvakananga kune yakajairwa tembiricha yemvura mhinduro, zviri nani kushandisa mvura inotonhora kupararira, mushure mekuwedzera kazhinji mumaminetsi gumi-90 kukora (kukurudzira kumutsa)
3) Mienzaniso yakajairika inogona kunyungudutswa mushure mekusanganiswa uye kupararira nemvura inopisa uye kuwedzera mvura inotonhora mushure mekukurudzira uye kutonhora;
4) Pakunyungudika, kana chiitiko chekubatanidza chikaitika, imhaka yekuti kubvongodza hakuna kukwana kana kuti yakajairika modhi inowedzerwa zvakananga mumvura inotonhora. Panguva ino, inofanira kumutswa nokukurumidza.
5) Kana mabubbles akaitika panguva yekuparara, anogona kubviswa nekumira kwemaawa 2-12 (nguva chaiyo inoenderana nekuenderana kwemhinduro) kana nekutsvaira nekumanikidza, kana nekuwedzera chiyero chakakodzera cheanosvibisa agent.
5 hydroxypropyl methyl cellulose muhuwandu hweputty powder?
HPMC mukushandiswa chaiko kwehuwandu, nemamiriro ekunze, tembiricha, grey calcium mhando, putty poda fomula uye zvinodiwa nevatengi zvemhando dzakasiyana, uye pane misiyano yakatenderedza, kazhinji pakati pe4-5 kilogiramu.
6. Ndeipi viscosity yakakodzera yehydroxypropyl methyl cellulose?
Putty poda inowanzoita 100000 inogona, zvinodiwa nedhaka zvakakwirira, kusvika 150000 zvakangonaka, uye HPMC inonyanya kukosha basa kuchengetedza mvura, inoteverwa nekukora. Mune putty powder, chero bedzi mvura yekuchengetedza zvakanaka, iyo viscosity yakaderera (7-8), zvinogonekawo, hongu, iyo viscosity yakakura, hukama hwekuchengetedza mvura huri nani, kana viscosity inopfuura 100,000, viscosity yekuchengetedza mvura haisi yakawanda.
7. Ndezvipi zvinhu zvakakosha zvehydroxypropyl methyl cellulose?
HPMCmain raw materials: yakanatswa donje, chloromethane, propylene oxide, zvimwe mbishi zvinhu, piritsi alkali, asidhi toluene.
8. Hydroxypropyl methyl cellulose mukushandiswa kweputty powder, basa guru, kana makemikari?
Mune putty powder, thickening, kuchengetedza mvura uye kuvaka kwemabasa matatu. Kukora, cellulose inogona kukwiziridzwa kuti imiswe, kuitira kuti mhinduro irambe iine yunifomu kumusoro uye pasi basa rekurembera-kuyerera. Kuchengeta mvura: ita kuti putty poda iome zvishoma nezvishoma, yekubatsira grey calcium mukuita kwekuita kwemvura. Kuvaka: cellulose lubrication, inogona kuita putty poda ine kuvaka kwakanaka. HPMC haitore chikamu mune chero chemakemikari maitiro, asi inongotora basa rekutsigira.
9 .hydroxypropyl methyl cellulose isiri-ionic cellulose ether, saka chii chinonzi non-ionic?
Muchirevo che layman, inert zvinhu hazvibatanidzi mukuita kwemakemikari.
CMC(carboxymethyl cellulose) is cationic cellulose, saka kusangana negrey calcium inozova bhinzi curd yasara.
10. Ndeapi makuru ehunyanzvi zviratidzo zvehydroxypropyl methyl cellulose?
Hydroxypropyl content
Methyl yemukati
viscosity
ash
Dry uremu kurasikirwa
11. Chii chine hukama nekupisa kwegel kwehydroxypropyl methyl cellulose?
Iyo tembiricha yegel yeHPMC ine hukama neiyo methoxyl yemukati, iyo yakadzika iyo methoxyl yemukati, inokwidza tembiricha yegel.
12 putty powder drop powder uye hydroxypropyl methyl cellulose ukama?
Kana HPMC isiri kuchengetwa kwemvura, inokonzera hupfu.
13 hydroxypropyl methyl cellulose mukushandiswa kweputty powder, putty poda bubble chii chikonzero?
HPMC mune putty poda, kukora, kuchengetedza mvura uye kuvaka kwemabasa matatu, chikonzero chebubble:
1. )Mvura yakawandisa inowedzerwa.
2. )Chikamu chepasi hachina kuoma, uye wobva wakwenya chidimbu pairi, iyo iri nyore zvakare kuputika.
14. Ndeupi musiyano uripo pakati pemvura inotonhora-inonyungudika uye inopisa-inonyungudika hydroxypropyl methyl cellulose mukugadzira?
HPMC mvura inotonhora instant mhinduro mhando iri mushure mekurapa kweglyoxal pamusoro, kuiswa mumvura inotonhora nekukurumidza kuparadzirwa, asi isina kunyatsonyungudika, viscosity kumusoro, inonyungudika. Iyo thermosoluble type haina kubatwa kumeso ne glyoxal. Huwandu hweglyoxal hwakakura, kupararira kunokurumidza, asi viscosity inononoka, chiyero chidiki, pane zvinopesana.
15. Chii nezve hydroxypropyl methyl cellulose hwema?
HPMC inogadzirwa nenzira yekunyungudutsa inogadzirwa netoluene uye isopropyl doro. Kana kugeza kusina kunaka, pachava nekusarira kuravira. (Neutralization kupora ndiyo nzira yakakosha yekunhuhwirira)
16. Nzira yekusarudza yakakodzera hydroxypropyl methyl cellulose yekushandiswa kwakasiyana?
Putty poda: yakakwira yekuchengetedza mvura zvinodiwa, yakanaka yekuvaka inoenderana (yakakurudzirwa giredhi: 75AX100000)
Yakajairwa simende-yakavakirwa dhaka: kuchengetwa kwemvura yakakwira, kupisa kwekushisa kwakanyanya, viscosity pakarepo (yakakurudzirwa giredhi: 75AX150000)
Kushandiswa kwekuvaka glue: zvigadzirwa zvekukurumidza, high viscosity. (Inhamba yemhando inokurudzirwa: 75AX200000S)
Gypsum dhaka: kuchengetwa kwemvura yakakwira, yepakati uye yakaderera viscosity, ipapo viscosity (yakakurudzirwa giredhi: 75AX75000)
17. Zita remadunhurirwa rehydroxypropyl methyl cellulose rinonzi chii?
HPMC kana MHPC alias hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether.
18. Ndeupi musiyano pakati pehydroxypropyl methyl cellulose uyeMC?
MC inonzi methyl cellulose, inonatswa donje mushure mekurapa alkali, methane chloride se etherifying agent, kuburikidza nekutevedzana kwemaitiro uye yakagadzirwa ne cellulose ether, general degree of substitution ndeye 1.6-2.0, dhigirii yakasiyana yekutsiva solubility yakasiyanawo, ndeye isiri-ionic cellulose ether.
(1) Kuchengetwa kwemvura kwemethyl cellulose kunoenderana nehuwandu hwayo hwekuwedzera, viscosity, particle fineness uye dissolution rate. Kazhinji, huwandu hwekuwedzera hwakakura, hunyoro hudiki, viscosity yakakura, mwero wekuchengetedza mvura wakakwira, huwandu hwekuwedzera hune pesvedzero huru pachiyero chekuchengetedza mvura, viscosity uye mwero wekuchengetwa kwemvura hauna kuderera pane hukama, mwero wekunyunguduka unonyanya kuenderana nedhigirii rekugadzirisa uye chidimbu chidiki che cellulose zvidimbu. Methyl cellulose uye hydroxypropyl methyl cellulose mune iri pamusoro akati wandei cellulose ethers ane yakakwirira yekuchengeta mvura mwero.
(2) Methyl cellulose inogona kunyungudutswa mumvura inotonhora, mvura inopisa ichave yakaoma kunyungudika, mhinduro yayo ine aqueous mu pH = 3-12 yakadzikama kwazvo, uye starch, nezvimwewo, uye akawanda ma surfactants ane kugarisana kwakanaka, kana tembiricha inosvika tembiricha yegelation, pachava nechiitiko che gelation.
(3) Shanduko yetembiricha ichakanganisa zvakanyanya mwero wekuchengetedza mvura yemethyl cellulose, kazhinji, iyo yakakwirira tembiricha, kunowedzera kuchengetwa kwemvura. Kana kutonhora kwedhaka kuchipfuura madhigirii makumi mana, kuchengetwa kwemvura kwemethyl cellulose kuchave kwakanyanya kuipa, izvo zvinokanganisa zvakanyanya kuvakwa kwedhaka.
(4)Methyl celluloseine simba riri pachena pakuvakwa nekunamira kwedhaka. Kunamatira pano kunoreva simba rekunamira rinonzwika pakati pechishandiso nemadziro substrate nemushandi, ndiko kuti, shear resistance yedhaka. Kunamatira kwakakura, kupikisa kweshear kwedhaka kwakakura, simba rinodiwa nevashandi mukugadzirisa kushandiswa kwakakurawo, uye kuvakwa kwedhaka kwakashata.
Nguva yekutumira: Kubvumbi-25-2024